--- title: "10 Best AI Automation Agencies for B2B Teams in 2026" description: "Compare 10 AI automation agencies by what they automate, what their results count, and what keeps running after handover, with prices and upkeep costs." url: https://frontal.so/blog/best-ai-automation-agencies updated: 2026-11-04 --- Work with Frontal Want us to run this for you? Book a call and we’ll walk you through how we would make it work for you. [Book a call](https://book.frontal.so) GTM # 10 Best AI Automation Agencies for B2B Teams in 2026 [Kenny Damian](https://www.linkedin.com/in/kenny-damian-90aba221a/) 28 min read Head of GTM Updated Nov 4, 2026 ## Key Takeaways - For a custom agent written in code, start with NineTwoThree, or Vstorm if you want proof on your own data first. For revenue-team workflows, our pick is Frontal, the go-to-market partner for B2B tech companies, working as an extension of your team. Weigh that knowing we wrote this list. For company-wide operations on no-code platforms, start with XRAY. - Ask what keeps running after launch: Skydog makes handover its deliverable, while FullFunnel keeps operating what it builds. - On the firms’ own sites, starting prices for monthly upkeep run from $350 at Automaly to $4,000 for 40 hours at NineTwoThree, before platform and model costs. - Check what each result counts: sales conversion for Vstorm, research hours for The Kiln, and demos booked and prospecting hours saved for Frontal. The headline operations results we cite involve no AI step. Search for AI automation agencies and Google’s AI Overview points you to tutorials on starting one. On November 4, 2026, 6 of its 13 cited sources were for would-be founders. This list is for buyers: B2B teams, revenue teams first, hiring someone to build AI workflows on n8n, Make, Zapier, Clay or custom code. We judged each agency on what it automates, what its published result counts, and what keeps running after handover. The 10 AI automation agencies here fall into three groups. NineTwoThree and Vstorm write agents in code. Frontal, FullFunnel, Skydog and The Kiln build revenue-team workflows on Clay, CRMs and n8n. Automaly, Connex Digital, flowmondo and XRAY automate company-wide operations, such as finance and onboarding, on Zapier, Make and Airtable. If email and LinkedIn sequences are all you need, a [sales automation agency](https://frontal.so/blog/sales-automation-agency) is the narrower hire. ## What AI Automation Agencies Build for Revenue Teams An AI automation agency builds workflows where software does work people did by hand, with at least one step handled by a language model. It designs the workflow, connects it to your CRM and other systems, and decides where a person still approves. Platforms such as n8n, Make, Zapier and Clay are the tools, and the agency is the team that builds on them. A revenue workflow shows how small the AI step can be. In Frontal’s [reply enrichment play](https://frontal.so/plays/automated-reply-enrichment), an Instantly reply fires a Clay webhook, and “one AI call decides which of four paths the reply takes.” Only interested replies get enriched, synced to HubSpot without duplicates and sent to the rep in Slack. ![Diagram of a five-step reply workflow: a reply fires a Clay webhook, one AI call sorts it into one of four paths, and rule steps enrich interested replies, sync them to HubSpot without duplicates and alert the rep in Slack.](https://frontal.so/images/blog/best-ai-automation-agencies/diagram-of-a-five-step-reply-workflow-a-page.webp) *The reply enrichment play, with its single AI step marked.* Everything except that one call is a rule, so each entry says what its result counts. ## AI Automation Agencies Compared We read each agency’s own pages on November 4, 2026, and a cell that cites Clay’s partner directory says so. | Agency | What it automates | After handover | Price signal | Published result (what it counts) | | --- | --- | --- | --- | --- | | NineTwoThree | Custom agents in code | Code and models in your cloud; optional support | $150K to $600K per agent project | K&L Wines: 14 staff hours saved a day | | Vstorm | One workflow agent at a time | Code yours by contract; runbooks and training | No published rate; Proof of Value first | Mixam: sale conversion from about 20% to about 40% | | Frontal | Clay, CRM and n8n revenue workflows | Built and documented in your accounts; Frontal runs it, or your team takes it over | No published rate; set on a call | Design Pickle: demos booked, about 10 a week to 58 in a record 14 days; Teikametrics: 100+ hours a month back; no case yet proves an AI-agent build | | FullFunnel | Clay, n8n and HubSpot programs | Runs in your