Compare AI Search Optimisation
Agencies & Tools
SEOCompare is the UK's independent comparison of AI search optimisation agencies and tools, helping businesses find the right partner for ChatGPT, Gemini, Perplexity, and AI Overviews visibility.
The top AI SEO agencies and AI search agencies in 2026 include First Page Sage, Onely, Rank4AI, and Omnius. We rate 12 agencies on 12 criteria. These include platform coverage, methodology, pricing, and client results.
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Rankings & Reviews
Independent ratings across every AI search category. Updated monthly.
14 Best AI SEO Agencies
Top rated, compared and reviewed
10 Best AI SEO Tools
Tracking and measurement
19 Best AI SEO UK
UK agencies rated
14 Top GEO Agencies
Generative Engine Optimisation
12 Leading AEO Agencies
Answer Engine Optimisation
16 Best LLMO Agencies
LLM Optimisation
8 Best for Ecommerce
Product visibility specialists
10 Top for B2B
Pipeline-focused agencies
12 Leading for SaaS
SaaS growth specialists
6 Best for Law Firms
Legal sector specialists
6 Top for Healthcare
YMYL compliant agencies
6 Best for Financial
Regulated sector specialists
8 ChatGPT Agencies
ChatGPT visibility specialists
6 Perplexity Agencies
Perplexity search specialists
6 AI Overviews Agencies
Google AI summary specialists
7 Most Affordable
Under £2,000/month
6 AI-Only Agencies
No traditional SEO
48 Agency Directory
Interactive world map
7 Best AI SEO Agencies
Ranked by client results
5 Top AI SEO Deep Dive
Ranked by innovation
2026 UK Market Benchmarks
Pricing tiers, citation data, sourced
10 Top AI SEO Tools
Ranked by value for money
6 ChatGPT SEO Agencies
ChatGPT-specific rankings
15 Top USA Agencies
US market leaders
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Find the right agency for your sector
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Top AI Search Agencies 2026
Ranked by our 12-criteria evaluation. Last reviewed April 2026.
Pioneered AEO in 2023. Full-service GEO and AEO for B2B companies. 15+ years in content marketing.
Cross-platform AI search monitoring and technical SEO. Strong on crawlability and indexation across all major AI platforms.
UK specialist using the Five Signal Model - a proprietary framework covering Identity Clarity, Subject Authority, Meaning Architecture, Ecosystem Validation, and Signal Consistency.
Proprietary AtomicAGI tool. Bridges Google SEO with AI visibility. Highly selective - only takes 8 clients per year.
Enterprise technical AEO with their Relevance Engineering methodology. Fortune 500 client base.
Compare agencies head-to-head
Side-by-side comparisons and alternatives for every UK SEO and AI search agency we rate.
Agency vs Agency
Every two-way comparison on price, contract, AI platform coverage, and sector fit, with a verdict on which fits which buyer.
Browse all comparisons →Agency Alternatives
Five alternatives to each major UK SEO and AI search agency, with pricing, sector fit, and AI platform coverage.
Find alternatives →AI Search Statistics UK 2026
Sourced from named third-party research, each figure linked to its study
Guides
All guides →What is AI Search Optimisation?
Complete guide to GEO, AEO, LLMO and how AI platforms cite businesses.
GEO vs SEO: What's the Difference?
How generative engine optimisation differs from traditional SEO.
How to Get Cited in AI Overviews
Step-by-step guide to appearing in Google's AI-generated summaries.
AI Search Optimisation Cost Guide
How much agencies charge in the UK. Small business to enterprise pricing.
Common Questions
All Q&A → What is AI search optimisation?
AI search optimisation helps AI platforms find and recommend your business. It covers ChatGPT, Gemini, Perplexity, and AI Overviews. The main approaches are GEO, AEO, and LLMO.
How much does it cost?
UK pricing ranges from £1,500 to £25,000/month. Small business: £1,500-£3,000. Mid-market: £3,000-£8,000. Enterprise: £8,000-£25,000+. Most agencies offer initial audits from £500-£2,000.
What's the difference between GEO, AEO, and LLMO?
GEO focuses on AI-generated answer citations. AEO targets zero-click answers and featured snippets. LLMO specifically optimises for LLM platforms like ChatGPT and Claude. All fall under AI search optimisation.
Do I need an agency or can I do it myself?
Basic optimisation is possible in-house: clear headings, schema markup, consistent brand descriptions, allowing AI crawlers. Agencies add proprietary audit tools, cross-platform testing, and ongoing monitoring. Most businesses benefit from at least an initial audit.
How long does it take to see results?
Initial improvements to structured data and crawlability can take effect within weeks. AI citation improvements typically appear in 2-3 months. Significant visibility gains across multiple AI platforms usually take 3-6 months of consistent work.
Latest News
All posts →Insights & Analysis
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