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How Do Staffing Agencies Work?

Staffing agencies provide an outlet for businesses looking to hire temporary employees quickly.

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Written by: Patrick Proctor, Senior WriterUpdated Jul 24, 2025
Shari Weiss,Senior Editor
Business.com earns commissions from some listed providers. Editorial Guidelines.
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As an employer, finding the right candidates to hire for your business is a lengthy and demanding process. The employee search can be resource-intensive, requiring manpower and funding to cover everything from recruiting efforts to vetting and onboarding.

Because of this, many businesses look to staffing agencies to do the legwork. These agencies find candidates for companies, matching them with the roles and environments they’re best suited for — simplifying the process for both employers and job seekers. In this guide, learn exactly what staffing agencies do, how they work and how to find one.

What do staffing agencies do?

Staffing agencies, also known as recruitment agencies or temp agencies, match companies that have short-term staffing needs with candidates who are looking to work for short periods or want to try a new job. They usually specialize in a particular industry or type of work, but they tend to work similarly regardless of the type of position or industry.

Most staffing agencies provide employers with prequalified candidates who will work on a temporary basis for any open positions. This allows the temporary employees, or “temps,” to gain work experience and test a job before committing to it. In some cases, however, staffing agencies connect businesses with permanent employees.

The staffing industry represents a significant sector of the U.S. economy. According to the American Staffing Association, “Staffing provided job and career opportunities for about 13 million employees in 2023,” with almost 2.5 million temporary and contract employees working for U.S. companies via a staffing arrangement during an average week. The industry is comprised of approximately 27,000 staffing and recruiting businesses in the U.S., which operate more than 50,000 offices.

Did You Know?Did you know
“Temp” positions can range from one day to one year, which is the standard limitation for what the Department of Labor defines as a temporary employee.

How do staffing agencies work?

Staffing agencies can be a helpful resource for both businesses and job seekers. Here’s how they work:

Step 1: An employer contacts a staffing agency.

An employer contacts a staffing agency for help filling a role. The employer shares the job description, what they’re willing to pay for the role, how long the assignment is expected to last, and any concerns or relevant details, including physical, safety and/or travel requirements.

Step 2: The staffing agency drafts a service agreement.

Once the employer’s needs and the details of the role are established, the staffing agency creates and shares a service agreement (or contract) with the employer that outlines the nature of the relationship. The agreement typically covers how billing and invoicing work, the service charge and what to do if the employer wants to hire the worker permanently.

Step 3: The staffing agency assesses its portfolio and recruits candidates.

Sometimes the staffing agency has personnel ready to start working immediately. However, the agency may need to tap into its network of temporary workers or recruit new candidates to locate the right person for the job.

Since many staffing agencies focus on specific areas of the labor market, they often run ongoing recruitment ads with the knowledge that candidates will sign up to work and employers will seek their services. When employers call for staffing, agencies hope to have candidates prequalified and ready for interviews or work immediately.

Step 4: Candidates are screened.

Once job seekers have applied to a staffing agency, the agency will interview them, even if there is no immediate work available. This process often involves a background check, drug screen, credit check, employment verification and reference checks. Some agencies help candidates develop professional resumes, which are shared with employers.

Step 5: The employer interviews candidates.

If candidates pass the agency’s vetting process, employers can then interview them for the open role. This process typically includes sharing information about the company and job, explaining why the position is needed and evaluating how the candidate’s background matches the employer’s needs.

Step 6: The chosen candidate begins the job.

The employer decides which candidate to accept for the role. Although the staffing agency will be the temporary employee’s official employer, the business that hires them for the temp position manages them and shows them what to do to fulfill their duties.

What are the types of staffing agencies?

There are many types of staffing agencies that fill needs for employers across many industries, including temporary staffing agencies, permanent placement agencies, executive search firms and more. Here are some different kinds of staffing agencies:

  • Temporary staffing agencies focus on short-term placements, typically lasting from a few days to several months. These agencies handle the hiring, payroll, benefits and legal responsibilities for temporary workers.
  • Permanent placement agencies specialize in finding full-time, permanent employees for companies. They typically charge a fee based on a percentage of the new hire’s annual salary.
  • Contract-to-hire agencies provide workers on a temporary basis with the possibility of permanent employment if both parties are satisfied with the arrangement.
  • Executive search firms focus on high-level positions such as C-suite executives, directors and other senior management roles. These searches typically involve more extensive vetting and higher fees.
  • Industry-specific agencies specialize in particular sectors such as healthcare, information technology, engineering, finance or manufacturing, providing expertise in specific skill sets and industry requirements.

How do you find a staffing agency?

Finding the right staffing agency for your business requires a strategic approach to ensure you partner with a firm that can deliver the services you need. We recommend following these steps:

1. Define your staffing needs.

Before beginning your search, clearly establish your requirements:

  • Type of roles you need to fill (temporary, permanent, contract-to-hire)
  • Industry specialization required
  • Number of positions to fill
  • Timeline and urgency
  • Budget parameters
  • Geographic requirements

2. Research potential agencies.

Conduct a comprehensive search for a staffing agency using multiple resources. Consider:

  • Industry associations: The American Staffing Association website offers lists of credible agencies that maintain ethical standards and practices.
  • Online directories: Seek professional platforms and industry-specific databases.
  • Local and national options: Search for both regional specialists and national firms with local presence.

3. Evaluate agency credentials and specialization.

Look for staffing agencies that demonstrate:

  • Relevant industry expertise in your sector.
  • Appropriate licensing and certifications.
  • A strong track record and established reputation.
  • Specialization in your required skill sets or job types.

4. Gather agency recommendations and references.

Reach out for community references for an agency, just as you would seek references when recruiting employees.