environment; FullFunnel keeps running it | $15,000 implementation plus $3,600 a month | Unnamed client: 11 qualified meetings in 30 days | | Skydog | CRM agents on Salesforce and HubSpot | Your team runs it; support optional | Priced per agent; Clay lists $10k+ a month | No outcome figure | | The Kiln | Clay data engines and lead scoring | No handover terms on its site | No published rate; Clay lists $10k+ a month | Azuga: 640+ manual hours a week removed | | Automaly | Back-office and document workflows | Training and a documented playbook | Assessment from $6,500 | ethiXbase: 260+ hours a year (no AI step) | | Connex Digital | Zapier, Airtable and Notion builds | Client keeps workflows and session recordings | No published rate | Cornerstone University: about 5 hours a week (no AI step) | | flowmondo | Finance and document workflows | Training, then maintenance and monitoring | £199 per 60-minute session | BB7: 80% less time managing automations (no AI step) | | XRAY | Zapier and Airtable systems | You own accounts, code and work | $250 an hour | Semrush: about 900 hours a month (no AI step) | Groups run from custom agents written in code, through revenue-team workflows, to company-wide operations on no-code platforms. Frontal leads its group because it’s our team, and the rest of each group is alphabetical. Put it into practice Want us to run this for you? Book a call and we’ll walk you through how we would make it work for you. [Book a call](https://book.frontal.so) ![Kenny Damian, Head of GTM](https://frontal.so/images/blog/portraits/kenny-damian.webp) ## Custom AI Agent Builders NineTwoThree and Vstorm write agents in code and leave the code with you. They suit work a platform step handles badly, such as reading documents or quoting custom orders. If someone on your team codes, a [Claude Code prototype](https://frontal.so/blog/claude-code-for-gtm) can test the idea before you pay for a production build. ### 1. NineTwoThree, Best for Enterprise Agents Deployed in Your Own Cloud ![NineTwoThree homepage with the headline We help leaders put AI where it actually pays off, a Book a Strategy Call button, a Clutch rating badge and a row of client logos](https://frontal.so/images/blog/best-ai-automation-agencies/ninetwothree-homepage.webp) **Best for:** Enterprises that want every agent component in their own cloud **Based in:** Danvers, Massachusetts, per its Terms; it markets itself as Boston. **What it builds:** Workflow, conversational and document agents, connected through APIs and MCP to Salesforce, HubSpot, Slack, SAP and Jira. Most reach production “in 12 weeks or less,” it says. **Published result (what it counts):** For K&L Wines, a hybrid ML and LLM matching system with a person in the loop saved 14 staff hours a day on SKU lookups. It runs at 99% accuracy in production. **After handover:** Code, trained models and knowledge bases are “deployed into your own cloud infrastructure.” Support is optional, from fully managed to a structured hand-off, with 30 days’ notice to cancel. **Why teams pick it:** - **Ownership in writing.** No licensing fee and no dependency on its platform. - **Both prices published.** The build band and upkeep plans are on its site. **Trade-offs:** - **Six-figure entry point.** The build band starts at $150K. - **Not agent-only.** Mobile, web and IoT apps share its menu. **Cost:** Agent projects “typically range from $150K to $600K,” after a paid Discovery Workshop. Upkeep starts at $2,500 a month for low-code work and $4,000 a month for 40 hours of custom AI support. ### 2. Vstorm, Best for Proving an Agent on Your Data Before the Build ![Vstorm homepage with the headline Workflows agentified by core contributors, a line calling it an agentic AI engineering company, and a row of client logos including Intel and Tetra Pak](https://frontal.so/images/blog/best-ai-automation-agencies/vstorm-homepage.webp) **Best for:** Teams that want an agent tested on their own data first **Based in:** Wrocław, Poland. **What it builds:** Vstorm calls itself “an agentic AI engineering company” and builds one workflow agent at a time, with frameworks such as Pydantic AI and LangGraph. The agent runs in your environment, and “the model stays replaceable.” **Published result (what it counts):** At Mixam, a UK self-publishing printer, Vstorm reports its order agent lifted conversion to a final sale from about 20% to about 40%. It attributes about $200K a month of added revenue to the agent, against about $2K a month in tokens. **After handover:** “The code and decision logic are yours by contract,” with runbooks and team training. No maintenance retainer or SLA is published. **Why teams pick it:** - **A go or no-go gate.