UK SEO Agency Comparison

CarrieAnn Sudlow vs Impression

Side-by-side comparison of two UK SEO and AI search agencies on price, contract length, AI platform coverage, sector specialism, and verdict.

CarrieAnn Sudlow (from £1,500/month, 3-month minimum, 4 AI platforms covered) is best for founder-led saas and b2b brands wanting hands-on consultant access. Impression (from £5,000/month, 6-month minimum, 3 AI platforms covered) is best for mid-market b2b brands wanting integrated seo + paid + content. Pick CarrieAnn Sudlow if you prioritise saas or b2b; pick Impression if you prioritise b2b or finance.

Side-by-side

Criterion CarrieAnn Sudlow Impression
Headquarters Manchester, UK Nottingham, UK
Founded 2018 2012
Team size 1-5 100+
Starting price £1,500/mo · cheaper £5,000/mo
Pricing band Boutique consultant Mid-market to enterprise
Minimum contract 3 months · shorter 6 months
Services AI SEO, GEO, Consultancy SEO, PPC, Content, Digital PR, AI SEO
Sector focus SaaS, B2B, Service businesses B2B, Finance, Tech, Retail · broader
AI platforms covered ChatGPT, Gemini, Perplexity, AI Overviews (4) · wider ChatGPT, Gemini, AI Overviews (3)
Proprietary tool
Case studies 5-10 20+
Best for Founder-led SaaS and B2B brands wanting hands-on consultant access Mid-market B2B brands wanting integrated SEO + paid + content
Watch out for Single-consultant capacity caps execution volume; no team cover Less AI-search-native than purpose-built agencies; broader scope dilutes SEO depth

When CarrieAnn Sudlow wins

Pick CarrieAnn Sudlow if your business matches the saas or b2b or service businesses profile, your monthly budget is comfortable around £1,500, and you want 3 disciplines from one provider. Their 3-month minimum contract suits brands willing to commit but unwilling to lock in for a year.

When Impression wins

Pick Impression if your business matches the b2b or finance or tech or retail profile, your monthly budget is comfortable around £5,000, and you want 5 disciplines from one provider. Their 6-month minimum contract suits brands willing to commit but unwilling to lock in for a year.

Verdict

Neither agency is universally better. The right answer depends on your sector, budget, and AI platform priorities. If you want a third independent option to consider alongside this comparison, use the SEOCompare agency matcher to surface a personalised three-to-five-agency shortlist.

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