Top 100 Advertising Agencies in London

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Top 100 Advertising Agencies in London

November 2022

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Businesses looking to increase visibility should partner with advertising agencies. Advertising companies are a gateway to crucial resources, including designers, SEO/PPC experts, and more. 

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List of the Best London Advertising Companies

  • 61
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Free The Birds is a small branding agency located in London, United Kingdom. They offer branding, packaging design, advertising, and content marketing and were founded in 1997.

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  • 62
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    Adform is an independent full-stack ad-tech platform. In addition to headquarters in Copenhagen, Denmark, Adform has 19 offices located around the world in global cities like Vilnius, Lithuania, Hamburg, Germany, New York, and London. Founded in 2002, Adform's team of over 840 employees provides media planning & buying, web design, and advertising services. Its prestigious client base includes enterprise-level businesses concentrated in the technology and telecommunications space.

    Clients

    • T-Mobile
    • Ergo Direkt
    • Vodafone
    • Tchibo

    Industries

    Notable Project

    "Adform has grown at an amazing pace in the last 5 years. Starting as an ad-server, it now represents a best-in-class AdTech solution: a tech giant with an entrepreneurial flavour when it comes to customization. Partnering with Adform gave our agency a competitive advantage in the Italian advertising market." – President, Digital Marketing Company

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  • 63
    • $100,000+
    • 250 - 999 employees
    • London, United Kingdom

    Crispin Porter + Bogusky is a full-service advertising agency with nearly 800 employees. Founded in 1988, they are headquartered in Gunbarrel, Colo., and have additional offices in Los Angeles, Miami, Copenhagen, Stockholm, Hong Kong, Beijing, Boulder, Colo., and Brazil. Services include branding, digital and marketing strategy, and media planning and buying. 

    Clients

    • Domino's
    • Jose Cuervo
    • Amazon
    • Fruit of the Loom
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  • 64
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    We Are Social is an advertising company established in 2008. The midsize team specializes in advertising, branding, digital strategy, social media marketing, and more. The company is based in London , United Kingdom; New York, New York; Milan, Italy and Paris, France.

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  • 65
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    Anomaly is an advertising company. Founded in 2004, the team provides advertising, branding, digital strategy, social media marketing, and more. Their midsize agency is located in London, United Kingdom; Los Angeles, California; Shanghai , China and New York, New York.

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  • 66
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    Carat, an advertising company, was founded in 1968. The midsize London , United Kingdom-based team focuses on advertising, branding, digital strategy, social media marketing, and more.

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  • 67
    • $10,000+
    • 10,000+ employees
    • London, United Kingdom

    Dentsu Aegis is a global branding agency headquartered in London and operates in over 140 countries worldwide. Since 1966, their team of 6,546 has been specializing in advertising, branding, digital strategy, and more for clients in the business and financial services industries. 

    Clients

    • United Airlines
    • MIX
    • Intel
    • Hilton

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  • 68
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    OMD , an advertising company, was established in 1986. The midsize London, United Kingdom-based team specializes in advertising, branding, digital strategy, social media marketing, and more.

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  • 69
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    360i is an international marketing and advertising agency that was founded in 1998. It is headquartered in New York and has U.S. offices in Atlanta, Chicago, and Los Angeles. Its international offices are found in the U.K., Canada, and Brazil. Its large team of around 1,000 employees has two decades of experience in web design, advertising, and social media marketing. The team at 360i specializes in working with large enterprises but has worked with smaller and mid-market sized clients in the past. 

    Clients

    • FOX
    • Canon
    • Oscar Meyer

    Industries

    Notable Project

    360i was hired by a television company to drive engagement for one of their hit shows. 360i designed a Twitter gamification campaign in which users had to navigate the platform to "find" a missing clue about one of the show's characters. 360i was able to get the topic trending and generated over 6 million impressions for the campaign. 

     

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  • 70
    • $10,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    MediaCom is a marketing and advertising agency in Budapest, Hungary. Founded in 1997, they have approximately 7,000 employees that do social media marketing, digital strategy, and content marketing. MediaCom serves a range of clients in a variety of sectors.  

    Clients

    • Mars
    • Revlon
    • Shell
    • Strayer University

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  • 71
    • $10,000+
    • 1,000 - 9,999 employees
    • LONDON, United Kingdom

    Mindshare is a large advertising company established in 1997. Their team specializes in advertising, branding, digital strategy, social media marketing, and more. The company is located in LONDON , United Kingdom; New York, New York; Gurgaon, India and New Delhi, India.

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  • 72
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Wolff Olins is an advertising company launched in 1965. The midsize New York, New York-based team provides advertising, branding, digital strategy, social media marketing, and more.

