The 7 Largest Advertising Agency in London

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London is home to some of the world’s most renowned and influential advertising agencies. These agencies are responsible for creating and executing some of the most iconic and memorable advertising campaigns of all time. Here are the 5 largest advertising agencies in London:

  • WPP

WPP is the largest advertising agency in the world, with over 100,000 employees in 90 countries. The company was founded in 1985 and is headquartered in London. WPP owns a number of leading advertising agencies, including Ogilvy & Mather, JWT, Grey, and Y&R.

  • Omnicom Group

Omnicom Group is the second-largest advertising agency in the world, with over 70,000 employees in 100 countries. The company was founded in 1986 and is headquartered in New York City. Omnicom Group owns a number of leading advertising agencies, including BBDO, DDB Worldwide, TBWA, and PHD.

  • Publicis Groupe

Publicis Groupe is the third-largest advertising agency in the world, with over 80,000 employees in 100 countries. The company was founded in 1926 and is headquartered in Paris. Publicis Groupe owns a number of leading advertising agencies, including Leo Burnett, Saatchi & Saatchi, and BBH.

  • Interpublic Group

Interpublic Group is the fourth-largest advertising agency in the world, with over 50,000 employees in 100 countries. The company was founded in 1960 and is headquartered in New York City. Interpublic Group owns a number of leading advertising agencies, including McCann Erickson, Lowe, and DraftFCB.

  • Dentsu

Dentsu is the largest advertising agency in Japan and the fifth-largest advertising agency in the world, with over 40,000 employees in 145 countries. The company was founded in 1901 and is headquartered in Tokyo. Dentsu owns a number of leading advertising agencies, including Dentsu Young & Rubicam, Dentsu McGarryBowen, and Dentsu Isobar.

Advertising Agency in London
Advertising Agency in London

The 7 Biggest Advertising Agency near London

SlyFox Web Design & Marketing

  • Address: 478 Central Ave, London, ON N6B 2G1, Canada
  • Map: Click here
  • Rating: 4.7 (68)
  • Phone: +1 519-601-6696
  • Website: Link
  • Opening hours:
    Monday: 9:30 AM – 4:30 PM
    Tuesday: 9:30 AM – 4:30 PM
    Wednesday: 9:30 AM – 4:30 PM
    Thursday: 9:30 AM – 4:30 PM
    Friday: 9:30 AM – 4:30 PM
    Saturday: Closed
    Sunday: Closed
  • Reviews:
    Somerton Electric✭✭✭✭✭
    a month ago
    We’ve used SlyFox for our website, Google Ads, PPC, LSA, and SEO needs and their work is fantastic.

    Mike and his team are very responsive and attentive. They exceeded our expectations when it came to how the website turned out (better than we imagined) and they made everything very easy for us.

    They have been helping us build our reputation/brand and maximizing our revenue which has been highly increasing.

    We are thrilled with their service. They are skilled, reliable and quick to respond to any questions we have for them.

    I would highly recommend Mike and SlyFox’s services!

    Matthew Johnson✭✭✭✭✭
    2 months ago
    Working with Mike and his team has been a great experience. From the moment I reached out about having a website designed (w/ SEO optimization) for a medical practice, they’ve been very responsive to my inquiries and requests. Highly recommended.
    Tom Alber
    a month ago
    This place ripped me off. Over promised all this custom development. They slapped together an extremely ugly website then when they said they under charged me and demanded more money from my wife; when we never requested anymore work.. Michael then sent us threats and kept our money and threatens us some more that he would not only not finish the job, he “under quoted” us as per his words and literally threatened me for more money or he’s attach our business reputation. His wife was absolutely nasty and kept calling us over and over at late hours for no reason. These are the last people in the city you want to have attached to your businesses.
    Renzo G Gomez✭✭✭✭✭
    10 months ago
    It has been a great pleasure working with the dedicated Sly-Fox Team. We are very grateful to have found them, as they have made a big difference in attracting new clients and also maintaining a strong web presence. Among many great services, the first thing they helped us do is to effectively deliver our message by translating a highly technical language into everyday language. Our complete website was re-designed to deliver a more pleasant and interactive experience. As of recently, they helped us launch very effective marketing initiative and the results have surpassed all expectations in a very competitive field. Our sincere thanks to the entire Sly-Fox team and we certainly highly recommend their services.
    Sean Stanley✭✭✭✭✭
    9 months ago
    We had an excellent experience with SlyFox Web Design & Marketing! They created a website for us and through digital marketing, they raised awareness for a movie premiere we held at Wolf Performance Hall in London, Ontario – the event ended up with a packed house and a very enthusiastic crowd! Communication was smooth, the website looked great, and the traffic generated through the efforts of the SlyFox team certainly contributed to a fantastic turnout. Thanks for help SlyFox! Much appreciated!

ZOO Media Group Inc.

