Top 100 SEO Companies in Cardiff
The Best of December 2025Looking for a top SEO firm in Cardiff?
Compare top-performing SEO agencies to see which may be the best fit for your business goals. Whether you're seeking to improve your ranking in search engine results pages, boost website traffic, or show up in local search results, investing in SEO is important for business growth.
To assist you in your search for a partner, we’ve compiled this list of the top SEO companies in Cardiff. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Cardiff SEO Firms
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$1,000+10 - 49 employeesNew York, NYSEO company NuStream is in New York, New York; Philadelphia, Pennsylvania and Allentown, Pennsylvania. They provide Search Engine Optimization, Web Design, Digital Strategy, and Video Production and were established in 2010.Read More
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1$1,000+10 - 49 employeesCardiff, WalesRead More
Pinnacle Internet Marketing is an SEO agency that was founded in 2007. Their office in Cardiff, Wales, has 13 employees who specialise in increasing business revenue and profits through ROI-focused SEO services, PPC advertising, and content marketing. They work primarily for small businesses and midmarket companies, and help grow these businesses through digital innovation.
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Martyn Prowel SolicitorsIndustries
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2$1,000+2 - 9 employeesCardiff, WalesRead More
SEO agency Appear Online was launched in 2022. Their small team is in Cardiff, United Kingdom. Appear Online focuses on search engine optimization, pay per click, web design, and web development.
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3$1,000+50 - 249 employeesCardiff, WalesIn Edinburgh, Scotland and Cardiff, Wales, Yard is a SEO services firm. Launched in 2006, the team focuses on Search Engine Optimization and Digital Strategy.Read More
Clients
Sainsbury's BankIndustries
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4$1,000+2 - 9 employeesCardiff, WalesRead More
Cardiff Graphic Designer is a graphic design studio based in Cardiff, the United Kingdom with a team of fewer than 10 members. Since 2016, they have offered their expertise in web design, graphic design, and SEO for small businesses in the fields of e-commerce and business services.
Clients
Cloves Dental CareIndustries
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5$10,000+10 - 49 employeesCardiff , WalesCREO, a small branding company, is in Cardiff , Wales. The team specializes in Branding and Digital Strategy.Read More
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6$1,000+10 - 49 employeesCardiff, WalesGaze Technologies is a data analytics company established in 2009. They are based in Cardiff, Wales and Lahore, Pakistan and have a small team. Their services include BI & big data consulting & SI, Search Engine Optimization, cloud consulting & SI, ERP consulting and SI, and more.Read More
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7$1,000+2 - 9 employeesCardiff, WalesCardiff SEO is a SEO agency. In Cardiff, Wales, the company offers Search Engine Optimization and Content Marketing.Read More
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8Undisclosed2 - 9 employeesCardiff, WalesRead More
Levitate is a small web design company in Cardiff, United Kingdom. Launched in 2017, the team focuses on web design, search engine optimization, and other digital marketing.
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9$5,000+10 - 49 employeesCardiff, WalesStation Rd Marketing is a SEO agency. Located in Cardiff, Wales, the team focuses on Search Engine Optimization and Ecommerce Marketing.Read More
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10$1,000+2 - 9 employeesNewport, WalesDouble U Digital, a SEO agency and web design company, was established in 2020. The team focuses on Search Engine Optimization and Web Design.Read More
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11$1,000+2 - 9 employeesCardiff, WalesRead More
New Media Ghost is a digital strategy company. They are based in Cardiff, United Kingdom and have a small team. Their services include digital strategy, social media marketing, content marketing, search engine optimization, and more.
Industries
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12$1,000+2 - 9 employeesCardiff, WalesFratelli Agency is a SEO services firm. They focus on Search Engine Optimization and Social Media Marketing and were founded in 2019.Read More
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13Undisclosed50 - 249 employeesCardiff, WalesSEO company Invincible Media | SEO & Web Design Service Cardiff focuses on Search Engine Optimization and Web Design. They were established in 2016.Read More
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14$1,000+2 - 9 employeesCardiff, WalesEstablished in 2023, Cavefish is a SEO services firm and AI Consulting company. The agency offers Search Engine Optimization and AI Consulting, and is small.Read More
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15$1,000+2 - 9 employeesPontypridd, Cardiff, WalesM.G.R Automations & Marketing is an Email Marketing and SEO agency. They are in Pontypridd, Cardiff, Wales and have small team. They provide Email Marketing and Search Engine Optimization.Read More
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16Undisclosed2 - 9 employeesCardiff, WalesRed King Digital is a SEO agency established in 2016. Headquartered in Cardiff, Wales, the team provides Search Engine Optimization.Read More
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17Undisclosed2 - 9 employeesCardiff, WalesGhost Marketing is a SEO services firm. Headquartered in Cardiff, Wales, their small team provides Search Engine Optimization. The company was launched in 2014.Read More
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18Undisclosed2 - 9 employeesCardiff, South Wales , WalesRyan C Walsh Online Marketing is a SEO company. They specialize in Search Engine Optimization and are in Cardiff, South Wales , Wales.Read More
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19Undisclosed10 - 49 employeesBrigantine Place, WalesSmall web design agency UpriseVSI, is in Brigantine Place, Wales. Their services include Web Design and Digital Strategy.Read More
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20$1,000+Freelancer employeesPontprennau, WalesRead More
SEO company Andrew Weston - SEO Freelancer was established in 2020. They are in Pontprennau, United Kingdom and have a small team. Their services include search engine optimization, content marketing, digital strategy, email marketing, and more.
Industries
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21$1,000+Freelancer employeesCardiff, WalesHinch Digital, a SEO services firm, was founded in 2021. Their small team is based in Cardiff, Wales and provides Search Engine Optimization and Pay Per Click.Read More
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22Undisclosed2 - 9 employeesNewport, WalesFounded in 2025, Time to Scale is a small SEO company. Their team offers Search Engine Optimization and Web Design.Read More
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23$1,000+2 - 9 employeesCardiff, WalesPixafusion Marketing Agency is a web design agency located in Cardiff, Wales. The team provides Web Design and Advertising.Read More
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24$5,000+10 - 49 employeesLlanishen, WalesLiberty Marketing, a SEO agency, was launched in 2008. The firm specializes in Search Engine Optimization and Pay Per Click.Read More
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25$1,000+2 - 9 employeesCardiff, WalesWalsh & Partners is a Content Marketing company established in 2007. The company offers Content Marketing and Search Engine Optimization.Read More
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26Undisclosed2 - 9 employeesPontprennau, WalesSEO agency Top Space Seo is headquartered in Pontprennau, Wales. They offer Search Engine Optimization and Content Marketing and were founded in 2010.Read More
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27Undisclosed2 - 9 employeesCardiff, WalesRead More
Nocturnal Lab is a web design and SEO agency from Cardiff, U.K. With about five employees on board, they offer web design, SEO, and e-commerce development to small business clients across the advertising, arts and entertainment, business, education, and financial industries, among others.
Clients
DBBCIndustries
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28Undisclosed2 - 9 employeesCwmbran, WalesOzum Ltd is an user experience design agency founded in 2006. Their team offers UX/UI Design and E-Commerce Development.Read More
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29Undisclosed10 - 49 employeesCardiff, WalesPXA Marketing Limited, a small social media marketing agency, is headquartered in Cardiff, Wales. Their services include Social Media Marketing and Search Engine Optimization.Read More
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30$10,000+2 - 9 employeesTassagh, WalesMake It Sticky is a SEO company. Their small team of employees is headquartered in Tassagh, Wales. Their team specializes in Search Engine Optimization and Web Design.Read More
Industries
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