--- title: "Generative Engine Optimization Agencies: 10 Best for 2026" description: "10 generative engine optimization agencies scored on press, placement, community and entity work, how each measures share of voice, and published prices." url: https://frontal.so/blog/best-generative-engine-optimization-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) Content # 10 Best Generative Engine Optimization Agencies for 2026 [Alex Vacca](https://www.linkedin.com/in/alex-vacca) 27 min read Founder, Frontal Updated Nov 4, 2026 ## Key Takeaways - Pick Discovered Labs for share of voice with a margin of error, and Arobis AI for Wikidata and G2 fixes. Siege Media runs Reddit from disclosed accounts, and Crackle PR pairs press with accurate company facts. - Of the nine outside firms, only Discovered Labs states all four kinds of citation work in full, and none of the four PR-led firms sells community work. - Ask for the prompts, rivals and raw counts behind any share figure: 27 of Zen Media’s 200 case prompts searched the brand by name. - Arobis AI’s $2,500 Foundation tier is the lowest monthly fee in dollars here. Reboot Online’s GEO starts at £2,500 a month, in pounds. Press coverage, listicles, review sites, Reddit threads and Wikidata entries are where GEO agencies work to get you cited. We scored ten generative engine optimization agencies on which kinds of that work they sell and how they measure share of voice. Discovered Labs, Agenzy and Arobis AI were founded in 2024 or later, and Siege Media and Foundation added GEO to content work. Avenue Z, Reboot Online, Crackle PR and Zen Media work through PR. Our list also includes our own firm, Frontal, the go-to-market partner for B2B tech companies, working as an extension of your team. Facts come from the firms’ own sites, read on November 4, 2026, with prices in each firm’s currency. ## What GEO Means on an Agency Proposal GEO, short for generative engine optimization, aims to get your brand named and cited in AI-generated answers. Firms selling it as its own service mostly work on other sites and report share of voice, the portion of tracked answers that name you. Under the wider label of [AI SEO agencies](https://frontal.so/blog/best-ai-seo-agencies), firms add on-site and technical work. ## The Four Kinds of Citation Work We Counted We drew candidates from the pages ranking for this search, plus firms whose homepages lead with GEO. Group one holds firms founded in 2024 or later with GEO-led homepages. Group three holds firms selling off-site GEO through earned media or PR, and group two holds the rest. We read each firm’s own pages for four kinds of citation work: 1. Digital PR or earned media. 2. Third-party placements in listicles, review sites, directories and partner pages. 3. Community work on Reddit, Quora, YouTube or forums. 4. Entity consistency, such as Wikidata entries and matching company facts across public profiles. A kind sold as a service earns a point, and blog advice doesn’t count. Half a point goes to publications named only as places to land your brand, and to entity work that stays on your site, covers one profile or is an audit. Founder posts on your own LinkedIn don’t count as community work, since you own them. Groups aren’t ranked against each other, and within one, the highest score goes first. Ties go to a firm that names its tracker or writes down its share formula, then to one with a published price. Frontal is the exception: we put it sixth, last in group two whatever its score, because it’s ours. 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) ## Ten Generative Engine Optimization Agencies at a Glance Here’s how the ten generative engine optimization agencies compare, with citation work keyed as (a) digital PR, (b) placements, (c) community and (d) entity work. | Agency | Group | Citation work (of 4) | How it measures share of voice | What its case figure counts | Price as published | | --- | --- | --- | --- | --- | --- | | Discovered Labs | Founded 2024+ | 4: a, b, c, d | Own tracker, 95% credible interval, weekly | AI visibility, 38% to 64% (incident.io, self-reported) | €6,995 a month, six months | | Agenzy | Founded 2024+ | 3: b, c, half a, half d | Peec AI, 50 prompts daily | AI visibility, 0.25% to 11.9% in 90 days (Outcraft AI) | From €5,000 a month