The 15 Largest Marketing Companies In The World (2026 Edition)

Despite experiencing challenges in the early 2020s, the global marketing industry is on track to reach an impressive $769.9 billion by 2024. This growth is fueled by continuous advancements in artificial intelligence, enabling advertising agencies to optimize consumer data usage more effectively.

To better understand the current landscape of the marketing industry, let’s examine its leading players.

Here are the 15 largest advertising agencies in the world as of 2026:

1. Accenture Interactive. New York City, New York

   Stock Ticker: N/A
   Market Cap: $174.15 billion
   2026 Revenue: $62 billion

   Accenture Interactive is a wholly-owned subsidiary of Accenture, one of the largest professional services firms globally.

   With over 18,000 employees across 40 international offices, the company specializes in digital marketing services, including digital strategy, content management, and advertising. Accenture Interactive is recognized as one of Accenture’s fastest-growing divisions, contributing approximately 13% of its parent company’s revenue.

2. Deloitte Digital. New York City, New York

   Stock Ticker: N/A
   Market Cap: $200 billion
   2026 Revenue: $59.3 billion

   Deloitte Digital serves as the digital advertising arm of Deloitte, a leading consulting and professional services firm.

   Notably multifaceted, Deloitte Digital offers a range of services, including:

   • Logistics

   • Branding strategy

   • Cybersecurity

   • Data warehousing

   Founded in 2012, Deloitte Digital has quickly become one of the largest digital advertising firms globally, bolstered by strategic acquisitions facilitated by its parent company.

   For example, it owns the advertising agency Heat, known for its work on projects such as the Hotwire, EA Sports, and Madden NFL websites.

3. PwC Digital Services. Hallandale Beach, Florida

   Stock Ticker: N/A
   Market Cap: $168.12 billion
   2026 Revenue: $50.3 billion

   PwC Digital Services is the digital advertising division of PricewaterhouseCoopers (PwC), a prominent global network of accounting and consultancy firms.

   Employing over 10,000 workers worldwide, PwC Digital specializes in innovation, analytics, and mobile marketing within the digital advertising landscape.

4. WPP plc. England, United Kingdom

   Stock Ticker: NYSE: WPP
   Market Cap: $10.52 billion
   2026 Revenue: $17.847 billion

   WPP plc is the largest advertising company globally in terms of revenue, clientele, and workforce. As a multinational conglomerate, it also engages in related sectors like public relations, communications, and commerce.

   Originally founded in 1971 as Wire and Plastic Products plc, WPP expanded into advertising and digital media through over 100 strategic acquisitions, including the renowned branding agency Lambie-Nairn.

   As of 2026, WPP employs over 130,000 individuals and maintains a vast portfolio of businesses across 100 countries. Its subsidiaries, including VMLYR, Wunderman Thompson, and Ogilvy, specialize in diverse marketing fields such as:

   • Digital marketing

   • Healthcare advertising

   • Data management

   • Shopper marketing promotions

   • Sports marketing

5. Omnicom Group. New York City, New York

   Stock Ticker: NYSE: OMC
   Market Cap: $16.63 billion
   2026 Revenue: $14.29 billion

   Omnicom is a multinational corporate communications conglomerate, with subsidiaries providing four main services:

   • Advertising

   • Public relations

   • Customer relationship management

   • Specialty services

   As the second-largest advertising agency globally by revenue, Omnicom employs over 77,000 individuals in 100 countries. Founded in 1986 from a merger of Needham Harper Worldwide, Doyle Dane Bernbach, and BBDO Worldwide, Omnicom comprises five major agency networks overseeing more than 1,500 independent agencies.

   These subsidiaries focus on various industries, including:

   • Doyle Dane Bernbach (DDB). DDB owns Grupo ABC, Brazil’s largest advertising agency.
   • Omnicom Marketing Group. The media arm competing for the Network of the Year award at the Cannes Lions International Festival of Creativity.
   • TBWA Worldwide. Operates renowned networks like Media Arts Labs and Designory.
   • BBDO Worldwide. A digitally focused agency recognized for winning multiple creative marketing awards.
   • Needham Harper Worldwide. Operates numerous smaller firms focused on healthcare, vehicle testing, and events.

