Discover the leading SEO agencies in Cardiff as ranked by our team of industry experts. Choose the right agency for your business using the filter to browse by average rates, team size, client reviews and more.

Best Cardiff SEO Company Rankings

27 Companies - Rankings updated: August 15, 2026

DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.

United Kingdom × Cardiff ×
  • Every Smile Tells A Story.

    Every Smile Tells A Story.

    At Head45 Dental, based in the UK, we're dedicated to dental SEO, PPC, and web design. We pride ourselves on clarity, trust, and delivering exceptional results. Through data-driven strategies, creativity, and an unwavering commitment to excellence, we redefine your online dental presence...

    Top Services:

    • Digital Marketing
    • SEO
    • Content Marketing
    • Advertising
    • PPC
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Portfolios Count
    2 Projects Listed
  • Welcome to burningred - marketers and makers with soul and vision.

    Welcome to burningred - marketers and makers with soul and vision.

    We’re a digital marketing agency with soul and vision and we fuel brands.With over 15 years working internationally in the creative marketing industry from our Cardiff base, we specialise in bringing brands to life through content, digital marketing, and online campaigns and websites...

    Top Services:

    • SEO
    • Digital Marketing
    • Content Marketing
    • eCommerce
    • PPC
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • Red Lion Design are a team of Web Designers and Search Engine Optimisation specialists. We cater for web clients all over the world not just the UK...

    Top Services:

    • SEO
    • Digital Marketing
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • Cardiff-bred WCS is your all-in-one digital partner. We're a full scale marketing agency specialising in social media management, branding, PR, and SEO...

    Top Services:

    • SEO
    • Digital Marketing
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • We are Re-Imagine. A digital marketing agency in Cardiff, serving clients worldwide. Your products and services are worthy of attention. We bring content marketing and digital PR strategies together with extensive SEO skills to deliver an unrivalled agency experience...

    Top Services:

    • SEO
    • Digital Marketing
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • Data driven digital across channels

    Data driven digital across channels

    Yard is leading the way for a new generation of digital marketing. Our approach is rooted in rigorous data analysis and impressive return on investment. What sets us apart is our ability to help businesses achieve greater success with greater efficiency...

    Top Services:

    • SEO
    • Content Marketing
    • Digital Strategy
    Location
    Cardiff, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $1,000 - $10,000
  • Offically known as - True SEO Consultants Ltd

    Offically known as - True SEO Consultants Ltd

    True SEO Consultants Ltd, often known as 'True SEO', is a Cardiff-based semantic SEO consultancy, founded and led by Mohammad A Mahmud & Julie Williams...

    Top Services:

    • SEO
    • Social Media Marketing
    • Web Design
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $90/hr
    Minimal Budget
    $1,000 - $10,000
  • A fully integrated creative communications agency creating and developing campaigns across a variety of sectors including, but not limited to, sport, education and food.Our creative execution and advertising strategies are entirely bespoke ensuring the right message is being delivered to right people, at the...

    Top Services:

    • SEO
    • Video Production
    • Web Development
    • Logo Design
    • Digital Marketing
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $10,000 - $25,000
  • Starting, growing and scaling stand-out businesses

    Starting, growing and scaling stand-out businesses

    Lunax is a luxury digital marketing agency based in the centre of Cardiff, Wales. We create, develop and run creative, integrated marketing communication campaigns to build brands and drive sales or enquiries...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • Levitate is a creative website consultancy operating worldwide. We specialise in Design, SEO & Digital Marketing...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • Youre here to grow your business, and were here to help make it happen. We know how time-consuming it is to make DIY websites or flick pound notes at Google or Facebook ads in the hope that you'll see a return. In an industry full of fads and hyped-up influencers we bring real results and affordability to the...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • SEO cant be bought, but it can be earned. At Ascend, we plan for the future, and through in-depth analysis we aim to help your business flourish thanks to our forward-thinking and proactive approach to help you grow to new heights online...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • BMD Marketing are on a mission to help businesses to #BeMoreDigital. We offer services from content marketing, social media management, graphic design, branding and website design...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • An SEO Team Who Knows What They're Doing.

    An SEO Team Who Knows What They're Doing.

    omniSEO is a leading Cardiff SEO agency. Since we established in 2017, we have had the honour of helping to develop some incredible businesses from our office in Cardiff by delivering measurable and meaningful results. Today, we have never been more excited about improving lives through business...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • We are a marketing agency based in Cardiff providing a bespoke marketing solution that will give the best support aligned with your business goals...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • Our complete range of Digital Marketing Services helps you Drive More Traffic, Improve Conversions, Generate High-Quality Leads, and Earn Higher Revenues through your website. Our varied experience allows us to fulfil requirements from all kinds of clients, from smaller industries to big multinational...

