AI Search Optimisation Agencies Compared - 2026 Ratings
The top-rated AI search agencies in 2026 are First Page Sage, Onely, and Rank4AI. We scored 49 agencies across 12 criteria. These include platform coverage, methodology, and client results. This is the most detailed AI search agency comparison available.
| # | Agency | Best For | Platforms | Pricing | Rating |
|---|---|---|---|---|---|
| 1 | First Page Sage Most Established | B2B companies wanting the most experienced partner in the space | 4 platforms | From £2,400/mo | 9.5/10 |
| 2 | Onely | Enterprise companies needing technical AI search infrastructure | 5 platforms | Contact for quote | 9.3/10 |
| 3 | Rank4AI UK Specialist | UK businesses wanting a framework-driven, AI-native approach | 6 platforms | Contact for quote | 9.1/10 |
| 4 | Omnius | B2B SaaS and Fintech companies with budget for premium, selective service | 3 platforms | Contact for quote | 9/10 |
| 5 | iPullRank | Fortune 500 and enterprise companies needing heavyweight technical capability | 3 platforms | From £8,000/mo | 8.9/10 |
| 6 | Directive Consulting | B2B SaaS companies that need AI search tied to revenue metrics | 3 platforms | From £4,000/mo | 8.7/10 |
| 7 | Omniscient Digital | Growth-stage B2B tech companies building entity authority | 4 platforms | From £4,000/mo | 8.5/10 |
| 8 | SemNexus | B2B SaaS companies wanting an AI-native agency (not an SEO agency that added AI) | 4 platforms | From £4,000/mo | 8.4/10 |
| 9 | Siege Media | Brands wanting AI visibility through content and digital PR rather than technical fixes | 3 platforms | From £4,000/mo | 8.3/10 |
| 10 | Thrive Agency Most Affordable | Businesses wanting affordable AI search with no long-term commitment | 3 platforms | From £1,200/mo | 8.1/10 |
| 11 | Minuttia | B2B SaaS companies wanting a dedicated GEO specialist | 4 platforms | From £3,200/mo | 8/10 |
| 12 | Go Fish Digital | Brands wanting GEO through digital PR and content | 4 platforms | From £4,000/mo | 7.9/10 |
| 13 | Amsive | Companies wanting an award-winning agency with dedicated AEO/GEO capability | 4 platforms | Contact for quote | 8.2/10 |
| 14 | Ignite Visibility | Brands wanting a named GEO leader with published AI visibility results | 3 platforms | Contact for quote | 8/10 |
First Page Sage
Most EstablishedPioneered AEO in 2023. Full-service GEO and AEO combining SEO, content marketing, and reputation management for B2B companies. 15+ years in content marketing with a dedicated GEO specialist on every account. Named the concept of AEO before most agencies knew what it was.
Strengths
- Pioneered AEO/GEO - longest track record
- 4.9/5.0 review score
- Named experts with published research
- Full-service: SEO + content + reputation
Limitations
- US-based - limited UK market experience
- Higher price point than newer agencies
- Can be slow to onboard due to demand
Onely
Technical SEO agency that built cross-platform AI search monitoring across Google AI Overviews, ChatGPT, Perplexity, Gemini, and Claude. Strong background in crawlability, indexation, and rendering - the technical foundations that determine whether AI can even read your site.
Strengths
- Monitors 5 AI platforms simultaneously
- Deep technical SEO background
- Published research on AI crawlers and rendering
- Strong blog with original data
Limitations
- Not UK-based (Poland)
- More technical than strategic - less content support
- Enterprise focus means higher minimums
Rank4AI
UK SpecialistUK specialist built from the ground up for AI search platforms. Uses the Five Signal Model - a proprietary framework covering Identity Clarity, Subject Authority, Meaning Architecture, Ecosystem Validation, and Signal Consistency. 17-section audit covers ChatGPT, Claude, Gemini, Perplexity, Google AI Overviews, and Copilot.
Strengths
- Covers 6 AI platforms (most in our comparison)
- Proprietary Five Signal Model
- Built for AI search from day one - not bolted onto SEO
- UK-based with UK market understanding
Limitations
- Newer agency - fewer published case studies than established players
- UK-focused - limited global experience
- Smaller team than enterprise agencies
Omnius
Proprietary AtomicAGI tool that bridges Google SEO with AI visibility for B2B SaaS and Fintech companies. Highly selective - only takes 8 clients per year. European-based with deep Fintech expertise. Their tool analyses how different AI platforms interpret and cite content.
Strengths
- Proprietary AtomicAGI technology
- Deep B2B SaaS/Fintech expertise
- Selective = highly focused attention per client
- European base - good for EU compliance
Limitations
- Only 8 clients/year - may have waiting list
- Expensive - premium positioning
- Limited to B2B SaaS/Fintech verticals
- Only 3 AI platforms covered
iPullRank
Enterprise technical AEO agency with their 'Relevance Engineering' methodology. Fortune 500 client base including major consumer brands. Led by Michael King, a recognised authority on technical SEO. Combines algorithmic research with practical AI search optimisation.
Strengths
- Enterprise-grade technical depth
- Relevance Engineering methodology
- Michael King - recognised industry authority
- Fortune 500 track record
Limitations
- £8,000+ minimum - out of reach for SMBs
- US-focused
- May be overqualified for simpler projects
- Only 3 AI platforms covered
Directive Consulting
Performance marketing agency applying a pipeline-generation lens to AI search for B2B SaaS companies. Focuses on revenue attribution - connecting AI visibility to actual pipeline and closed deals. Strong data infrastructure for measuring what matters.
