J
J. Walter Thompson
RebrandedNew York, New York, United States · Founded 1896
10001+ employees
Sourced & current · updated Oct 26, 2026
J. Walter Thompson, which ultimately became part of VML following a series of mergers, was an advertising holding company incorporated in 1896 that grew into one of the most influential agencies in the world before being merged with Wunderman to form Wunderman Thompson in 2018, and then combined with VMLY&R to create VML in 2023.
Where they sit
Stack tier: Core Platforms (S)
Marketing Agency
Once the world's largest and most influential advertising agency by billings for five decades, JWT was ultimately absorbed into VML via the Wunderman Thompson merger, ending its independent brand identity.
Ownership
Parent: WPP