Direct Answer
Omnicom Group reports revenue across 7 product and service lines in its fiscal 2025 Form 10-K. Advertising is the largest, with $10.0 billion of revenue (58% of the total), followed by Precision Marketing at $1.9 billion (11%).
How Does Omnicom Group Make Money?
No single line supplies a majority of revenue: the largest, Advertising, is 58%, which spreads Omnicom Group's exposure across several demand drivers. Between fiscal 2024 and 2025, Experiential grew fastest (+19.9%) and Commerce and Branding slowest (-15.0%), so the revenue mix tilts toward Experiential while that gap lasts.
| Product or service | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| Advertising | $10.0 billion | $8.7 billion | 58.0% | 15.7% |
| Precision Marketing | $1.9 billion | $1.8 billion | 11.2% | 9.1% |
| Publicrelations | $1.6 billion | $1.6 billion | 9.3% | -1.7% |
| Health Care | $1.4 billion | $1.3 billion | 8.0% | 3.2% |
| Experiential | $863 million | $720 million | 5.0% | 19.9% |
| Execution Support | $844 million | $833 million | 4.9% | 1.3% |
| Commerce and Branding | $618 million | $726 million | 3.6% | -15.0% |
What the Segment Figures Do Not Show
The rows above add up to 100% of Omnicom Group's reported revenue for fiscal 2025; the difference is intersegment eliminations, corporate revenue or items the company reports outside its segments. Segment definitions are management's choice and change when a company reorganizes, in which case it restates prior years in the next filing, so a multi-year comparison should use the figures from a single filing. Revenue shows where sales come from, not where profit or cash is earned: a small segment can carry most of the margin.
Where These Numbers Come From
Every figure on this page is a value Omnicom Group reported in the segment note and revenue disclosures of its Form 10-K filed February 20, 2026 (accession 0000029989-26-000006), read from the SEC's Financial Statement Data Sets. The prior-year column is the comparative figure from that same filing, so it reflects any restatement for a change in segments. Category names are the company's own XBRL labels, lightly reformatted for reading.
Rows that only total other rows (for example a "Products" line beside the individual products) are left out so nothing is counted twice. This page is educational and describes reported history for fiscal 2025; it is not a forecast or a recommendation.
Frequently Asked Questions
What are Omnicom Group's main products and services?
In its fiscal 2025 Form 10-K, Omnicom Group reports revenue for Advertising, Precision Marketing, Publicrelations, Health Care, Experiential, Execution Support and Commerce and Branding.
Which part of Omnicom Group brings in the most revenue?
Advertising, with $10.0 billion of revenue in fiscal 2025, or 58% of the total.
Where does Omnicom Group report its segment results?
In the segment note to the financial statements in its Form 10-K, most recently filed February 20, 2026, alongside management's discussion of each segment's results.