Best GEO agencies in 2026: 12 ranked

Mike King's team was arguing about how language models retrieve and rank passages while most agencies were still selling meta-tag audits. iPullRank calls the discipline relevance engineering, and the work is genuinely deep: embeddings, passage-level structure, entity modelling, retrieval testing. If you have an enterprise site and an in-house team that can implement, this is the sharpest thinking you can buy. It is also priced for enterprises, and the deliverable is strategy — you still need people to ship it.

Siege built its name on content that earns links, and that turns out to be a decent proxy for content that gets cited. Their GEO approach is not a separate product — it is the same editorial bar applied with AI answers in mind: original data, clear structure, sources an engine can verify. Quality is consistently high. Volume is not: this is a human writing shop, so you are buying a handful of exceptional pieces a month, priced accordingly.

Eric Siu's agency moved early and loudly into AI search, and the practice is real — AI visibility tracking, prompt-level reporting, content rebuilt for answer extraction — sitting inside a broader paid-plus-organic growth shop. Good if you want one vendor holding SEO, GEO and paid together and reporting on pipeline rather than rankings. The trade-off is the usual full-service one: GEO is a service line, not the whole company.

Amsive is a large performance agency whose SEO group — led by people with long enterprise track records — added AI search work early and treats it as measurement first: what surfaces cite you, for which prompts, versus which rivals. That discipline matters, because most GEO reporting is vibes. Scale is the upside and the downside. Big teams, big process, big minimums, and you will not be their largest account.

A New York growth team that works like an embedded pod rather than a vendor, and has built a visible AI-search practice aimed at venture-backed startups. Fast, experimental, comfortable being told to test something on Monday and report Friday. That speed suits a startup and grates on a compliance-heavy enterprise. Content volume is modest and the model assumes you have a marketing lead to steer it.

A small SaaS-focused content SEO shop that added proprietary AI visibility tracking and now sells GEO as a first-class service. The work is thoughtful and the SaaS specialisation is real — they understand product-led content, comparison pages, and the bottom-of-funnel terms AI answers increasingly swallow. Boutique capacity is the ceiling: a small team, a small client list, a queue.

Built around expert-authored thought leadership, which is a sound bet for AI search: engines lean on content with a named, credible human behind it. Strong in B2B, professional services and enterprise software. The method is slow by design — subject-matter interviews, long production cycles — and the published ranking studies read as marketing, so weigh their self-reported numbers accordingly.

The safe corporate choice. WebFX is huge, publishes its pricing tiers, and has folded AI-search work into its existing SEO product. You will get a process, a dashboard and a reporting rhythm. You will also get a junior account manager, templated deliverables and a long onboarding, because that is what running thousands of accounts requires. Fine as a floor; rarely the sharpest work on this list.

A B2B SaaS SEO agency that has leaned into AI search, with a sensible focus on bottom-of-funnel and comparison content — exactly the queries where an AI answer decides the shortlist before a human sees a SERP. Practical, unflashy, reasonably priced for the category. Small team, so throughput is limited and the technical bench is thinner than the enterprise names above.

A performance agency that reframed its offer around AI-driven discovery — LLM answers, forums, social search — which is a more honest map of where buyers actually look than a rankings report. Good analytics culture and clean attribution work. The GEO practice is newer than the paid-media practice, so expect strong measurement and moderate content firepower.

A respected B2B content and SEO shop, with better-than-average strategy documents and a genuine focus on revenue rather than sessions. AI search is handled as an extension of good content practice rather than a distinct discipline, which is defensible but means less citation-specific structuring than the specialists. High retainers, low volume, senior people.