Aston Carter

Best U.S. staffing agencies to start with

There isn’t one “best” agency for every job. The best choice depends on whether you need office/professional, IT, industrial, education, healthcare, or executive hiring. My short list below balances brand recognition, national reach, specialty depth, and actual market usage.

My top 10 “default” picks

If you just want the brands most people should check first in the U.S., I’d start here:

1. Robert Half — best default for professional/office roles.
2. Allegis Group brands: TEKsystems, Aerotek, Aston Carter — best big-network option by specialty.
3. Randstad USA — broad national staffing.
4. ManpowerGroup / Experis — general temp + IT/professional staffing.
5. Kelly / Kelly Education — education, science, engineering, professional, and temp staffing.
6. Adecco — industrial, admin, warehouse, and volume staffing.
7. Insight Global — IT, engineering, healthcare, finance, project staffing.
8. Express Employment Professionals — local branch-based staffing.
9. Kforce — IT and finance/accounting.
10. Korn Ferry — executive search and senior professional recruiting.

Quick recommendation by situation

• You’re a job seeker in accounting/finance/admin: Start with Robert Half, Aston Carter, Randstad, and Kforce.
• You’re in IT or software/data/cloud: Start with TEKsystems, Insight Global, Kforce, Experis, and Randstad Digital.
• You want warehouse, manufacturing, logistics, or light industrial work: Try Aerotek, Adecco, Randstad, Manpower, Express, and PeopleReady.
• You’re a substitute teacher or school worker: Check Kelly Education first where available.
• You’re a nurse, allied health worker, or physician: Use healthcare specialists like Aya, AMN, CHG, and Jackson Healthcare.
• You’re hiring executives: Use Korn Ferry, Spencer Stuart, Heidrick & Struggles, Russell Reynolds, or Egon Zehnder; Forbes’ 2025 executive recruiting top five included Korn Ferry, Robert Half, Spencer Stuart, Heidrick & Struggles, and Russell Reynolds. (forbes.com)

Practical tip: for most job seekers, register with 2–4 agencies in your specialty, not 20. Agency quality varies heavily by local office and individual recruiter, so the “best” agency is often the one with the strongest local desk for your exact role.

There’s no single “best” staffing agency in the U.S. — the right one depends on your industry, role level, and whether you’re looking for temp, contract-to-hire, or direct placement. But these are the most widely used, reputable staffing brands by category:

🏭 General & Light Industrial

Best for warehouse, manufacturing, logistics, and entry-level labor.

• Manpower
• Adecco
• Kelly Services
• Randstad
• TrueBlue / PeopleReady

These are the big national players that fill high-volume temp shifts quickly.

💼 Office, Admin & Finance

Best for administrative assistants, accounting clerks, office managers, and junior finance.

• Robert Half (and its finance arm Accountemps)
• Aston Carter
• Beacon Hill Staffing Group
• Randstad USA
• LaSalle Network (strong in Chicago, but places nationally)

Robert Half is probably the most recognized name in finance/accounting temp and permanent placement.

💻 Technology & IT

Best for software engineers, IT support, DevOps, cybersecurity, and cloud roles.

• TEKsystems
• Insight Global
• Robert Half Technology
• Kforce
• Motion Recruitment (great for startup/contract work)

If you’re a developer or IT pro, TEKsystems and Insight Global place a massive number of contract workers every year.

🏥 Healthcare & Nursing

Best for RNs, LPNs, allied health, and travel contracts.

• AMN Healthcare
• Aya Healthcare
• Cross Country Healthcare
• Maxim Healthcare Services

Aya is one of the most popular for travel nurses because of its mobile app and transparent pay packages.

⚙️ Engineering & Technical

Best for mechanical, electrical, civil, and design engineering roles.

• Actalent (Aerotek’s engineering-focused spinoff)
• Aerotek
• Belcan
• Kelly Engineering
• Insight Global

🎨 Creative, Marketing & Digital

Best for designers, copywriters, marketers, and brand/creative talent.

• Creative Circle
• Aquent
• 24 Seven
• The Mom Project (also great for flexible/remote roles)
• Mediabistro (for media and marketing)

🧑‍💼 Executive Search (Senior Leadership)

For VP/C-suite direct placement, these are the top retained search firms:

• Korn Ferry
• Spencer Stuart
• Heidrick & Struggles
• Russell Reynolds Associates

These aren’t for temp jobs — they’re used by companies hiring executives.

