Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Cardiff, United Kingdom
Based in Cardiff, Hinch Digital trades online as Appear Online and works as a search marketing partner for businesses across various industries, rang…
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Edgware, United Kingdom
Based in Edgware, England, Hirnaj works with a small team on web, software and digital marketing projects for businesses ranging from startups buildi…
View ProfileManchester, United Kingdom
Hive Manchester is an advertising and marketing agency based in MediaCityUK. They specialize in providing original designs and creative solutions tai…
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Brighton, United Kingdom
Based in Brighton, Hive19 is a small specialist agency working with brands in sectors such as Fintech and SaaS, according to client testimonials on i…
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London, United Kingdom
Hiyield is a small London-based digital agency working with startup founders, marketing managers, creative agencies, charities and non-profits, and a…
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Birmingham, United Kingdom
Based in Birmingham, HK Web Solutions is a small web design and development company working with businesses across the UK and internationally. Its te…
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Barnsley, United Kingdom
Based in Barnsley, South Yorkshire, HMA Digital Marketing is a small team working with organisations in the health, science and technology sectors, i…
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LONDON, United Kingdom
Based in London, HMDG works specifically with healthcare businesses, focusing on physiotherapists, chiropractors and musculoskeletal (MSK) clinics. T…
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Pencoed, United Kingdom
Based in Pencoed, HML Marketing works with local businesses across Cardiff, including areas such as Canton, Cathays, Roath, Pontcanna, and Cardiff Ba…
View ProfileUnited Kingdom
Based in Burntwood, Staffordshire, Holistic Creations is a small design and digital studio offering marketing solutions aimed at businesses seeking a…
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Beverley, United Kingdom
Based in Beverley, East Yorkshire, Holler Marketing Ltd specialises in marketing for the food and drink sector, working across both small independent…
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London, United Kingdom
Based in London, HollowCore is a small team that pairs customer service staff in the UK and US with developers, designers and other specialists based…
View ProfileManchester, United Kingdom
Registered in Manchester, England, but staffed by a fully remote team spread across the UK and abroad, Honcho works as a small specialist studio rath…
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North Shields, United Kingdom
Based in North Shields near Newcastle, Hone Digital is a small SEO and AI search consultancy founded in 2018, working with businesses targeting both…
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Cambridge, United Kingdom
Based in Cambridge, this agency works with a mix of institutions, heritage brands and start-ups across the region, extending its reach into Norwich,…
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Lancashire, United Kingdom
Based in Thornton-Cleveleys, Lancashire, Hooke Design & Marketing Ltd has operated since 2005 as a small, multi-disciplined creative design and marke…
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Edinburgh, United Kingdom
Based in Edinburgh, Scotland, Hookson is a small digital product agency working with a team of between one and ten people. Its portfolio points to cl…
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Stafford, United Kingdom
Based in Staffordshire, this small creative agency (a team of ten or fewer) works with businesses across the Midlands, London and the wider UK. Rathe…
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Watford, United Kingdom
Based in Watford, Horizon Services works with businesses across the UK looking for web design, development and digital marketing support. The company…
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Berkshire, United Kingdom
Based in Slough, Berkshire, Horizon Networks Limited operates as a small team combining IT infrastructure services with digital marketing, serving bu…
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The complete migration playbook: what to freeze before launch, how to build a redirect map that actually holds, what to test on the staging site, and how to read the first eight weeks after go-live.
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This directory lists 3,907 agencies in United Kingdom, spread across 918 cities. 3,443 of them publish a direct contact (email or phone). The best-represented cities are London (722), UK (191), Manchester (123).
| Team size | United Kingdom | What it means |
|---|---|---|
| 1-10 | 2,948 (75%) | One contact, often the founder. Responsive, limited capacity. |
| 11-50 | 429 (11%) | Specialists per discipline. The most common trade-off. |
| 51-200 | 10 (0%) | Several teams, formal process, higher budgets. |
| 200+ | 22 (1%) | International structure, enterprise accounts. |
Across the 3,907 agencies in this country: SEO (94%), Web Design (65%), SEA/PPC (50%), Social Media (47%), Content Marketing (44%), Web Development (38%). SEO leads with 3,655 agencies.
Stated engagement floors in United Kingdom range from $1,000+ to $100,000+. The most common is $1,000+ (953 agencies). That figure is an entry floor, not a price: it says what size of engagement the agency will take on, which stays the fastest filter for ruling out the ones that do not match your scale.
The 3,907 agencies on this page are ordered by how complete their listing is, not by payment: nobody buys a position here. The information comes from each agency's own website, checked as live. An agency can claim its listing to correct or complete it.
Should you pick an agency based in United Kingdom? Proximity matters most for local SEO and the language your content is written in. Here, English and Spanish are the most declared working languages. For an international site, where the agency sits matters less than its experience in your market.
Small or large agency? 75% of agencies here have fewer than ten people, against 32 above fifty. A small team means direct access to the people doing the work; a large one absorbs heavier programmes without depending on one person.
What to check before signing? Ask for measured results on a site comparable to yours, who actually does the work, and what happens when the contract ends: deliverables and access must stay yours. An agency that will not show its method is selling a black box.