** The full build waits for a target agreed in advance. - **A revenue result.** Mixam’s figures count sales, not hours. **Trade-offs:** - **No price to compare.** Cost depends on workflows, systems and hosting. - **No published support terms.** Ask who fixes the agent after launch. **Cost:** No published rate. A Proof of Value comes first and shows the running costs, and “a build goes ahead only after its Proof of Value meets the agreed threshold.” ## GTM and Revenue Workflow Agencies The four firms here build the workflows a sales team runs on: enrichment, scoring, routing and CRM updates on Clay, HubSpot, Salesforce and n8n. That work now goes by the name [GTM engineering](https://frontal.so/blog/what-is-gtm-engineering), and the four split sharply on who runs it after launch. Frontal, FullFunnel and The Kiln hold the same Elite Studio tier in Clay’s partner program, so that credential won’t separate them. ### 3. Frontal, Best for Revenue Workflows Wired Into Tools You Already Own ![Frontal homepage on a black background with the headline The extension of your go-to-market team, the line Your GTM partner, responsible for qualified pipeline across every channel, and an email box beside a Book a Call button](https://frontal.so/images/blog/best-ai-automation-agencies/frontal-homepage.webp) **Best for:** Sales teams paying for Clay and a CRM that don’t yet work as one system **Based in:** Headquartered in Shanghai, with a remote team. **What it builds:** Frontal is the go-to-market partner for B2B tech companies, working as an extension of your team. Through its GTM Services work, it builds and runs the workflows a sales team relies on. Those include an AI workflow that researches each target account and writes the summary into the CRM, signal-based outbound, and Clay tables, CRM updates and lead routing on n8n, HubSpot and Salesforce. Its [RevOps work](https://frontal.so/services/revops) adds AI workflows for research, enrichment and data entry inside HubSpot or Salesforce, and trains your team to run what it builds. The work suits a company past product-market fit with a real sales team, and most clients start with one service. **Published result (what it counts):** Design Pickle, a design subscription platform with 201 to 500 employees, already paid for Clay, Apollo and HubSpot. “What was missing was the system connecting them,” its case page says. Frontal built four pieces. Vector identified companies browsing the site, and Clay enrichment and qualification logic chose “which companies deserve a seat on an AE’s calendar, automatically.” Each audience got its own messaging, and a deliverability setup synced everything into HubSpot. The [Design Pickle case study](https://frontal.so/case-studies/design-pickle) reports demos rising from about 10 a week to 58 in 14 days, with AE calendars going from under 50% to 100% full. The 58 counts demos booked in a record two-week window, not a weekly average and not pipeline. Bill Rose, Outbound Growth and Automation Lead at Design Pickle, said: “Before ColdIQ, we had a few demos booked a week. Now, we have broken our demo booking record, securing 58 demos in the past two weeks. Our Account Executive’s calendar is now full, so we have to bring other AEs to keep up with the demand.” ColdIQ Agency became Frontal. For a result counted in hours, the [Teikametrics case study](https://frontal.so/case-studies/teikametrics) is closer to this list. Clay and the SmartScout API replaced manual prospecting, enrichment and sending, and the sales team got 100+ hours back each month, with $300K+ in pipeline by month 9. **After handover:** Frontal builds the workflows in your accounts and can keep running them, working in your CRM and Slack like the rest of your team. Every list, table and workflow is documented so your team can read and change it, whether Frontal keeps running the work or you take it over later. At [Novel](https://frontal.so/case-studies/novel), the system went to Novel’s team when the engagement ended in December 2024, with hands-on sessions on the tools. Its Terms transfer ownership of the work upon full payment, and Frontal keeps its pre-existing methods and reusable tooling. **Why teams pick it:** - **Built on what you already pay for.** Design Pickle’s system ran inside HubSpot, “on software they already owned.” - **Measured on qualified pipeline.** Frontal’s measure is qualified pipeline recorded in your CRM. **Trade-offs:** - **No AI-agent case yet.** No Frontal case study proves an AI-agent build; Design Pickle is a rule-and-data automation result that counts demos booked. - **Go-to-market work only.