ex VAT, six months | | Arobis AI | Founded 2024+ | 2.5: b, d, half a | ZeroRank nightly, formulas published | AI answer share, 7% to 39% in 90 days (unnamed, self-reported) | $2,500 a month, 3-month minimum | | Siege Media | Content-led | 3: a, b, c | Monthly; Peec AI named in one case | 124K ChatGPT sessions in six months, content program (Mentimeter) | Reddit only, $5,000 to $15,000 a month | | Foundation | Content-led | 3: a, b, c | No tool named; monthly, against a baseline | Category citation share, 11.7%, no baseline (Bitly) | None published | | Frontal | Content-led | 0: on-site articles and founder posts, outside the four | No AI-answer tracker, prompt set or method | None published | None published | | Avenue Z | PR-led | 2.5: a, b, half d | Peec in one case; no fixed cadence | AI visibility and AI-referred traffic, no window (Prometeo) | None published | | Reboot Online | PR-led | 2.5: a, b, half d | No tool named; monthly reports | Share of voice in one category, 46% to 78% (TUI) | From £2,500 a month, in pounds | | Crackle PR | PR-led | 2: a, d | No tool named; citation rate defined; monthly | None, by its own statement | $12,000 a month PR floor, six months | | Zen Media | PR-led | 1: a | Own Answer Share metric, monthly | Mentions on 200 prompts, day 7 (unnamed) | $5,000 a month in a 2025 release; none on its site | A score shows which kinds a firm sells, not how well. It also stops at the citation, so routing an AI-referred form fill to the right seller is a [sales workflow automation](https://frontal.so/blog/sales-workflow-automation) job. ## GEO Agencies Founded in 2024 or Later Discovered Labs, Agenzy and Arobis AI lead their homepages with GEO or AI search. Each names its tracker, states a prompt count or statistical rule and sells on-site work, the side [AEO agencies](https://frontal.so/blog/best-aeo-agencies) lead with. ### 1. Discovered Labs, Best for Share of Voice Reported With a Margin of Error ![Discovered Labs homepage with a white headline on a coral and peach gradient, two buttons, and Google, ChatGPT, Claude and Gemini icons under a Get Discovered On label](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/discovered-labs-homepage.webp) **Best for:** Teams that want share-of-voice changes shown with a margin of error. **What stands out:** Its own tracker puts a 95% credible interval on every number and counts a move only when three consecutive runs agree. **Citation work stated:** 4 of 4: digital PR, review sites, a standalone Reddit service, and an audit of the sources AI models read, with inaccurate claims contested. **How it measures share of voice:** Prompts sampled from your Search Console, support and Reddit, with no fixed count. **GEO result it publishes:** incident.io, named: AI visibility “climbed from 38% to 64%” across 10 topics, self-reported, no window stated. **Base and history:** No address or country published; it dates itself to 2024. **Good signs:** - **Leading prompts stripped.** It removes prompts “that artificially inflate mention rate.” - **Reddit sold alone.** Month to month, with no annual lock-in. **Questions to ask:** - **Its Reddit accounts.** It uses “established Reddit accounts with real posting history and karma,” so ask how that fits Reddit’s rules and whether posts disclose the client. - **Euros only.** Agree the billing currency first. **Price as published:** Establish runs €6,995 a month on six months, €1,000 more month to month, and retainers end on 30 days’ notice. ### 2. Agenzy, Best for Reddit and List Mentions Picked From Tracking Data ![Agenzy homepage on a warm off-white background with the headline Show up in AI answers, a free AI visibility audit button and a phone showing a ChatGPT chat](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/agenzy-homepage.webp) **Best for:** Brands that want mentions placed where tracked prompts already pull from. **What stands out:** It picks Reddit threads, forums, industry lists and publications from what its Peec AI tracking shows the engines opening. **Citation work stated:** 3 of 4: list and Reddit placements, plus half each for publications as landing spots and site-plus-LinkedIn entity work. **How it measures share of voice:** Peec AI, 50 prompts daily on three engines, monthly report. **GEO result it publishes:** Outcraft AI, named: AI visibility rose from 0.25% in May to 11.9% in August 2026, on a case tracking 100 prompts. **Base and history:** Vilnius, Lithuania, founded in 2026. **Good signs:** - **A source question.