Omnicom’s acquisition of IPG gets green light in 14/18 markets

In a major development that brings the industry-shaping merger closer to reality, Omnicom’s proposed acquisition of Interpublic Group got the approval of Australian Competition and Consumer Commission (ACCC) last week.

With this, the total number of regulatory clearances stands at 14 out of the 18 required. “The companies remain firmly on track to complete the transaction in the second half of 2025,” Omnicom and IPG said in a statement.

Other key approvals have come from China, India, Japan, Brazil, Egypt, Singapore, Colombia, and Saudi Arabia.

Crucial markets such as the United States, European Union and United Kingdom are still in the review phase. However, the proposal has already received overwhelming stockholder support in the U.S., with more than 90% of shareholders from both companies voting in favour.

Countdown Begins For Q4

With no significant hurdles reported so far, industry insiders anticipate a Q4 2025 closure, positioning the deal as a turning point for global agency networks.

Globally, Omnicom and Interpublic are two of the most influential agency groups. Omnicom reported $15.7 billion (₹1.3 lakh crore) in global revenue in 2024, roughly 35% higher than IPG’s $10.7 billion (₹88,810 crore), reinforcing its dominant scale on the global stage.

However, in India, the narrative flips. IPG’s media agencies—Lodestar UM, Initiative, and Interactive Avenues—have historically maintained a stronger local footprint, particularly in digital and media planning. Omnicom Media Group (OMG), while strong globally, has comparatively lower scale in India.

This merger presents a rare case of complementary strengths: Omnicom brings global heft; IPG brings local depth. Industry observers suggest the India integration will require careful brand alignment, leadership harmonization, and possibly dual-branding strategies in the near term.

Omnicom, known for its data-inspired and creative marketing solutions, boasts a network of iconic agency brands delivering strategic media, precision marketing, and communications services across 70+ countries. Its portfolio spans over 5,000 clients globally.

Interpublic, a values-led and creatively driven group, is home to globally recognized brands such as McCann, FCB, UM, IPG Mediabrands, and Weber Shandwick. The combined force of Omnicom and IPG is expected to usher in a bold new era for the marketing ecosystem—where data, creativity, and global scale converge to drive next-generation growth.

Further Consolidation Expected

Experts believe once the acquisition takes shape, further consolidation across in the advertising industry is likely as agencies race to realign strategies for a changing market.

Touted as one of the most consequential mergers in the global advertising and marketing services industry, the proposed deal is expected to reshape the agency landscape, unlock new synergies, and deliver enhanced value to clients, talent, and shareholders alike.

Sources close to the deal suggest that both Omnicom and IPG have proactively addressed potential antitrust issues by mapping overlapping verticals and offering mitigation strategies, including selective divestitures or structural safeguards.

With no significant hurdles reported so far, industry insiders anticipate a Q4 2025 closure, positioning the deal as a turning point for global agency networks. Experts believe it may trigger further consolidation across holding companies as they race to realign strategies for a changing market.

As India’s advertising market grows into one of the most vibrant globally, the combined presence of Omnicom and IPG will be closely watched, both for market competitiveness and client servicing agility.