F
FleishmanHillard
St. Louis, Missouri, United States · Founded 1946
Sourced & current · updated May 12, 2026Website
Major global PR network; founded 1946 in St. Louis. Post Q1 2026 Omnicom restructure, FleishmanHillard absorbed Porter Novelli (which now operates as a sub-brand within FH).
Where they sit
Stack tier: Ecosystem Services (A)
Top global PR network; absorbing Porter Novelli post-merger
Ownership
Parent: Omnicom Group