** It adds “how did you find us?” to your forms. - **Tracking you keep.** In-house, “the tracking and the technical base stay with you.” **Questions to ask:** - **A technical first fix.** Outcraft’s robots.txt blocked AI crawlers, so ask how much of the gain came from unblocking them. - **Whose Reddit accounts.** Its pages don’t say, so ask, including whether posts name the client. **Price as published:** From €5,000 a month ex VAT on a six-month retainer, in euros. ### 3. Arobis AI, Best for Wikidata, Crunchbase and G2 Entity Fixes ![Arobis AI homepage in pale pink with a GEO, AEO and AI search optimization headline for B2B SaaS, two buttons, a 40 buyer prompts card and a share of AI answers bar chart](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/arobis-ai-homepage.webp) **Best for:** B2B software teams whose facts disagree across Wikidata, Crunchbase and G2. **What stands out:** It’s the only firm here naming Wikidata work: its AI Search Growth tier covers Wikidata, Crunchbase, G2 and directory consistency, “done for you.” **Citation work stated:** 2.5 of 4: placements and off-site entity work in full, half for publications as placement targets, and no community service. **How it measures share of voice:** ZeroRank nightly, manual checks, a 40-prompt audit and every metric written as a formula. **GEO result it publishes:** An unnamed B2B software client’s share of AI answers, from 7% to 39% in 90 days, self-reported. **Base and history:** Tel Aviv, Israel, founded in 2026. **Good signs:** - **Tool costs absorbed.** “Tool costs are never billed to clients.” - **Named rivals.** The audit sets you beside three named competitors. **Questions to ask:** - **One published report.** It covers one unnamed client, so ask for a second client’s numbers. - **The right tier.** The Wikidata work sits on the $5,000 tier, not the $2,500 one. **Price as published:** Foundation is $2,500 a month and AI Search Growth $5,000, each on a 3-month minimum, then 30 days’ notice. ## GEO Sold Alongside Content Work Siege Media and Foundation sold content marketing in 2022 and lead with GEO today. Frontal joins them because its content engineering service writes GEO articles. ### 4. Siege Media, Best for Reddit Work Run From Disclosed Brand Accounts ![Siege Media homepage with the headline Full-service GEO. We make brands the answer in search., a Get an Assessment button and a scrolling row of client logos](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/siege-media-homepage.webp) **Best for:** Brands that want Reddit work from accounts that say who they speak for. **What stands out:** Its own strategists run the brand accounts behind its Reddit work. **Citation work stated:** 3 of 4: research-led digital PR, affiliate placements on sites like Bankrate and G2, and disclosed Reddit work. **How it measures share of voice:** LLM share of voice on category prompts, monthly, from a baseline; one case names Peec AI. **GEO result it publishes:** Mentimeter, named: ChatGPT “accounted for 124K total sessions over a six month period,” from a content program rather than GEO. **Base and history:** Fully remote, with offices listed in Austin, Chicago, New York and San Francisco. **Good signs:** - **Disclosed accounts.** “Every account we operate is disclosed in its profile.” - **Accounts you own.** Reddit clients own the accounts, subreddit, data and audience. **Questions to ask:** - **A GEO result.** Ask for one from a GEO engagement rather than content work. - **GEO’s own price.