Best Gemini SEO Agencies 2026 - Compared
Best Gemini SEO agencies in 2026. 6 agencies compared on Google Gemini citation results, AI Overviews, and Gemini visibility.
Gemini is Google's AI and it is deeply integrated with Google Search. AI Overviews, Gemini responses, and Google's knowledge graph all work together. Gemini SEO means understanding this ecosystem and optimising content to be cited across all of Google's AI surfaces.
We scored each agency on Gemini-specific evidence: Google AI crawler research, Gemini citation data, entity optimisation methodology, and AI Overviews results.
Best Gemini SEO Agencies Compared
| # | Agency | Best For | Platforms | Pricing | Score |
|---|---|---|---|---|---|
| 1 | First Page Sage | Brands wanting research-backed Gemini SEO strategy | 4 platforms | From £2,400/mo | 9.4/10 |
| 2 | Onely | Companies needing technical Gemini crawler optimisation | 5 platforms | Contact for quote | 9.2/10 |
| 3 | iPullRank | Enterprise companies wanting Gemini visibility | 5 platforms | From £8,000/mo | 8.9/10 |
| 4 | Omniscient Digital | B2B SaaS wanting entity-driven Gemini citations | 4 platforms | From £4,000/mo | 8.5/10 |
| 5 | Siege Media | Brands wanting content-driven Gemini visibility | 3 platforms | From £3,200/mo | 8.2/10 |
| 6 | WebFX | Mid-market companies wanting accessible Gemini SEO | 3 platforms | From £1,800/mo | 7.9/10 |
Detailed Reviews
First Page Sage
First Page Sage tracks Gemini citation patterns alongside ChatGPT and has published the most comparative data between platforms. Their research shows how Gemini sources information differently from ChatGPT, and their methodology accounts for these differences. Essential reading for any brand serious about Gemini visibility.
Strengths
- Most published Gemini citation research
- Comparative data between Gemini and ChatGPT sourcing
- 18+ months of Gemini tracking data
- Methodology accounts for Gemini-specific patterns
Limitations
- US-based with limited UK Gemini data
- Premium pricing from £2,400/mo
- B2B focus
Onely
Onely has published detailed research on how Google's AI crawlers interact with websites. Since Gemini is Google's AI, understanding how Google crawls and indexes content for AI responses is fundamental. Onely's technical monitoring shows exactly how Gemini accesses and cites content.
Strengths
- Deep research on Google's AI crawling infrastructure
- Technical monitoring of Gemini content access
- 5 AI platforms with strong Gemini focus
- Published data on how Gemini selects citations
Limitations
- Poland-based
- More technical than strategic
- Enterprise focus
iPullRank
iPullRank has delivered Gemini visibility gains for enterprise clients. Their Relevance Engineering methodology accounts for how Gemini processes entities and structured data differently from ChatGPT. At enterprise scale, they have strong Gemini citation lift data.
Strengths
- Enterprise Gemini citation data
- Relevance Engineering tuned for Gemini patterns
- 5 AI platforms
- Published Gemini-specific technical research
Limitations
- Enterprise pricing from £8,000/mo
- Not suited to mid-market
- US client base
Omniscient Digital
Omniscient Digital's entity optimisation approach works particularly well for Gemini. Google's AI relies heavily on entity relationships and knowledge graph data. Omniscient builds these entity structures, which helps Gemini understand and cite brands more accurately.
Strengths
- Entity optimisation aligns with Gemini's knowledge graph
- Published Gemini case studies for SaaS
- 4 AI platforms with Gemini focus
- Content architecture for Gemini entity recognition
Limitations
- B2B SaaS only
- Smaller agency
- Less Gemini-specific research than leaders
Siege Media
Siege Media's content-led approach earns Gemini citations through original research and authoritative content. Since Gemini has deep integration with Google's search index, high-quality content that performs well in traditional search also tends to earn Gemini citations. Siege leverages this connection.
Strengths
- Content-led approach leverages Google's index connection
- Original research earns both Google and Gemini citations
- Established methodology with multi-year results
- Strong consumer and B2B portfolio
Limitations
- Content-first takes longer
- 3 AI platforms
- US-focused
WebFX
WebFX offers Gemini SEO at scale. Their large client base gives them broad data on what drives Gemini citations across different industries. Since Gemini is tightly integrated with Google's ecosystem, WebFX's traditional Google SEO expertise translates well to Gemini optimisation.
Strengths
- Most affordable Gemini SEO option
- Broad cross-industry Gemini data
- Google SEO expertise translates to Gemini
- 58+ verified reviews
Limitations
- Generalist agency
- 3 AI platforms
- Less Gemini-specific methodology
How Gemini SEO Differs From ChatGPT SEO
Gemini is deeply integrated with Google's search index and knowledge graph. It relies more on entity relationships and structured data than ChatGPT does. Content that performs well in Google Search has an advantage in Gemini responses. But Gemini also applies its own AI reasoning, so traditional rankings alone are not enough. You need entity authority and structured answers too.
Frequently Asked Questions
Which agency is best for Gemini SEO?
First Page Sage (9.4/10) leads with the most Gemini citation research. Onely (9.2) is best for technical Google AI crawler work. iPullRank (8.9) delivers enterprise-scale Gemini results.
How is Gemini SEO different from ChatGPT SEO?
Gemini uses Google's search index and knowledge graph. It relies more on entity relationships and structured data. ChatGPT uses its own crawler and weights content differently. The best agencies optimise for both.
How much does Gemini SEO cost?
Gemini SEO costs range from £1,800/month to £8,000+/month. Most agencies charge £2,400-4,000/month. Gemini SEO often overlaps with broader AI SEO programmes.
Related Comparisons
Oliver Mackman
AI Search Analyst, SEOCompare
Oliver leads SEOCompare's editorial and comparison research. With over a decade in digital marketing, he oversees agency evaluation, tool testing, and AI search data analysis.
Last reviewed: 7 April 2026
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