What Omnicom Group is and why it matters to advertisers

Omnicom Group is one of the largest advertising and marketing holding companies in the world. It owns hundreds of agencies under different brand names — BBDO, DDB, TBWA, and others — that handle advertising, public relations, media planning, and digital marketing for major brands. If you work in advertising or are trying to understand how big advertising agencies are structured, Omnicom is a company you will encounter.

Omnicom does not run a single advertising agency. Instead, it owns a network of separate agencies that compete with each other and work for different clients. This structure means that when you hire an Omnicom agency, you are hiring one of its subsidiaries, not Omnicom itself. Understanding this matters because it affects which team you work with, how decisions get made, and what services are available to you.

The company is publicly traded on the New York Stock Exchange under the ticker OCMP. It is headquartered in New York City and operates in more than 100 countries. For people working in advertising or marketing roles, or for business owners evaluating agency options, knowing Omnicom's structure and reach helps you understand the landscape you are working in.

Key Takeaways

  • Omnicom Group owns multiple advertising agencies under different brand names, each operating as a separate business rather than as one unified agency.
  • Major Omnicom agencies include BBDO, DDB, and TBWA, each with its own client list, creative team, and specializations.
  • Omnicom agencies handle advertising, media planning, public relations, and digital marketing services across industries and geographies.
  • The holding company structure means Omnicom provides financial backing and shared services, but individual agencies maintain their own identities and client relationships.

The major agencies owned by Omnicom

BBDO is one of Omnicom's largest and oldest agencies, founded in 1891. It handles major consumer brands and is known for television and traditional advertising campaigns. BBDO operates globally and has offices in most major cities.

DDB (Doyle Dane Bernbach) is another flagship Omnicom agency, founded in 1949. DDB specializes in creative advertising and has worked on long-running campaigns for well-known brands. Like BBDO, DDB operates internationally and maintains separate offices and teams in different regions.

TBWA is an Omnicom agency focused on creative and digital work. It operates under the TBWA brand globally and is known for innovation-focused campaigns. TBWA also owns Backslash, a digital-first agency within the Omnicom network.

Omnicom also owns agencies focused on specific services: OMD handles media planning and buying, Fleishman Hillard specializes in public relations, and Ketchum provides communications and PR services. The company continues to acquire or launch new agencies, so the full list changes over time. Each agency maintains its own client relationships and operates with its own leadership, even though Omnicom owns them all.

How Omnicom's holding company structure works

Omnicom Group functions as a holding company, meaning it owns other companies but does not directly run their day-to-day operations. Each agency under Omnicom has its own leadership team, client accounts, and creative staff. When you work with a BBDO team, you are working with BBDO employees and leadership, not Omnicom employees.

The holding company provides several things to its agencies: financial resources, access to shared technology platforms, back-office support like accounting and human resources, and the ability to move talent between agencies when needed. Omnicom also coordinates across agencies when a client needs services that span multiple specialties — for example, a brand might use BBDO for advertising, OMD for media buying, and Ketchum for public relations, all coordinated through Omnicom's structure.

This structure has advantages and disadvantages. Agencies can stay independent and focused on their own clients and culture, which many believe produces better creative work. But it also means there is sometimes overlap or competition between Omnicom agencies, and coordination across multiple agencies can be slower than working with a single unified firm.

What services Omnicom agencies provide

Omnicom agencies collectively offer most services a brand might need for marketing and communications. These include traditional advertising (television, radio, print), digital advertising (search, social media, display), media planning and buying, public relations, brand strategy, market research, and content creation.

Different Omnicom agencies specialize in different areas. Some focus on large consumer brands and mass-market campaigns. Others specialize in digital-native work, healthcare marketing, or B2B communications. When a company chooses an Omnicom agency, it is choosing a specific agency within the group based on that agency's informed and client fit, not Omnicom as a whole.

