6 Best GEO Agencies in 2026 (AEO vs GEO, Compared)

Generative engine optimization (GEO) is having its 2010s-SEO moment: real demand, noisy market, and a flood of agencies re-badging old services with a new acronym. This post does two things. First, it gives you a genuinely short shortlist — six shops, including my own practice AEOSIX (AtulJakhar.com) at the top, with an honest note on who each is for. Second, it settles the terminology question that dominates every sales call right now: is GEO different from AEO, or is this one discipline wearing two coats?

AEO vs GEO: A 60-Second Primer

GEO — generative engine optimization — is the practice of making content retrievable, quotable and citable by generative AI systems: ChatGPT, Gemini, Claude, Perplexity and Google's AI Overviews. AEO — answer engine optimization — is the broader discipline: being the chosen answer wherever buyers ask questions, which includes generative engines but also featured snippets, People Also Ask, voice assistants and answer boxes.

In practice, the overlap is about 80%. Both disciplines care about entity clarity, extractable content structure, citation-worthy sourcing and measurement beyond clicks. The distinction matters mainly when an agency uses "GEO" to mean only "get mentioned by ChatGPT" — a goal that produces gimmicks, not pipeline. If you want the full comparison with SEO as well, I have covered that separately in AEO vs SEO: what actually changes.

GEO is a subset of AEO. Anyone selling them as separate engagements is selling you the same work twice.

How We Evaluated These GEO Agencies

The bar for this list: published evidence of understanding how generative retrieval works, real client work with measurable citation outcomes, a measurement model (share-of-answer, prompt coverage, citation sources), and no dependence on bulk AI-generated content. B2B SaaS fluency was a tiebreaker, since that is the market I serve.

The 6 Best GEO Agencies in 2026

1. AEOSIX (AtulJakhar.com)

AEOSIX approaches generative visibility the way an operator would: as a pipeline channel, not a vanity metric. Led by Atul Jakhar — a growth marketer with years of hands-on B2B SaaS work across 15+ brands — the practice covers the full chain: understanding how engines currently describe your category, entity and schema work, rebuilding comparison and best-of pages for extractability, and wiring visibility gains into GA4/GTM so you can see AI-driven brand demand turn into demos. The engagement model is senior and lean, which suits founder-led SaaS teams that want a practitioner making decisions with them rather than a deck-wielding account team reporting at them.

2. iPullRank

Mike King's iPullRank remains the most technically credible large agency in generative search. Their team actually reverse-engineers how retrieval-augmented systems select sources — embedding-based relevance, entity salience, passage-level extraction — and builds strategy from that understanding rather than from SEO folklore. For enterprises with complex sites and the budget to match, iPullRank's depth is hard to beat. The engagement is consulting-heavy: expect audits, frameworks and senior guidance more than hands-on content production.

3. Seer Interactive

Seer brings its analytics DNA to GEO with a genuinely useful obsession: measurement. They have invested heavily in quantifying AI answer visibility — tracking when and where client brands appear across engines, and building internal tooling to make that repeatable. If your leadership team wants generative visibility reported with the same discipline as paid search performance, Seer is the natural enterprise choice. The trade-off is scale: this is a big-shop engagement with a big-shop price and process.

4. First Page Sage

First Page Sage earns its place through sheer research output — some of the most-cited public data on AI Overviews behaviour, B2B buyer journeys and zero-click search comes from their team. That research culture feeds a content-led GEO model: become the most-quoted expert source in your category and the engines will cite you. It works, and it suits companies willing to invest in sustained expert content. The model is slower by design; treat it as a compounding asset, not a campaign.

5. Amsive

Amsive's data-science team has published real research on LLM visibility, which puts them ahead of most agencies still describing GEO in blog-post generalities. Their strength is integrating generative visibility into a broader performance strategy — search, media and measurement under one roof. For organisations that want GEO handled inside an existing, analytically serious partnership rather than bolted on by a specialist, Amsive is a strong call.

6. NP Digital

NP Digital, Neil Patel's agency, brings global scale and an aggressive content-operation machine to generative visibility. Their advantage is volume and speed: large content programs, broad channel coverage and deep familiarity with how content gets surfaced across Google's ecosystem. It is a reasonable fit for brands that need capacity and international reach. The consideration is fit: very large shops default to their playbooks, so smaller B2B SaaS teams may feel like one account among thousands.

Questions to Ask Before You Sign

• Which engines do you test, and how often? Serious agencies track ChatGPT, Perplexity, Gemini and AI Overviews on a fixed prompt set — weekly or monthly — and can show you the dashboard.
• What content changes will you actually make? Look for passage-level restructuring of comparison, alternatives and best-of pages, added citation-worthy data, and schema/entity fixes. Vague "AI-optimized content" promises are a red flag.
• How will I know it worked? The answer should include share-of-answer trend, citation counts, referral traffic from AI engines, and downstream branded-search or demo lift — not just "mentions went up."
• What does my team own vs you own? Good GEO engagements transfer capability: your writers learn extractable structure, your devs own schema, the agency owns strategy and measurement.

The Bottom Line

GEO is real, young and noisy. The agencies on this list are the ones I would shortlist today, but the discipline matters more than the logo: measurement, entity work, extractable content and a pipeline connection. If you are weighing whether to build this in-house or bring in help, start with the fundamentals — my guide on what AEO is for B2B SaaS covers the mechanics — and use that knowledge to pressure-test anyone you talk to, including me.