Want ChatGPT to Recommend You? Six B2B GEO Agencies Worth Knowing

A while ago, a friend running B2B SaaS wanted to talk ad spend. He mentioned a number, and it stopped me cold.

94% of buyers use large language models during the purchase process. Researching vendors, comparing solutions, drafting internal business cases — all of it goes through AI.

Think about what that means.

It means your customer may have gone three rounds with ChatGPT before ever knocking on your sales team's door. Whoever it recommends makes the shortlist. And if it didn't mention you?

You're out — without even a chance to quote.

The stinger comes next. One study says traffic from AI search converts at 14.2%. Traditional Google search? 2.8%.

A 5x gap.

What does 5x mean in practice? With the same thousand visitors, they close 142 deals; you close 28. This isn't an optimization problem anymore — it's a turf problem.

Should you still do Google? Yes. It's still a good channel. But a second battlefield is opening up — and the pickings are richer.

This new battlefield has a name: GEO.

What Is GEO?

GEO — Generative Engine Optimization. Stripped down: finding ways to get ChatGPT, Perplexity, and Google's AI summaries to cite and recommend you when they answer questions.

Traditional SEO performs for the algorithm, fighting for the top ten spots on a search results page. GEO performs for large language models, fighting for a single name inside that little block of AI answer.

Fewer spots, fiercer competition, higher value.

So the question becomes: do you do this in-house, or hire an agency?

My take: most companies should hire. Because the underlying craft of GEO is still the SEO skill set — building topical authority, accumulating high-quality brand mentions, producing expert-level content. Specialist teams have done this work for a decade; learning it from zero means tuition you can't afford.

But agencies are everywhere. How do you choose? Let me walk you through six shops that take B2B GEO seriously, one by one.

Up front: this list is in no particular order. Which one fits depends on your stage, your resources, and what you want. Also, every shop here passed several filters — genuinely offering GEO/AEO/AI SEO services, a predominantly B2B client base, demonstrable AI search results (not SEO data relabeled), and ongoing experimentation.

And one blunt caveat. How fast is GEO changing? Even researchers who study LLMs can't fully explain how they decide internally. So anyone thumping their chest about understanding it one hundred percent — is overpromising. A good agency will admit it's still figuring things out too.

Honesty, by itself, is a selection criterion.

Agency One: Grizzle

A B2B organic growth agency that has been steeped in B2B SEO since 2016; GEO is a new practice grown out of the old craft.

Their approach runs on multiple legs: content aligned to buyer intent while simultaneously serving LLMs, traditional search, and the platforms your customers actually hang out on. Every asset produced reinforces the authority signals LLMs read when judging "who deserves citation"; layered on top, compounding distribution and digital PR accumulate brand mentions; plus a dedicated R&D operation continuously running GEO experiments whose results feed straight back into strategy.

How fast are the results? They produced a guide on video marketing agencies — four days to the number-one search spot, plus placement in high-intent AI Overviews and ChatGPT answers.

Their client roster includes Pipedrive, Semrush, Tide, and Tipalti.

In one line: veteran SEO craft plus an experimental streak — for companies building the content engine and AI visibility together.

Agency Two: Siege Media

The full-suite player. More than a decade of content for growth-stage brands, with data journalism at its core — produce the original data yourself, and everyone else has to cite you.

They have two in-house tools. BlueprintIQ benchmarks your content against live results from ChatGPT, Gemini, and Perplexity to see where you fall short on topics and entities. DataFlywheel refreshes 20 to 60 pieces of existing content every quarter to keep it fresh.

What's first-party insight worth? Their clients' traffic value has risen as much as 83%.

Founder Ross Hudgens has also written a book on GEO, publishing in November 2026. Writing a book for a brand-new discipline — that level of investment tells you where they stand.

Clients include HubSpot, Zapier, Asana, and Zoom. For companies with healthy budgets wanting the full package — content, PR, technical SEO, UX, end to end.

Agency Three: Omniscient Digital

The founders came out of HubSpot, Shopify, and Workato. Their playbook is methodical, built on four principles: content rooted in genuine expertise and original research; building author and brand entity authority so LLMs recognize and trust you; "citation engineering" through PR, thought-leadership content, and structured data; and technically ensuring content loads fast, stays crawlable, and carries proper semantic markup.

They also partner with Peec AI, so every project includes continuous monitoring of LLM mentions and visibility.

