Top Social Media Marketing Agencies in London

Founded in Kyiv in 2015, RegisTeam is a growth marketing agency that works with clients in the United States, Europe and Australia. Its work is built around two disciplines that carry most of its projects: search engine optimization and pay-per-click advertising, with CRM consulting and analytics supporting both. On the SEO side, the team handles technical audits, content and link building, and a newer line of work on visibility in AI search — making sure brands are cited in answers from ChatGPT, Google AI Overviews and similar tools. On the paid side, it plans and manages Google Ads accounts, from launch and tracking setup to ongoing optimization. CRM and automation projects connect marketing data to sales, so lead quality can be measured rather than guessed. According to its Clutch profile, RegisTeam has delivered more than 1,300 projects in over 25 countries and holds a 5.0 rating across 69 client reviews.

Avon, Defacto, Turkcell, Estee Lauder and Kapital Bank are among the clients Cremicro lists on its site. Founded in 2013, it is headquartered in Istanbul's Sisli district and also lists offices in Baku, London, Amsterdam and Oregon. Its specialism is search and performance advertising: SEO, generative engine optimization for AI answers, and paid campaigns on Google Ads and Meta Ads. The agency also manages social media accounts, designs websites, and produces video and other content to feed those campaigns. Its client industries include both IT and manufacturing. Cremicro works with businesses in London and Manchester as well as US states such as Arizona, Colorado, Georgia, Illinois, Massachusetts and Washington. It is a solid choice for established brands that want search, paid media and social content run by one team, and companies in Turkey or Azerbaijan planning to expand into the UK or US markets with a partner already present there.

Bird Marketing is a full-service digital marketing agency headquartered in the UK, with branches in other countries. It describes itself as multi-award-winning. It was founded in 2010 and has offices that include London, New York, Dubai and Toronto. The agency works across web design and development, SEO, PPC, social media marketing, generative engine optimization (GEO), branding and creative, and UI/UX design. That mix covers both building a website and bringing traffic to it through paid and organic channels. Its clients include home services and insurance businesses, and it also offers link building. It works with clients in the United Kingdom, Canada and the United States, including Los Angeles, San Diego and New York. Companies that want design, development and digital marketing under one roof from an agency with offices in several countries may find Bird Marketing a sensible option, as may firms that need a new website and ongoing search campaigns run by the same agency.