** Finance and back-office workflows fall outside its services, and the operations group covers those. **Cost:** Scope and pricing are set on a call. To scope a first workflow, [book a call](https://book.frontal.so/). ### 4. FullFunnel, Best for Teams That Want Their Clay and n8n Stack Run for Them ![FullFunnel homepage with the headline Managed support and applied AI for B2B GTM teams above stat cards for organizations served, years in production GTM and B2B focus](https://frontal.so/images/blog/best-ai-automation-agencies/fullfunnel-homepage.webp) **Best for:** Revenue teams that want automations operated for them, not handed over **Based in:** One Bridge Street, Plymouth, New Hampshire. **What it builds:** FullFunnel sells “managed support and applied AI for B2B GTM teams.” Its n8n programs run waterfall enrichment, score and route form fills, and fire sequences on job changes or funding news. It also runs HubSpot agents and a Clay data engine, with Elite Studio status in Clay’s partner program. **Published result (what it counts):** For an unnamed client selling to independent retail store owners, one workflow ran enrichment, scoring, outreach and LinkedIn ads. It reports 11 qualified meetings and 1 closed deal in 30 days, on under $1,000 of ad spend. **After handover:** You keep the n8n environment on your infrastructure and “a transferable blueprint you own” for Clay. FullFunnel keeps operating it: “You are not handed a workflow to babysit.” **Why teams pick it:** - **A published Clay price.** You can budget before the first call. - **Someone owns production.** You don’t need n8n skills on staff. **Trade-offs:** - **A standing fee by design.** The cost lasts as long as FullFunnel runs it. - **An unnamed client.** The automation case doesn’t name the company. **Cost:** The Clay Enterprise Data Engine is a $15,000 implementation plus $3,600 a month, with 10 support hours included. Managed Support runs 20 to 100 hours a month on 60-day rolling contracts, priced on consultation. ### 5. Skydog, Best for CRM Agents Your Team Takes Over in 12 Weeks ![Skydog homepage on a dark background, with a yellow headline in which Skydog calls itself the #1 CRM and AI partner for private capital firms and B2B tech, above five stars and its own line citing 150+ reviews on G2](https://frontal.so/images/blog/best-ai-automation-agencies/skydog-homepage.webp) **Best for:** Salesforce or HubSpot teams that want agents built, then handed over **Based in:** Not published; its site lists no address. **What it builds:** Its AI Launchpad builds “custom AI agents designed, built, and deployed for your unique business.” One listed agent listens to call recordings, updates the Salesforce deal and posts a Slack recap for approval. Others enrich and score inbound leads in Clay or clean the CRM nightly. **Published result (what it counts):** None with an outcome. At Fetch, Skydog runs the platform end to end and Fetch has zero in-house RevOps staff, a headcount figure rather than pipeline or hours. **After handover:** Its terms are the clearest in this group: “a system your team can run without us is the deliverable,” and ongoing support “is available but never required.” **Why teams pick it:** - **Handover is the deliverable.** Documentation, admin enablement and training come with it. - **Specific agent designs.** Its post-call agent names the fields it updates and where a person approves. **Trade-offs:** - **No outcome figure.** None of its success stories states pipeline or hours saved. - **Split focus.** Its headline puts private capital firms beside B2B tech. **Cost:** “Scoped and priced per agent.” Clay’s partner directory lists $10k+ a month with a 3-month minimum. ### 6. The Kiln, Best for Clay Data Engines That Replace Manual Research ![The Kiln homepage with the headline Expert GTM Engineers, at your fingertips, a banner reading The Kiln has been acquired by 2X, and a grid of client logos](https://frontal.so/images/blog/best-ai-automation-agencies/the-kiln-homepage.webp) **Best for:** Teams replacing a manual lead research desk with Clay workflows **Based in:** No address on its own site. 2X acquired it in January 2026, and its logo reads “a 2X company.” **What it builds:** The Kiln calls itself “a team of automation experts, data scientists, and early Clay employees.” It builds inbound, outbound and RevOps systems, including AI agents that scrape unstructured data, and holds Clay’s Elite Studio tier. **Published result (what it counts):** At Azuga, “640+ manual hours per week were eliminated through automation,” work a 16-person research team had done. Lead connect rates rose from 4 to 6% to over 8%. **After handover:** Its own site states no handover terms. A client quote on its homepage says it “recorded detailed SOPs for our team to use after the engagement.” **Why teams pick it:** - **A large, named result.