# Omnicom Media Group
> OMG · 195 Broadway, New York, New York
- Profile type: Company
- Profile status: baseline
- Last updated: 2026-05-03T00:00:00.000Z
- Canonical URL: https://thestateofstreaming.com/companies/omnicom-media-group/
- Also known as: OMG, Omnicom Media, Omnicom Media Group Holdings, OmnicomMediaGroup, Omnicom Media Group Holdings LLC
## Summary
Omnicom Media Group (OMG) is the media-services division of Omnicom Group (NYSE: OMC), comprising OMD, PHD, Hearts & Science, and the Annalect data unit, powered by the proprietary Omni platform. CEO Florian Adamski leads the division, which rebranded as Omnicom Media following the November 2025 IPG acquisition and now houses six agency networks — adding UM, Initiative, and Mediahub — making it the world's largest media organization by billings at roughly $73.5 billion annually.

## Company facts

- Founded: 2005
- Headquarters: 195 Broadway, New York, New York
- Domain: omnicommediagroup.com
- CEO: florian adamski (https://thestateofstreaming.com/people/florian-adamski/)


## Key facts

- Omnicom Media Group is the media-services arm of Omnicom Group (NYSE: OMC), encompassing OMD, PHD, Hearts & Science and the Annalect data, technology and analytics unit, and operates across 70-plus markets from headquarters at 195 Broadway in New York. — Omnicom Media (corporate site): https://omnicommedia.com/
- Florian Adamski continues as global CEO of the media division — a role he has held since 2021 — leading the renamed 'Omnicom Media' platform that now houses six agency brands following the November 2025 Omnicom-IPG merger: OMD, PHD, Hearts & Science, UM, Initiative and Mediahub. — Omnicom Media Transform / AdAge CES 2026 interview: https://transform.omnicommedia.com/omnicoms-top-media-executive-on-post-ipg-acquisition-strategy-and-the-2026-new-business-climate/
- Following the November 2025 close of the Omnicom-IPG transaction, Omnicom retired the IPG Mediabrands holding-company identity and folded UM, Initiative and Mediahub into the unified Omnicom Media platform; the combined unit oversees approximately $73.5 billion in annual billings. — Storyboard18: https://www.storyboard18.com/advertising/omnicom-retires-ipg-mediabrands-folds-um-initiative-mediahub-into-single-omnicom-media-platform-after-merger-shake-up-85123.htm
- Annalect, OMG's data, technology, analytics and AI subsidiary, is headquartered in New York with more than 5,000 data professionals globally and powers the Omni platform alongside Acxiom (identity / Real ID) and Flywheel (commerce data) — all assets now consolidated under Omnicom Media's tech stack. — Annalect: https://www.annalect.com/about/
- OMD Worldwide Chief Media Officer Ben Hovaness was named buy-side co-chair of the IAB Tech Lab's Programmatic Governance Council at the council's launch on April 21, 2026, and co-authored the body's charter with Tech Lab CEO Anthony Katsur. — AdExchanger: https://www.adexchanger.com/technology/the-tech-labs-new-programmatic-governance-council-is-so-over-all-the-ad-tech-drama/
- OMG is one of the legacy 'Big Four' media-holdco buyers — alongside WPP Media (formerly GroupM), Publicis Media and Dentsu — with IPG's Mediabrands now folded in as a sister division within the combined Omnicom parent rather than an independent fifth competitor. — Ad Age: https://adage.com/agencies/aa-omnicom-ipg-post-merger-structure-media-tech-creative/


## Related

- omnicom group (Parent holding company (NYSE: OMC)) — https://thestateofstreaming.com/companies/omnicom-group/
- omd (Subsidiary agency (largest of the OMG networks)) — https://thestateofstreaming.com/companies/omd/
- phd (Subsidiary agency) — https://thestateofstreaming.com/companies/phd/
- hearts and science (Subsidiary agency) — https://thestateofstreaming.com/companies/hearts-and-science/
- annalect (Subsidiary data, technology and analytics unit) — https://thestateofstreaming.com/companies/annalect/
- mediabrands (Sister media division within the combined Omnicom holdco post-November-2025 IPG acquisition; Mediabrands brand to be retired) — https://thestateofstreaming.com/companies/mediabrands/
- interpublic group (Former parent of Mediabrands; acquired by Omnicom Group in November 2025) — https://thestateofstreaming.com/companies/interpublic-group/
- ben hovaness (Chief Media Officer at subsidiary OMD; OMG's senior buy-side voice in industry standards work) — https://thestateofstreaming.com/people/ben-hovaness/


## External coverage

- Omnicom Media: Omnicom Media — corporate site (https://omnicommedia.com/)
- Omnicom Media: Omnicom Media Transform — leadership commentary and industry analysis (https://transform.omnicommedia.com/)
- Annalect (Omnicom Media): Annalect — OMG's data, technology and analytics unit (https://www.annalect.com/)
- 2026-04-21 — AdExchanger: The Tech Lab's New Programmatic Governance Council Is So Over All The Ad Tech Drama (https://www.adexchanger.com/technology/the-tech-labs-new-programmatic-governance-council-is-so-over-all-the-ad-tech-drama/)
- Ad Age: Inside Omnicom's new structure — how media, tech and creative will operate after IPG deal (https://adage.com/agencies/aa-omnicom-ipg-post-merger-structure-media-tech-creative/)

## Profile
Omnicom Media Group is the media-buying arm of Omnicom Group (NYSE: OMC), formed in 2005 to coordinate the holding company's media-services networks. It houses OMD Worldwide, PHD, Hearts & Science and the Annalect data-and-analytics subsidiary, with the proprietary Omni platform — fed by Acxiom identity and Flywheel commerce signals — operating as the cross-agency tech layer.

We track OMG because its agency networks sit on the buy side of nearly every consequential CTV, programmatic, identity and measurement-currency conversation in the industry. OMD Chief Media Officer Ben Hovaness was named buy-side co-chair of the IAB Tech Lab's Programmatic Governance Council at the council's April 21, 2026 launch, putting OMG's senior media voice at the center of governance work over the $200 billion programmatic market. The unit's scale — six agency networks and ~$73.5 billion in billings post-merger — makes its policy positions, principal-buying disclosures and tech-stack choices read as industry weather, not single-company news.

The November 2025 close of Omnicom Group's acquisition of Interpublic Group reshaped the unit. Omnicom retired the IPG Mediabrands holding-company brand and folded UM, Initiative and Mediahub into a single Omnicom Media platform under Florian Adamski, who has been global CEO of the media division since 2021. Mediabrands now appears in our coverage as a sister media division inside the combined Omnicom holdco rather than an independent fifth Big-Four competitor — a structural shift that reframes every prior comparison of agency-network billings, principal-media exposure and walled-garden negotiating leverage.
## Coverage on The State of Streaming
- [IAB Tech Lab's New Transparency Council Seats Holdcos, Not Brands](https://thestateofstreaming.com/advertising-adtech/2026/04/iab-tech-lab-pgc-leap-launch/) — 2026-04-26

## Tags

- holdco-media
- media-buying
- agency
- big-four
- ipg-merger
- programmatic
- addressable-tv
- identity
- measurement

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