Find the best SEO agencies in Cardiff. Compare top-rated SEO companies and choose the right partner for your business.
Cardiff, United Kingdom
Based in Cardiff, Appear Online is a small search marketing team serving businesses looking to grow visibility through organic and paid search channe…
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Cardiff, United Kingdom
Arlo & Ball is a South Wales-based digital marketing agency specialized in delivering comprehensive marketing solutions that drive measurable growth…
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Cardiff, United Kingdom
Working from an office at Clockwise, Brunel House in Cardiff, Ascend is a small team of strategists, designers and developers serving businesses acro…
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Cardiff, United Kingdom
Based in Cardiff, Balance Marketing Ltd works exclusively within financial services, positioning its focus on the regulatory, commercial, and custome…
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Cardiff, United Kingdom
Based in Cardiff, United Kingdom, BizBackerz is a virtual assistance agency founded in 2024 that works with businesses across the US and UK. Its clie…
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Cardiff, United Kingdom
A small marketing and digital studio based in Cardiff, burningred works with organisations across the UK rather than a single regional market. Its st…
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Cardiff, United Kingdom
Founded in 2010 by Chris Barnbrook, Cardiff Media is a small web design and SEO agency based in Cardiff, working with small and medium-sized business…
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Cardiff, United Kingdom
Cardiff Web Development is a Cardiff-based digital marketing agency specialized in bespoke website design and development services. With a strong com…
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Cardiff, United Kingdom
With offices in Cardiff and London, Carrick Creative works with businesses across a variety of sectors, offering creative design and marketing servic…
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Cardiff, United Kingdom
Based in Cardiff at The Old Church on Wells Street, with an additional address in Palo Alto, California, CREO has operated since 1999 as a brand, dig…
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Cardiff, United Kingdom
Based in Cardiff, Wales, Fratelli Agency is a small digital marketing team that works primarily with e-commerce brands looking to grow their online s…
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Cardiff, United Kingdom
Based in Cardiff, Wales, Gaze Technologies has operated since 2009 as a small IT and digital services provider, with a team of 1-10 people serving bu…
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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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Cardiff, United Kingdom
Based in Cardiff, Wales, Invincible Media works with local UK service businesses such as dentists, accountants, solicitors, plumbers, aesthetic clini…
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Cardiff, United Kingdom
Based in Cardiff, this small SEO team has worked with businesses across South Wales and further afield since 2017. Clients span local and ecommerce s…
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Cardiff, United Kingdom
Kagool operates from offices in Cardiff, London, Manchester, Leeds and Belfast, working as a digital experience and technology company for organisati…
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Cardiff, United Kingdom
Based in Cardiff, Wales, Levitate is a small digital agency, with a team of between one and ten people, working with businesses described as ambitiou…
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Cardiff, United Kingdom
A small marketing agency based in Cardiff, Wales, Marketing Purks works with businesses across sectors, including third-sector organisations, on mark…
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Cardiff, United Kingdom
Based in Cardiff, Mayura Creatives is a small web design and SEO agency also serving businesses in Bristol and the wider UK. Founded by Vikram, who h…
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Cardiff, United Kingdom
Based in Cardiff, Wales, New Media Ghost is a small team working with businesses and individual executives across a range of sectors, including techn…
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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.
2026-08-02 · 12 min read
How B2B search really works: bottom-of-funnel pages before blog volume, comparison and alternatives content, product-led assets, and attribution that survives a six-month cycle.
2026-08-02 · 11 min read
When template-generated pages work, when they get ignored, and how to build a programmatic set that survives quality updates: real data, real demand, real internal linking.
2026-08-02 · 11 min read
36 agencies are listed in Cardiff, 1% of the 3,907 recorded in United Kingdom — the country's 11th city by agency count. 36 publish a direct contact.
In Cardiff: SEO (100%), Web Design (67%), Social Media (44%), SEA/PPC (42%), Web Development (42%). An agency that ticks every box is rarely good at all of them: look at what it puts first.
Proximity genuinely matters in two cases: local SEO — Google Business profile, reviews, "near me" queries — and needing to meet in person. For an e-commerce or SaaS site targeting the whole country, an agency in Cardiff holds no structural advantage over one elsewhere in United Kingdom. The useful criterion stays experience with your type of site.
| Team size | Cardiff | Typically |
|---|---|---|
| 1-10 | 32 (89%) | Solo consultant or small studio. Direct access, limited capacity. |
| 11-50 | 4 (11%) | Separate roles: technical, content, link building. |
The 36 agencies on this page are ordered by how complete their listing is, never by payment: no position is for sale here. The information is collected from each agency's own website, checked as live. An agency can claim its listing to correct it, complete it, or connect its Search Console data.
What does SEO cost in Cardiff? Stated engagement floors here start at $1,000+. That figure says what size of engagement the agency takes on, not what yours will cost: the quote depends on the state of the site, the competition and the volume of content to produce.
Small local agency or large firm? 89% of agencies in Cardiff have fewer than ten people. At that size you talk directly to whoever does the work — the main advantage, and the main limit the day the engagement grows.
How do you check an agency before signing? Ask for a measured case on a site comparable to yours, with before and after figures. Check who will actually do the work. And get it in writing what stays yours when the contract ends: content, access, accounts.
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