Top 30 London SEO Agencies
The Best of December 2025Looking for a top SEO firm in London?
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 London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best London SEO Firms
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1$5,000+10 - 49 employeesVictoria, London, EnglandCEEK is a small SEO services firm. In Victoria, London, England and Brighton and Hove, England, the firm was launched in 2016. Their services include Search Engine Optimization, Social Media Marketing, Pay Per Click, Marketing Strategy, and more.Read More
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Small Beer Brew Co The Maine Mayfair LavazzaIndustries
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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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2$1,000+50 - 249 employeesLondon, EnglandBreakline, a SEO company, is headquartered in Guildford, England; London, England; Boise, Idaho and Houston, Texas. They provide Search Engine Optimization and were launched in 2012.Read More
Clients
Exciting Escapes Mayfield Dental Value My Car Taylor AerialsIndustries
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3$5,000+10 - 49 employeesLondon, EnglandBird Marketing is a London, England-based SEO company. Founded in 2010, the small team provides Search Engine Optimization and Web Design.Read More
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Huawei SuperMicro FirstData Cancer ResearchIndustries
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4$1,000+2 - 9 employeesTwickenham, EnglandRead More
Genie Crawl, founded in 2018, is a digital marketing agency headquartered in Twickenham, U.K. They have a team of less than 10 who specialize in SEO, PPC, and web design services.
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SubwayIndustries
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5$5,000+10 - 49 employeesLondon, EnglandRead More
Passion Digital is a digital marketing agency based in Holborn, Central London, founded in 2012. We specialize in blending performance and imagination to create innovative marketing solutions for growth brands, offering services such as organic marketing (SEO, content marketing) and paid media (PPC, paid social, YouTube, and programmatic).
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Mazda Octopus Investments Knight Frank BionaIndustries
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6$1,000+2 - 9 employeesRichmond, EnglandRead More
Artios, a small SEO agency, is based in Richmond, United Kingdom. Launched in 2007, the team offers search engine optimization.
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7$5,000+50 - 249 employeesLondon, EnglandRead More
Established in 2015, ROAST | B Corp Certified is a SEO agency. Their midsize team is headquartered in London, England; Cape Town, South Africa; Avon, England and New York, New York. Their services include Search Engine Optimization, Social Media Marketing, Pay Per Click, Media Planning & Buying, and more.
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Experian Hyperoptic World Courier, part of CencoraIndustries
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8$1,000+10 - 49 employeesLondon, EnglandLaunched in 2015, Minty Digital is a small SEO company headquartered in Barcelona, Spain; London, England and New York, New York. Their services include Search Engine Optimization, Public Relations, and Content Marketing.Read More
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HaloIndustries
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9$5,000+50 - 249 employeesLondon, EnglandNon.agency is a SEO services firm. They are based in London, England; Poznań, Poland and Poznań, Poland and have a midsize team. The company offers Search Engine Optimization, Generative AI, Digital Strategy, and Content Marketing.Read More
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10$5,000+50 - 249 employeesSydney, AustraliaRead More
Brafton is a midsize Boston, Massachusetts-based Content Marketing company. They focus on Content Marketing and Search Engine Optimization and were launched in 2008.
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CanvaIndustries
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11$1,000+10 - 49 employeesLondon, EnglandE intelligence is a SEO agency founded in 2005. The agency provides Search Engine Optimization, Pay Per Click, Web Development, and Low/No Code Development and has a small team.Read More
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Channers on NorfolkIndustries
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12$1,000+2 - 9 employeesLondon, EnglandSmall SEO company Agile Digital Agency, is headquartered in London, England. They provide Search Engine Optimization, Web Design, and Web Development and were launched in 2018.Read More
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Singleton Law Firm (USA)Industries
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13$1,000+50 - 249 employeesLondon, EnglandStudioHawk SEO Agency is a Prahran, Australia-based SEO company. The company focuses on Search Engine Optimization, Content Marketing, Public Relations, and Conversion Optimization and is midsize.The company was established in 2015.Read More
Clients
Quick Books Officeworks New Balance YouFoodzIndustries
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14$5,000+250 - 999 employeesLondon, EnglandRead More
Ninja Promo is a New York, New York-based social media marketing company. The company specializes in Social Media Marketing, Mobile & App Marketing, Other Digital Marketing, Advertising, and more and is midsize.The company was established in 2017.
