ATG Entertainment
Leading global theatre production and operation company
Last updated August 31, 2026
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- Nov 4, 2026
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Overview
ATG Entertainment, formerly Ambassador Theatre Group, is a London-based theatre production and operation company that owns and operates venues in London's West End and New York's Broadway. Founded by Rosemary Squire in 1992, it has grown into one of the largest live entertainment companies globally.
Products and positioning
High-end live entertainment experiences
Product categories. Theatre operations · Theatrical production · Live entertainment
Recent events
- Unconfirmed
Reported
Mari agrees to acquire ATG Entertainment from Providence Equity Partners[1]
Mari, Ari Emanuel's global events and experiences company, has agreed to acquire U.K.-based theater giant ATG Entertainment from Providence Equity Partners in a multibillion-dollar deal. ATG operates 70 venues across the U.K., U.S., Germany and Spain, including 10 on London's West End and seven on Broadway.
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