** The published range covers Reddit only. **Price as published:** No GEO rate. Reddit work runs $5,000 to $15,000 a month plus ad budgets, on a six-month minimum. ### 5. Foundation, Best for B2B Tech Brands Measured on Category Citation Share ![Foundation homepage on dark navy with the headline Visibility in LLMs. Pipeline in your CRM., two buttons, a row of partner badges and a ring diagram of AI visibility channels](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/foundation-homepage.webp) **Best for:** B2B tech and SaaS brands that want citation share reported against named rivals. **What stands out:** Its Bitly case measures citation share against rival brands in one category, from a Reddit-first program with YouTube and content. **Citation work stated:** 3 of 4: digital PR on original data, editorial placements and mention acquisition, and subreddit management. **How it measures share of voice:** A baseline snapshot of citation share, re-measured monthly. It names no tool or prompt count. **GEO result it publishes:** Bitly, named: 11.7% of AI citations among link shorteners after 12 months, an end level with no baseline, since citation reporting began in month six. **Base and history:** Offices in Philadelphia and Dartmouth, Nova Scotia, working since 2014. **Good signs:** - **No bought links.** “We never buy links or use tactics that don’t hold up over time.” - **A named SaaS case.** Bitly is named, with a 12-month window. **Questions to ask:** - **The Bitly account.** Bitly “committed to a persona account instead of a safe corporate handle,” so ask whether such accounts disclose the client and fit Reddit’s rules. - **Fee and term.** Get both in writing. **Price as published:** None, and no terms or ownership policy either. ### 6. Frontal, Best for GEO Articles Answering Buyers’ Google and ChatGPT Questions ![The What we build table on Frontal's content engineering page, where the search and AI discovery row lists SEO and GEO articles, FAQ pages, and comparison and use-case pages beside Google, ChatGPT and Ahrefs](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/the-what-we-build-table-on-frontal-page.webp) **Best for:** B2B tech companies, such as one past product-market fit with a real sales team, wanting GEO articles from their experts’ interviews. **What stands out:** Frontal is our firm, and its [content engineering](https://frontal.so/services/content-engineering) service writes SEO and GEO articles answering the questions buyers type into Google and ChatGPT. Buying it alone is normal, since most clients start with one service. **Citation work stated:** 0 of 4. Its GEO work is the pages on your own site that answer buyers’ questions, plus LinkedIn and X posts for your founders and team, which this score doesn’t count as community work. **How it measures share of voice:** No AI-answer tracker, prompt set or method is named. Reviews cover rankings, target-account engagement and inbound conversations, with Ahrefs among its tools. **GEO result it publishes:** None yet: Frontal has no published SEO, GEO or AI-search case. **Base and history:** Headquartered in Shanghai, with a remote team; founded in 2023. **Good signs:** - **Search pages in one service.** GEO articles, FAQ pages, and comparison and use-case pages. - **Design and publishing included.** Nothing goes live until your team approves it. **Questions to ask:** - **Monthly volume.** Ask how many pieces a month the statement of work covers. - **Who approves.** Ask who signs off on your side, and how fast. **Price as published:** No fee published. Scope, channels and volume set it on a call, and a statement of work fixes it and how either side may end the engagement. Articles start from your team’s interviews and calls, so bring the expert your buyers most want to hear from to a [first call](https://book.frontal.so/). ## GEO Agencies That Work Through Earned Media and PR Avenue Z, Reboot Online, Crackle PR and Zen Media win citations mainly through press and PR. Coverage reaches whoever reads an outlet, so working a named list of target accounts is a separate job for [account-based marketing agencies](https://frontal.so/blog/best-account-based-marketing-agencies). ### 7. Avenue Z, Best for PR Aimed at the Listicles AI Engines Cite ![Avenue Z homepage on black with the headline We Drive Influence, two buttons and a carousel of phone mockups, one labeled AEO and GEO](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/avenue-z-homepage.webp) **Best for:** Brands that want PR aimed at the publications and listicles AI answers already cite. **What stands out:** Its AEO for PR service first maps which publications and listicles shape AI answers in your category, then secures placements in them. **Citation work stated:** 2.5 of 4: media and listicle placements, plus half for entity work limited to analysis, monitoring and schema. **How it measures share of voice:** Citation share, prompt coverage, position and sentiment, with no fixed cadence; Peec and Looker Studio in one case. **GEO result it publishes:** Prometeo, a named B2B fintech platform: AI visibility up 357% from a 7% baseline and AI referral traffic up 867%, no window stated. **Base and history:** New York, Miami and Orlando, founded in 2023. **Good signs:** - **Six surfaces named.