The 10 Largest Recruiting Firms In The United States

Recruiting firms listed below act as intermediaries in the job market, bridging the gap between employers and candidates. While there are distinctions between staffing companies and recruitment agencies, most offer similar services today.

From temporary roles to temp-to-hire positions and direct hires, recruiters play a critical role in connecting candidates with employers. Professional recruiting generally encompasses positions with salaries under $100,000, while executive recruiting targets roles with salaries exceeding $100,000.

The staffing industry, valued at $185.5 billion in 2025, sees 85% of its revenue generated from temporary and contract positions. The United States remains the largest single market for temporary staffing globally.

Our compilation of the ten largest recruiting firms focuses on their revenue generated within the United States, with additional notes on their global revenue if headquartered abroad.

10 Largest Professional Recruiting Firms in the United States

1. Adecco Staffing USA. Jacksonville, Florida

   2025 Annual Revenue: $24.81 billion
   Current CEO: Alain Dehaze
   Number of Employees: 30,000+

   Adecco was established in 1996 through the merger of Swiss staffing firm Adia and French staffing firm Ecco. After acquiring Olsen Staffing in 2000, they expanded into the U.S. The company’s global headquarters is in Zurich, Switzerland, with U.S. headquarters in Jacksonville, Florida.

   With 450 locations across 60 countries, Adecco continues to grow. They are a leading player in the industry, providing temporary placements, temp-to-hire opportunities, and direct hires across various sectors, including accounting, finance, and customer service.

   Adecco stands out by offering benefits to their temporary workers and is recognized as a military-friendly employer, earning accolades for their support of military personnel and their families.

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2. ManpowerGroup. Milwaukee, Wisconsin

   2025 Annual Revenue: $19.8 billion
   Current CEO: Jonas Prising
   Number of Employees: 30,000+

   Founded in 1948 by Elmer Winter and Aaron Scheinfeld, ManpowerGroup originated from a need for temporary staffing solutions. The company quickly expanded throughout the U.S. and internationally, establishing a presence in Canada and the UK by 1956.

   Today, ManpowerGroup boasts over 3,000 offices in more than 80 countries and includes numerous subsidiaries. They offer contingent, permanent, and contract-to-permanent opportunities, collaborating with organizations like the National Association of Manufacturers and AARP.

   Jonas Prising has served as CEO since 2014.

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3. Allegis Global Solutions. Hanover, Maryland

   2025 Annual Revenue: $13.40 billion
   Current CEO: Todd M. Mohr
   Number of Employees: 19,000+

   Founded as Aerotek in 1983 by Steve Sisciotti and Jim Davis to serve the aerospace and defense sectors, Allegis rapidly expanded to other industries, earning over $1 million in its first year. By 1995, the company had gone international, setting the stage for the formation of Allegis Group.

   Allegis Group now encompasses various sectors, including technology and engineering, with brands such as Aerotek and TEKsystems focusing on specialized recruitment.

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4. Robert Half International. Menlo Park, California

   2025 Annual Revenue: $7.24 billion
   Current CEO: Keith Waddel
   Number of Employees: 13,000+

   Founded in 1948 by Bob and Maxine Half, Robert Half International has a legacy of advocating for fair recruiting practices. The firm has garnered numerous accolades, including recognition as one of Fortune’s “Most Admired Companies” and awards for diversity and inclusion.

   While maintaining its global footprint, Robert Half remains a leading name in U.S. recruitment, with its first international office opening in London in 1973.

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5. Kelly Services. Tory, Michigan

   2025 Annual Revenue: $5.00 billion
   Current CEO: Peter Quigly
   Number of Employees: 7,800+

   Recognized as a leader in staffing since its inception in 1946, Kelly Services initially focused on clerical staffing. The company expanded internationally in 1968 and has been acknowledged for its commitment to remote work opportunities.

   Kelly Services has been listed among the “Top 100 Companies to Watch for Remote Jobs” and received awards for its professional development initiatives.

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6. Randstad North America. Atlanta, Georgia

   2025 Annual Revenue: $4.90 billion
   Current CEO: Karen Fichuk (USA)
   Number of Employees: 38,000+

   Randstad stands as the largest staffing company globally, despite being second in U.S. revenue. Founded in 1960, Randstad has significantly expanded its reach, with offices across multiple countries and a strong presence in the U.S. since 1993.

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7. Express. Oklahoma City, Oklahoma

   2025 Annual Revenue: $4.46 billion
   Current CEO: William H. Stoller
   Number of Employees: 526,000+

   Founded in 1983, Express Employment has grown rapidly, achieving over $1 billion in revenue consistently since 1999. The company has embraced franchising and has over 830 locations worldwide.

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8. EmployBridge. Atlanta, Georgia

   2025 Annual Revenue: $3.80 billion
   Current CEO: Micheal Miles
   Number of Employees: 5,600

   EmployBridge, a major player in Atlanta’s staffing market, operates 400 locations across the U.S. Established in the 1990s through several mergers, the company has continued to grow and expand its services, including temporary and permanent placements across various sectors.

9. TrueBlue. Tacoma, Washington

   2025 Annual Revenue: $2.30 billion
   Current CEO: Patrick Beharelle
   Number of Employees: 5,200

   Originally Labor Ready, Inc., founded in 1989, TrueBlue underwent a rebranding in 2008 and operates several brands, including PeopleReady. The company is committed to assisting various demographics, including veterans and the long-term unemployed, through its initiatives.

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10. Act 1 Group. Glendale, California

    2025 Annual Revenue: $1.10 billion
    Current CEO: Janice Bryant Howroyd
    Number of Employees: 2,800+

    Founded in 1978 by Janice Bryant Howroyd, ActOne is the largest private minority-woman-owned workforce management company in the U.S. It provides staffing solutions across various sectors, including healthcare and technology, and has a strong presence in government contracting.

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Recruitment Statistics FAQ

1. What is the most effective method of recruitment?

   The most effective method of recruitment is employee referrals. Employee referrals account for 30-50% of all hires.

   Other effective recruitment methods include:

   • Job Boards/Job Postings

   • Online Advertising

   • Social Media

   • Recruitment Agencies

   • Recruitment Events

   • Professional Networks

   • Talent Pool Databases

2. What percentage of recruiters use social media?

   94% of recruiters utilize social media. LinkedIn is the most widely used platform, with 90% of recruiters employing it, followed by Facebook (55%) and Twitter (47%).

   Notably, 37% of job seekers are passive candidates, making social media essential for recruiters to discover hidden talent.

3. How effective is social media for recruitment?

   Social media is highly effective for recruitment. 71% of hiring managers consider social media profiles an effective way to assess job applicants.

   Moreover, 56% of recruiters report finding the best candidates through social media, making it a leading channel for sourcing top talent.

Author

Samantha Goddiess

Samantha is a lifelong writer who has been writing professionally for the last six years. After graduating with honors from Greensboro College with a degree in English & Communications, she went on to find work as an in-house copywriter for several companies including Costume Supercenter, and Blueprint Education.