Clients include Hotjar, Smartling, 360Learning, and Loom. For software companies that want AI search visibility wired directly into the B2B pipeline.

Agency Four: Foundation

The most distinctive thing about this shop is founder Ross Simmonds's conviction: distribution first. Content only creates value once it reaches the right places. Publish and wait for traffic? That's the same as not doing it at all.

Their process starts with a deep audit: competitor audit, AI platform analysis, stakeholder interviews. Then content deliberately structured the way AI engines understand information, with weekly data reviews and strategy that evolves with the algorithms.

Special mention for their Reddit obsession. Their own research found: across key B2B SaaS prompts, Reddit accounts for 21% of AI citations. One in five. So they run a full playbook for building brand presence on Reddit.

Clients include Canva, Bitly, Webex, and Mailchimp. For companies that believe brutal distribution beats beautiful content.

Agency Five: Spicy Margarita

A boutique that deliberately stays small: never more than 10 clients at a time, every account watched by a senior operator.

They have an "AEO Manifesto" whose philosophy fits in one line: visibility that doesn't drive sales results is worthless. Every strategy, every piece of content, every link building exists to push buyers from awareness to close.

Most unusual is their brand control — they watch how the various AI tools describe your company, and when something's wrong, they correct it. Imagine AI slapping the wrong label on you during a customer's research phase. How unjust would that be?

Clients include Rillion, Givebutter, Jabra, and Piktochart. For teams that want a veteran operator working close.

Agency Six: Obility

Focused on complex verticals — SaaS, DevOps, cybersecurity, martech, healthtech — and fluent in long sales cycles.

Their approach is full-coverage: monitor your and your competitors' presence across the major LLMs, AI Overviews, and Reddit to map the landscape first; then build brand mentions and run organic Reddit strategy. Competitors showing up in AI more than you? Turn the gap into the opportunity.

Clients include Boomi, Fastly, Autodesk, and Hitachi Vantara. For deeply technical companies with long procurement chains.

How to Choose: Ask Yourself Five Questions

Read about all six and feeling dizzier? Normal. Don't rush to book calls — answer five questions first.

One: do you lack GEO or SEO? GEO builds on an existing foundation. Thin content, weak domain authority, no topical coverage built yet? Do honest SEO first. Be honest with yourself.

Two: do you want brand exposure or pipeline? Some agencies chase citation counts and share of voice inside AI answers — good for brand, hard to tie to revenue. Others can wire it through to MQLs, demos, and closed deals. Decide which you want, then press every agency on how they measure it.

Three: is the agency restless enough? The players genuinely advancing in this space run tests weekly and update their playbook as platforms change citation logic. Ask what they tested lately and what failed. All confidence and no curiosity — red flag.

Four: is the timeline realistic? The brands showing up reliably in AI answers in 2026 started building authority long before this mattered. GEO timelines, unlike SEO, are unpredictable and heavily dependent on what you've already built. A good agency will give you an honest starting-point assessment.

Five: do they understand B2B buying? B2B buyers use AI to research, compare, and write business cases over weeks or even months. Teams that get this rhythm build their playbook around the questions buyers actually ask. Make them show you case studies from different stages of the buying journey.

Three Common Doubts

What's the difference between GEO, AEO, and AI SEO?

Theoretically you can split hairs finely. In practice, most companies use the three terms as synonyms: optimizing for AI-generated answers. GEO and AEO are most common; AI SEO is broader. Don't wrestle over terminology — look at whether there's a real methodology behind the signboard.

How long until results?

With a strong existing foundation, targeted optimization can get you into AI answers within weeks. Starting from zero, budget three to six months. Authority building compounds — the momentum accelerates over time.

What's the difference between a GEO agency and an SEO agency?

One handles traditional search rankings and organic traffic; the other handles appearing inside AI-generated answers — where more and more B2B research happens. But by now, the strongest players do both: treating GEO as a new layer built on the SEO foundation, not starting over from scratch.

Finally

Back to the friend from the opening.

He didn't rush to pick an agency. He went back and audited his website content first — and discovered that even his most core solution didn't have a single piece of in-depth content worth showing. Even if AI wanted to recommend him, it couldn't find a reason to.

That's the most down-to-earth truth about GEO: it doesn't reward tricks. It rewards accumulation.

Whether your authority in the human world is enough — AI will eventually do the math for you.

Here's to starting to accumulate early.