** Google AI Mode is among them. - **Visits beside mentions.** Its case reports AI referral traffic too. **Questions to ask:** - **Earned or bought.** Its media properties sell “a fixed position in relevant listicles,” while its PR service promises listicle placements, so ask which of yours are earned and which bought. - **Your engines.** Prometeo’s baseline covered three, so ask which your reports will cover. **Price as published:** No published rate or service terms. ### 8. Reboot Online, Best for Data-Led Digital PR With Prices in Pounds ![Reboot homepage on dark navy with the headline Get found online, two buttons and tiles for Google, Perplexity, ChatGPT, Claude and Brave](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/reboot-homepage.webp) **Best for:** Brands with data or public-records stories and a budget in pounds. **What stands out:** AiPR, its off-site GEO program, builds coverage from datasets, Freedom of Information requests and research. Its “context wrapping” puts commercially relevant wording around each brand mention. **Citation work stated:** 2.5 of 4: data-led PR and category, award and listicle placements, plus half for on-site entity work and an audit. **How it measures share of voice:** Its own recognition, relevance and recommendation framework, reported monthly, with no tool named. **GEO result it publishes:** TUI, a named consumer travel brand: share of voice in one holiday category, 46% to 78% on 10 prompts, no window stated. **Base and history:** London, fully remote. Its 2022 homepage was titled “SEO Company.” **Good signs:** - **Prompt types split.** It benchmarks branded, category and commercial prompts against rivals. - **Published floors.** Both programs list a starting price. **Questions to ask:** - **A B2B tech case.** Named clients such as TUI, Alan Boswell Group and Numan are consumer and insurance brands, so ask for one. - **Which program.** Ask whether you need GEO, AiPR or both. **Price as published:** GEO from £2,500 a month and AiPR from £8,500, in pounds; no agency terms published. ### 9. Crackle PR, Best for B2B Tech PR With Company Facts Kept Accurate ![Crackle PR homepage on a dark green background with a script logo, a research banner, a serif headline about a B2B tech PR agency built to be cited, and two buttons](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/crackle-pr-homepage.webp) **Best for:** B2B tech companies that want press plus accurate public company facts. **What stands out:** It treats GEO as an earned-media outcome, pairing a media relations plan for the outlets AI systems weigh with accurate facts across public profiles. **Citation work stated:** 2 of 4: media relations and public-profile accuracy. Founder-led advocacy is owned content, so it isn’t counted. **How it measures share of voice:** Proprietary auditing, with no tool named, a citation rate defined in writing and monthly reports. **GEO result it publishes:** None, and it says so: it publishes no “guaranteed citation uplift” as evidence. **Base and history:** The Boston area, founded in 2020. **Good signs:** - **Setup fixed per proposal.** Each names the question set, engines, collection method and cadence. - **Tech only.** Its pricing table lists B2B tech only. **Questions to ask:** - **What GEO adds.** Scope rises from the floor when “GEO programs are layered in,” so ask by how much. - **No street address.