Top 100 On-Page SEO Companies in London
The Best of December 2025Looking for a top on-page SEO service provider in London?
On-page SEO companies typically perform an audit of your website to understand the technical and content-based changes you need to prioritize to rank web pages organically in search results. Some examples of action items may include shortening or lengthening meta descriptions and titles; adding target keywords to titles and meta descriptions; adding breadcrumb navigation to pages, and more.
When you work with an on-page SEO agency, be prepared to receive a list of recommendations. In the hiring process, ask if the agency implements the recommendations, too, or if that step would cost more.
To assist you in your search for a partner, we’ve compiled this list of the top on-page SEO companies in London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best London On-Page SEO Service Providers
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1$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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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
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Exciting Escapes Mayfield Dental Value My Car Taylor AerialsIndustries
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3$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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4$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).
Clients
Mazda Octopus Investments Knight Frank BionaIndustries
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5$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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6$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.
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IqoniqIndustries
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7$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.
Clients
Gorilla Science The Tunnels - Gibraltar's WWII Experience Soapbox NATO Innovation FundIndustries
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8$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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9$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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10$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
Clients
Singleton Law Firm (USA)Industries
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11$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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12$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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13$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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14$1,000+10 - 49 employeesBelfast, Northern IrelandRead More
Loud Mouth Media is a digital advertising agency based in Belfast, UK with offices in Glasgow, UK, and Dublin, Ireland. Founded in 2011, Loud Mouth Media's team of 15+ employees provides PPC and social media marketing services.
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The AAIndustries
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15$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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16$25,000+10 - 49 employeesLondon, EnglandWe Are Kitty is a web design agency. Launched in 2017, the company is in London, England and Cape Town, South Africa. The small team provides Web Design, UX/UI Design, Web Development, E-Commerce Development, and more.Read More
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17$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
Clients
HaloIndustries
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18$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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19$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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20$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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21$10,000+10 - 49 employeesLondon, EnglandRead More
Top Notch Dezigns® is a small web design agency. Founded in 2004, the firm is headquartered in New York, New York; Melville, New York; Los Angeles, California and London, England. Their team specializes in Web Design, Search Engine Optimization, Pay Per Click, Web Development, and more.
Clients
Home Depot Meadowbrook Financial Mortgage Bankers Long Island University Student Nursing Association (SNA) CassoneIndustries
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22$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.
Clients
Azzuri Restaurant GroupIndustries
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23$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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24$5,000+10 - 49 employeesLondon, EnglandWeb design company Republic Marketing is in Birmingham, England and London, England. The small agency was established in 2020. Their team focuses on Web Design, Search Engine Optimization, Pay Per Click, and Web Development.Read More
Clients
Josh Fano Pume Rove Legal PureBurnIndustries
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25$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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26$1,000+2 - 9 employeesLondon, EnglandRead More
Flycast Media is a pay per click agency. Launched in 2009, the team provides Pay Per Click, Web Design, Content Marketing, Conversion Optimization, and more. Their small agency is based in London, England and Watford, England.
Clients
IomartIndustries
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27$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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28$1,000+2 - 9 employeesLondon, EnglandRead More
Established in 2018, NXTWEB Agency is a SEO agency. Their small team is in London, United Kingdom and Chester, United Kingdom. Their team provides search engine optimization, pay per click, web design, social media marketing, and more.
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Reader's Digest UKIndustries
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29$5,000+2 - 9 employeesDubai, United Arab EmiratesRead More
Advertising company YouYaa was launched in 2017. They are in Dubai, United Arab Emirates; Riyadh, Saudi Arabia and London, England and have a small team. YouYaa specializes in Advertising, Branding, Public Relations, Marketing Strategy, and more.
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30$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
Industries
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