** Azuga is named, with the team size stated. - **Clay depth.** Its team includes early Clay employees. **Trade-offs:** - **A new owner.** It’s now part of 2X, so ask who staffs your account. - **No written handover terms.** Put documentation and access in the contract. **Cost:** No published rate; its Clay directory listing shows $10k+ a month and a three-month minimum. ## Operations and Back-Office Automation Agencies The four firms here automate company-wide work such as invoicing, onboarding and documents, mostly on Zapier, Make and Airtable. Each describes AI steps on its own pages or partner profile, but the named result we cite for each comes from automation with no AI step described. If what you want automated is sales follow-up rather than finance or HR, [sales workflow automation](https://frontal.so/blog/sales-workflow-automation) belongs with the revenue group instead. ### 7. Automaly, Best for a Priced Assessment Before Any Build ![Automaly homepage on a purple background with the headline Grow Revenue without Growing Complexity, platform badges and a line crediting 260+ hours a year saved for ethiXbase](https://frontal.so/images/blog/best-ai-automation-agencies/automaly-homepage.webp) **Best for:** Growing firms that want automation ideas ranked by return before a build **Based in:** London, per its registered address; it works remotely. **What it builds:** Onboarding, approval, invoicing and reconciliation workflows, plus document agents that “extract, classify, and route data from documents, emails, and forms.” Make’s directory lists it as a certified Make partner. **Published result (what it counts):** ethiXbase, a compliance-solutions provider, saves more than 260 staff hours a year after 15 manual processes became 3 automated workflows. That build, a CRM plus outbound and enrichment automation, describes no AI step. **After handover:** Team training and a documented playbook come with each build, and a support-only plan covers monitoring and fixes with no minimum term. **Why teams pick it:** - **A full price ladder.** Every step has a published starting price. - **Low-cost upkeep.** Support starts at $350 a month. **Trade-offs:** - **No ownership statement found.** Get account and code ownership in writing. - **Thin AI evidence.** Its Pattrn Data chatbot case reports “a 6-figure contract” the client won, with no usage or time figure. **Cost:** An AI Readiness Assessment from $6,500, refunded if it finds fewer than 5 ROI-positive opportunities. Design, Build & Deploy starts at $13,000, a Fractional AI Lead at $2,500 a month, and Support only at $350 a month. ### 8. Connex Digital, Best for Live Zapier Build Sessions With AI Steps ![Connex Digital homepage with the headline Bring AI to your team without hiring FTE Engineers, ringed by app icons including Notion, Zapier, Airtable, Make and OpenAI](https://frontal.so/images/blog/best-ai-automation-agencies/connex-digital-homepage.webp) **Best for:** Teams that want to build automations on live calls with an expert **Based in:** Grandville, Michigan. **What it builds:** Workflows on “no-code platforms like Zapier, Airtable, and Notion,” with ChatGPT, Claude and AI agents wired into Zaps for triage, drafting and data cleanup. Zapier’s directory lists it as Platinum. **Published result (what it counts):** Cornerstone University automated a daily enrollment report with Zapier. The university estimated the time saved at about five hours a week, with no AI step. **After handover:** “The client team retained full ownership and visibility of every workflow built,” Connex says of one project, and each session recording stays with you. **Why teams pick it:** - **Recordings you keep.** Each session leaves a recording and a written summary. - **A confirmed Zapier tier.** Platinum, per Zapier’s own directory. **Trade-offs:** - **No price to compare.** You can’t budget before booking. - **A small named result.