Contingent vs Retained Recruitment: Which Should You Use?

Choosing between contingent and retained recruitment is not about which model is “better”. It is about matching the way you pay for a search to the risk, urgency, and difficulty of the role you are trying to fill. Get this wrong and you either overpay for a straightforward hire or under-invest in a search that needed proper focus.

This article sets out how each model actually works, where each one earns its keep, and how to decide without guessing.

How contingent recruitment works

Contingent recruitment is the model most people default to. You brief one or more agencies, they work the role alongside their other live searches, and you pay a fee only if you hire someone they introduce. There is no retainer, no upfront cost, and no exclusivity unless you agree it.

This makes contingent recruitment low risk on paper. But it comes with a trade-off: because the agency is not guaranteed payment, and because multiple agencies may be working the same brief, the incentive is to move fast and surface candidates quickly rather than run a deep, considered search. For well-understood roles with a reasonably deep talent pool, that is fine. For a niche or senior hire, it often means you see the same active candidates as everyone else, rather than the harder-to-reach people who are not actively looking.

Our own contingent recruitment work sits here: fast, focused searches for roles where speed and a solid shortlist matter more than an exhaustive market map.

How retained search works

Retained search flips the incentive. You commit to working with one agency, usually paying in stages (on kick-off, at shortlist, and on placement), and in return you get dedicated time, proper research, and direct outreach to people who are not actively job hunting.

This matters most for roles that are senior, highly specific, or business-critical, where getting it wrong is expensive and the right person may not be on the open market at all. A retained search also gives you a partner who will push back on an unrealistic brief or an unrealistic salary expectation, rather than simply filling the role as submitted.

The cost difference between the two models is often smaller than people assume. What you are really paying for with retained search is focus, sequencing, and a lower chance of an expensive mis-hire, not a higher headline fee. For current market context on what roles and packages actually look like, our salary report and our salary benchmarks are useful reference points.

When each model actually fits

• Contingent fits when the role is well-defined, the market for it is reasonably liquid, and you can tolerate a competitive process with several agencies involved. Think mid-level engineers in a common stack, or roles you have hired for before.
• Retained fits when the role is senior, novel, or hard to define, when a bad hire would be costly, or when you need one agency fully committed rather than several agencies half-committed. This is common for first technical leadership hires, and for specialist AI and data roles where the candidate pool is genuinely small.
• Neither may fit if you are hiring at volume over a sustained period, in which case an embedded recruitment / RPO model, where a recruiter works inside your team, can be more cost-effective than repeated retained or contingent fees.

Making the call without guessing

A reasonable rule of thumb: if you would be comfortable with three agencies all trying to fill the role simultaneously, contingent is fine. If you would rather have one agency go deep, retained is the better fit. Seniority, scarcity, and the cost of getting it wrong should drive the decision, not habit or what you used last time.

How we help

At OpenSource we run both models, and we will tell you honestly which one suits the role in front of you rather than pushing whichever is easiest for us. Every candidate we put forward is technically screened by the founders first, whether the search is contingent or retained. Have a look at our full services or our software engineering recruitment work, browse current jobs, or get in touch to talk through the right approach for your next hire.