You run a SaaS. Your prospects ask ChatGPT "best tool for [your category]" and your brand doesn't show up. Your competitors do.
A GEO agency can move the needle, provided it knows the SaaS-specific levers. Here's how they work, what it costs, and how to pick one.
The three levers of a GEO agency for SaaS
1. Comparison and alternative pages
LLMs love recommending in comparisons. "[Competitor A] vs [Competitor B]", "alternatives to [market leader]" are very high-frequency prompts. A serious GEO agency builds these pages with surgical honesty. AI detects bias and penalizes oversold comparisons.
For a starting SaaS: 8-15 comparison and alternative pages targeting direct competitors. For a mature SaaS: 30-50 pages covering the full competitor matrix per use case.
2. Editorial presence on G2, Capterra, Reddit
LLMs heavily cite these platforms. A SaaS with 500 G2 reviews beats a SaaS with 5 reviews for "best [category] tool", even if the latter has a better product.
A serious GEO agency actively manages your review strategy on G2 and Capterra (collection campaigns, review responses, product page optimization), and your editorial presence on Reddit (r/SaaS, r/Entrepreneur, niche-specific subs).
3. Use-case positioning
Generic positioning ("project management tool") doesn't trigger any specific recommendation. Use-case positioning ("the simplest project management tool for freelancers and solopreneurs") triggers recommendations on high-intent purchase prompts.
A SaaS GEO agency works on 5-12 use cases, each materialized by a dedicated landing page, a set of tracked prompts and an authority strategy (reviews, third-party articles, Reddit presence).
How much it costs
One-shot SaaS GEO audit: $2,800 to $5,500 depending on scope. Includes: citation share assessment on 40-80 prompts, competitive benchmark on 5-10 direct competitors, analysis of your G2/Capterra presence, 90-day prioritized action plan.
Monthly retainer: $2,200 to $6,500 depending on scope.
- Low end ($2,200-$3,800): monitoring of 40-60 prompts on the main AI engines, bi-weekly report, 5-10 content recommendations per month.
- High end ($4,500-$6,500): monitoring of 80-150 prompts on the major AI engines, production of 2-4 comparison/alternative pages per month, active G2/Capterra review management, bi-weekly meeting.
The four criteria to evaluate a SaaS GEO agency
- Mastery of SaaS-specific fan-out queries. The agency should be able to show you 10 examples of fan-out queries ChatGPT runs in your niche.
- Ability to produce honest comparisons. Ask to see a comparison they produced for another SaaS. If it's promotional, walk away.
- Active G2/Capterra review strategy. The agency must have a workflow to collect, respond to and capitalize on reviews.
- Case studies with comparable SaaS. Same niches, same sizes, dated numbers.
Measuring ROI
Three main KPIs:
- Citation share on 30-50 business-critical prompts
- LLM referrer traffic in Google Analytics (filter source/medium ChatGPT, Perplexity)
- Signups attributed to the LLM channel
A ChatGPT recommendation for "best [category] for [audience]" placing your brand first typically values at 30-80 monthly signups depending on niche.
Which GEO agencies work with SaaS?
No agency is both GEO-only and SaaS-only today. The serious options combine a GEO offer with SaaS experience, even when the two are not yet one product. We compare five of them on the same grid.
How we rank them
Each agency is scored on the same five criteria, from 0 to 3, based on what it publishes itself. AI visibility measurement counts double, for a total out of 18: it is the only criterion that lets you check the work once the contract is signed. The ranking follows the total. Anything not published scores 0. On a tie, the older agency comes first.
| Criterion | What each score means |
|---|---|
| AI visibility measurement | 0: none published. 1: one-off or self-reported audit. 2: regular tracking with a tool. 3: daily tracking per question and per AI engine, compared before and after |
| Topic coverage | 0: off topic. 1: mentioned in the offer. 2: one dedicated service. 3: core focus, several dedicated services |
| Published proof | 0: none. 1: references or partial figures. 2: published case studies or awards. 3: case studies with before and after figures |
| Track record and team | 0: less than a year in business. 1: small or recent team. 2: several years, established team. 3: more than ten years or more than 50 people |
| Offer transparency | 0: vague scope. 1: services described, price on quote. 2: scope and commitment in writing. 3: public prices and written terms |
Here, topic coverage scores where GEO and B2B SaaS meet.
| Agency | AI measurement (×2) | Topic | Proof | Track record | Transparency | Total /18 |
|---|---|---|---|---|---|---|
| Eskimoz (France) | 2 (tracking dashboard included in engagements) | 3 (SaaS vertical and five AI services) | 2 (client case studies) | 3 (about 250 consultants) | 1 (prices not public) | 13 |
| NOIISE (France) | 2 (tracking dashboard included in engagements) | 1 (GEO yes, SaaS not explicit) | 2 (award-winning GEO campaign) | 3 (85 consultants) | 1 (prices not public) | 11 |
| Mentionable Agency | 3 (daily tracking per question, per AI engine and per country) | 2 (dedicated GEO and SEO services, no separate SaaS offer) | 1 (figures from its own site, no client case study yet) | 1 (Mentionable team active since 2025, agency opened in 2026) | 1 (services described, price given at the first meeting) | 11 |
| Junto (France) | 1 (declared GEO offer, /agence-geo page) | 3 (dedicated SaaS and GEO pages) | 1 (works for French B2B SaaS, no published case) | 2 (established multi-channel agency) | 1 (prices not public) | 9 |
| Single Grain (US) | 0 (not published) | 3 (B2B SaaS and GEO offers) | 0 (not published) | 1 (size not published) | 1 (price on quote) | 5 |
Mentionable Agency
Mentionable Agency is the SEO and GEO agency run by Mentionable, opened in 2026 on mentionable.ai. It has no separate SaaS offer: it applies its GEO and SEO services (measured GEO audit, SEO audit, GEO content, link building and mentions on the sources AI engines read) to SaaS brands. All the SEO and GEO work is done in-house, through the agency's own editorial and link building workflow, separate from the Mentionable tool and going further than what the tool automates. The tool is the support: it measures visibility in real AI answers, question by question, engine by engine and country by country, shows which sources get cited, and helps decide what to build. For a SaaS, it shows on which "best tool for" prompts the brand shows up, and which competitors get named instead. The work is judged on that same measurement, before and after.
Its limit is track record. No client case study is published yet, its only public proof is mentionable.ai's own search growth, and pricing is given at the first meeting. It suits SaaS teams with an in-house marketer who wants to delegate execution, less a solo founder at pre-seed. The offer is detailed on the GEO agency page, and the entry point is the GEO audit.
Agency or DIY?
DIY is more efficient if you have an in-house SEO available 4-8 hours per week. A tool like Mentionable covers measurement by country and by question, a monthly action plan for your site and, from the Influence offer, outreach to win mentions. Presence starts at €249/month, with a 7-day free trial.
The agency becomes more profitable if you're launching your GEO program with nobody internally to absorb the scope, or if you track more than 80 prompts and the analytical load exceeds one person's capacity.
Finding a SaaS-specialized GEO agency
Mentionable maintains a directory of GEO agencies: a founding circle of GEO agencies, selected on their approach. No commission, no paid placement. Mentionable Agency has its own profile there too.
