Best Generative Engine Optimization (GEO) Agencies in 2026

Somebody on your leadership team asked ChatGPT for the best vendors in your category. You weren't in the answer. Your competitor was.

Now you've been told "we need to show up in AI," and you're building a shortlist of GEO agencies.

Here's the problem. Sometime in 2025, half the SEO agencies in America added "GEO" to their homepage. Same team. Same deliverables. New H1. Some of them are genuinely good at this. Some are selling you a dashboard and a prayer.

I've spent 20+ years building companies and doing marketing. We do this work at Aiken House, so I have strong opinions about what real GEO looks like. This guide is the buyer-side version. How I'd evaluate an agency. The questions I'd ask on the sales call. The red flags. What it should cost. And the agencies I'd actually put on a shortlist, depending on what kind of company you run.

What a GEO Agency Actually Does (and How It Differs from SEO)

SEO earns a ranking. GEO earns a mention.

When someone asks ChatGPT, Perplexity, Gemini, Claude or Google's AI Overviews a question, the engine pulls from a pile of sources, writes one answer, and cites a handful of them. Maybe three. Maybe eight. A GEO agency's job is to make your brand one of those sources and to make sure the answer describes you correctly.

In practice, real GEO work covers five things:

• Prompt research. Figuring out what your buyers actually ask. Not "CRM software." More like "which CRM works best for a 40-person construction company that already uses QuickBooks?" These prompts are long, specific and conversational.
• Content built to be extracted. Clear definitions, direct answers in the first two sentences, comparison pages, original data. A Princeton-led GEO study found that adding statistics, quotations and citations to content lifted visibility in generative answers by up to 40%.
• Off-site presence. AI engines summarize consensus. If review sites, Reddit threads, YouTube videos and industry lists all say the same thing about you, the answer will too.
• Technical access. AI crawlers that can reach your pages, structured data, and consistent facts about your company everywhere it appears.
• Measurement. Tracking which prompts mention you, which pages get cited, and whether AI referral traffic turns into pipeline.

Good GEO sits on top of good SEO. It doesn't replace it. If your site is a technical mess and your content says nothing original, no agency is going to talk its way into a ChatGPT answer for you. I made the longer case for why this shift is permanent in GEO Is Not a Trend. It's the New Default for Anyone Who Wants to Be Found Online.

How We Evaluated These Agencies

I didn't give anyone a fake 8.7 out of 10. Agency fit depends on your business, so every agency below gets a "Best for" label instead of a rank. They're grouped by who they serve best, not ordered by who's "better."

Here's what I looked at:

• Citation proof. Can they point to specific AI answers that cite client pages they built? Not a score. An actual answer.
• Content production. Do they have writers and editors who can produce original, expert content? GEO without a content team is just reporting.
• Measurement. Do they track citations across multiple engines, share the raw prompt data, and connect it to traffic or pipeline?
• Pricing transparency. Will they tell you what you're paying for and how the engagement is structured before the third call?
• No guaranteed placements. Anyone who promises a spot in ChatGPT is either lying or planning to game it. Both end badly.

I based this on each agency's public work, published research, case studies and how they describe their own process. Verify everything on a call. This category is moving fast.

Full disclosure: Aiken House does GEO work too. We left ourselves off this list on purpose. You came here for a candid shortlist, not a sales page.

The Best GEO Agencies in 2026

Ten agencies I'd consider, each with what they do well, what to watch for, and how they price when that's public.

iPullRank

Best for: Enterprise brands with complex sites

What they do well

Founder Mike King coined "Relevance Engineering," a framework that blends information retrieval, content strategy, UX and digital PR. The team published The AI Search Manual and built tools like Qforia for mapping the hidden queries AI engines fan out to. This is the most technically rigorous shop on the list.

Watch-outs

Priced and staffed for enterprise. If you're a 30-person startup, this isn't your agency yet.

Pricing model

Their flagship AI Search Strategy Program is a six-month engagement, with a top tier publicly listed at $150K.

Graphite

Best for: Venture-backed tech and consumer startups

What they do well

Research-driven growth agency led by CEO Ethan Smith, with an in-house AI research team studying what actually gets cited. Strong on the long tail: help center content, Reddit and YouTube presence, and question-shaped pages. Webflow is a public case study.

Watch-outs

Their playbook often leans on your product and help center content, so you'll need product team time, not just marketing budget.

Pricing model

Custom retainer. Not published.

Directive

Best for: B2B SaaS that needs GEO tied to pipeline

What they do well

Works exclusively with B2B and SaaS companies and reports everything back to pipeline and revenue through its Customer Generation approach. Has a dedicated GEO practice alongside technical SEO and content.

Watch-outs

Directive is a full-service performance shop. Make sure GEO is a real workstream with named owners, not a line item inside a paid media pitch.

Pricing model

Custom retainer, typically bundled with SEO or paid programs.

Go Fish Digital

Best for: Ecommerce and retail brands

What they do well

Twenty years in search, with a heavy ecommerce practice and its own GEO tooling, including Barracuda, an AI Overview Analyzer and a Semantic Content Audit. Combines GEO with digital PR and paid, which matters when product recommendations in AI answers are on the line.

Watch-outs

Big service menu. Ask who owns GEO for your account day to day and how much of their time you get.

Pricing model

Custom proposal.

NoGood

Best for: Consumer and DTC scaleups

What they do well

New York growth agency that runs cross-functional "growth squads" and was early to market with answer engine optimization. Uses Goodie, an AEO platform closely tied to the agency, for monitoring across ChatGPT, Gemini, Claude and Perplexity. Has public consumer case studies, including SteelSeries.