** Ask for a registered one for the contract. **Price as published:** $12,000 a month for B2B tech PR, six-month minimum, then month to month, with GEO scoped on top. ### 10. Zen Media, Best for Monthly Press Placements Measured as Answer Share ![Zen Media homepage with the headline B2B PR And Marketing Agency, a Venn diagram of earned media, social media and content marketing, and a row of client logos](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/zen-media-homepage.webp) **Best for:** B2B companies that want monthly press placements and a simple share figure. **What stands out:** Published Monthly sells placements in outlets AI answers draw on, measured as Answer Share, which its 2025 release defines as “the percentage of AI-generated answers where a brand appears.” **Citation work stated:** 1 of 4: monthly placements in “the publications AI models pull from,” with no listicle, community or entity service. **How it measures share of voice:** Answer Share, its own metric, and a monthly dashboard, with no third-party tool. **GEO result it publishes:** An unnamed telecom expense management provider, read once, seven days after a wire release: 428 mentions on 200 prompts, against 332 for the closest rival. **Base and history:** Coral Gables, Florida, working since 2009 by its about page. **Good signs:** - **Order counted.** The client led 300 of 1,000 answers. - **Five engines.** Each case prompt drew five answers. **Questions to ask:** - **A year-old price.** Its site lists no figure now, so ask for today’s. - **Branded prompts.** Of the 200, 27 searched the brand by name, so ask for unbranded results. **Price as published:** None on its site. Its October 16, 2025 release said “starting at $5,000 per month,” on a 12-month commitment. ## How to Judge Citation-Building Work All nine firms besides Frontal sell press or publication work in some form, so what matters is which other kinds each adds: | Kind of citation work | Stated in full | Stated in part | Not stated | | --- | --- | --- | --- | | (a) Digital PR or earned media | Discovered Labs, Siege Media, Foundation, Avenue Z, Reboot Online, Crackle PR, Zen Media | Agenzy, Arobis AI | None | | (b) Third-party placements | Discovered Labs, Agenzy, Arobis AI, Siege Media, Foundation, Avenue Z, Reboot Online | None | Crackle PR, Zen Media | | (c) Community | Discovered Labs, Agenzy, Siege Media, Foundation | None | Arobis AI, Avenue Z, Reboot Online, Crackle PR, Zen Media | | (d) Entity consistency | Discovered Labs, Arobis AI, Crackle PR | Agenzy, Avenue Z, Reboot Online | Siege Media, Foundation, Zen Media | In part means publications named only as landing spots for (a), and on-site, single-profile or audit-only work for (d). ### Digital PR: Ask for Coverage You Can Open Ask for links to recent coverage, and whether each piece was earned or paid for. Foundation pitches original data, Reboot Online runs Freedom of Information campaigns, Crackle PR writes a media relations plan and Zen Media sells monthly placements. ### Placements: Ask Which Ones Were Paid For Some placements are commercial by design: Siege Media’s affiliate placements earn commission. Get the target sites in writing and ask which are earned and which bought. A G2 profile is also a source of buyer-intent alerts your sales team can act on through [review-site intent scoring](https://frontal.so/plays/review-site-intent-scoring). ### Community: Ask Whose Accounts Do the Posting In an [r/SEO thread on Reddit](https://www.reddit.com/r/SEO/comments/1tfu6tz/phenomenal_reddit_is_starting_to_shut_down_the/), a moderator shared an AI-visibility vendor’s note that its two subreddits stopped showing in feeds, unexplained. The top reply found it odd that AI leans on Reddit when “so much of it is garbage chat.” From that one anecdote come three questions: whose accounts post, whether posts disclose the client and whether the firm runs its own subreddits. LinkedIn posts naming your company are a separate count, one that [brand mentions monitoring](https://frontal.so/plays/brand-mentions-monitoring) watches and routes to Slack. ### Entity Work: Ask Which Profiles Get Corrected Arobis AI names Wikidata, Crunchbase and G2, Discovered Labs contests inaccurate claims, and Crackle PR keeps public company facts accurate. Ask which profiles each firm will touch, and for a before-and-after. Entity work corrects your public records, as [lead enrichment services](https://frontal.so/blog/best-lead-enrichment-services) correct records inside a CRM. ## How to Check a Share-of-Voice Number A share figure is only as good as the prompts, runs and rivals behind it. ### What the GEO Paper Measured, and What It Didn’t [The paper that named GEO](https://arxiv.org/abs/2311.09735), by Pranjal Aggarwal and co-authors at KDD 2024, found across 10,000 queries that GEO “can boost visibility