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Quick tip

If you are a job seeker:

• Use LinkedIn, Indeed, and ZipRecruiter to see which agencies are hiring in your field.
• Contact 2–3 niche agencies rather than all of them — staffing recruiters respond better when you fit their specialty.
• Many agencies also have “direct hire” divisions, so even if you don’t want temp work, they can place you permanently.

If you are a company hiring, the “best” agency usually comes down to:

• Speed → Manpower or TrueBlue
• IT contract staffing → TEKsystems or Insight Global
• Finance/accounting → Robert Half
• Travel nurses → Aya
• Engineering → Actalent

Bottom line: Robert Half, Manpower, Randstad, Aerotek, and TEKsystems are probably the five staffing brands people in the U.S. use most overall, but niche matters more than brand.

The top staffing agencies in the US, based on scale (revenue/market share from Staffing Industry Analysts reports) and popularity/recommendations (Forbes/Statista client and peer surveys), include well-established national players like Allegis Group (and its brands), Aya Healthcare, Insight Global, Randstad, Express Employment Professionals, Kelly Services, ManpowerGroup, Robert Half, and Adecco.

These are among the largest and most frequently used, with widespread branch networks across the country for temporary, contract, temp-to-hire, and permanent placements. They handle everything from industrial/skilled trades and office/admin roles to IT, healthcare, finance/accounting, and professional positions. People commonly use them via local offices, websites, or apps for job searches or employer hiring needs.

Largest by US Staffing Revenue (SIA Data)

These dominate in scale and are widely utilized:

• Allegis Group (top-ranked overall, ~$9B+ in recent estimates): Parent of Aerotek (industrial/skilled trades), TEKsystems (IT), and Aston Carter (finance/HR). Strong across multiple sectors.
• Aya Healthcare (often #2, healthcare-focused, multi-billion revenue): Leader in travel nursing, allied health, and locum tenens.
• Insight Global: Major player in IT, engineering, and other professional staffing.
• Randstad: Broad staffing across industries, with a large US presence.
• Express Employment Professionals, Kelly Services, ManpowerGroup, CHG Healthcare, Robert Half, and Jackson Healthcare round out the top tier.

Robert Half consistently ranks high in finance/accounting and professional roles, while healthcare specialists like Aya, CHG, and Jackson lead in medical staffing.

Highly Recommended/"Best" Based on Client & Peer Feedback (Forbes/Statista)

These often top lists for service quality, with Robert Half, Kelly, Manpower, Randstad, and Adecco frequently cited:

• Robert Half: Frequently #1 for professional recruiting (finance, accounting, admin, legal); also strong in temp staffing.
• Kelly Services: High rankings in both professional and temporary staffing; specialized divisions (e.g., science, education, tech) with industry-experienced recruiters.
• ManpowerGroup, Randstad, and Adecco: Regular top performers in temporary staffing lists.
• Others like Aerotek (industrial), PeopleReady (skilled trades), and Korn Ferry (executive search) also appear prominently.

Tips for Choosing and Using Them

• By specialty: Robert Half or similar for finance/accounting; TEKsystems/Insight Global for IT; Aerotek/Express/PeopleReady for industrial or trades; Aya/CHG/Jackson for healthcare/travel nursing; generalists like Kelly, Manpower, Randstad, or Adecco for broad needs.
• These agencies are free for job seekers (employers pay the fees). They often have strong local presence—search for branches near you or use their websites/apps to upload resumes and browse openings.
• Popularity comes from volume (they place millions of workers annually), national coverage, and repeat use by companies and candidates. Check recent client/talent reviews on platforms like ClearlyRated (Best of Staffing awards) or Glassdoor for local experiences, as service can vary by branch or recruiter.
• For the most current fit, consider your industry, role type (temp vs. permanent), and location, as smaller or niche agencies may excel in specific areas.

Rankings can shift slightly year to year due to market conditions, but these brands consistently appear at the top for both size and usage. If you provide more details (e.g., industry, location, or temp vs. permanent), I can refine recommendations further.