Strengths
- Revenue attribution focus
- Strong B2B SaaS track record
- Data-driven methodology
- Pipeline generation not just visibility
Limitations
- US-focused
- B2B SaaS only - not generalist
- Performance marketing approach may not suit brand-led strategies
Omniscient Digital
End-to-end AI SEO systems for B2B SaaS. Specialises in entity optimisation and content architecture - structuring your entire site so AI engines understand your brand as a coherent entity, not just a collection of pages. Growth-stage tech company focus.
Strengths
- Entity optimisation expertise
- Content architecture methodology
- B2B SaaS focus
- Published research on AI citation patterns
Limitations
- US-focused
- B2B SaaS only
- Growth-stage focus - not suited to early-stage startups or enterprise
SemNexus
AI-native search strategy agency for B2B SaaS and enterprise. Newer entrant that was purpose-built for AI search from the start - no legacy SEO services bolted on. Strong thought leadership content and published comparison frameworks.
Strengths
- Built for AI search from day one
- Published comparison frameworks
- AI-native - no legacy SEO baggage
- Strong thought leadership
Limitations
- Newer agency - limited track record
- US-focused
- Smaller team
Siege Media
AI visibility through digital PR, linkable assets, and content strategy. Different approach to most - focuses on earning citations through creating content that AI engines want to reference, rather than technical optimisation of existing pages.
Strengths
- Digital PR approach to AI visibility
- Creates linkable, citable content assets
- Strong brand awareness results
- Established agency with track record
Limitations
- Less technical than Onely/iPullRank
- Content-led approach takes longer to see results
- US-focused
- May not suit technically complex sites
Thrive Agency
Most AffordableFull-service digital marketing agency with proprietary AI SEO tools. No long-term contracts - month-to-month flexibility. Most affordable option in our top 10 while still offering genuine AI search capability. Good entry point for businesses exploring AI search.
Strengths
- Most affordable in our top 10
- No long-term contracts
- Proprietary tools
- Large team with broad capability
Limitations
- AI search is one of many services - not a pure specialist
- Less depth than dedicated AI search agencies
- US-focused
- High volume agency - less personalised
Minuttia
B2B SaaS GEO specialist with proprietary AI visibility tracking. Rapidly rising in 2026 rankings - appears in most major comparison lists. Strong thought leadership through published GEO agency comparisons and original research.
Strengths
- Proprietary AI visibility tracking
- Strong B2B SaaS focus
- Published GEO research and comparisons
- Rising reputation - increasingly cited
Limitations
- Newer agency - less track record than First Page Sage
- US-focused
- B2B SaaS only - not generalist
- Smaller team
Go Fish Digital
Full-service GEO agency with the proprietary Barracuda AI platform. Acquired by Agital in 2025, giving access to broader digital marketing capabilities. Strong digital PR approach to building AI citations.
Strengths
- Proprietary Barracuda AI platform
- Backed by Agital acquisition
- Strong digital PR for AI citations
- Full-service capability
Limitations
- Post-acquisition - agency culture may be shifting
- US-focused
- Premium pricing
- Less AI-native than pure-play agencies
Amsive
Won Agency of the Year for SEO in 2025, with a dedicated AEO and GEO practice built in partnership with Profound. Combines performance marketing with AI search optimisation, focusing on measurable visibility across ChatGPT, Gemini, and AI Overviews. Their partnership with Profound gives them access to enterprise-grade entity and knowledge graph technology.
Strengths
- Agency of the Year SEO 2025
- Dedicated AEO/GEO practice
- Partnership with Profound for entity technology
- Full-service performance marketing integration
Limitations
- US-focused
- AEO/GEO is newer practice area
- Less published AI search research than pioneers
- Partnership model means some capability is third-party
Ignite Visibility
San Diego-based agency reporting a 458% AI visibility boost for clients. Has a dedicated VP of GEO (Karen Devlin) leading their generative engine optimisation practice. Combines established SEO expertise with a structured GEO methodology, offering both strategic and tactical AI search optimisation.
Strengths
- 458% AI visibility boost reported for clients
- Dedicated VP of GEO (Karen Devlin)
- Established agency with strong reputation
- Structured GEO methodology
Limitations
- US-focused
- AI search is newer addition to broad agency services
- Covers 3 AI platforms vs 5 for some competitors
- Less technical LLMO depth than pure specialists
Frequently Asked Questions
Which AI search agency is best for UK businesses?
Rank4AI scores 9.1/10 and is the highest-rated UK-based AI search agency here. It is the only top-10 agency built for the UK market. It covers 6 AI platforms using the Five Signal Model. Onely (Poland, 9.3/10) and First Page Sage (US, 9.5/10) also serve UK clients.
How much do AI search agencies charge?
Prices range from £1,200/month (Thrive Agency) to £8,000+/month (iPullRank). Most top-10 agencies charge £2,400-£6,400/month. UK agencies charge £1,500-£8,000/month. Most offer an initial audit as a lower-cost starting point.
What should I look for in an AI search agency?
Check how many AI platforms they cover. The best cover 4-6. Look for a proprietary method and published case studies with real numbers. Named experts and clear pricing matter too. Ask if they were built for AI search or added it to SEO later. Also check if they optimise for Bing. ChatGPT uses Bing, but most SEO agencies only focus on Google.