Clients
IqoniqIndustries
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15$5,000+50 - 249 employeesLondon, EnglandAspectus is a branding company. The midsize London, England-based team offers Branding, Public Relations, Search Engine Optimization, and Web Design. The company was established in 2008.Read More
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16$1,000+10 - 49 employeesLondon, EnglandIgnite SEO is a SEO services firm established in 2020. The small team focuses on Search Engine Optimization. The company is located in London, England and Coventry, England.Read More
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17$1,000+10 - 49 employeesLondon, EnglandRead More
Improve My Search Ranking is a SEO company. They specialize in search engine optimization and were launched in 2014. Their small team is London, United Kingdom-based.
Clients
NHSIndustries
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18$5,000+50 - 249 employeesLondon, EnglandLaunched in 2012, Impression is a SEO agency. They are located in Nottingham, England; London, England; Manchester, England and New York, New York and have a midsize team. Their services include Search Engine Optimization, Pay Per Click, Digital Strategy, Public Relations, and more.Read More
Clients
Clarins Norse Atlantic Airways DHL hVIVOIndustries
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19$1,000+2 - 9 employeesLondon, EnglandBulldog Digital Media is a SEO company. The London, England-based company was launched in 2013. The small team provides Search Engine Optimization, Content Marketing, and Public Relations.Read More
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20$5,000+10 - 49 employeesLondon, EnglandRead More
PNdigital Ltd is a SEO service based in London. PNdigital uses its SEO skills to increase user traffic, investigate leads and promote businesses with a large ROI. With a team of under 10 employees, PNdigital focuses primarily on SEO and PPC, whilst also offering web design and development services.
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21$1,000+10 - 49 employeesLondon, EnglandRead More
Founded in 2021, SEO LIFT - SEO Company London is a SEO services firm. They are in London, United Kingdom and have a small team. Their services include search engine optimization, social media marketing, content marketing, and pay per click.
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22$10,000+10 - 49 employeesLondon, EnglandRead More
Web design company CreativeWeb was founded in 2013. The small London, England-based team offers Web Design, Branding, Search Engine Optimization, and E-Commerce Development.
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Gorilla Science The Tunnels - Gibraltar's WWII Experience Soapbox NATO Innovation FundIndustries
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23$1,000+50 - 249 employeesLondon, EnglandIn London, England and London, England, Climb Online is a social media marketing company. The midsize agency was established in 2015. Their services include Social Media Marketing, Search Engine Optimization, Pay Per Click, Ecommerce Marketing, and more.Read More
Clients
TikTokIndustries
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24$1,000+10 - 49 employeesLondon, EnglandRead More
DiscoverMyBusiness is a small PPC company based in New York, New York; London, England and Madrid, Spain. They provide Pay Per Click, Social Media Marketing, and Search Engine Optimization and were launched in 2018.
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25$5,000+10 - 49 employeesLondon, EnglandRead More
Gripped is a marketing and advertising company based in London and founded in 2017. Their team of around 20 employees provides marketing strategy, content marketing, and conversion optimization.
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26$10,000+10 - 49 employeesLondon, EnglandHiyield is a web design company. They are located in London, England; Truro, England and Bristol, England and have a small team. Their services include Web Design, UX/UI Design, Custom Software Development, Web Development, and more. The agency was established in 2018.Read More
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27$5,000+10 - 49 employeesLondon, EnglandBurst Digital is a small London, England-based branding firm. They provide Branding, Web Design, Social Media Marketing, Search Engine Optimization, and more and were established in 2018.Read More
Clients
Vivienne Westwood - The Vivienne Foundation Artisan AI Cogency Global Moonbeam Car WashIndustries
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28$1,000+10 - 49 employeesFitzrovia, EnglandSEO services firm GLO was founded in 2019. The small team offers Search Engine Optimization, Pay Per Click, Web Design, Social Media Marketing, and more. The firm is in Ipswich, England and Fitzrovia, England.Read More
Clients
Fees Free MortgagesIndustries
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29$5,000+2 - 9 employeesLondon, EnglandRead More
Fat Cow Media is a creative web design agency founded in 2010 run by a team of fewer than 10 people. Based in London, they offer digital marketing, SEO, web design, and branding services for small and medium-sized businesses across a broad range of industries.
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Ventus Medical 60Forty Films Bubbleology Brontë Film & TVIndustries
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30$10,000+50 - 249 employeesLondon, EnglandRead More
Propeller is a web design and development company that was founded in 2000. Headquartered in London, with another office in New York, they have a team of over 55. They specialize in e-commerce development, email marketing, web design, and SEO or clients in the hospitality, leisure, consumer products, and retail industries.
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Azzuri Restaurant GroupIndustries
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