SEO Agencies in England

44 SEO agencies are listed in England. 38 have been assessed on the Agency List Score as of October 2026; the highest-ranked is STM Agency at 97.8.

Ranked · 33 of 38 assessed

Ordered by Agency List Score
#1 of 38 assessed
STM Agency
98

Combines storytelling and AI for brand growth

Ads ManagementContent MarketingLead Generation
#2 of 38 assessed
SkyWalk
97

Digital marketing with SEO, social media, and web development

Ads ManagementAnalytics & ReportingContent Marketing
#3 of 38 assessed
Cheshire Cat Marketing
97

UK-based SEO, social media, and paid campaigns for SMEs, in-house

Content MarketingEmail MarketingSearch Engine Optimization
#4 of 38 assessed
IDHL
97

Accelerates growth with digital marketing and eCommerce solutions

Ads ManagementAnalytics & ReportingContent Marketing
#5 of 38 assessed
Magnetic
97

Guiding brands with strategy, design, and delivery

Ads ManagementAnalytics & ReportingContent Marketing
#6 of 38 assessed
TMW
97

Integrated creativity and connectivity across every channel

Ads ManagementAnalytics & ReportingContent Marketing
#7 of 38 assessed
Ina4
96

Simplifying SEO, PPC, and web development for UK businesses

Search Engine OptimizationWebsite Optimization
#8 of 38 assessed
Big Group
96

Creative marketing for finance, technology, and cultural sectors

Ads ManagementAnalytics & ReportingContent Marketing
#9 of 38 assessed
The Creative Composite
96

Dental marketing company with Google SEO and social media expertise

Search Engine OptimizationSocial Media Management (SMM)Website Optimization
#10 of 38 assessed
Rise - Growth Marketing Collective
96

Growth marketing for startups and SMEs with flexible, data-driven strategies.

Content MarketingConversion Rate OptimizationLanding Pages
#11 of 38 assessed
Converted
96

Design and PPC services for inbound lead capture and search visibility

Content MarketingConversion Rate OptimizationLanding Pages
#12 of 38 assessed
Bopgun Design
96

Digital strategy and design for recurring revenue growth

Ads ManagementAnalytics & ReportingContent Marketing
#13 of 38 assessed
Rankraze
95
Verified

SEO, PPC, and Social Media Marketing for UK Businesses

Content MarketingEmail MarketingReputation Management
#14 of 38 assessed
E Intelligence
94
Verified

AI-Driven Digital Marketing and Web Development Services

Content MarketingConversion Rate OptimizationEmail Marketing
#15 of 38 assessed
Mr B & Friends
94

Brand strategy and campaigns for bold business transformation

Ads ManagementAnalytics & ReportingContent Marketing
#16 of 38 assessed
Edge Creative
94

Integrated marketing with digital strategy and creative design

Content MarketingConversion Rate OptimizationEmail Marketing
#17 of 38 assessed
(hug)london
91

Crafts solid brands and websites for growth

Ads ManagementAnalytics & ReportingContent Marketing
#18 of 38 assessed
CrazyGraph
78
Verified

Strategic digital marketing services to enhance brand visibility and engagement

Content MarketingSearch Engine OptimizationSocial Media Management (SMM)
#19 of 38 assessed
Technolangs Solutions
76
Verified

Comprehensive digital marketing services including SEO, email, and content

Content MarketingConversion Rate OptimizationEmail Marketing
#20 of 38 assessed
Spiderzone
73

Design, branding, and digital marketing across Europe and the UK

Ads ManagementAnalytics & ReportingContent Marketing
#21 of 38 assessed
Pixel Hero
73

Web design and e-commerce solutions across the UK

Landing PagesSearch Engine OptimizationWebsite Optimization
#22 of 38 assessed
Make Studio
73

High-quality design and motion for global brands

Ads ManagementAnalytics & ReportingContent Marketing
#23 of 38 assessed
Weeb Digital
73

Custom web development and digital marketing for global brands

Ads ManagementContent MarketingSearch Engine Optimization
#24 of 38 assessed
400
73

SEO and PPC services for inbound lead capture and search visibility

Ads ManagementAnalytics & ReportingContent Marketing

Also in England · 11 not ranked here

6 have not yet been assessed on the Agency List Score. Alphabetical.

About this ranking

What this page ranks

This page ranks 33 of the 38 assessed SEO agencies in England — the ones carrying a published score — out of 44 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, SEO in England. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 38, so the strongest award available here is top 10%.

The 6 SEO agencies not yet assessed are listed on this page but not ranked.

A further 5 were assessed and no published evidence of their work was found, so no score is shown for them.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many SEO agencies are in England?
44 are listed on Agency List in England. 38 of them have been assessed on the Agency List Score as of October 2026, and 33 of those carry a published score.
Which SEO agency in England is ranked highest?
STM Agency, with an Agency List Score of 97.8, ranks #1 of 38 assessed agencies in SEO in England.
Why are 11 SEO agencies listed here but not ranked?
6 of the 44 listed have not yet been assessed on the Agency List Score. A further 5 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the SEO in England cohort of 38 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.