SEO agencies in Cardiff.
SEO is the discipline of earning the right traffic from Google for free, plus - increasingly in 2026 - being chosen, cited, and summarised by AI answer engines like ChatGPT, Perplexity, and Google's AI Overviews. Done well it compounds. Done poorly it's expensive theatre. This page shows every agency on AgencyIndex offering seo in Cardiff.

New Media Ghost, a customised digital marketing agency based in Cardiff, excels in curating robust online presence for both businesses and individuals. As specialists in crafting and engaging with digital audiences, we distinguish ourselves through our unwavering commitment to discretion and tailoring unique strategies. We guarantee your content and social media resonate with your brand's voice, s

Patter, a UK-based marketing agency situated in Abercynon, distinguishes itself with a people-centric methodology. We specialise in providing high-yielding websites, strategic paid advertising, and smart email marketing solutions to fuel genuine, long-term growth for businesses. Our team, composed of leading strategic minds and innovative creatives, is dedicated to securing more customers and boos

Pobl Tech, based in Cardiff, South Wales, introduces inventive approaches that tackle your obstacles through strategic and imaginative thought. As a full-service digital agency, Pobl Tech delivers web design, branding, and digital marketing solutions targeted at propelling your organisation forward. Proud to be a bilingual agency in Wales, Pobl Tech excels in formulating multilingual communicati

Cavefish, a pioneering AI-centric agency situated in Cardiff, UK, distinguishes itself by crafting bespoke AI solutions that blend effortlessly into business operations, bolstering productivity and fuelling innovation via their exclusive EchoDepth framework. Renowned for their thorough services such as AI strategic planning, customised training, and swift proof-of-concept initiatives, Cavefish has

Mamba Marketing, a UK-based, award-winning full-service marketing agency, boasts additional branches in Dubai and the US. Distinguished by an extensive suite of services, Mamba Marketing specialises in B2C and B2B solutions, e-commerce strategies, lead generation, and content initiatives, all tailored to drive short-term victories and sustainable brand expansion. The agency's unique selling propos

Focusing on several crucial aspects, Odyssey specialises in: - Driving a significant increase in sales via your website - Bolstering customer loyalty on your online platform - Escalating user interaction - Streamlining website functionality and navigability - Enhancing the total user experience on your site - Integrating your brand seamlessly into your digital footprint - Overseeing website

Beyond Marketing, a Cardiff-based strategic marketing agency, distinguishes itself through its dedication to developing purpose-driven marketing strategies. These strategies unearth unseen challenges and foster authentic relationships, guaranteeing sustainable growth and beneficial outcomes for our clients. Our offerings encompass strategic insights, persuasive communication, and the inclusion of

Alytix Marketing, a UK-based marketing and analytics firm in Cardiff, excels in converting intricate data into practical insights to boost marketing and sales results. Our distinct focus is on offering a comprehensive suite of services, from managing digital campaigns to crafting analytics strategies. We distinguish ourselves through our 'done-for-you' analytics solutions and dynamic data visualis

Established in Cardiff, Wales, Martin Hopkins Partnership Ltd. is a leading brand, design, and digital agency, renowned for crafting distinctive brands exuding vibrancy and dynamism. Our unique selling proposition lies in our determination to create brands with a distinctive tone, coupled with our robust emphasis on superior user experience and fruitful customer interactions. With a legacy dating

WCS Agency, a dynamic marketing and PR firm located in Cardiff, embodies the fusion of creativity and strategy, deeply rooted in Welsh heritage yet extending its influence globally. This agency distinguishes itself with a steadfast team of professionals, leveraging cutting-edge tools to deliver targeted, strategic, and impactful marketing outcomes. WCS Agency's commitment goes beyond superficial m

Caffeine Marketing, a renowned full-service digital marketing firm based in Cardiff, provides comprehensive UK-wide coverage. Our unique selling proposition is our practical approach to facilitating remarkable online triumphs through bespoke digital marketing strategies, tailored to every client's distinct requirements. Since our inception in 2011, we've maintained a consistent performance record.
AgencyIndex tracks 11 seo agencies in Cardiff. The list above is filtered to that intersection and ordered with verified and featured listings first.
For the wider editor's view on seo agencies in the UK, see the seo service brief. For context on Cardiff's marketing cluster, see the Cardiff location brief. The pricing, timeline and red-flag notes below apply to seo as a discipline; they do not change materially in Cardiff.
Boutique / freelance £500-3,000 · Mid-market £1,500-7,500 · Network £7,500-20,000+. One-off audits £1,500-10,000.
1-3mo technical foundations · 3-6mo ranking and traffic gains · 6-12mo+ revenue compounding.
- · Guaranteed rankings or 'top 3 in 30 days' promises
- · Pure performance-based pricing (misaligns incentives)
- · Aggressive link building or 'private networks' (PBNs)
- · Vague reporting that won't connect to revenue
- · No request for Search Console + analytics access
Other services in Cardiff.
What brands ask about seo agencies.
The 5 questions our editors get most often, answered honestly. These apply to seo as a discipline regardless of city.