The scale of Omnicom means its agencies have resources that smaller independent agencies may not have: large research teams, proprietary data and analytics tools, and the ability to execute campaigns across many countries simultaneously. For brands operating globally or needing complex, multi-channel campaigns, this scale can be valuable.

How Omnicom compares to other major advertising groups

Omnicom is one of four or five companies that dominate global advertising. WPP Group (which owns Ogilvy, Grey, and others) and Publicis Groupe (which owns Saatchi & Saatchi, Leo Burnett, and others) are similarly sized holding companies. Interpublic Group owns McCann and Lowe's. These companies compete for the same large clients and operate in similar ways — as holding companies that own multiple agencies.

The main differences between these groups are which agencies they own, their geographic strengths, and their specializations. Omnicom is particularly strong in traditional advertising and consumer brands. WPP has significant strength in digital and data services. Publicis has invested heavily in marketing technology. But all four groups offer overlapping services and compete for the same business.

Smaller, independent advertising agencies exist outside these holding companies and may offer more specialized services, closer client relationships, or different creative approaches. The choice between a large holding company agency and an independent agency depends on what a brand values: scale and resources versus independence and focus.

How to work with an Omnicom agency

If you are a business owner or marketer considering an Omnicom agency, you do not contact Omnicom itself. You contact the specific agency you are interested in — BBDO, DDB, TBWA, or another Omnicom subsidiary. Each agency has its own business development team, website, and process for taking on new clients.

When you pitch to an Omnicom agency, you are pitching to that agency's leadership and creative team. The agency will evaluate whether your business, budget, and needs fit with their current client list and capabilities. Omnicom's role is largely behind the scenes: providing financial backing, shared services, and coordination if you need work across multiple Omnicom agencies.

Omnicom agencies typically work with larger brands that have substantial marketing budgets. Smaller businesses may find independent agencies or smaller agency groups more accessible. But if you are a mid-sized to large brand looking for a major agency partner, Omnicom agencies are among the options you will evaluate.

Why Omnicom's structure matters for the advertising industry

Omnicom's holding company model has shaped how the advertising industry is organized. By owning multiple agencies, Omnicom can offer clients a range of options and specializations without forcing them into a single agency structure. This has become the dominant model in global advertising — most large agencies are now owned by one of a few holding companies.

The concentration of agencies into a few large holding companies has changed the industry in other ways too. It has made it easier for large brands to consolidate their spending with one holding company, which can simplify management but also reduce competition. It has also created career paths where talented people move between agencies within the same holding company, building experience across different client types and specializations.

For advertisers and marketers, understanding Omnicom's structure helps explain why the advertising industry looks the way it does: why there are so many agency names but they are owned by a few companies, why coordination across services can be complex, and why large brands often work with multiple agencies from the same holding company.

Frequently Asked Questions

Is Omnicom Group itself an advertising agency?

No. Omnicom Group is a holding company that owns advertising agencies. It does not directly provide advertising services. When you work with an Omnicom agency, you work with one of its subsidiaries like BBDO or DDB, not with Omnicom itself.

Can I hire multiple Omnicom agencies for one campaign?

Yes. Many large brands use multiple Omnicom agencies for different parts of their marketing — for example, BBDO for creative advertising, OMD for media buying, and Ketchum for public relations. Omnicom coordinates across these agencies, though each operates independently.

What is the difference between BBDO, DDB, and TBWA?

All three are Omnicom agencies, but they have different histories, client lists, and specializations. BBDO is known for traditional consumer advertising. DDB focuses on creative work. TBWA emphasizes innovation and digital. Each maintains its own identity and competes for clients independently.

Does Omnicom own all the major advertising agencies?

No. Omnicom is one of four or five major holding companies. WPP Group, Publicis Groupe, and Interpublic Group own other large agencies. Some independent agencies also exist outside these holding companies, though most large agencies are now owned by one of these groups.

How do I contact an Omnicom agency about working together?

Contact the specific agency directly through its website or business development team. Each Omnicom agency has its own contact process and decision-making structure. Omnicom itself does not handle client pitches — the individual agencies do.