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Compare GroupM vs A21

Side-by-side comparison of features, pricing, services, ratings and more.

GroupM Agency logo

GroupM

Multi-Channel Outreach Website

GroupM is the leading global media investment management operation and parent company to WPP media agencies including Mindshare, MEC, MediaCom and Maxus. It focuses on maximizing performance through trading, content creation, digital, and proprietary tools.

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A21 Agency logo

A21

Multi-Channel Outreach Website

A21 produces events, creates experiences, and activates partnerships. The agency handles national tours, art exhibits, music festivals, and intimate dining moments.

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Feature Comparison

Attribute GroupM A21
Category Multi-Channel Outreach Multi-Channel Outreach
Rating - -
Location New York, NY, United States Miami, Florida, United States
Services
  • Media Planning & Strategy
  • Event Marketing
  • Media Planning & Strategy
  • Event Marketing
Pros
  • Global scale and reach as the world's largest media investment group.
  • Access to WPP's network of agencies and proprietary data tools.
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Website Visit Site Visit Site
Free Plan Available

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