    Top Services:

    • Digital Marketing
    • SEO
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • Digital Marketing Agency, Information Technology Consulting Company

    Digital Marketing Agency, Information Technology Consulting Company

    Digital Marketing Agency, Information Technology Consulting Company...

    Top Services:

    • Web Design
    • Logo Design
    • Social Media Marketing
    • SEO
    • Digital Marketing
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $65/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
  • Marketing support that scales with your business.

    Marketing support that scales with your business.

    Arlo & Ball is a dynamic digital marketing agency that blends strategy, creativity, and data-driven insights to elevate brands. From branding and design to content and campaigns, we craft tailored solutions that make an impact...

    Top Services:

    • Logo Design
    • Web Design
    • SEO
    • PPC
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Portfolios Count
    1 Project Listed
  • GOMIE DESIGN IS A CREATIVE DIGITAL DESIGN AGENCY BASED IN BARRY AND CARDIFF, UK. WE SPECIALISE IN WEB AND MOBILE APP DESIGN, LOGOS AND BRANDING, EDITORIAL DESIGN, ADVERTISING, MOTION VIDEO AND GRAPHIC DESIGN FOR PRINT.WE WANT TO MAKE A MEANINGFUL IMPACT ON YOUR BUSINESS AND WE'RE A TEAM WHO ARE INCREDIBLY...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Content Marketing
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • For Better Organic Traffic

    For Better Organic Traffic

    HQ SEO is a digital marketing powerhouse, setting UK-based SaaS, ecommerce and B2B businesses on the path to long-term success. With expertise in search engine optimization and innovative inbound tactics, we provide clients with unbeatable organic rankings for sustainable growth...

    Top Services:

    • Email Marketing
    • Content Marketing
    • SEO
    • Digital Marketing
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    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $1,000 - $10,000
  • Elevating Brands with Creativity

    Elevating Brands with Creativity

    Nocturnal Lab is a creative force to be reckoned with, taking the Cardiff digital design scene by storm. Our specialized team weaves marketing strategy into every project for an all-encompassing online presence that speaks volumes about our clients' brands and identities. From crafting logos for social media...

    Top Services:

    • Digital Marketing
    • CRO
    • SEO
    • eCommerce Development
    • Web Design
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
  • Bring Balance to Your Marketing.

    Bring Balance to Your Marketing.

    We help financial services brands grow through industry specific expertise, insights, strategy and unparalleled digital marketing campaign performance...

    Top Services:

    • Digital Marketing
    • PPC
    • SEO
    • Social Media Marketing
    • Digital Strategy
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    100 - 249
  • Freshwater is a leading communications agency. Weve been helping clients across the UK to achieve their objectives for more than 20 years. Strategically. Creatively. And with enthusiasm and expertise...

    Top Services:

    • Digital Marketing
    • Video Production
    • Public Relations
    • SEO
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    100 - 249
  • Web Experts

    Web Experts

    We deliver brand, website design and digital marketing services to deliver measurable results and ROI. We’ll deliver you profitable sales by understanding your business needs, your customers and how they interact in today’s digital world.Our approach is straight talking, forward thinking...

    Top Services:

    • eCommerce
    • Email Marketing
    • SEO
    • PPC
    • Digital Marketing
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Creating Engaging Designs & Brands

    Creating Engaging Designs & Brands

    We offer stunning and captivating graphic design, web design, and app design solutions at The Web Designer Cardiff, a small but highly experienced graphic design group based in Cardiff...

    Top Services:

    • Package Design
    • Graphic Design
    • Print Design
    • SEO
    • Web Design
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • Idea Innovate Grow

    Idea Innovate Grow

    Leading AI-Driven Digital Transformation Company for Next-Gen IT Services...

    Top Services:

    • Web Design
    • eCommerce Development
    • Digital Marketing
    • AI Development
    • Mobile App Development
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
  • A Brand Transforming Agency

    A Brand Transforming Agency

    Design Ocean specializes in crafting dynamic and engaging creative communications to help clients stand out. Our team of experts provides sound strategic advice and innovative visuals including web design, mobile apps, brochures and 3D visualization that capture the essence of a brand identity. We also offer...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Digital Marketing
    • SEO
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $1,000 - $10,000

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