** About five weekly hours, from a rule-based build. **Cost:** No published rate; its booking pages show no price before you pick a consultant. ### 9. flowmondo, Best for Finance and Document Workflows at Engineering Firms ![flowmondo pink homepage hero reading AI solutions for technical services, beside cards about its team and a project-tracker mockup for milestone-based invoicing](https://frontal.so/images/blog/best-ai-automation-agencies/flowmondo-pink-homepage.webp) **Best for:** Engineering, construction and industrial services firms automating finance work **Based in:** London, per its registered office. **What it builds:** flowmondo is a 17-person UK consultancy that narrowed its focus to engineering, construction and industrial services in 2025. It automates accounts payable, purchase orders, sales tax and document extraction, with AI steps built on “structured data, versioned prompts and control mechanisms.” Zapier lists it as Platinum, Make as Silver and Airtable as certified. **Published result (what it counts):** BB7 cut time spent managing automations by 80%, and Doormatic cut manual invoicing time by 75%. Both count staff time with no window, the full case pages read “Coming Soon,” and neither names an AI step. **After handover:** It trains your team “to adopt, manage and extend” the system, then offers maintenance and monitoring. We found no statement on who owns the accounts. **Why teams pick it:** - **Three platform tiers confirmed.** Zapier, Make and Airtable each list it. - **A cheap first test.** One £199 session shows how the team works. **Trade-offs:** - **Thin public evidence.** Three result cards, and no full case studies yet. - **Narrow focus.** It targets engineering, construction and industrial services. **Cost:** A 60-minute InstantBuild session costs £199, or £399 when urgent. Retainers and projects carry no published rate. ### 10. XRAY, Best for Low-Code Engineering Hours With Ownership in Writing ![XRAY homepage with the headline Where process amplifies people above the line We design intelligent ways of working with AI and automation for purpose-led teams](https://frontal.so/images/blog/best-ai-automation-agencies/xray-homepage.webp) **Best for:** Zapier and Airtable teams that want hourly engineering, not a retainer **Based in:** No city on its own site; Airtable’s partner directory lists New York. **What it builds:** Zapier connections to Airtable, Claude, OpenAI, Slack, HubSpot, Salesforce and QuickBooks, with “AI steps that draft, summarize, and route work, so people review instead of retype.” Zapier lists it as Platinum and Airtable as a Gold Services Partner. **Published result (what it counts):** For Semrush, an Airtable system triaging feedback from Slack, Salesforce and Intercom saved “approximately 900 hours” a month for 145 product owners. It took 25 hours of XRAY work and uses keyword matching, not AI. **After handover:** “You own all the accounts, code, and work that the engineer produces.” At Green Check Verified, the client says, “we’ve been able to manage the system ourselves for over five years.” **Why teams pick it:** - **Ownership plus access control.** You own the work, and XRAY never holds your passwords. - **Proof that it lasts.** Green Check has run its system in-house for over five years. **Trade-offs:** - **No AI in the named results.** Both cases we read are rule-based. - **$15,000 before a build quote.** Larger projects start with the paid sprint. **Cost:** $250 an hour in packs of 4, 10 or 20 hours, with no retainer. Larger work starts with a $15,000 design sprint, and the build is quoted after. ## What Keeps Running After Handover Nine of the 10 firms here say what happens after launch, but only four publish what they charge to keep it running. On [r/AI\_Agents](https://www.reddit.com/r/AI_Agents/comments/1k3t3ga/), a builder who says they spent 18 months making custom agents for businesses wrote: “Building the agent is only 30% of the battle. Deployment, maintenance, and keeping up with API changes will consume most of your time.” It’s one builder’s estimate on Reddit, not a measurement. Running cost goes beyond the agency’s fee. In [McKinsey’s 2026 State of AI](https://www.mckinsey.com/capabilities/quantumblack/our-insights/the-state-of-ai) survey, one in five respondents said their organization limits AI use because of operating costs. That share was broadly consistent across company sizes. Most agencies here sell one of three after-launch models. Skydog, Vstorm and XRAY hand the system to your team with documentation and training. FullFunnel keeps running what it builds. NineTwoThree and Frontal let you choose: they can keep operating the system, or hand it to your team. Before you sign, get five answers in writing: - Whose accounts hold the workflows, Clay tables, API keys and model billing. - Who gets alerted when a step fails, and how fast it gets fixed. - What it costs each month to run, counting seats, credits and model tokens. - Which documents, recordings and training you receive. - How much notice ends support, and what keeps working afterward. Put your data rules in the same document. Frontal’s [RevOps work](https://frontal.so/services/revops) follows one worth copying: “Enrichment fills gaps and never