Who owns which agencies?

What is an agency holding company?

An agency holding company owns businesses that provide services such as advertising, media buying, public relations, design and digital marketing. Some groups retain distinct agency brands. Others organize their teams around a shared brand or operating model. This directory includes both holding companies and integrated agency groups because buyers need to understand the relationships behind the names on a shortlist.

The counts above represent published agencies in Agency Field Guide, not every subsidiary, office or affiliate owned by each group. Open a group page to understand its approach and explore its listed agencies.

How does ownership affect an agency search?

Shared ownership can give an agency access to additional specialists, production resources or technology. Whether your account benefits depends on the proposal. Ask which resources are included, who manages the other teams and how additional work is priced. A sister agency’s capabilities do not automatically become part of your contract.

Ownership also helps you understand your shortlist. Two agencies with different names may belong to the same group. That is useful context when discussing competing pitches, confidential information and the people assigned to your account. Ask about the actual arrangements instead of assuming shared ownership means shared staff.

Should you hire a group-owned or independent agency?

Start with the scope. A brief spanning several countries and disciplines may justify a coordinated group team. A focused project may be better served by a specialist with a simpler engagement. Neither ownership model guarantees senior attention, stronger work or better value. Compare the proposed people, relevant experience, responsibilities and total cost.

For a useful comparison, give each candidate the same written brief. Then use our guide to full-service and specialist agencies to decide how much coordination you want to buy and how much your team can manage.