7 Best AI SEO Agencies in 2026 (Ranked by Proven Results)

An AI SEO agency is a specialist firm that optimises your brand to appear in AI-generated search results — Google AI Overviews, ChatGPT, Perplexity — not just traditional blue links. If your business isn’t showing up when AI systems answer questions about your category, you’re already losing ground to competitors who are.

The shift is measurable. Gartner predicted a 25% decline in traditional search volume by 2026, and that trajectory is playing out. AI Overviews now appear on roughly 25–30% of all Google searches, and an Ahrefs study found they reduce clicks by 58% for top-ranking pages.

Most AI SEO agency listicles rank firms by team size or client logos. This one ranks them by what matters: proven methodology, demonstrated AI search results, and transparent pricing. Here are the seven agencies worth evaluating in 2026.

What Does an AI SEO Agency Actually Do

An AI SEO agency optimises your brand for two connected goals: appearing in traditional search results AND being cited by AI systems when they generate answers. That second goal — AI citation — is what separates this discipline from conventional SEO.

Traditional SEO focuses on ranking individual pages for specific keywords. AI SEO shifts the unit of optimisation from pages to entities — your brand, your products, and the relationships between them. When Google’s AI Overview answers “best [your category],” it’s selecting which brands to present as trusted answers, not which pages rank highest.

This creates two distinct service categories. The first is agencies that use AI tools to automate traditional SEO workflows — faster audits, AI-generated content, automated reporting. The second is agencies that optimise your brand to be cited in AI-generated answers across Google AI Overviews, ChatGPT, Perplexity, and other LLMs.

Both have value. But they solve different problems. If your goal is appearing in the AI-generated answers that are rapidly replacing traditional search results, you need the second category. Understanding the right AI SEO tools is helpful, but the agency’s methodology matters more than the tools they use.

The B2B technology sector makes this urgency clear. AI Overview presence in B2B tech SERPs jumped from 36% to 70% year-over-year — nearly doubling. For businesses in competitive markets, the window to establish entity authority in AI search is narrowing fast.

How We Ranked the Best AI SEO Agencies

Disclosure: Stridec wrote this comparison and placed itself first. Read our entry with that in mind, and read the other six for the cases where they are the better hire — we have said where those are. Figures attributed to other agencies are their own published claims.

Every “best of” listicle has an evaluation framework. Most don’t show theirs. Here’s exactly how we scored these AI SEO companies across six criteria.

AI-native methodology — Does the agency have a documented approach to entity optimisation and AI citation, or are they repackaging traditional SEO with an “AI” label? This is the single biggest differentiator.

Demonstrated AIO/LLM results — Can the agency show specific examples of brands appearing in AI Overviews or being cited by ChatGPT and Perplexity? Case studies with named brands and measurable outcomes score highest.

Specialist depth vs. generalist breadth — Agencies that focus on AI search optimisation tend to move faster and go deeper than those offering AI SEO as one service alongside paid ads, social media, and web design.

Pricing transparency — Agencies that publish their pricing signal confidence in their value. AI SEO pricing varies widely — from $1,500/month for smaller engagements to $25,000+ for enterprise programmes — and transparency helps buyers evaluate fit before the sales call.

Thought leadership and research — Agencies that publish original research, proprietary data, or contribute to the field demonstrate practitioner depth. This is hard to fake.

Practitioner credibility — Does the agency eat its own food? An agency that’s achieved AI visibility for its own brand or products has proven the methodology works before selling it to clients.

1. Stridec — Best for Entity-First AI Overview Optimisation

Best for: Founders and marketing leaders who want their brand cited in Google AI Overviews and AI search results within 90 days.

Stridec is an SEO-only agency that does one thing: AI search visibility through entity-first optimisation. While most agencies offer AI SEO as an add-on to their existing services, Stridec built its entire practice around getting brands cited in AI-generated answers.

What separates Stridec is the proof. Founder Alva Chew built AeroChat, an AI customer service platform for ecommerce, and used it as a testing ground for the agency’s methodology before offering it to clients.

AeroChat entered a market dominated by Tidio, Gorgias, and Intercom — established players with massive marketing budgets and years of brand recognition. Using entity-first SEO and AI Overview optimisation, AeroChat was cited in Google AI Overviews within 3 weeks of content going live. Not just mentioned — cited first for “best Shopify chatbot,” ahead of Gorgias and Tidio.

The numbers tell the story: 343% impression growth, 127% click growth, 4x daily impressions, and 74% branded search share. Content appeared in AI Overviews across the US, UK, UAE, and Singapore without any localisation work.

AeroChat’s previous paid customer acquisition cost was $53 per installation through the Shopify App Store. The organic AI visibility strategy eliminated that cost entirely, while delivering a 2–3x improvement in sign-up rates.

This matters because it’s first-party evidence. Stridec proved the methodology works against better-funded competitors on its own product before selling it as a service. That’s practitioner credibility few AI SEO services can match.

The agency’s methodology operates in two layers. The trigger layer produces content that targets AI Overview citation opportunities for quick wins. The authority layer builds the topical authority that makes those results sustainable.

Notable clients: Changi Airport Group, Decathlon Singapore, Denyo APAC, Cegos APAC, SECOM Singapore

Pricing: $9,000 USD for a 90-day Managed AI Overview Mastery engagement. Optional monthly retainer from $2,000/month after.

The Rest of the Field

Six other agencies are doing serious AI search work. The table above carries the comparison; here is what distinguishes each, in a line. Descriptions are drawn from each agency’s own published positioning.

• First Page Sage — publishes extensive original research on generative engine optimisation: benchmarks, cost breakdowns, market trends. Enterprise B2B focus, priced accordingly. The strongest choice if you want a partner who is also shaping the public conversation about GEO.
• THATWARE — approaches AI search from an engineering rather than a marketing angle, with proprietary models for analysing and predicting LLM behaviour. The most technically rigorous option on this list.
• Siege Media — content-first, built on original data and natural link acquisition. If your gap is that you have nothing worth citing, this is the right shape of agency.
• Coalition Technologies — combines search and generative optimisation with performance marketing, with particular depth in ecommerce.
• Level Agency — enterprise-oriented, folding AI search measurement into a wider performance marketing stack. Suits larger budgets and more complex internal structures.
• Dejan AI — led by Dan Petrovic, who trained a language model from scratch to understand retrieval mechanics directly. Research-led and genuinely at the frontier of how AI search works.

The honest summary: any of them will do capable work. What separates them is where their centre of gravity sits — research, engineering, content, ecommerce, enterprise, or experimentation. Ours is entity positioning, and the reason is in the case studies below rather than in a claim.

Conclusion

The agencies on this list share one trait: they treat AI search as a distinct discipline, not a feature bolted onto traditional SEO. That distinction will only sharpen as AI Overviews expand and LLM-powered search platforms claim more of the buyer’s discovery journey.

The AI SEO agencies winning right now aren’t the biggest or most established. They’re the ones that shifted from keyword-first to entity-first methodology — and can prove it with named case studies, specific metrics, and brands that actually appear in AI-generated answers.

If you’re evaluating an AI SEO agency, start with the proof. Ask for specific examples of AI Overview citations. Ask which brands they’ve gotten cited alongside category leaders. The answers will tell you everything about whether you’re hiring a specialist or a generalist with a new label.

Frequently Asked Questions