London is a hub for marketing agencies offering a wide range of services to businesses looking to enhance their marketing efforts. Here are some marketing agencies  London, as of my last knowledge update in September 2021. Please verify their current status, services, and reviews when considering them for your marketing needs: 

  • WPP: WPP is one of the world’s largest marketing and advertising conglomerates, and it has several agencies in London, including Ogilvy, J. Walter Thompson, and Grey, among others. 
  • BBH (Bartle Bogle Hegarty): BBH is a renowned global creative agency known for its innovative advertising and marketing campaigns. 
  • M&C Saatchi: M&C Saatchi is a global advertising and marketing agency with a London presence, offering creative, strategic, and digital services. 
  • Havas London: Havas is a global marketing and advertising agency network, and their London office offers a wide range of marketing services. 
  • VMLY&R: VMLY&R is a global marketing agency with expertise in branding, design, and digital marketing services. 
  • AnalogFolk: AnalogFolk is a digital creative agency that specializes in creating engaging digital experiences and campaigns. 
  • LIDA: LIDA is a customer engagement agency that focuses on data-driven marketing and customer relationship management. 
  • Saatchi & Saatchi: Saatchi & Saatchi is a global advertising and marketing agency known for its creative and strategic campaigns.