overwrites a field a person owns.” ## How Much AI Automation Agencies Cost £199 buys the smallest published unit of work on this list: a 60-minute flowmondo build session. At the top, NineTwoThree prices enterprise agent projects at $150K to $600K. Five of the 10 AI automation companies here publish no rate on their own sites: Vstorm, Frontal, Skydog, The Kiln and Connex Digital. The table splits the cost of going live from the cost of keeping it running. | Agency | To start or build | To keep it running | | --- | --- | --- | | NineTwoThree | $150K to $600K per agent project | From $2,500 a month for low code; $4,000 a month for 40 hours of custom AI | | FullFunnel | $15,000 Clay engine implementation | $3,600 a month with 10 support hours | | Automaly | Assessment from $6,500; build from $13,000 | Support from $350 a month | | XRAY | $15,000 design sprint, or $250 an hour | Hourly packs from $1,000 | | flowmondo | £199 per 60-minute session | No published retainer rate | | Vstorm | No published rate | About $2K a month in tokens on its Mixam case | | Skydog, The Kiln | Clay’s directory lists $10k+ a month, 3-month minimum | No published rate on their sites | | Frontal, Connex Digital | No published rate | No published rate | Ask which platform bills sit outside the agency’s fee, such as automation seats, Clay credits and model tokens. When a workflow fills records from outside data, compare [lead enrichment services](https://frontal.so/blog/best-lead-enrichment-services) before the build locks one in. ## Agency, In-House Build or Off-the-Shelf Tool Buy a platform and build it yourself when one person on staff can own a simple workflow. Hire an agency when a workflow crosses several systems and nobody internal can maintain the integrations. Build in-house when the agent is part of what you sell. One study favors outside vendors, with caveats. In [MIT NANDA’s 2025 report](https://web.archive.org/web/20250818145714/https://nanda.media.mit.edu/ai_report_2025.pdf), initiatives that bought from or co-built with outside tool vendors reached deployment about 67% of the time, against about 33% for internal builds. That comes from interviews with 52 organizations, and the authors say it may not represent the wider market or prove causation. It compares tool vendors, not agencies. The same report found top performers’ gains came from “replacing BPOs and external agencies,” so outside help is a cost to justify. A middle route is a [forward deployed engineer](https://frontal.so/blog/forward-deployed-engineering), an outside engineer who works inside your team, which is how Skydog’s Launchpad runs. ## How to Vet an AI Automation Agency Start with the team. On [r/AI\_Agents](https://www.reddit.com/r/AI_Agents/comments/1ng9d66/finding_legitimate_ai_automation_agencies/), a seller of B2B services met three AI agencies in a month that wouldn’t say who worked there. An automation agency owner replied that most self-styled agency owners they’d met had only learned Make or n8n. Their test: “If they’re secretive, they most likely don’t have a real team.” It’s a single Reddit thread, so treat it as anecdote. Next, ask each agency to name the people who’ll build and maintain your workflow. Ask for a past result and what it counts: hours, conversion, meetings or revenue. Ask which model providers will see your customer data, and on what retention terms. Last, ask where a person approves before anything reaches a customer. Frontal’s [meeting prep play](https://frontal.so/plays/meeting-prep-and-follow-up) shows one pattern: Claude writes the pre-call brief, the workflow drafts the follow-up email, and “a human reads and sends it.” ## How We Chose These AI Automation Companies We started from the firms named on 16 ranking pages for this search and in the Clay, Zapier, Make and n8n partner directories. We then checked each candidate’s own site on November 4, 2026. Four checks decided the list: - Its own pages say it builds AI automation for clients today. - It publishes a client result, and the page says what the figure measures. - It says what the client keeps, or who runs the system after launch. - It sells a service, not mainly its own software or a course on starting an agency. Skydog is the one exception to the second check: it publishes no outcome figure and made the list for its handover terms. The Kiln meets the third only through a client quote on its homepage. Five of the 16 lists of top AI automation agencies we read mix platforms in with service firms, so we kept n8n, Make, Zapier and Clay out. O8 ranked first in Google for this search on November 4, 2026, but it’s a full-service marketing agency with no automation case