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Choosing the right SEO agency is a big decision – and rightly so. Your online presence is on the line, so you need an agency that doesn’t just talk the talk but delivers real, measurable results.
In the competitive world of SEO, where every agency claims to be the best, finding the right partner to match your goals can be a challenge. Whether you’re an ambitious start-up or a well-established enterprise, you deserve an SEO agency that gets your vision and has the expertise to bring it to life.
The answer? Knowing how to spot the agencies that truly stand out from the crowd.
To make your search easier, we’ve curated a list of the best SEO agencies in the UK to help you cut through the noise and find your perfect fit. From improving search rankings to driving organic traffic, these agencies are proven experts who don’t just talk a good game – they deliver results you can trust. With our guide in hand, you’ll be ready to kickstart your SEO journey in 2025 and achieve long-term success.
TOP 10 SEO AGENCIES
1. FOUND
Found is a multi-award-winning SEO agency with offices in London and New York, turning organic search into a powerful, dynamic force across every searchable platform. In a world where SEO has evolved dramatically, getting it right has never been more crucial – no matter the platform. From Google to TikTok, Amazon to Instagram, and even AI-driven search, the way we search is constantly expanding.
At the heart of Found’s success is their trademarked Everysearch™ approach – a game-changing method that tackles this seismic shift in search. By redefining how brands navigate the ever-changing organic search landscape, Found empowers businesses to thrive in a fast-paced, competitive world brimming with opportunity.
Found’s strong partnerships with leading companies like Google and Microsoft give them exclusive early access to the latest innovations and insights. This means their clients stay ahead of the curve, with strategies and campaigns that lead the way in an ever-evolving industry.
Clients: Puma, Peacocks, Toolstation, ManyPets, DigitalRealty, TrustPayments.
Prices*: From $1,000+ minimum project size.
Reviews: 4.8 Google
2. CEEK
CEEK is an SEO agency based in London, Brighton and Manchester giving clients the edge they need to cut through the noise in today’s competitive digital landscape.
Their passionate search team drives results with a forward-thinking approach, delivering outstanding results for a global client base. SEO is at the heart of everything they do, with deep expertise in Google and other major search engines. Always ahead of the curve, CEEK adapts to the ever-changing world of search algorithms, ensuring consistent results. With a unique blend of in-house digital PR, technical SEO, and content marketing specialists, every campaign is designed not just to boost rankings but to generate real revenue and strengthen your brand’s authority.
Clients: Deliciously Ella, Mogu Mogu, Lavazza, The MAINE Ibiza, Disney.
Prices: From $1,000+ minimum project size.
Reviews: 4.8 Google
3. Propeller
Propeller helps ambitious brands in the hospitality, food & drink, retail, and lifestyle sectors thrive. With experience spanning two decades, Propeller has established a strong presence in London, Manchester and New York.
Propeller’s SEO experts excel at navigating ever-changing algorithms and shifting user behaviour. They craft precise, data-led strategies to ensure businesses are seen by the right audience at the right time. With their SEO services, Propeller drives meaningful traffic and ensures brands appear exactly where and when their customers need them. Their comprehensive SEO offerings include on-page optimisation, technical SEO, keyword research & insights and local SEO.
Clients: Twinings, Zizzi, Pizza Pilgrims, Young’s, Sushi Samba, Kellogg’s.
Prices: From $10,000+ minimum project size.
Reviews: 4.9 Google
4. Re:signal
Re:signal is a specialist ecommerce SEO agency making waves since 2012. With a team of 20+ experts based across the UK, Europe, US and a central hub in London, Re:signal delivers bespoke SEO solutions designed to drive results.
Their approach is agile and efficient – think traditional agency expertise but with a leaner, more focused structure. Each client benefits from a handpicked team tailored to meet specific performance objectives. Re:signal hones in on the core drivers of organic growth – technical SEO, on-site content and link reputation – to consistently elevate performance.
With over 80 awards to their name, including wins at the UK, European and Global Search Awards (2024), Re:signal has cemented its reputation as an industry leader.
Clients: ASICS, FatFace, Expedia, Under Armour, Reformation, OKA.
Prices: From $5,000+ minimum project size.
Reviews: 3.4 Google
5. Brave Bison
A different kind of beast: Brave Bison is a media, marketing and technology company built for the modern digital era. They connect experiences, creators and conversions to navigate complexity and drive sustainable growth for their clients.
With over 20 years of expertise in growing businesses through digital media, Brave Bison helps brands harness the right data, partnerships and technology to transform complexity into opportunity and accelerate online growth.