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  • 73
    • $10,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Mirum Agency is a digital marketing agency with offices around the globe – from California to Texas to Minnesota to Dubai to Spain and more. Founded in 2015, Mirum combines strategy, creativity, and technology to understand business and human motivations. With a sizeable team (1500+) of digital savants, storytellers, and makers, Mirum Agency specializes in web design, social media marketing, digital strategy, advertising, and branding.

    Clients

    • Mastercard
    • Pfizer
    • Asus
    • Hong Kong Tourism Board

    Industries

    Notable Project

    Mirum Agency worked with a hotel brand to strengthen its brand image in the luxury travel industry. They created an interactive content series that places travelers in locations of interest to build a sense of adventure, intrigue, and possibility.

    “Our goal for this campaign is to reignite our guests’ passion for travel and fascination for discovering new places. These stories are meant to evoke curiosity, broaden the mind, and inspire international travel.” – Vice President of Lifestyle Brands, Hotel Brand

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  • 74
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Crimtan is an advertising company founded in 2009. They are headquartered in London, United Kingdom; , Russia and , United Arab Emirates and have a midsize team. The firm focuses on advertising, branding, content marketing, search engine optimization, and more.

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  • 75
    • Undisclosed
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Iris, a large marketing strategy company, is in London, United Kingdom; Amsterdam, Netherlands; Atlanta , and Chicago , . They provide marketing strategy, digital strategy, advertising, content marketing, and more and were launched in 1999.

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  • 76
    • $10,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    M&C Saatchi London is an advertising company. They offer advertising, branding, content marketing, search engine optimization, and more and were founded in 1995. Their large team is based in London , United Kingdom; , China; , Australia and Los Angeles, California.

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  • 77
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    Pentagram is a design studio headquartered in London. They have about 315 employees and additional offices in Berlin, New York, and Austin, Texas. Services include advertising, branding, and design for web, packaging, and graphics. Pentagram's clients are mainly in the arts and entertainment, financial services, business services, government, and consumer products and services sectors. 

    Clients

    • American Express
    • Hyphen
    • SpiritLand
    • Buffy

    Industries

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  • 78
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    Tradedoubler is a SEO services firm. The midsize London, United Kingdom-based agency was launched in 1999. Their team specializes in search engine optimization, web design, advertising, ux/ui design, and more.

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  • 79
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    B2B International is a SEO agency established in 1998. The midsize London, United Kingdom-based team offers search engine optimization, web design, advertising, ux/ui design, and more.

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  • 80
    • $10,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Mother is a large London, United Kingdom-based SEO agency. The team offers search engine optimization, web design, advertising, ux/ui design, and more.

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  • 81
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    MN2S, a SEO company, was founded in 1995. They are headquartered in London, United Kingdom and have a small team. Their services include search engine optimization, web design, advertising, ux/ui design, and more.

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  • 82
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Established in 1982, Total Media Group Ltd is a SEO services firm. The midsize team focuses on search engine optimization, web design, advertising, ux/ui design, and more. The company is based in London, United Kingdom.

    Industries

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  • 83
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    SEO company TranslateMedia is located in London , United Kingdom and Lodz District, Zdunska Wola County, Poland. The firm focuses on search engine optimization, web design, advertising, ux/ui design, and more and is midsize.The firm was launched in 2004.

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  • 84
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Distilled is a London, United Kingdom-based SEO company. The midsize company was established in 2005. Their team provides search engine optimization, web design, advertising, ux/ui design, and more.

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  • 85
    • $5,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Headquartered in New York, New York; London, United Kingdom and , Brazil, RGA is an advertising company. The firm focuses on advertising, branding, web design, content marketing, and more and is large.The firm was established in 1977.

    Industries

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  • 86
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Survation Ltd is a SEO company launched in 2010. The agency offers search engine optimization, web design, advertising, ux/ui design, and more and has a small team.

    Industries

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  • 87
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Kesselskramer, an advertising company, is based in London, United Kingdom; Los Angeles, California and Amsterdam, Netherlands. The company specializes in advertising, branding, graphic design, product design, and more and has a small team.The company was launched in 1996.

    Industries

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  • 88
    • $5,000+
    • 10,000+ employees
    • London, United Kingdom

    Omnicom is a large branding company. Established in 1986, the team provides branding, CRM consulting and SI, digital strategy, public relations, and more. The firm is located in New York, New York; London, United Kingdom and Chicago, Illinois.

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  • 89
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Mention Me, a midsize advertising company, is based in London, United Kingdom. They focus on advertising, digital strategy, marketing strategy, and social media marketing and were founded in 2012.

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  • 90
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    VCCP, a midsize advertising company, is headquartered in London , United Kingdom; Berlin, Germany and , Czech Republic. Founded in 2002, the team offers advertising, branding, digital strategy, search engine optimization, and more.

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