2025 U.S.-Booked Air Volume: $70.5M
Consolidated Global TMC: BCD
Marketing and sales group Omnicom returns to the BTN Corporate Travel 100 after a year’s absence. In November 2025, Omnicom completed a merger with major rival Interpublic Group, with 60.5 percent of equity in the combined company allotted to shareholders of the former and 39.4 percent to shareholders of the latter. The deal was announced in December 2024 but faced extended regulatory scrutiny on both sides of the Atlantic.
Following closure of the acquisition, Omnicom chairman and CEO John Wren told shareholders the company had “identified smaller markets and non-strategic or underperforming operations representing approximately $3.2 billion of annual combined revenue that we plan to sell or exit.” As of December 2025, the company had 120,000 employees, of whom 37,700 were in the Americas. However, in addition to the plan for disposals, Wren anticipated cost savings of $900 million in 2026 and $1.3 billion in 2027, “expected to come primarily from labor efficiencies, real estate consolidation, and reductions in G&A [general and administrative expenses], IT, procurement and other operating costs.”
Revenue at pre-merger Omnicom in 2025 was $17.3 billion, up from $15.7 billion in 2024. According to its 2025 annual report, third-party incidental costs, which "primarily consist of client-related travel and out-of-pocket costs," increased "$109.9 million, or 17.1 percent, to $752.4 million, primarily due to the revenue growth and the effects of including one month of [Interpublic Group] costs." BTN estimates Omnicom's U.S.-originating air spend in 2025 at $70.5 million.