   Find Omnicom Group Jobs Near Me

6. Publicis Sapient. Boston, Massachusetts

   Stock Ticker: N/A
   Market Cap: $15.85 billion
   2026 Revenue: $13.792 billion

   Publicis Sapient, a subsidiary of Publicis, presents itself as a digital business marketing firm specializing in experiential marketing and innovation consulting.

   With over 20,000 employees worldwide, its primary operations are in the United States and India, where it has significantly expanded since the early 2000s. The company’s unique pricing model includes fixed-price, fixed-term contracts for its services.

   Find Publicis Sapient Jobs Near Me

7. Publicis Groupe. Paris, France

   Stock Ticker: EURONEXT: PUB
   Market Cap: $15.85 billion
   2026 Revenue: $13.50 billion

   Founded in 1926, Publicis Groupe is a global public relations and advertising agency that has significantly expanded since its inception.

   Now operating in 202 countries, the firm provides services including:

   • Digital and traditional advertising

   • Media services and marketing services (SAMS)

   • Public relations

   Publicis is structured into four divisions:

   • Communications. Includes creative networks like Leo Burnett, Nurun, and Saatchi & Saatchi.
   • Sapient. Houses subsidiaries such as Razorfish and DigitasLBi.
   • Healthcare. Operates firms like Saatchi & Saatchi Wellness and MORE.
   • Media. Partnered with Starcom Mediavest Group.

8. The Interpublic Group of Companies. New York City, New York

   Stock Ticker: NYSE: IPG
   Market Cap: $12.94 billion
   2026 Revenue: $10.93 billion

   The Interpublic Group of Companies, often referred to as IPG, is a multinational marketing conglomerate comprising five major advertising networks:

   • IPG Mediabrands. Focuses on media buying and data management, including agencies like Healix, ID Media, and Ensemble Worldwide.
   • FCB. Provides advertising and public relations services in healthcare, digital marketing, and sports marketing.
   • McCann Worldgroup. Employs over 24,000 workers across more than 100 subsidiaries.
   • MullenLowe Groupe. Formed in 2015 through a merger, specializing in brand strategy and communications planning.
   • Marketing Specialists. Offers diverse marketing services like content development and public relations.

   Find The Interpublic Group of Companies Jobs Near Me

9. Bluefocus Communication Group. Beijing, China

   Stock Ticker: SHE: 300058
   Market Cap: $25.832 billion
   2026 Revenue: $9.861 billion

   Bluefocus is among China’s largest branding and marketing agencies, established in 1996 and now operating in 100 offices across ten countries with over 6,000 employees.

   Since 2014, the company has focused on expanding its international presence, acquiring a majority stake in Fuseproject to enhance its advertising and design services in the U.S. Major clients include Lenovo, Tencent, and Samsung.

10. Dentsu International. London, United Kingdom

    Stock Ticker: N/A
    Market Cap: $8.20 billion
    2026 Revenue: $8.182 billion

    Dentsu International, formerly known as Dentsu Aegis Network, operates largely independently from its parent company, providing digital marketing and analytics services in over 145 countries with nearly 70,000 employees.

    It operates through subsidiaries such as:

    • Grip Limited. Specializes in TV sports advertising and branding strategy.
    • Gravity Media. A full-service ad agency based in New York City.
    • Global Mind. An interactive marketing agency based in Argentina.
    • M8. A Miami-based performance and digital marketing firm.

11. Havas. Paris, France

    Stock Ticker: OTCMKTS: HAVSF
    Market Cap: $4.568 billion
    2026 Revenue: $3.039 billion

    Havas is a global public relations and advertising company active in over 100 countries, organized into three primary segments:

    • Havas Creative Group. Focuses on innovation consulting, design, and sports marketing.
    • Havas Media Group. Specializes in media planning and buying, multimedia interactive services, and sales promotion.
    • Health You. Includes firms specializing in healthcare communications.

