When Using a Recruitment Agency Actually Makes Sense
By Daniel Bryant · 15 April 2026
The Short Version
A contingency recruitment agency is the right choice when your hiring is low volume, unpredictable, spread across unrelated functions, or urgent enough that a standing start is worth paying a premium for. It is the wrong choice when you are hiring repeatedly into the same market at volume, because you pay the full learning curve on every search and none of the accumulated knowledge stays with you. The dividing line for most SaaS companies sits at around five or six commercial hires a year.
Why This Post Exists
I run a fractional talent acquisition service. I am paid monthly. Every reader who decides an agency suits them better is revenue I do not get.
I am writing it anyway, because the alternative is worse. If I convince a company hiring three roles a year to buy monthly capacity they cannot fill, they will work out the mistake by month four, cancel, and tell people. A model that only wins by being oversold is not a model worth having.
So: here is when you should use an agency.
1. You Are Hiring Fewer Than Five or Six Roles a Year
This is the big one and it is pure arithmetic.
At 18 percent of an average $115,000 base, a contingency hire costs about $20,700. Three hires is $62,100 for the year. A fractional arrangement at $8,400 a month is $100,800 whether you use it or not.
Below roughly five hires, the agency is cheaper. Below three, it is dramatically cheaper. No amount of talk about continuity, market knowledge or compounding pipelines outweighs a $40,000 gap on a small hiring plan.
Pay per hire. Keep the flexibility. Spend the difference on something that grows the business.
2. Your Hiring Is Genuinely Unpredictable
Some companies hire in bursts driven by events outside their control. A large contract lands and you need four people in six weeks. It does not land and you need nobody for two quarters.
Fixed monthly capacity is a bad fit for that shape. You will pay through the quiet quarters and hit the ceiling in the busy ones.
Contingency absorbs volatility better than any subscription, because the cost only exists when the outcome does. That optionality is what the premium buys, and in a volatile hiring pattern it is worth every cent.
The nuance: unpredictable is not the same as unplanned. Plenty of companies believe their hiring is unpredictable when it is actually just unwritten. If you have never mapped the next twelve months, you do not know your pattern yet. Do the exercise before you conclude you are volatile.
3. The Roles Have Nothing to Do With Each Other
The case for any embedded or fractional model rests on compounding. Map a market once, work it continuously, and the second hire out of that market is faster and cheaper than the first.
That only holds if the roles come from the same market. A Customer Success Manager, a Sales Engineer and an Account Executive in Australian B2B SaaS draw from an overlapping talent pool, and the same conversations serve all three.
A CFO, a warehouse manager and a front-end developer do not. There is no shared market map, no reusable pipeline, no transferable calibration. You are running three unrelated searches that happen to be billed together.
For unrelated senior or specialist roles, go to a specialist in that discipline. Their network in that niche is worth more to you than continuity in a market they do not serve.
4. You Need Somebody Started Yesterday
Any ongoing model has a setup cost. Briefing, market mapping, calibration on your bar, agreeing a scorecard. It pays back over months and it is the reason hire six is faster than hire one.
If a critical role has been vacant for three weeks and the board is asking, you do not want to be in week one of a mapping exercise. You want somebody who already has fifteen relevant people in their network and can make calls this afternoon.
That is exactly what a good specialist agency is for. Use one. Standing start is a real product and it is worth paying for when the clock is the binding constraint.
5. You Already Have an Internal Recruiter and Need Overflow
If there is a talent acquisition function in the building and it is at capacity, adding a second ongoing external function usually creates confusion about ownership rather than adding throughput.
Contingency fits neatly here. Hand out the specific searches your internal team cannot absorb, keep the process and the employer brand in-house, and pay per outcome. Your internal recruiter stays the owner of how hiring works, and the agency is capacity, not a parallel system.
When It Is a Habit, Not a Decision
Three situations where reaching for an agency is expensive autopilot:
You are past ten hires a year and still paying per hire. At ten hires, 18 percent is $207,000 annually. That is more than a fully loaded internal recruiter at $135,900, and you are still restarting from zero on every brief. If this is you, the money is already being spent — the only question is whether it buys you anything durable.
You use a different agency for every role. Each one relearns your product, your bar and your process. You are paying the setup cost repeatedly and getting the compounding benefit never. Consolidate, even within a contingency model.
Nobody can tell you your cost per hire. If the number is not tracked, the model was never chosen — it accumulated. Work it out before you renew anything: total external recruitment spend divided by hires made, last twelve months. The number is usually larger than people expect and it makes the next decision obvious.
How to Decide in Ten Minutes
- List the commercial roles you genuinely expect to hire in the next twelve months. Budget holder identified, probable start date. Not the aspirational org chart.
- Count them. Under five or six: use an agency, stop reading.
- Check whether they cluster into one market. If they scatter across unrelated functions: use specialists per role.
- Work out your last twelve months’ cost per hire. If nobody knows it, that is the first thing to fix, before choosing any model.
- If you are between six and twenty clustered roles, with a known cost per hire that is climbing, you are in the band where a fixed monthly model wins.
Most companies who ask me about fractional talent acquisition should be using one. A meaningful minority should not, and I would rather say so on a first call than take the money and be wrong about it in month four.