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

26 Companies - Rankings updated: July 01, 2026

Each agency undergoes DesignRush evaluation for professional expertise and genuine client satisfaction to assist your search. Some featured placements are paid.

United Kingdom × Cardiff ×
  • Reclaim your smile online. Head45 Dental, the experts in dental SEO, PPC, and web design.

    Reclaim your smile online. Head45 Dental, the experts in dental SEO, PPC, and web design.

    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.  [... see all Head45 Dental reviews ]

    Top Services:

    • SEO
    • Advertising
    • Public Relations
    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.  [... view Burningred profile ]

    Top Services:

    • SEO
    • Web Design
    • Digital Marketing
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • 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.  [... view WCS Agency profile ]

    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.  [... view Re-Imagine profile ]

    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.  [... view Yard profile ]

    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  [... view True SEO Ltd profile ]

    Top Services:

    • SEO
    • Web Design
    • Social Media Marketing
    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  [... view Ubiquity Group profile ]

    Top Services:

    • SEO
    • Digital Marketing
    • Web Development
    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.  [... view Lunax Digital Marketing profile ]

    Top Services:

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

    Top Services:

    • SEO
    • Digital Marketing
    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  [... view Invincible Media profile ]

    Top Services:

    • SEO
    • Digital Marketing
    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.  [... view Ascend profile ]

    Top Services:

    • SEO
    • Digital Marketing
    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.  [... view BMD Marketing profile ]

    Top Services:

    • SEO
    • Digital Marketing
    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.  [... view OmniSEO profile ]

    Top Services:

    • SEO
    • Digital Marketing
    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  [... view DClickweb profile ]

    Top Services:

    • SEO
    • Digital Marketing
    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  [... view NiwTech profile ]

    Top Services:

    • SEO
    • Web Design
    • Digital Marketing
    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.  [... view Arlo & Ball Limited profile ]

    Top Services:

    • SEO
    • Web Design
    • PPC
    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  [... view Gomie Design profile ]

    Top Services:

    • SEO
    • Web Design
    • Social Media Marketing
    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.  [... view HQ SEO profile ]

    Top Services:

    • SEO
    • Digital Marketing
    • Content Marketing
    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  [... view Nocturnal Lab profile ]

    Top Services:

    • SEO
    • Web Design
    • Digital Marketing
    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.  [... view Balance Marketing Ltd profile ]

    Top Services:

    • SEO
    • Public Relations
    • Digital Marketing
    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.  [... view Freshwater profile ]

    Top Services:

    • SEO
    • Public Relations
    • Digital Marketing
    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.  [... view Digital Virtue profile ]

    Top Services:

    • SEO
    • Web Design
    • Digital Marketing
    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.  [... view The Designer Cardiff profile ]

    Top Services:

    • SEO
    • Web Design
    Location
    Cardiff, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/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  [... view Design Ocean profile ]

    Top Services:

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

About The Author and Expert Reviewer

Natasa Glikman is an experienced editor and content writer with over 10 years of experience in writing, editing, and translating articles across various topics, with a strong focus on marketing and advertising. At DesignRush, Natasa currently works as an editor, where she refines and enhances B2B content to ensure accuracy, clarity, and consistency across agency profiles and industry reports.

Robin Fishley is a digital professional with over 20 years of experience in programming, website architecture, and data optimization. Twice honored as Most Innovative Employee at his previous agency, he excelled in leadership roles across SEO, research, analytics, and strategy. At Saatchi & Saatchi, where he was the Director of Search and Data, he developed a successful Big Data analysis tool and provided expert consulting for renowned clients like P&G, Toyota, and VISA. A valuable asset to DesignRush, he used his technical background to drive success for the company's digital initiatives.