Shifts in the agency market have seen a much more competitive landscape in 2024, with the market increasingly filled with a large quantity of small and micro agencies. It’s no different with SEO, with hundreds of small teams all competing for business, with the capital being especially jammed with different players. A quick look on Google Maps for “SEO Agencies in London” returns a sea of red pins, with many even stacked on top of each other.
With so many agencies vying for business, it can be difficult to find one that can truly deliver the services, results and success you’re looking for.
To matters simple, we’ve created this list of the best 10 SEO agencies in London.
How We Created Our Ranking
Our comprehensive ranking is based on a number of factors such as:
- Brand ethos and proposition,
- Experience
- Case studies and accomplishments
- Services and offering
- Awards.
View the agencies we’ve ranked as the best in London below.
1. POLARIS
With over 15 years of continuous experience as an SEO agency, Chancery-lane based POLARIS is renowned for its ability to reliably drive success for both B2B and eCommerce businesses while providing a high ROI for their clients. Their in-depth SEO knowledge spanning everything from on-page to the grittiest of technical SEO issues gives them an edge over the skillsets of many competitors.
POLARIS’ ethos also stands out from the crowd. More than just helping businesses meet their goals, their directive is to enrich lives through knowledge – helping their clients and partners that demand success by delivering crucial information as well as the commercial results they seek.
All this is evident in the case studies they publish, most prominently helping iconic footwear and fashion brand Dune London achieve a 45% increase in search visibility and a revenue increase of 38%. They were recognised by The Drum as one of top 20 small agencies for strategic thinking in London – gaining recognition for more than just their SEO services.
POLARIS have the ideal blend of experience, proven results, a forward-thinking ethos and awards to make them the ideal partner for SEO.
2. FOUND
Originally a PPC agency, FOUND have transformed themselves into a marketing agency with effective SEO and organic search services amongst their offering of paid media, digital PR, and marketing strategy.
FOUND’s ethos focuses on providing excellence for their clients, with a forward-facing approach and a heavy emphasis on analytics and strategy. Their newest approach, “EVERYSEARCH” focuses on measuring organic visibility across multiple platforms.
Their work has led to case studies with businesses like Bonmarché and Toolstation, and they were nominated as a ‘Recommended Agency’ by the Drum in 2023.
3. Figment Agency
Proudly London-based SEO agency Figment are a specialised SEO agency working with the healthcare and professional services industries. With a focus on these two industries, Figment’s ethos focuses on connecting their clients with more leads, enquiries – meeting their business objectives through SEO, rather than just increasing organic traffic.
Their work has led them to work with a number of different healthcare and service brands, as well as eCommerce businesses, and in 2022 they were a winner at the UK Search awards.
4. GOUP
Search and web agency GOUP (or Go-Up) have developed a reputation for a friendly culture and engaging well-known clients.
With a host of services from SEO, Web design and UX, to digital PR and even paid media, GOUP’s services are wide-spanning – though not particularly specialised. Having worked with brands such as Pasta Evangelists and Hackett London.
While their case studies are impressive, GOUP don’t have many awards or accreditations.
5. Ignite SEO
A framework and process driven SEO agency, Ignite SEO are a young agency with less than 5 years of experience but an already-impressive repertoire.
Sticking firmly to their agency values and the process they have created, Ignite’s services are specialised to SEO with a specific focus on eCommerce and Local SEO.
While their current set of case studies are limited, target-driven campaigns have driven impressive results for a number of small clients across a number of sectors.
6. ClickSlice
SEO and PPC agency ClickSlice have just shy of a decade’s experience in the market but are well known, primarily through the efforts of their founder, Joshua George. Having restructured on a couple of occasions, the current iteration of ClickSlice has established itself as one of the top agencies in London – with their current base located in Shoreditch.
Many brands have worked with ClickSlice to lead learning and development around SEO, including GOV.UK. Their complement of services primarily covers SEO and PPC, with a focus on eCommerce brands.
7. SEOWorks
Operating across SEO, PPC and paid social, SEOWorks are a London SEO agency based in the Isle of Dogs. While they don’t have a set ethos, their business focuses on taking advantage of changing consumer habits to maximise online visibility.
With a number of awards under their belt, and previous work with a number of universities, ecommerce, and B2B brands, SEOWorks has been providing reliable services for nearly 15 years.
8. Pearl Lemon
A link-building-focused agency from London, Pearl Lemon is an SEO agency and consultancy. Conducting businesses across eCommerce and B2B sectors, Pearl Lemon emphasises the cost-effectiveness of their services. Their ethos and service framework are built around a 6-stage process, with their work generating a large number of reviews from satisfied clients.
Picking the Best Agency in London for Your SEO
Choosing a London SEO Agency to drive your organic traffic isn’t just as simple as finding the one with the most colourful logo or the best strap-line. Look for agencies with specific experience with your business and the project you want to undertake – evaluate their credentials, awards and case studies.
Before you do choose an agency, consult our guide to the 10 key considerations you should make when choosing an agency for your business.
