LAST UPDATED December 07, 2025

Top Social Media Marketing Agencies in London, United Kingdom

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  • PSONA

    London - United Kingdom

    Brands don’t matter, until they do things that make them matter. We are PSONA, a new kind of customer engagement agency, doing whatever it takes to make you matter, both now and in the future. Digitally empowered consumers have taken control of the

  • NMPi

    London - United Kingdom

    NMPi is an international digital marketing agency with offices in the UK, the Netherlands, Switzerland, South Africa, Australia, Malaysia, and Singapore. We have over 13 years of experience delivering market-leading, global strategies across Paid Sea

  • Croud

    London - United Kingdom

    Croud was set up in late 2011 and in that time have been credited with being Google\'s fastest growing agency for both 2013 and 2014 and the fastest agency to ever get Tier 1 Google support. We have a great bunch of clients including Interflora, Netf

  • MMT Digital

    London - United Kingdom

    MMT Digital creates digital solutions that transform business performance. We’re strategists, analysts, problem solvers, creators, originators, designers and builders – we are digital visionaries. We get to the what, why and how of game-chan

  • DBOX

    London - United Kingdom

    We build brands and develop immersive marketing campaigns for the fields of property development, architecture and the arts. Since being founded in 1996, we have received awards from the Academy of Television Arts & Sciences (Emmy® Awards), T

  • equimedia

    London - United Kingdom

    Our expertise helps leading brands solve challenges and achieve growth through hard-working and creative digital marketing solutions. And our people set us apart! Talented, experienced and pragmatic, they epitomise our pursuit of achieving the very b

  • Brandwidth

    London - United Kingdom

    Brandwidth is a fully integrated, award-winning innovation agency. With offices in London, Windsor and San Francisco, and over 100 in-house experts, we reinvest over 10% of our turnover into innovation. We apply it through insight, creativity and tec

  • Lexis Agency

    London - United Kingdom

    Founded in 1992, Lexis is part of the Next15 Communications Group and specialises in Consumer, Corporate and B2B PR, Social Media and Live Experiences. Our consultants work together in integrated teams to deliver award-winning campaigns and outstandi

  • Dalziel and Pow

    London - United Kingdom

    Now, more than ever, there’s a demand for truly insightful and creative responses to deliver competitive advantage. By stretching the definition of design for retail, we work alongside our clients to exploit the power of experiences to change perce

  • Spectrecom Films

    London - United Kingdom

    Spectrecom Films is a creative content agency with digital marketing and video production services in London. We love to work with brands, agencies, charities, corporate and higher education sectors. Our passionate in-house creatives, producers, di

  • Social Media Marketing Agencies in London, United Kingdom

    Top Social Media Marketing Firms in London, United Kingdom