Is Omnicom Group Inc. an American company?
Yes — Omnicom Group Inc. is an American company.
Omnicom Group Inc. is incorporated in New York, United States and headquartered in New York, New York. Its legal-entity record reports no foreign parent — the company is independently American-owned.
The evidence
- Legal name
- OMNICOM GROUP INC.
- Incorporated in
- New York, United States
- Registered office
- ALBANY, the United States
- Headquarters
- New York, New York, United States
- Ultimate owner
- None reported (independent)
- Stock listing
- NYSE: OMC on NYSE
- LEI
- HKUPACFHSSASQK8HLS17
Source: GLEIF, the global Legal Entity Identifier registry · checked Jul 26, 2026. A US headquarters or stock listing does not always mean US incorporation — this page reports what the legal-entity registry actually records.
Omnicom Group Inc.: origin questions
Is Omnicom Group Inc. an American company?
Yes — Omnicom Group Inc. is an American company. Omnicom Group Inc. is incorporated in New York, United States and headquartered in New York, New York. Its legal-entity record reports no foreign parent — the company is independently American-owned.
Where is Omnicom Group Inc. incorporated?
Omnicom Group Inc. is legally incorporated in New York, United States, according to its GLEIF legal-entity record.
Who owns Omnicom Group Inc.?
Omnicom Group Inc. reports no parent company in its legal-entity record — it is independently owned rather than a subsidiary.
Is Omnicom Group Inc. traded on a US stock exchange?
Yes — Omnicom Group Inc. trades under the ticker OMC on the NYSE.
See the full Omnicom Group Inc. company profile — financials, stock data and trust credentials — or browse the directory of American companies.