by up to 40%.” That’s a relative gain in its own measure: the share of an answer’s words in sentences that cite a source, weighted toward the top. Cite Sources, which adds citations to credible sources inside your own page, gained 30% to 40%, as did quotations and statistics. Keyword stuffing gave “little to no improvement.” With every source optimized at once, fifth-ranked pages gained 115.1% from added citations, while top-ranked pages lost 30.3% on average. Its engine was simulated, with GPT-3.5 answers sampled five times per query, plus a 200-query Perplexity test. It changed page text only, not backlinks, so it says nothing about press, placements or Reddit. ### Where AI Search Finds Its Sources The GEO paper edited a brand’s own page. Yet in many cases, a brand’s own sites make up only 5 to 10 percent of the sources AI search references, by [McKinsey’s analysis](https://www.mckinsey.com/capabilities/growth-marketing-and-sales/our-insights/new-front-door-to-the-internet-winning-in-the-age-of-ai-search) of Google AI Overviews. That off-site ground is where these agencies work. McKinsey also found that just 16 percent of brands systematically track AI search performance, in a survey of about 30 Fortune 500 consumer-brand CMOs. Both are consumer-brand findings. ### Ask What the Percentage Is a Percentage Of In a Reddit [thread on r/PublicRelations](https://www.reddit.com/r/PublicRelations/comments/1u7fp5d/share_of_voice_as_a_pr_metric_sucks_runny_eggs/) about PR share of voice rather than AI answers, a poster’s brand had 20 of 100 mentions, or 20%. A week later it had 30, but a merger lifted the sector total to 500, so its share fell to 6%. ![Two grids of squares. In the first week, 20 of 100 squares are lit, a 20% share. A week later, 30 of 500 are lit, a 6% share, because a merger lifted the total faster than the brand's mentions grew.](https://frontal.so/images/blog/best-generative-engine-optimization-agencies/two-grids-of-squares-in-the-first-week-2-page.webp) *The brand’s count rose, but the total rose faster.* The top reply blamed “bad SOV measurement and implementation, not SOV itself.” So ask for the prompt list, the branded and unbranded split, the rivals, runs per prompt and raw counts. A before-and-after can’t show the firm caused a move, so ask what else changed. ## What Top GEO Agencies Charge in Dollars, Euros and Pounds $2,500 a month buys Arobis AI’s Foundation tier, the lowest monthly fee quoted in dollars. | Agency | Published price | Minimum term | | --- | --- | --- | | Arobis AI | Foundation $2,500 a month; AI Search Growth $5,000 a month, with Wikidata work | 3 months, then 30 days’ notice | | Reboot Online | GEO from £2,500 a month; AiPR from £8,500, in pounds | Not stated | | Agenzy | From €5,000 a month ex VAT, with 50 tracked prompts | Six months | | Discovered Labs | Establish €6,995 a month on six months, €1,000 more month to month | Six months at that rate; otherwise month to month, 30 days’ notice | | Siege Media | Reddit work only, $5,000 to $15,000 a month | Six months | | Crackle PR | $12,000 a month PR floor, GEO scoped on top | Six months, then month to month | | Zen Media | From $5,000 a month, in its October 2025 release | 12 months for that rate | Foundation, Avenue Z and Frontal publish no rate. Crackle PR says its floor “is not a promise that all services are included.” A GEO fee buys placements, pages and tracked prompts rather than leads, so price [B2B lead generation companies](https://frontal.so/blog/best-b2b-lead-generation-companies) separately, on cost per closed deal. ## Four Steps Before You Sign a GEO Retainer Four steps turn a shortlist into a scope you can hold a firm to. ### Step 1: Map the Sites AI Answers Cite Run your buyers’ questions in the assistants they use, record every cited domain and tag each as PR, placement, community or entity. Build the map like [an outbound list](https://frontal.so/blog/outbound-list), from several kinds of source, then keep the domains that recur. ### Step 2: Write the Prompt Set Yourself Take prompt wording from sales-call notes and support tickets, keep branded and unbranded prompts apart, and name the rivals to track. Then ask an assistant for variants buyers might type, much as you’d use [Claude for buyer research](https://frontal.so/blog/how-to-use-claude-for-lead-generation). ### Step 