Top 100 On-Page SEO Companies in the United Kingdom

ESterling is an e-commerce development firm. Established in 1990, the small company is located in Birmingham, United Kingdom. Their services include e-commerce development, pay per click, search engine optimization, web design, and more.

POLARIS is an SEO agency in London, England. Founded in 2009, they have about 10 employees that serve mostly small-business and midmarket clients in the business, education, and e-commerce sectors. Services include SEO, PPC, and UI/UX design.

Digital Litmus is a marketing and digital agency based in London. Founded in 2015, their team of around 10 employees specializes in content marketing, digital strategy, and PPC.

Bulldog Digital Media is a fast-growing digital marketing agency based in London. Founded in 2013, Bulldog Digital Media has a team of 10+ employees that specialize in SEO, PPC, and conversion optimization. They mainly serve small and medium enterprises.

Fit Design is a London, Croydon, United Kingdom-based web design agency. Founded in 2012, the small team offers web design, web development, search engine optimization, and ux/ui design.

Web Bureau is a web agency headquartered in Belfast, United Kingdom, with an office in Dublin, Ireland. Since 2005, the company has specialized in web development, pay-per-click, and web design solutions for small and midmarket businesses. They also offer SEO services, focusing on mobile optimization, on-site optimization, and local search, among other methods.

Crescat Digital is a content marketing company. Established in 2014, the agency is located in Crawley, United Kingdom. The small team offers content marketing, pay per click, search engine optimization, social media marketing, and more.

Solve Web Media is an SEO, digital marketing, and web design agency headquartered in St. Columb, U.K. The agency was founded in 1999, and has a team of 7 people who solely provide SEO and web design services. 
 

The Good Marketer is a digital marketing agency in London, England. Founded in 2017, they have about 6 employees that serve small businesses in a wide range of industries. Services include social media marketing, SEO, and PPC.

Shape The Market is an advertising and marketing agency that has been offering social media marketing, content marketing, and email marketing services to their clients since 2014 . Their 50 employees are based out of their London office.

Webdesign7 is a digital marketing agency based in London. Founded in 2011, their team of 8 specializes in web development and design, mobile app development, and digital strategy. The industries they focus on are advertising and marketing, consumer products and services, arts, entertainment and music.  

Signify Digital Ltd is an online marketing agency founded in 2017 in London. Their team of fewer than 10 employees caters to clients seeking SEO, PPC, social media marketing, and content marketing.

Optimized Pixels is a graphic design company. Founded in 2023, the agency is based in Lancaster, United Kingdom. The small team provides graphic design, video production, video marketing, social media marketing, and more.

Underline Digital Agency is a branding agency. They are in London, United Kingdom and Manchester, United Kingdom and have a small team. Their services include branding, digital strategy, web design, web development, and more.

A digital marketing firm based in London, ChannelDoubler was founded in 2003. Their team of fewer than 10 specializes in SEO, content marketing, web design, and e-commerce development. They serve small to midmarket businesses in the e-commerce, hospitality, and leisure industries.

Founded in 2014, Superb Digital is an SEO agency based in Bristol, United Kingdom. Primarily serving small businesses, their team of fewer than 10 specializes in industries such as consumer products, business services, and retail. Services also include content marketing, PPC, and web design.

Founded in 2016, Digital Web London is a SEO agency. Headquartered in London, United Kingdom, their small team provides search engine optimization, web design, mobile app development, and ux/ui design.

SOAR Digital is a digital agency in Leeds and Skipton, United Kingdom. Founded in 2020, they have about 2 employees that serve small-business and midmarket clients in the e-commerce, business, and consumer products industries. Services include SEO and web design.

Established in 2021, Fractional Teams is a social media marketing agency. The small London, United Kingdom-based team offers social media marketing, content marketing, email marketing, conversion optimization, and more.

Digital glue is a marketing firm based in Birmingham, U.K. They employ their digital marketing, PR, website design, branding, graphic design, and social media skills to maximize ROI for clients. Founded in 2013 and with fewer than 15 employees, they serve business services, IT, and media sectors.

Quarter Digital is a Bournemouth, United Kingdom-based web design company. The small agency was founded in 2022. Their team offers web design, ux/ui design, graphic design, and logo.

Codener is a software company based in London that was founded in 2016 and currently has more than 50 employees. They provide custom software, web, and e-commerce development solutions to clients ranging from startups to large companies in the fields of e-commerce, advertising, and business services.

Rise - The Growth Marketing Collective is a marketing firm based in Borehamwood, England, run by a freelancer. Since 2017, the firm has offered marketing strategy, digital strategy, and social media marketing assistance to small and mid-market businesses in the fields of arts, consumer products, and e-commerce.

Search Logistics is an SEO agency founded in London in 2019 with over 10 professionals. They provide SEO solutions to various clients.

Modo25 Limited is a digital marketing firm based in Leeds, England, and founded in 2019. Their team of no more than 50 provides digital strategy, affiliate marketing, and SEO solutions for small and mid-market businesses alike.

Design Culture, a small branding agency, is located in London , United Kingdom. Established in 2006, the team provides branding, marketing strategy, web development, graphic design, and more.

Social media marketing firm Otter Labs is in London, United Kingdom. The agency focuses on social media marketing, branding, digital strategy, content marketing, and more and is small.The agency was founded in 2022.

Vixen Digital is a marketing agency based in Brighton, England with no more than 10 experts. Founded in 2017, they provide digital strategy, PPC, and SEO solutions to small and mid-market firms that work in the fields of business services, e-commerce, and hospitality.

Market Jar is a digital marketing and design agency that was founded in 2017 and is based in London. Their team of 3 employees specializes in SEO, advertising, and email marketing for primarily small business clients in the consumer products, retail, and e-commerce industries.

Zest Digital Limited is a digital marketing company with offices in Oxford, London, and Birmingham, United Kingdom. The 13-person team’s services include content marketing, digital marketing, PPC, and SEO. Founded in 2010, they work primarily with small and midmarket businesses in the business services, manufacturing, and education industries.