
Top 100 On-Page SEO Companies in London
The Best of February 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, England
ESA Digital is a SEO agency. They are headquartered in London, United Kingdom and have a small team. Their services include search engine optimization, public relations, and content marketing.
Clients
Hanna SillitoeIndustries
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2
$5,000+10 - 49 employeesLondon, EnglandBird Marketing is a small London, England-based SEO agency. They provide Search Engine Optimization and Web Design and were founded in 2010.Read More
Clients
Huawei SuperMicro FirstData Cancer ResearchIndustries
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3
$1,000+10 - 49 employeesReading, EnglandEstablished in 2015, Blue Array SEO is a SEO services firm. Their small team is in Reading, England; London, England and Berlin, Germany. Their services include Search Engine Optimization.Read More
Clients
RACIndustries
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4
$1,000+10 - 49 employeesLondon, England
E-intelligence is a SEO company and web development company in Vadodara, India and Sheffield, United Kingdom. The midsize team offers search engine optimization and web development and was launched in 2005.
Clients
Channers on NorfolkIndustries
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5
$1,000+10 - 49 employeesGuildford, EnglandBreakline is a SEO services firm. The small Guildford, England-based firm was launched in 2012. Their team focuses on Search Engine Optimization.Read More
Clients
Exciting Escapes Mayfield Dental Value My Car Taylor AerialsIndustries
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6
$5,000+10 - 49 employeesLondon, England
Novi.Digital is a data-driven digital marketing agency headquartered in Lancaster, UK. Founded in 2009, Novi.Digital also has locations in London, Manchester, and Leeds. Their team of 18 divides its team between providing SEO and PPC services.
Clients
Carbon TrustIndustries
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7
$1,000+2 - 9 employeesTwickenham, England
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.
Clients
SubwayIndustries
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8
$5,000+10 - 49 employeesLondon, England
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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9
$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
Industries
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10
$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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11
$5,000+50 - 249 employeesLondon , EnglandBrafton, a Content Marketing company, is based in Boston, Massachusetts; Chicago, Illinois; San Francisco, California and Sydney, Australia. The firm focuses on Content Marketing and Search Engine Optimization and has a midsize team.The firm was established in 2008.Read More
Clients
CanvaIndustries
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12
$1,000+2 - 9 employeesLondon, England
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.
Clients
Reader's Digest UKIndustries
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13
$5,000+10 - 49 employeesLondon, England
Launched in 2020, Zahara Consult is a web development firm. Their small team is headquartered in Sofia, Bulgaria and focuses on web development, custom software development, web design, digital strategy, and more.
Clients
AveratoIndustries
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14
$1,000+10 - 49 employeesLondon, England
Agile Digital Agency is a marketing technology agency based in London. The agency has a team of less than ten that provides email marketing, SEO, and other digital marketing services to small and midmarket companies and institutions.
Clients
Singleton Law Firm (USA)Industries
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15
$1,000+10 - 49 employeesLondon, England
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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16
$10,000+50 - 249 employeesLondon, England
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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17
$10,000+10 - 49 employeesLondon, England
Creative Brand Design is a small web design company. They specialize in web design, search engine optimization, e-commerce development, graphic design, and more and were launched in 2007.
Clients
WFUNA Nato Innovation Fund Strata Create J StimlerIndustries
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18
$1,000+2 - 9 employeesAshford, England
Discoverable is a marketing agency founded in 2017 and based in Ashford, Kent. The team consists of less than 10 employees and specializes in SEO and PPC.
Clients
Cook FoodsIndustries
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19
$5,000+50 - 249 employeesLondon, EnglandAspectus, a midsize branding firm, is in London, England; New York, New York; Aberdeen, Scotland and Singapore. They provide Branding, Public Relations, Search Engine Optimization, and Web Design and were launched in 2008.Read More
Industries
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20
$5,000+2 - 9 employeesLondon, England
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.
Clients
Ventus Medical 60Forty Films Bubbleology Brontë Film & TVIndustries
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21
$1,000+10 - 49 employeesLondon, England
Footprint Digital is a marketing and advertising agency based in Colchester, United Kingdom, with an additional office in London. Founded in 2012, their team of around 20 employees specializes in PPC, SEO, and conversion optimization.
Clients
Safestore -
22
$1,000+10 - 49 employeesLondon, EnglandAbsolute Digital Media is a public relations agency in London, England and New York, New York. Established in 2008, the small team offers Public Relations, Search Engine Optimization, Pay Per Click, and Other Digital Marketing.Read More
Clients
LovehoneyIndustries
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23
$5,000+10 - 49 employeesLondon, England
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.
Industries
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24
$5,000+50 - 249 employeesLondon, England
NinjaPromo was founded in 2017. They have more than 50 employees with its offices spanning across the globe. It stands as a premier digital marketing agency known for its worldwide presence. They specialize in enhancing brands through comprehensive multi-channel marketing strategies. They possess a deep knowledge of various industry principles and are particularly adept at assisting B2B, blockchain, FinTech, software, and rapid-growth start-up brands to navigate the intricate and volatile market landscape.
Clients
IqoniqIndustries
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25
$25,000+50 - 249 employeesLondon, England
Impression is a multi-award winning, international performance agency with offices in Nottingham and London. Founded in 2012, the agency now employs 60+ high-calibre strategic specialists. Impression works with exciting and ambitious brands from across the globe and their portfolio includes household names like Clarins, Topps Tiles and Cancer Research UK. Their core services include SEO, paid media, digital PR, analytics and CRO.
Clients
Clarins Norse Atlantic Airways Cancer Research UK hVIVOIndustries
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26
$1,000+10 - 49 employeesFitzrovia, England
GLO - Generate Leads Online is a freelance digital marketing agency based in Ipswich, England. Founded in 2019, the company offers SEO, web design, and PPC services to small businesses. Their SEO services focus on on-site optimization, link earning, and local search.
Clients
Fees Free MortgagesIndustries
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27
$1,000+2 - 9 employeesLondon, EnglandRepublic Marketing, a SEO company, was established in 2020. The company specializes in Search Engine Optimization, Pay Per Click, Web Design, and Web Development and has a small team. The company is in Birmingham, England and London, England.Read More
Clients
Josh Fano Pume Rove Legal PureBurnIndustries
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28
$1,000+10 - 49 employeesLondon, England
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.
Clients
The AAIndustries
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29
$1,000+10 - 49 employeesLondon, EnglandSmall SEO agency Ignite SEO, is headquartered in London, England and Coventry, England. They offer Search Engine Optimization and were founded in 2020.Read More
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