figure on its site. Clay specialists such as Understory and Sculpted also build revenue workflows, and we left them out because our [Clay automation agencies](https://frontal.so/blog/best-clay-automation-agencies) roundup already ranks them. ## Start With One Workflow and the Person Who’ll Own It Pick the single workflow that costs your team the most hours or missed follow-ups, and name who’ll own it after launch. Send that brief to two agencies from the matching group, and compare their answers on handover and monthly running cost, not only the build fee. If the workflow starts from a target list, settle your [outbound data sources](https://frontal.so/blog/outbound-list) first, because every step after enrichment inherits their gaps. Building revenue workflows on Clay, HubSpot or Salesforce is what our team does at Frontal. Bring one workflow and the tools it touches to the first call. [Book a call](https://book.frontal.so/) ## Frequently Asked Questions ### Who are the best AI automation agencies in 2026? For custom agents in code: NineTwoThree and Vstorm. For revenue-team workflows: Frontal (our own team), FullFunnel, Skydog and The Kiln. For company-wide operations on no-code platforms: Automaly, Connex Digital, flowmondo and XRAY. Choose the group first, then compare handover terms. ### What’s the difference between an AI automation agency and an automation platform? A platform such as n8n, Make, Zapier or Clay is the software a workflow runs on. An agency designs, connects and often maintains the workflow, so you pay for both. ### Should you hire an AI automation agency or build in-house? Hire when a workflow touches several tools that no one on staff can keep running. In MIT NANDA’s interviews with 52 organizations, buying from or co-building with outside tool vendors got initiatives deployed about twice as often as internal builds. That compares vendors, not agencies. ### How much does it cost to keep an AI automation running? On the firms’ own sites, upkeep plans start anywhere from $350 a month, Automaly’s support plan, to $4,000 a month for 40 hours at NineTwoThree. Model tokens and platform credits come on top: Vstorm’s Mixam agent runs on about $2K a month in tokens. ### How long does an AI automation build take? Published timelines run two to three months. NineTwoThree puts most enterprise agents in production within 12 weeks, Skydog’s Launchpad goes live in 12 weeks, and FullFunnel’s Clay engine includes a 60-day stand-up. ### Is Frontal an AI automation agency? For revenue teams, yes. Frontal is the go-to-market partner for B2B tech companies. Its [GTM Services](https://frontal.so/services/gtm-engineering) build and run revenue workflows, from Clay tables to AI account research written into the CRM, and its RevOps work covers lead routing, CRM automation and AI workflows for research, enrichment and data entry. It doesn’t automate finance or back-office work. Most clients start with one service. About the author Kenny Damian Head of GTM Kenny leads GTM at Frontal, working on outbound, account research and sales operations. His articles explain how to qualify signals, enrich account data and turn that context into outreach and a clear sales handoff. Work with Frontal Want us to run this for you? Book a call and we’ll walk you through how we would make it work for you. [Book a call](https://book.frontal.so) ## Keep reading [Browse all articles ↗](https://frontal.so/blog) GTM Oct 12, 2026 ### [Forward Deployed Engineering for B2B Companies](https://frontal.so/blog/forward-deployed-engineering) What forward deployed engineering means for B2B companies, not job-seekers: the model, the scarcity problem, and whether to hire, build, or partner. **[Kenny Damian](https://www.linkedin.com/in/kenny-damian-90aba221a/)** Head of GTM [Read article](https://frontal.so/blog/forward-deployed-engineering) GTM Oct 15, 2026 ### [What Is GTM Engineering? A Guide for B2B Revenue Leaders](https://frontal.so/blog/what-is-gtm-engineering) GTM engineering builds the lists, signals and CRM workflows behind your pipeline. What GTM engineers do, how it differs from RevOps, and when to hire or partner. **[Alex Vacca](https://www.linkedin.com/in/alex-vacca)** Founder, Frontal [Read article](https://frontal.so/blog/what-is-gtm-engineering) GTM Oct 21, 2026 ### [Best GTM Agency in 2026: The Buyer’s Shortlist](https://frontal.so/blog/best-gtm-agencies) The best GTM agency isn’t the one sending the most. It’s the one that can prove revenue. See the 2026 shortlist, ranked on proof. **[Kenny Damian](https://www.linkedin.com/in/kenny-damian-90aba221a/)** Head of GTM [Read article](https://frontal.so/blog/best-gtm-agencies)