Who are Omnicom Group Inc.'s main suppliers?

Omnicom Group Inc. (OMC) key suppliers include: WW International, Inc., CI&T Inc., Super League Enterprise, Inc., Stagwell Inc., dMY Squared Technology Group Inc and 2 more. View the full supplier network at chainsifter.com/chain/OMC.

Who are Omnicom Group Inc.'s major customers?

Omnicom Group Inc. (OMC) key customers include: 100-LARGEST-CLIENTS, LARGEST-CLIENT, TEN-LARGEST-CLIENTS, THE-INTERPUBLIC-GROUP-OF-COMPANIES-INC, DAS-GROUP and 2 more. View the full customer network at chainsifter.com/chain/OMC.

What sector is Omnicom Group Inc. in?

Omnicom Group Inc. (OMC) operates in the general sector. ChainSifter tracks its verified supply chain relationships including suppliers, customers, and strategic partners.

Omnicom Group Inc. Supplier List (OMC): 7 Verified Suppliers

7Suppliers

7Customers

2Debt Items

20Related Chains

Source-Backed Evidence Depth

Omnicom Group Inc. (OMC) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.

16Total relationships

2Distinct source URLs

7High confidence

0.763Average confidence

2026-09-13Latest database update

ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.

Omnicom Group Inc. Suppliers

Ticker	Name	Confidence	Evidence
WW	WW International, Inc.	85%	Reciprocal relationship from WW graph: Ms. Brown held various roles at RAPP Dallas (a part of the Omnicom Group)
CINT	CI&T Inc.	72%	Reciprocal relationship from CINT graph: Reciprocal relationship from OMC graph: Reciprocal relationship from CINT graph: utions Corporation and Tata Consultancy Services Limited. To a lesser extent,…
SLE	Super League Enterprise, Inc.	72%	Reciprocal relationship from SLE graph: Reciprocal relationship from OMC graph: Reciprocal relationship from SLE graph: s. These studios typically compete on creative capabilities, platform expertise…
STGW	Stagwell Inc.	72%	Reciprocal relationship from STGW graph: ow AI can transform consumer and digital experiences. Finally, marketing technology is transforming the industry. SaaS and DaaS products are increasing the ef…
DMYY	dMY Squared Technology Group Inc	62%	Reciprocal relationship from DMYY graph: Reciprocal relationship from OMC graph: Reciprocal relationship from DMYY graph: Reciprocal relationship from OMC graph: Reciprocal relationship from DMYY gra…
ONIT	Onity Group Inc.	62%	Reciprocal relationship from ONIT graph: OVERVIEW General We are a leading non-bank mortgage servicer and originator providing solutions through our primary brand, Onity Mortgage (formerly PHH Mortga…
SMWB	Similarweb Ltd.	62%	Reciprocal relationship from SMWB graph: Reciprocal relationship from OMC graph: Reciprocal relationship from SMWB graph: Reciprocal relationship from OMC graph: Reciprocal relationship from SMWB gra…

Omnicom Group Inc. Customers

Ticker	Name	Confidence	Evidence
100-LARGEST-CLIENTS	100-LARGEST-CLIENTS	92%	Our ten largest and 100 largest clients represented 16.4% and 52.5% of revenue for the twelve months ended March 31, 2026, respectively, and 19.1% and 53.6% of revenue for the twelve months ended Mar…
LARGEST-CLIENT	LARGEST-CLIENT	92%	Our largest client represented 2.2% and 2.7% of revenue for the twelve months ended March 31, 2026 and 2025, respectively.
TEN-LARGEST-CLIENTS	TEN-LARGEST-CLIENTS	92%	Our ten largest clients represented 16.4% and 52.5% of revenue for the twelve months ended March 31, 2026, respectively, and 19.1% and 53.6% of revenue for the twelve months ended March 31, 2025, res…
THE-INTERPUBLIC-GROUP-OF-COMPANIES-INC	THE-INTERPUBLIC-GROUP-OF-COMPANIES-INC	92%	Omnicom Group Inc. is hosting an Investor Day on March 12, 2026 to present the Company’s growth strategy following the acquisition of The Interpublic Group of Companies, Inc.
DAS-GROUP	DAS-GROUP	62%	disruption in the credit markets; • the ability to attract new clients and retain existing clients in the manner anticipated; • changes in client marketing and communications services requirements; •…
OMNICOM-CAPITAL-HOLDINGS	OMNICOM-CAPITAL-HOLDINGS	62%	upancy and other costs 527.3 8.4 % 314.6 8.5 % 212.7 67.6 % Loss on assets held for sale and dispositions 34.3 0.5 % — — % 34.3 — % Severance and repositioning costs 4.1 0.1 % — — % 4.1 — % Cost of s…
OMNICOM-FINANCE-HOLDINGS	OMNICOM-FINANCE-HOLDINGS	62%	upancy and other costs 527.3 8.4 % 314.6 8.5 % 212.7 67.6 % Loss on assets held for sale and dispositions 34.3 0.5 % — — % 34.3 — % Severance and repositioning costs 4.1 0.1 % — — % 4.1 — % Cost of s…

Omnicom Group Inc. Debt Obligations

Instrument	Description	Confidence	Evidence
OMC-DEBT-7319	Xbrl Convertible	90%	xbrl convertible detail from xbrl 2014-12-31.
OMC-DEBT	Debt stack $9.8B	90%	Market cache reports total debt of $9.8B.

Omnicom Group Inc. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Omnicom Group Inc..

Omnicom Group Inc. Ownership

No ownership data on recordNo major institutional ownership relationships found in our database for Omnicom Group Inc..

Omnicom Group Inc. Extended Supply Chain Network

Ticker	Name	Chain Index	Hops	Relationship Types
DAVA	Endava plc	100.00	2
DMYY	dMY Squared Technology Group Inc	100.00	1	['supplier']
JNJ	Johnson & Johnson	100.00	2
THREE	THREE	100.00	2
APP	AppLovin Corporation	100.00	2
CTSH	Cognizant Technology Solutions Corporation	100.00	2
STGW	Stagwell Inc.	100.00	1	['supplier']
GLOB	Globant S.A.	100.00	2
ONIT	Onity Group Inc.	100.00	1	['supplier']
WW	WW International, Inc.	100.00	1	['supplier']
WPPGF	WPP plc	100.00	2
ACN	Accenture plc	100.00	2
SMWB	Similarweb Ltd.	100.00	1	['supplier']
UNF	UniFirst Corporation	50.00	2
EQH	Equitable Holdings, Inc.	50.00	2
ADBE	Adobe Inc.	50.00	2
FOA	Finance of America Companies Inc.	50.00	2
ASPS	Altisource Portfolio Solutions S.A.	50.00	2
DELL	Dell Technologies Inc.	50.00	2
GOOG	Alphabet Inc.	50.00	2

Omnicom Group Inc. Supply Chain