  • Network within your industry: Contact businesses of similar size and scope for their experiences.
  • Professional associations: Leverage industry contacts for referrals in your sector.
  • Client testimonials: Review case studies and success stories from potential agencies.

5. Review the agency’s online presence and reputation.

As you would with any supplier or vendor your business might partner with, investigate each agency’s brand reputation.

  • Review platforms: Check Google, Yelp and industry-specific review sites.
  • Better Business Bureau: Verify ratings and complaint history.
  • Social media presence: Assess their professional engagement and thought leadership.
  • Website quality: Evaluate their online presence for professionalism and transparency.
TipBottom line
A well-maintained website, a blog featuring insightful posts or an active social media account can demonstrate a staffing agency’s expertise and engagement in the industry.

6. Conduct due diligence interviews.

When speaking with potential agencies, ask about:

  • Response time for urgent staffing needs
  • Candidate vetting and screening processes
  • Replacement guarantees and policies
  • Communication protocols and reporting
  • Technology platforms and capabilities
  • Pricing structure and fee transparency
  • Compliance policies
  • Track record with similar businesses

When evaluating each staffing agency, look for red flags, such as a lack of proper licensing, unwillingness to provide references, unclear fee structures, poor communication or promises that seem too good to be true. Verify their success rates for placements in your industry before deciding which agency to move forward with.

How much do staffing agencies cost?

Understanding staffing agency costs is essential for budgeting and making informed hiring decisions. Agencies use various pricing models based on the type of placement and services provided.

Temporary staffing costs

For temporary placements, agencies typically charge an hourly markup over the employee’s base pay rate. This markup varies significantly, based on factors such as industry, role complexity, assignment duration and local market conditions, but can range from 25 to 75 percent of the temporary employee’s wages. For example, suppose your temporary employee’s rate is $20 per hour and the markup is 25 percent. In that case, you’d pay $25 per hour to the staffing agency ($20 for the employee and $5 for the agency).

The markup covers several essential costs, including:

  • Statutory expenses: Federal and state payroll taxes required by law
  • Insurance costs: Workers’ compensation and general liability coverage
  • Administrative overhead: Payroll processing, benefits administration and compliance management
  • Recruiting and screening costs: Background checks, skills assessments and candidate sourcing
  • Agency operational expenses: Office overhead, technology systems and staff salaries

Permanent placement costs

For permanent hires, agencies typically charge a percentage of the new employee’s first-year salary, ranging from 25 to 40 percent. These fees vary based on factors like:

  • Role level and complexity: Higher-level positions typically command higher fees.
  • Industry specialization: Specialized sectors may have different fee structures.
  • Market demand: In-demand skills and competitive markets may affect pricing.
  • Agency relationship: Established client relationships may influence fee negotiations.
FYIDid you know
A relationship with a staffing agency may come in handy at critical times for your business. If you’re an established client, the staffing agency might prioritize your company over others during busy seasons, which increases the likelihood of getting the help you need when you need it.

Contract-to-hire costs

With contractor-to-hire arrangements, which allow you to eventually hire the temporary worker as a full-time employee, you pay a percentage of the total compensation over a given waiting period, generally six to 12 months. So, if you bring on a temp for six months but decide after one month to hire them full-time, you would still pay the staffing agency for the other five months. 

Of course, there is no guarantee the candidate will work out for the long term; if the candidate turns out to be a bad hire within the first few months, the staffing agency may offer partial credit or a refund.

Return on investment considerations

While staffing agencies involve additional costs compared to recruiting new hires yourself, they can provide significant ROI through:

  • Reduced time-to-hire: Faster placement reduces productivity gaps
  • Lower recruiting costs: Eliminates internal recruiting expenses
  • Risk mitigation: Agencies handle employment law compliance and screening
  • Flexibility: Ability to scale workforce up or down quickly
  • Access to specialized talent: Reach candidates not available through traditional channels

Pros and cons of using staffing agencies

Partnering with a staffing agency can benefit both the employer and the worker. Candidates are mainly looking for readily available work, and having fully vetted hires at the ready is valuable to employers. However, working with a staffing agency is not without downsides. Weigh the pros and cons in the chart below before deciding whether this is the right path to staff your business.

Pros

Cons

Staffing agencies can be an excellent solution for immediate temporary staffing assistance.

Hiring a staffing agency temp as a full-time employee can cost additional money if done within a contract or service agreement.

Staffing agencies can reduce the time it takes to fill a position, saving money and preventing lost revenue.

Staffing agencies won’t necessarily specialize in your type of company or ensure a good cultural fit; they primarily focus on candidates’ skill sets and work experience.

Utilizing temporary staffing can help you vet and assess candidates before bringing them on permanently.

Not all staffing agencies operate nationwide. If you have facilities around the country, you may not be able to use your first choice for temporary staffing help.

Staffing agencies provide access to specialized talent pools and lessen the administrative burden for payroll and compliance.

Staffing agencies have higher ongoing costs compared to direct hiring for long-term positions and give you less control over the hiring process.

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Written by: Patrick Proctor, Senior Writer
Patrick Proctor is a human resources and people operations expert with SHRM-SCP certification and an MBA in business management. He has spent nearly 20 years leading HR for organizations of varying sizes, some international. He advises on regulatory compliance, workforce management, aligning strategic business objectives with human capital initiatives and more. At business.com, Proctor covers a range of HR topics, including compensation packages, stay interviews, job rotation, employment verification and more. Proctor is passionate about helping businesses establish employee-centric workplace cultures that increase team member satisfaction while also maintaining cost efficiency and improving ROI. He also enjoys integrating distributed teams and developing the next generation of leadership. He has written about workplace issues for publications like Entrepreneur and sits on the boards of advisors for people management company ChangeEngine and UC Santa Barbara's Professional and Continuing Education program.