What Is a Recruitment Agency? How to Work With One Effectively

Recruitment agencies are paid by the employer, not the candidate. In a contingency model, the agency earns a fee only when a candidate they placed is hired, typically 15 to 25 percent of the candidate's first-year salary. In a retained model, the agency receives a portion of the fee upfront to conduct a dedicated search, with the remainder paid on placement. This structure means the agency's financial interest is in getting someone placed, not in finding the perfect fit at any cost.

Most recruitment agencies focus on specific functions or industries rather than operating as general-purpose recruiters. A finance-specialist agency will have deeper relationships with hiring managers in financial services and will know the market for specific roles far better than a generalist. Working with a specialist agency is almost always more effective than working with a generalist.

Recruitment agencies are distinct from internal talent acquisition teams, which are employees of the hiring company. They are also distinct from executive search firms, which conduct confidential retained searches for senior leadership roles. See headhunter for the senior-focused variant and third-party recruiter for the broader category.

How interviewers usually evaluate this

Interviewers rarely grade the term itself. They grade how well you apply it under pressure. That means understanding the concept is only the starting point. The stronger signal is whether you can use it clearly, consistently, and in the right part of the interview.

The points below give you the most practical starting place for applying this concept well in a real interview. Use them as the core checklist before you worry about the smaller details.

• Contingency agencies. Work multiple searches simultaneously and are paid only on placement. They send candidates quickly and broadly. Useful for standard professional roles in the mid-market. The speed-focused incentive sometimes leads to candidate submissions without full alignment on the role requirements.
• Retained search firms. Conduct exclusive, dedicated searches for one client at a time. Typically used for senior and executive roles. More thorough candidate vetting, more careful fit assessment, and a longer timeline. The quality of candidate experience tends to be higher.
• Staffing agencies. Focus on contract, temporary, and contract-to-hire placements rather than permanent roles. Used heavily in sectors like technology, finance, healthcare, and administration. Some placements convert to permanent after a trial period.
• Specialist agencies. Focus on a specific function (technology, legal, finance, creative) or industry (healthcare, energy, media). Have deeper relationships with employers in their niche and more realistic insight into market rates and role requirements.
• Generalist agencies. Cover roles across functions and industries. More appropriate for entry-level and administrative roles than for specialized professional searches.

For most experienced candidates, working with one or two specialist agencies with deep knowledge of their function is significantly more productive than registering with many generalist agencies.

The points below give you the most practical starting place for applying this concept well in a real interview. Use them as the core checklist before you worry about the smaller details.

1. Be specific about what you want. Vague guidance ("I'm open to most things in finance") produces poor matches. Specific guidance ("I'm looking for a senior FP&A role at a company between $500M and $2B revenue, ideally in consumer goods, in London") produces better matches and saves everyone time.
2. Control where your resume goes. Always ask before a recruiter submits your CV to a specific employer. Some companies have exclusivity windows: if an agency submits your resume without your knowledge and you apply directly later, the company may have to credit the agency a fee, which complicates the process for everyone. Know every employer who has received your application.
3. Be honest about your situation and availability. Recruiter relationships built on accurate information produce better placements. If you are actively looking, say so. If you are passively exploring, say that too. A recruiter who knows your actual timeline can match you to roles appropriately.
4. Follow up to stay in their consideration set. Agencies receive many registrations and work with the candidates most ready to move. A brief monthly check-in signal that you are still available and interested keeps you on their radar.

Evaluate the recruiter's knowledge of the market. A good recruiter can tell you the realistic salary range for your role, which companies are actively hiring, and what the typical hiring timeline looks like. A generalist who cannot speak to these specifics is less likely to place you well.