Top 10 U.S.-Based Recruitment Companies

Recruitment in 2025 demands more than matching resumes with job descriptions. Today’s top recruitment firms deliver strategic talent solutions, AI-driven hiring tools, and global reach—backed by decades of experience.

This comprehensive list explores the Top 10 U.S.-based recruitment companies, their specialties, strengths, contact information, and how they continue to lead the industry.

1. Robert Half

Website: https://www.roberthalf.com

Contact:

1. Phone: 1-844-256-6540
2. Email: Use contact form at https://www.roberthalf.com/contact-us
3. HQ: 2613 Camino Ramon, San Ramon, CA 94583

Overview:

Founded in 1948, Robert Half is a global leader in professional staffing, specializing in accounting, finance, IT, legal, marketing, and administrative roles. Known for speed and accuracy, they serve businesses of all sizes.

2. Kelly Services

Website: https://www.kellyservices.com

Contact:

1. Phone: 1-800-Kelly-01 (1-800-535-5901)
2. Email: corporate.communications@kellyservices.com
3. HQ: 999 West Big Beaver Road, Troy, MI 48084

Overview:

Kelly Services offers both temporary and direct hire staffing solutions in STEM, education, healthcare, finance, and more. Their Motion Recruitment acquisition further strengthened their tech hiring capabilities.

3. ManpowerGroup

Website: https://www.manpowergroup.com

Contact:

1. Phone: 1-800-561-6934
2. Email: Use the form at https://www.manpowergroup.com/contact-us
3. HQ: 100 Manpower Place, Milwaukee, WI 53212

Overview:

With more than 70 years in business and over $19B in global revenue, ManpowerGroup supports workforce needs through four key brands: Manpower, Experis, Talent Solutions, and Right Management.

4. Korn Ferry (includes Lucas Group)

Website: https://www.kornferry.com

Contact:

1. Phone: +1-800-633-4410
2. Email: info@kornferry.com
3. HQ: 1900 Avenue of the Stars, Suite 1500, Los Angeles, CA 90067

Overview:

Korn Ferry is the gold standard in executive search, professional recruitment, and organizational consulting. Lucas Group, acquired in 2021, enhances Korn Ferry’s presence in mid-tier professional staffing.

5. Randstad USA

Website: https://www.randstadusa.com

Contact:

1. Phone: 1-877-601-7453
2. Email: customer.service@randstadusa.com
3. HQ: 3625 Cumberland Blvd SE, Atlanta, GA 30339

Overview:

Randstad is one of the largest staffing firms globally, known for technology-led solutions across IT, engineering, healthcare, and finance. Their Randstad RiseSmart and RPO offerings power modern workforce solutions.

6. Adecco Staffing USA

Website: https://www.adeccousa.com

Contact:

1. Phone: 1-866-528-0707
2. Email: Use the web form at https://www.adeccousa.com/contact-us/
3. HQ: 10151 Deerwood Park Blvd, Jacksonville, FL 32256

Overview:

Adecco is part of the Switzerland-based Adecco Group. In the U.S., they offer temp staffing, payrolling, MSP, and permanent recruitment across multiple industries including clerical, industrial, and technology.

7. MRINetwork

Website: https://www.mrinetwork.com

Contact:

1. Phone: +1-800-875-4000
2. Email: info@mrinetwork.com
3. HQ: 300 Red Bank Rd, Suite 10, Goose Creek, SC 29445

Overview:

MRINetwork is a franchise-based recruitment powerhouse, known for high-quality executive and professional placements across industries including engineering, healthcare, and manufacturing.

8. Aerotek (part of Allegis Group)

Website: https://www.aerotek.com

Contact:

1. Phone: 1-888-AEROTEK (1-888-237-6835)
2. Email: Use the contact page: https://www.aerotek.com/en/contact
3. HQ: 7301 Parkway Dr, Hanover, MD 21076

Overview:

Aerotek specializes in skilled trades, light industrial, and manufacturing staffing. A division of Allegis Group, they maintain an extensive network of talent across the U.S.

9. Insight Global

Website: https://www.insightglobal.com

Contact:

1. Phone: 1-855-485-8853
2. Email: info@insightglobal.com
3. HQ: 1224 Hammond Dr NE, Suite 1500, Atlanta, GA 30346

Overview:

One of the fastest-growing U.S. staffing firms, Insight Global focuses on IT, finance, healthcare, and government staffing. Their team-based culture and rapid delivery cycles make them a favorite for tech hiring.

10. Barbachano International

Website: https://www.bipsearch.com

Contact:

1. Phone: +1-619-427-2310
2. Email: info@bipsearch.com
3. HQ: 333 H Street, Suite 5000, Chula Vista, CA 91910

Overview:

Barbachano specializes in bilingual executive search and cross-border placements across the U.S. and Latin America. Now part of Korn Ferry, they offer culturally aligned leadership hiring solutions.

Summary Table: Top U.S. Recruitment Companies with Contact Info

Key Trends Driving the Market in 2025

Innovation and AI adoption

Companies increasingly outsource recruitment operations. Kelly Services and ManpowerGroup are expanding beyond contingent staffing into full lifecycle workforce solutions and consulting.

Focus on executive and diversity hiring

Executive search firms (Korn Ferry, Barbachano, MRINetwork) emphasize leadership with global and diverse talent strategies, meeting DE&I expectations.

Industry specialization

Firms like Aerotek and Insight Global thrive in targeted verticals like industrial trades or tech staffing, delivering faster, higher-quality results through niche expertise.

Why These Firms Lead—and Why You Should Care

Reputation & Longevity

Each has decades of experience, strong infrastructure, and built trust with Fortune 500 clients.

Scale & Reach

With thousands of U.S. offices and global networks, they deliver volume and reliability.

Highly Specialized Talent Pools

From C-suite to skilled trades and tech, they curate and maintain proprietary candidate ecosystems.

Consultative & Data‑Driven Approach

Their client services go beyond candidate delivery. They offer market insights, benchmark data, and workforce strategy.

Resilient in Downturns

Despite macroeconomic headwinds, firms like Randstad and ManpowerGroup remain stable due to diversified revenue models and managed services offerings

Whether you're a talent acquisition leader evaluating vendors or a hiring manager sourcing strategic partners, this curated Top 10 list reflects the leading edge of U.S. recruitment.