From migration support and content strategy to taxonomy reviews and troubleshooting, Brave Bison’s award-winning SEO team operates at the cutting edge of innovation, creating tailored strategies designed for outstanding performance and sustainable value.
Clients: New Balance, Currys, Furniture Village, ghd, KFC, Jolly.
Prices: $75,000+ minimum project size.
Reviews: 5 Google
6. Impression
Impression is a performance marketing agency redefining excellence through its people, performance and technology, with offices in Manchester, Nottingham, London and New York.
Their approach challenges the status quo, providing clients with access to creative problem-solvers backed by a proven experimentation process and proprietary technology that maximises marketing effectiveness. As an experienced SEO agency, they stay ahead of the ever-evolving search landscape through relentless experimentation, innovative proprietary tools, and insights gained from every Google Algorithm Update. Their SEO strategies are built for the long haul, focusing on ROI-driven results that deliver meaningful business outcomes. Success isn’t just about better rankings – it’s about driving measurable impact through increased traffic, higher conversions, and growing revenue. With a proven track record, they are dedicated to delivering sustained growth and helping brands thrive in the competitive digital world.
Clients: Clarins, Topps Tiles, Specsavers, Norse, Funky Pigeon.
Prices: $25,000+ minimum project size. For retained services, their monthly management fee starts at £5,000.
Reviews: 4.9 Google
7. iCrossing
iCrossing is a global digital marketing agency that blends cutting-edge talent with advanced technology to help world-class brands connect with their customers. Their approach combines best-in-class services – spanning paid search, SEO, web development, social media, mobile, research, and analytics – into powerful, integrated campaigns that engage audiences and deliver measurable ROI.
At the heart of iCrossing’s approach lies data and SEO – essential tools for shaping strategies, crafting content, and optimising user journeys. As pioneers in SEO, SEM and digital media, iCrossing stays ahead of emerging trends and technology to create seamless digital experiences, elevate performance and accelerate growth.
Clients: Coca-Cola Company, FedEx, The LEGO Group, LG Electronics.
Prices: $10,000+ minimum project size.
Reviews: 4.4 Google
8. iProspect
iProspect is a global, digital-first media agency redefining performance-driven brand building. Their unique blend of media strategy, digital storytelling, and specialised audience insights sets a new benchmark for delivering accelerated growth to some of the world’s most iconic brands.
For iProspect, SEO isn’t just a way to free up PPC budgets – it’s a far greater opportunity. When executed effectively, SEO can achieve a range of objectives and even unlock entirely new categories of traffic for a brand’s website. iProspect’s approach involves auditing the competitive landscape, crafting compelling content, leveraging the right technology and collaborating closely with clients’ development teams to maximise visibility. Their expertise extends beyond traditional search engines to platforms like YouTube, Pinterest and Amazon, ensuring brands are found wherever their audiences are searching.
Clients: Kering, Carlsberg, Ikea, Hilton, L’Oréal, Pandora, Hugo Boss, Red Bull, LinkedIn.
Prices: Undisclosed
Reviews: 4.7 Google
9. Croud
Croud is a global, full-service digital marketing agency trusted by some of the world’s leading brands. By seamlessly connecting data, technology and creativity, Croud crafts strategies designed for sustainable growth and immediate business impact. Their unique approach, powered by the proprietary ‘Croud Control’ platform, leverages a global network of 2,400 digital experts – offering the scale of a holding company with the precision of a specialist.
Croud takes an evidence-based approach to SEO, analysing and optimising the many factors that influence organic performance to deliver transformative results. With their proprietary tech, SEO.max, they develop data-driven organic strategies and measure their impact, ensuring every element works to drive growth and success.
Clients: Vans, IWG, Audible, The North Face, AllSaints, Honda.
Prices: $10,000+ minimum project size.
Reviews: 4.8 Google
10. M3
M3 is a marketing agency designed for today’s fast-moving digital landscape. With over 25 years of experience, they operate under their proprietary Modern Marketing Model, blending strategy and tactics to deliver tailored solutions for every client.
Specialising in ‘digital first’ approaches, M3 crafts strategies that combine deep SEO expertise with clients’ industry knowledge. Their goal is to showcase the value of your business to both Google and your future customers. Navigating ever-changing SERPs is challenging, but that’s where M3 excels. They stay ahead of Google’s evolving algorithms, driving visibility and delivering measurable results to help businesses grow in a competitive online world.
Clients: Solos Holidays, MG Motor, F1 Autocentres, Purity Brewing, Aston Villa Football Club
Prices: $1,000+ minimum project size.
Reviews: 4 Google
*Clutch.co data
