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 5 LLMs, bi-weekly report, 5-10 content recommendations per month.
- High end ($4,500-$6,500): monitoring of 80-150 prompts on 7 LLMs, 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.
Agency or DIY?
DIY is more efficient if you have an in-house SEO available 4-8 hours per week and a tracking tool like Mentionable. Cost: $85-$325/month in tooling + internal time.
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 hand-picked directory of GEO agencies and consultants. Several listed agencies are SaaS-specialized, with dated case studies on comparable B2B tools. Every agency has been met by our team on its methodology, tracking stack and client results. No commission, no paid placement.
