The Best SEO Companies in the UK [2025 Rankings]

WebFX (the team behind SEO.com) is an award-winning SEO company and has been driving revenue for clients with data-driven SEO strategies since 1996. When you partner with WebFX, you’ll receive access to some of the best SEO services, including a custom SEO strategy tailored to your company’s unique goals, industry, target market, and more to ensure you drive revenue with search right from the start.

Reviews curated from Clutch, Google, and case studies.

“If a problem arises, we email our project manager, and they resolve it within the same day.” [Clutch]

“Their personnel are some of the most genuine, attentive & knowledgeable in the field.” [Google]

“The nice thing about working with WebFX has always been that they’ve pushed us to up the quality of everything that we’re doing.” [Case study]

The SEO Works is one of the leading search engine optimization and pay-per-click marketing firms in the United Kingdom. They pride themselves on their ability to deliver real, measurable results for businesses.

“We were particularly impressed with their dedication to our success.” [Case Study]

“They have built trust with us and we rely on them for consultation.” [Case Study]

“They’ve taken the time to understand the unique aspects of our business.” [Clutch]

“They always delivered above and beyond what was expected.” [Clutch]

GenieCrawl is a results-driven digital marketing agency focusing on driving revenue for clients with SEO and PPC strategies. With more than five years in the industry, GenieCrawl is dedicated to crafting an SEO strategy designed with your business needs in mind.

“They were very creative, and in the end, I felt they knew the project better than we did!” [Clutch]

“I have been working in e-commerce for many years and I can say first hand that Genie Crawl is hands down the best digital marketing agency we have ever contracted. We have seen really good results so far with our google ads, SEO and social media marketing campaigns. The team are easy to work with and I would have no problem in recommending them.” [Google]

“I would definitely recommend Genie Crawl to everyone. We are delighted with the results from their SEO work and they really have a great grasp of our website and what we do. Our rankings are finally on the first page of all the major SERPs. Thank you Genie Crawl!’ [Google]

Located in London, England, Bird Marketing has been helping clients achieve success online for over 10 years. Bird Marketing is considered to be one of the best SEO companies in the United Kingdom due to their in-depth research and development for every SEO strategy they develop for clients.

“Their commitment to our success felt personal, making the experience both reassuring and exceptional.” [Clutch]

“Their expertise and professionalism in understanding and meeting my specific requirements were exceptional.” [Clutch]

“The team at Bird Marketing has delivered absolutely fantastic results in a short space of time.” [Clutch]

Founded in 2012 and located in Guildford, England, Breakline is a top specialist SEO agency for UK businesses. At Breakline, SEO isn’t just one of the services they offer to clients — It’s the only service. This specialization allows them to focus their expertise and efforts solely on your SEO strategy.

“What is most impressive is that we actually get results; I was very skeptical.”[Clutch]

“I’ve been using Breakline’s SEO services for the past two months as part of a 3 month trial. We’ve seen a steady increase in our organic traffic.” [Google]

“Simply the best at what they do. So much money and time wasted elsewhere. Honest strategy, transparent monthly reports and always available to help.” [Google]

CEEK Marketing is a full-service digital agency dedicated to assisting brands to amplify their digital marketing presence. They have a passion for start-ups and helping big companies act like start-ups, with an outsourced marketing solution for businesses of all sizes.

“They’re a 360 agency that covers every aspect of marketing that we need to be done for our business.” [Clutch]

“We explained what we need for his project to be efficient and cost-effective, and CEEK heard that.” [Clutch]

“It was a pleasure working with CEEK, outstanding service delivered by true professionals!” [Google]

Task Virtual is an agency that wears many hats. They offer a variety of services, including standard marketing strategies like SEO, but also extending to call center services and back office outsourcing. Additionally, they have offices in locations around the globe, with one such location being London.

“Their overall performance was exceptional and exceeded our expectations.” [Clutch]

“They quickly adjusted priorities based on seasonal changes and new opportunities we identified.” [Clutch]

“Task Virtual had an exceptional ability to turn complex financial concepts into clear, engaging content.” [Clutch]

SQ Digital is a Google Premier Partner agency offering expertise in SEO, social media marketing, PPC advertising, web design, and more. Based in Lancaster with over two decades of experience, SQ Digital is considered to be one of the top SEO companies in the UK due their recognition with several industry awards and cost-effective solutions.