3: Record How New Leads Found You Add a “how did you hear about us?” field to your forms, and give AI-referred visits their own analytics channel. Store the answer in a CRM field, a setup [CRM consulting services](https://frontal.so/blog/best-crm-consulting-services) can handle, so AI-sourced leads get counted. ### Step 4: Start on the Shortest Term Offered Arobis AI credits its $399 audit to month one if a retainer starts within 60 days, then asks for three months. Discovered Labs runs month to month on 30 days’ notice at €1,000 more, while Agenzy, Crackle PR and Siege Media’s Reddit service ask for six months. Agree a review point before you sign. ## Frequently Asked Questions ### Who are the best generative engine optimization agencies in 2026? Our list of the best GEO agencies for 2026 starts with Discovered Labs, whose share-of-voice figures carry a margin of error. Agenzy places tracking-led mentions, Arobis AI fixes Wikidata entries, Siege Media runs disclosed Reddit accounts and Foundation reports citation share. Frontal, our own firm, writes GEO articles. Avenue Z aims PR at cited listicles, Reboot Online runs data-led PR, Crackle PR keeps company facts accurate and Zen Media sells monthly placements. ### Is a newer GEO agency better than an SEO firm that added GEO? Not on citation work alone: Discovered Labs, Agenzy and Arobis AI score 4, 3 and 2.5, and Siege Media and Foundation 3 each. The gap is measurement, since all three name a tracker and state a prompt count or statistical rule. Foundation names none, and Siege Media one only in a case. ### How do GEO agencies measure share of voice? Most run buyer prompts through several engines and count the answers naming you. Agenzy tracks 50 prompts daily in Peec AI, Arobis AI runs ZeroRank nightly, and Discovered Labs adds a 95% credible interval. ### How much do GEO agencies charge? Among the top GEO agencies that price GEO work, Arobis AI starts at $2,500 a month, Agenzy at €5,000 ex VAT and Discovered Labs at €6,995 on six months. Reboot Online quotes GEO from £2,500 a month. Foundation, Avenue Z and Frontal show no rate. ### How long before a GEO agency shows results? The firms’ own best cases run from one reading seven days after a wire release, at Zen Media, to a 12-month program at Foundation. Agenzy’s and Arobis AI’s cover about 90 days. For named buyers sooner, outbound from a [GTM engineering agency](https://frontal.so/blog/gtm-engineering-agency) reaches them directly. ### Does Frontal sell GEO, and what does it cover? Yes, through its content engineering service: SEO and GEO articles, FAQ pages, and comparison and use-case pages that answer the questions buyers type into Google and ChatGPT. It works from your team’s interviews and calls, your team approves each piece, and reviews cover rankings, target-account engagement and inbound conversations. It doesn’t sell PR, placements, community or entity work. ## Match the Best GEO Agencies to Your Citation Gap For Reddit and forums, the generative engine optimization agencies to call are Discovered Labs, Agenzy, Siege Media and Foundation. For facts that disagree across profiles, try Arobis AI, Discovered Labs or Crackle PR. If the gap is articles answering buyers’ questions, our content engineering service writes them from your experts’ interviews. Most clients start with one of [Frontal’s services](https://frontal.so/services), and content engineering is the one for GEO. [Book an intro call](https://book.frontal.so/) About the author Alex Vacca Founder, Frontal Alex founded Frontal, where GTM engineering, paid media and content work alongside B2B sales teams. He writes about choosing a go-to-market approach, connecting channels and evaluating agency partners. 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 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) GTM Nov 9, 2026 ### [What Are the Best Clay Automation Agencies? A Complete Guide](https://frontal.so/blog/best-clay-automation-agencies) Explore our full breakdown of the best Clay automation agencies, including what they offer, who they serve, and how to choose the right one. **[Kenny Damian](https://www.linkedin.com/in/kenny-damian-90aba221a/)** Head of GTM [Read article](https://frontal.so/blog/best-clay-automation-agencies)