By Alex Price | June 18, 2025 | Updated March 18, 2026 | 4 min read
The world of Generative Engine Optimisation (GEO) and helping brands be more visible in AI search engines LLM results is moving fast, with a number of agencies and consultancies specialising in the space.
This list was first published in June 2025 when the GEO agency space was nascent. Nine months on, the market has moved fast. We have updated where relevant below.
What to look for in a GEO partner in 2026
The criteria for evaluating a GEO agency have sharpened considerably since mid-2025. Based on what the primary research shows drives AI citation, here is what to verify when speaking to any agency:
- Visibility tracking across ChatGPT, Perplexity, and Google AI Mode - not just AI Overviews, which behave differently (only 13.7% citation overlap between AI Overviews and AI Mode, Ahrefs December 2025)
- Methodology around referring domain building - SE Ranking’s study of 129,000 domains confirmed this is the single strongest predictor of ChatGPT citation (December 2025)
- Strategy for third-party platform presence, domains active on G2, Trustpilot, Capterra, and similar platforms earn 3x more ChatGPT citations per SE Ranking’s research
- Content structure approach - sections of 120 to 180 words between headings earn 70% more ChatGPT citations than fragmented content. Q&A format nearly doubles citation probability
- How they handle content freshness - pages updated within the past three months average 6 citations versus 3.6 for untouched content
If first you’re wondering: what actually is a ‘GEO agency’? Then checkout our recent post first.
Here are some of the top agencies in the AI search / GEO / LLMO space - especially for B2B marketers
1. FirstMotion
FirstMotion, based in London but working globally and with a very deep B2B SaaS & software specialism. They’ve built an entire proposition around AI search and generative engine optimisation and their influence on B2B buyer journeys. They’re building the next generation of Organic Growth agency - but don’t be fooled by the fact they were founded 2025 - their founder previously built and successfully sold a B2B SEO agency after working with clients like Amazon.
Beyond the deep sector focus and innovative delivery model build, what makes FirstMotion genuinely unique as an AI SEO agency is their technology offering. Their ContextualJourney™ platform sits at the heart of their work, guiding the deep audience intelligence work needed to make an AI search strategy a success. This makes FirstMotion stand out in relation to legacy service driven SEO agencies, and their data led and unique insights into how AI search is changing B2B buyer journeys are a must read for B2B marketers.
2. Seer Interactive
Seer are a US headquartered digital marketing agency with a strong focus on SEO. They’ve been around for a long time, delivering SEO for a mix of clients including some B2B brands.
We’re a fan of many of their insights, and the research they are doing into what really works when it comes to AI search.
Their founder wrote a great piece on the future of search engines recently that we recommend reading.
3. iPullRank
Also based in the US, iPullRank are well known in the SEO and content world.
They focus on technical SEO, content engineering, and audience-focused strategies, with the goal of driving results through data-backed, strategic approaches.
The agency, founded by Mike King, has a strong reputation for delivering significant revenue growth for clients through organic search.
4. Verto Digital
Verto Digital is a B2B growth-focused digital marketing agency based in Sofia, Bulgaria, that specializes in providing value-driven marketing solutions for growth-stage companies supported by leading technology venture capital funds.
They have been developing and sharing some strong methodologies when it comes to auditing brands in LLMs and to develop a GEO strategy.
5. WebFX
WebFX are a common feature on lots of agency round ups. They have a broad proposition, but AI search is certainly now part of it.
They are a tech-enabled digital marketing agency that offers a wide range of services to help businesses grow, including SEO, web design, and PPC.
6. SEO Locale
SEO Locale are based near Philadelphia, US.
Their mission is to help businesses of all sizes grow with clear, results-driven digital marketing strategies.
Their website makes reference to lots of ‘AEO’ and ‘SearchGPT’ marketing services, so it’s clear they’ve been doing some thinking about how to help brands be successful when it comes to the new era of AI search and the transition from legacy SEO.
7. Passionfruit
Passionfruit are positioned as SEO/GEO agency, going all in on organic growth using AI. They understand B2B software, and know that B2B SEO is different, because B2B buyer journeys are different.
We like the fact they’ve built a proposition around B2B SaaS, talking to the pain points of B2B marketers.
8. Webspero
Webspero are an India based SEO agency that has an AI driven proposition, so if you’re looking for an outsourced or overseas SEO agency, they may be worth considering.
They describe themselves as a thriving full-stack digital marketing agency with over 80 efficient team members and have experience working with B2B brands.
About the Author
Alex Price dropped out of university to turn his part time freelance business that he started as a teenager in his bedroom into an award winning digital agency. He grew the business organically, with no debt or investment, from just him as a 20 year old sole founder to a team of ~35 people and multi-million £ annual revenues and ~25% net profit margins - winning clients like Amazon. He also founded FINITE, a B2B marketing media brand and global membership community for software CMOs. In April 2022, aged 29, he sold the business to a US headquartered strategic buyer, realising the value of lots of hard work and achieving a life changing outcome.