Here is how to choose a staffing agency in short: start with your needs and shortlist firms that specialise in your industry and roles. Then ask direct questions about how they recruit, screen, price and support their placements. The right partner can explain its process clearly, show relevant experience and put its commitments in writing.
This guide walks through how to choose a staffing agency step by step and gives you 12 questions to ask before you sign, along with the answers to listen for and the red flags that should make you pause.
Step 1: Define what you need before you call
Knowing how to choose a staffing agency starts with your own brief, because agencies can only match what you can describe. Before contacting anyone, write down:
- The roles, skills and certifications required.
- Whether you need temporary, contract, contract-to-hire or direct-hire staff.
- How many people, for how long and by when.
- Pay ranges, schedules, location and any remote or on-site rules.
- Screening you require, such as background checks, drug tests or skills tests.
If you are still deciding whether outside help makes sense at all, our overview of the benefits of using a staffing agency covers when agencies add the most value.
Step 2: Shortlist agencies that specialise in your field
When you work out how to choose a staffing agency, specialism matters. General agencies can fill many roles, but specialists usually know the candidate market better. A firm focused on technology, for example, understands the difference between a DevOps and a data engineering profile, which is why many employers use a dedicated IT staffing agency for technical roles.
The American Staffing Association suggests narrowing your list to firms that specialise in your industry, type of operation or the types of employees you need. Then check several companies and ask for references. Membership in an industry association and a published code of ethics are also useful signals of professional standards.
12 questions to ask a staffing agency
These questions are the core of how to choose a staffing agency. Use them in your first meetings, because good partners will welcome them.
Experience and fit
- 1. Which industries and roles do you fill most often? Look for a clear focus that matches your needs.
- 2. Can you share references from clients with similar roles? Speak to at least two and ask about speed, quality and communication.
- 3. How will you learn about our culture and the job? A good recruiter asks to meet hiring managers or visit the site, not just read a job description.
Recruiting and screening
- 4. Where do your candidates come from? Also ask how much is active sourcing and referrals versus job-board applications.
- 5. What screening do you do before we see a candidate? Skills tests, interviews, reference checks, background checks and licence verification should be spelled out.
- 6. How do you verify work eligibility? For workers on the agency’s payroll, the agency completes Form I-9. Ask whether it also uses E-Verify.
- 7. How quickly can you present qualified candidates? Then ask for realistic timelines for your specific roles, not a general promise.
Cost, contracts and risk
- 8. How are your fees structured? Ask for the bill rate or markup on temporary staff, the placement fee for direct hires and any conversion fee for contract-to-hire.
- 9. What happens if a placement does not work out? Instead of a verbal promise, look for a replacement or guarantee period in writing.
- 10. Who is the employer, and who carries insurance? Confirm who runs payroll, taxes and workers’ compensation, and who provides liability coverage.
- 11. How do we share responsibility for safety and training? OSHA’s guidance on temporary workers explains that the staffing agency and the host employer share responsibility for a temporary worker’s safety.
Service and reporting
- 12. Who is our main contact, and how will you report progress? Ask about response times, regular updates and how the agency handles problems.
What good answers and red flags look like
| Topic | Good sign | Red flag |
|---|---|---|
| Specialisation | Clear focus and relevant client examples | Claims to fill any role, anywhere |
| Screening | Written, role-specific screening steps | Vague answers about checks |
| Fees | Transparent rates and conversion terms | Hidden fees or pressure to sign fast |
| Replacement | Defined guarantee period in the contract | No commitment if a hire fails |
| Compliance | Clear split of payroll, insurance and safety duties | Unsure who is the employer |
| Communication | Named contact and agreed updates | Hard to reach during the sales stage |
Step 3: Compare proposals side by side
The next step in how to choose a staffing agency is a fair comparison. Ask two or three shortlisted agencies for a written proposal based on the same brief. Compare more than price: a lower bill rate means little if candidates arrive late or leave early. Weigh time to present candidates, screening depth, replacement terms and the quality of the recruiter’s questions about your role.
If the agency will fill a large project or a whole function, the ASA suggests the firm should review your needs thoroughly and prepare a detailed presentation before you commit.
Step 4: Start with a pilot and review results
The last step in how to choose a staffing agency is a trial run. Before signing a long exclusive agreement, start with a few roles. During the pilot, track how many candidates the agency presented, how many you interviewed and hired, how long each step took and how placements performed. Agree on a review after the first assignments and decide whether to expand the relationship.
How to choose a recruitment agency for specialist roles
The same process applies when you choose a recruitment agency for permanent or specialist hiring, with a few extra checks:
- Healthcare: ask how licences and credentials are verified and kept current, as with per diem nursing and other clinical staffing.
- IT and cybersecurity: ask who conducts technical screening and whether candidates complete practical assessments.
- Executive and leadership roles: ask about search methodology, confidentiality and how candidate shortlists are built.
Questions a good agency will ask you
Learning how to choose a staffing agency well works both ways. A strong staffing partner will also question you, because the quality of its candidates depends on how well it understands the job. Expect a good recruiter to ask:
- What does success look like in this role after 30, 60 and 90 days?
- Which skills are must-haves, and which can be learned on the job?
- Who will the person report to, and how does that manager like to work?
- Why is the role open, and what made past hires succeed or struggle?
- What is the full interview process, and how fast can you give feedback?
If an agency sends candidates without asking questions like these, it is probably matching keywords rather than understanding your needs. That usually shows up later as more interviews, more rejections and a slower hire.
How to choose a staffing agency FAQ
What makes a good staffing agency?
A good staffing agency specialises in your type of roles, screens candidates thoroughly, explains its fees openly, communicates quickly and stands behind its placements with written replacement terms. Also, strong client references are one of the best signs.
What questions should I ask a staffing agency?
Ask about the industries they serve, where candidates come from, how they screen, how fees and conversion work, what happens if a placement fails, who is the employer for payroll and insurance, and who your day-to-day contact will be.
How do I compare staffing agency fees?
Ask each agency to quote the same roles and break down the bill rate or markup, placement fee, conversion fee and any minimum hours. Then compare total cost alongside speed, quality and replacement terms.
Should I use more than one staffing agency?
Using two or three agencies can widen your reach for hard-to-fill roles, but it can also create duplicate submissions. Many employers start with one preferred partner per role type and add a second only when needed.
Talk to a staffing partner
Looking for a staffing agency that can answer all 12 questions clearly? Explore Bridgecore Partner’s contingent workforce services for temporary, contract and contract-to-hire talent, then contact Bridgecore Partner to talk through your roles.