    One of Havas’ key initiatives is expanding into the cryptocurrency advertising sector, launching Havas Blockchain for blockchain and ICO marketing services.

12. Hakuhodo. Tokyo, Japan

    Stock Ticker: TYO: 2433
    Market Cap: $4.743 billion
    2026 Revenue: $1.335 billion

    Hakuhodo is Japan’s second-largest advertising agency, part of the DAC Consortium, a major global media group.

    While primarily operating in Japan, Hakuhodo also has a presence in:

    • The United States. Collaborates with Ketchum for PR services.
    • India. Operates through a joint venture with Percept.
    • Canada. Functions via its Montreal-based subsidiary Sid Lee.

13. MDC Partners. New York City, New York

    Stock Ticker: NASDAQ: MDCA
    Market Cap: $420 million
    2026 Revenue: $1.30 billion

    MDC Partners is a marketing and advertising holding company employing over 7,000 individuals across 50 partner firms.

    Operating under a partnership model, MDC acquires a majority stake in creative and digital firms while allowing them to operate independently. Most of its revenue is generated in the U.S., with significant investments in small to mid-sized agencies specializing in various advertising sectors.

    Notable partner firms include 6 Degrees, Albion, and Bruce Mau Design.

    Find MDC Partners Jobs Near Me

14. Dentsu. Tokyo, Japan

    Stock Ticker: TYO: 4324
    Market Cap: $35.02 billion
    2026 Revenue: $790.379 million

    Founded in 1901 as Japan Advertising Ltd., Dentsu is a global public relations and advertising firm with over 62,000 employees.

    In Japan, Dentsu operates through five regional divisions, while internationally, it owns agencies like Geneon Entertainment in North America and Aegis Group in the UK, which specializes in CRM, creative, and media services across 120 countries.

    Dentsu organizes its operations into four advertising business segments:

    • National advertising
    • Advertising-related services
    • Foreign market advertising
    • New market advertising

    Find Dentsu Jobs Near Me

15. Epsilon. Irving, Texas

    Stock Ticker: N/A
    Market Cap: $120.59 million
    2026 Revenue: $70 million

    Epsilon is a wholly-owned subsidiary of Alliance Data Systems Corp, specializing in digital strategy, customer insights, and loyalty marketing.

    Employing over 8,000 people globally, Epsilon has received numerous industry accolades, including top spots for World CRM/Direct Marketing Network and Largest U.S. Mobile Marketing Agency.

    Find Epsilon Jobs Near Me

Marketing Industry FAQ

1. What percentage of marketing is digital?

   As of 2026, digital marketing accounts for approximately 64.4% of total ad spending. This trend continues to grow as analytics improve and smartphone ownership rises, particularly in developed markets.

2. What is the highest-paid state for sales/marketing?

   The highest-paid state for sales/marketing is New Jersey, with an average salary of $61,522 per year. Other states with high average salaries include New York ($61,266), Connecticut ($60,854), Pennsylvania ($60,701), and Massachusetts ($58,256).

   New York City remains the top city for marketers, offering an average salary of $61,511 per year.

3. What is the worst state for sales/marketing?

   Utah holds the title for the lowest average salary for sales/marketing roles, at $29,228 per year. Other states with lower salaries include: Idaho ($29,663), Montana ($30,146), Kansas ($30,202), and Missouri ($31,067).

Author

Chris Kolmar

Chris Kolmar is a co-founder of Zippia and the editor-in-chief of the Zippia career advice blog. He has hired over 50 people in his career, been hired five times, and wants to help you land your next job. His research has been featured on the New York Times, Thrillist, VOX, The Atlantic, and a host of local news. More recently, he's been quoted on USA Today, BusinessInsider, and CNBC.