“We are right up there with the giants of the industry yet we are spending a fraction of the cost.” [Clutch]

“When we decided to re-brand our business we contacted SQ Digital who also built our new website. Tony and Damian have been brilliant in guiding us through the entire process and providing ongoing support with our Adwords campaign. I would highly recommended them.” [Google]

“We have worked with the team at SQ digtial for over 15 years now and find them to be exceptionally resourceful and creative as well as delivering to spec and on time. Happy to recommend for web and digitial marketing.” [Google]

Pearl Lemon is an award-winning agency with offices in both London and Manchester. They focus on offering lead generation and SEO services to business-to-business (B2B) companies, but their services include PPC, web design, public relations and more. Pearl Lemon’s reviews say they have great communication and offer regular updates.

“Pearl Lemon’s content team lived up to our expectations and those of our end client.” [Clutch]

“I’ve hired Pearl Lemon as lead generation consultants to help me grow my social media practices and honestly, I have to say – I’m really impressed.” [Case Study]

“All of their social media strategies were effective and maximized to boost our online presence at every turn.” [Clutch]

Loud Mouth Media has several different credentials to their name. For one thing, they’re a Google Premier Partner and Bing Partner. They have also won numerous awards for the quality of their services. Those services include SEO, PPC, social media management, and more.

“We would highly recommend this agency to anyone looking for a results-driven digital marketing partner.” [Clutch]

“The workflow between Loud Mouth Media and ourselves felt natural, like an extension of our team.” [Clutch]

“Their most impressive traits are their communication and ability to achieve the results we require.” [Clutch]

Promodo is an agency based in Lincoln that boasts an average 5-year customer lifespan. That’s not surprising, since their clients praise their professionalism and ability to handle tough tasks. Promodo is particularly good at on-page SEO and link building.

“Their ability to work with such a challenging product and still produce high-quality content was truly remarkable.” [Clutch]

“Their ability to keep everything on track while maintaining flexibility made working with them a seamless experience.” [Clutch]

“Promodo was outstanding professionally and in terms of their communication skills.” [Clutch]

Odyssey New Media is highly reputed for their industry knowledge and dedication to their clients. They offer a variety of marketing services in addition to SEO, including paid advertising and social media marketing. However, SEO is where they put the vast majority of their focus.

“The work that they carried out from start to finish was impeccable, and extremely professional.” [Google]

“Their attention to detail and industry knowledge is second to none.” [Clutch]

“The guys at Odyssey New Media are an absolute pleasure to work with.” [Google]

Ninja Promo has locations around the globe, including in the United States and Lithuania. But one of their main offices is in London, making them a good option for businesses in the United Kingdom. They specialize in working with B2B companies.

“Their reliability and attention to detail have made this partnership a truly positive experience.” [Clutch]

“They understood our vision from the start, pinpointing exactly what we wanted to achieve.” [Clutch]

“Their team is dedicated, creative, and always ahead of the trend.” [Google]

Seahawk Media offers a wide variety of digital services, from programming to IT consulting. But their SEO services alone make them an excellent partner, particularly when it comes to local SEO. And with their office in London, they’re a great choice for businesses in the United Kingdom.

“Seahawk Media was very patient, and I felt we could be direct with each other. We appreciated that.” [Clutch]

“The service the team delivers—whether for web development, maintenance, or site optimization—has been exceptional.” [Clutch]

“They did a great job of delivering outstanding work with a very cost-effective team.” [Clutch]

Fat Cow Media stands out for how well-loved they are by their clients. Multiple reviews note that they go the extra mile, and their communication skills are also praised. Content development and on-page SEO are their biggest strengths, but they can help you with a wide variety of SEO tactics.

“They are always willing to help and offer advice, often going the extra mile.” [Google]

“They were professional at all times and kept us updated throughout the project in a very timely manner.” [Google]

“Working with Fat Cow Media is worth every penny you spend. You get what you pay for, and they do a great job.” [Clutch]