  • Address: 14 Mapleton Pl, London, ON N6K 4A5, Canada
  • Map: Click here
  • Rating: 5 (66)
  • Phone: +1 519-474-9774
  • Website: Link
  • Opening hours:
    Monday: 8:00 AM – 4:00 PM
    Tuesday: 8:00 AM – 4:00 PM
    Wednesday: 8:00 AM – 4:00 PM
    Thursday: 8:00 AM – 4:00 PM
    Friday: 8:00 AM – 2:00 PM
    Saturday: Closed
    Sunday: Closed
  • Reviews:
    Craig Ingram✭✭✭✭✭
    a month ago
    Our company’s website needed an overhaul. We were not getting many leads and the site was very basic and not ranking well on search engines. I contacted ZOO Media Group and had a free consultation with them on the phone. They were immediately able to recommend website improvements which included a full website renovation, adding more website pages, creative writing services and online marketing. They quoted everything within a day. They were very quick to respond to all my questions. They worked off our existing website framework and completely redesigned it, fixed all issues, including improving the SEO setup, and improved the website speed. They also designed our truck wrap too! They are now looking after my tree company’s digital marketing which is bringing in qualified leads and helping me grow my business. I am super pleased with the results and look forward to working with ZOO for many years to come. Thank you so much!
    Sandra McKenzie✭✭✭✭✭
    6 months ago
    I have been a regular client of ZOO Media Group for over 10 years. ZOO has provided me with numerous services, including branding, website design, and digital marketing. The ZOO team takes an approach that is both detail-oriented and creative, and that combination yields extraordinary results! Sandra and Chris are highly responsive and knowledgeable, and I have consulted with them quite regularly about various matters related to the growth of my group psychology practice.

    I highly recommend this company! I have been in business for 18 years and becoming a client of ZOO Media Group was truly one of the best decisions I have made.

    CAMT Office✭✭✭✭✭
    2 months ago
    Zoo Media has been an absolute pleasure to work with! Sandra and her team have created high quality, pleasing to the eye, easy to read documents for the Canadian Association of Music Therapists. We feel lucky to have found them and excited to continue working with them!
    Charlene McCue✭✭✭✭✭
    3 months ago
    Zoo Media, Sandra, and her team were very accommodating to our needs. We were working with tight timelines and they were able to produce our final product exactly how we wanted. I look forward to working with Zoo Media on other future projects.
    SarahRose Black✭✭✭✭✭
    2 months ago
    It has been an absolute pleasure to work with ZOO Media Group: Sandra and her team have been incredibly efficient, thoughtful, highly professional and a delight to collaborate with! We’re grateful for their expertise and excellent work!

Vector Marketing Canada

  • Address: 747 Hyde Park Rd Suite 108, London, ON N6H 3S3, Canada
  • Map: Click here
  • Rating: 4 (38)

SmartWebPros.com SEO & Web Design

  • Address: 217 Wharncliffe Rd S Suite E, London, ON N6J 2L2, Canada
  • Map: Click here
  • Rating: 4.7 (36)

sagecomm

  • Address: 117 York St Unit A, London, ON N6A 1A8, Canada
  • Map: Click here
  • Rating: 5 (34)

44 North Digital Marketing

  • Address: 224 Central Ave, London, ON N6A 1M8, Canada
  • Map: Click here
  • Rating: 4.9 (28)

tbk

  • Address: 562 Wellington St, London, ON N6A 3R5, Canada
  • Map: Click here
  • Rating: 4.5 (27)
Advertising Agency in London
Advertising Agency in London

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Top Advertising Agency Alternatives in London

The Biggest Advertising Agency in Canada

London is home to some of the top advertising agencies in the world. These agencies are known for their innovative campaigns and creative approach to advertising. Here are three of the top advertising agency alternatives that are very popular in London:

  • Wieden+Kennedy: Wieden+Kennedy is a global advertising agency that was founded in 1982. They are known for creating some of the most iconic and memorable advertising campaigns in the industry. Their clients include major brands such as Nike, Coca-Cola, and Old Spice. Wieden+Kennedy has a reputation for pushing boundaries and creating thought-provoking work that resonates with consumers. They have won numerous awards for their campaigns and are considered one of the top advertising agencies in London.
  • M&C Saatchi: M&C Saatchi is another top advertising agency in London that has been in the industry for over 25 years. They are known for their strategic approach to advertising and their ability to understand and connect with their clients’ target audiences. M&C Saatchi has worked with a wide range of clients across various industries, including automotive, fashion, and telecommunications. They have won numerous awards for their creative work and are considered one of the top advertising agencies in London.
  • Mother: Mother is a creative advertising agency that was founded in 1996. They are known for their unique and unconventional approach to advertising, and their ability to create campaigns that stand out from the crowd. Mother has worked with a diverse range of clients, including IKEA, Diageo, and Boots. They have won numerous awards for their creativity and innovative campaigns. Mother is known for their ability to think outside the box and create advertising that resonates with consumers.

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