Watch-outs

When the agency and the measurement tool are this close, ask for the raw prompt data and a second source of truth so you can verify the results yourself.

Pricing model

Custom retainer.

First Page Sage

Best for: B2B firms that sell expertise

What they do well

One of the first agencies to name and sell GEO, with a published framework dating back to 2023. Built around thought leadership content written for technical and executive buyers. A good fit for professional services and complex B2B, where the expert voice is the product.

Watch-outs

Premium pricing and longer commitments. Ask about the minimum term on the first call.

Pricing model

Retainer, quoted by scope.

Siege Media

Best for: Brands that win on content and digital PR

What they do well

Long-time content marketing agency with serious design and digital PR muscle. That combination matters for GEO, because earned mentions on other sites shape what AI engines say about you as much as your own pages do.

Watch-outs

Built for bigger content programs. If you only need an audit and a few fixes, you're the wrong size client.

Pricing model

Custom retainer.

Omniscient Digital

Best for: Product-led B2B SaaS

What they do well

Builds organic growth engines for product-led SaaS, mixing SEO, GEO, programmatic pages and content built from a company's own data and product assets. Strong at turning product knowledge into pages AI engines can quote.

Watch-outs

SaaS lens. If you're local, ecommerce or services, look elsewhere.

Pricing model

Custom retainer.

Minuttia

Best for: Mid-market B2B SaaS wanting one plan for Google and AI

What they do well

B2B SaaS content and search agency that treats AI search as an extension of SEO rather than a separate product. Credit where it's due: they wrote one of the only genuinely editorial GEO agency guides out there, which tells you they think about this from the buyer's side.

Watch-outs

Niche focus on SaaS. Great if that's you. Limiting if it isn't.

Pricing model

Custom retainer.

Animalz

Best for: B2B brands where writing quality is the moat

What they do well

One of the best-known B2B SaaS content agencies, now with answer engine optimization built into its core SEO and content program instead of sold as a bolt-on. If you need authoritative long-form content that AI engines treat as a reference, they're strong.

Watch-outs

Content-first. If your site has technical problems blocking AI crawlers, pair them with a technical partner.

Pricing model

Custom retainer.

Comparison Table

GEO vs AEO vs AI SEO: Do the Labels Matter?

Mostly, no.

Answer engine optimization (AEO) grew out of the featured snippet and voice search era. Generative engine optimization (GEO) came from academic research in 2023. "AI SEO" and "LLM SEO" are marketing labels that sound good on a services page. In 2026, the people doing the best work use them interchangeably.

What matters is the outcome. Are you being cited? Is the answer accurate? Is it sending buyers who convert? An agency that obsesses over which acronym is "correct" is usually avoiding that conversation.

7 Questions to Ask Before You Sign

Bring these to every sales call. The good agencies will love them. The fakers will get vague.

1. "Show me a specific AI answer that cites a client page you wrote." Live, on screen, in ChatGPT or Perplexity. Not a screenshot from six months ago.
2. "Which prompts will you track, and who picks them?" If they only track prompts that include your brand name, you'll look great on paper and invisible in real life. Buyers don't search for you by name. They search for the problem.
3. "What tool do you measure with, and can I see the raw data?" You want the prompt list, the engines, the dates and the actual responses. Not just a trend line.
4. "Who writes the content, and how do you get expertise out of my team?" Original insight is what gets cited. Ask what a subject-matter interview looks like.
5. "What off-site work is included?" Reviews, PR, Reddit, YouTube and industry lists all shape AI answers. If the plan is 100% on your own blog, it's half a plan.
6. "What should I expect at month three versus month nine?" Honest agencies will tell you early wins are usually on long-tail prompts and that competitive head terms take longer.
7. "What do I own if we part ways?" Content, tracking setup, prompt lists and dashboards should leave with you.

Red Flags

Walk away if you see any of these.

• Guaranteed ChatGPT placement. Nobody controls what a model says. Not the agency. Not even the model makers, fully. A guarantee means they're planning to game it, or they're planning to redefine "placement" later.
• Prompt-stuffing and fake consensus. Mass-producing thin pages, seeding Reddit with sock puppets, or planting your brand in dozens of low-quality "best of" lists. It can work for a quarter. Then it stops working and leaves a mess. I wrote about why in You Can Still Game AI Visibility. You Just Cannot Keep the Winnings.
• No content team. If the deliverable is audits and dashboards with no one writing, you're paying for a report card.
• A proprietary "AI score" with no citations behind it. Scores are easy to make go up. Citations are hard.
• A 12-month lock-in before a pilot. A confident agency will let you start with an audit or a 90-day sprint.

What GEO Should Cost

Most GEO agencies don't publish prices, so here's what I see in real proposals. Treat these as rough ranges for a US mid-market company. Enterprise scope runs higher.

Two more things to budget for. First, monitoring software is usually a separate line item, anywhere from under $100 a month for basic tracking to enterprise contracts. We compared the options in Profound Alternatives: The Aiken House AI Visibility Stack for 2026. Second, if you plan to scale content production with AI tooling, check our roundup of AirOps alternatives for AI SEO and GEO content before an agency marks up the same tools. And if your real worry is what AI says about your brand's reputation, not just whether you show up, our breakdown of what reputation management costs covers that budget line too.

One Last Thing

The right GEO agency won't sell you a score. It will show you real answers, real citations and real buyers. Start small, measure against prompts your customers actually ask, and give whoever you hire enough time to do work that lasts.

If you want a second opinion on an agency proposal, or you just want to know what ChatGPT says about you right now, happy to take a look. That conversation is always free at Aiken House.