Most defense tech startups should run their critical searches as embedded or engaged work, but too many default to contingency because it feels safer. It usually is not. For a hard cleared role, contingency is the model most likely to leave the seat open, because the moment the search gets difficult, the recruiter has every incentive to move to an easier one. The pay-on-hire structure that looks like zero risk is the same structure that quietly deprioritizes your hardest role.
This is not an argument that contingency is bad. It has a real place. It is an argument that founders pick it for the wrong reasons, on the wrong roles, and pay for it later in months of an unfilled seat.
The Three Models, Plainly
There are three common ways to buy outside recruiting help, and they differ by more than when you pay.
Contingency. You pay only when a candidate is hired, typically 15 to 25 percent of first-year base (ISG Partners, Valuable Recruitment, 2026). The search is usually non-exclusive, so several firms work it at once and only the one who places collects. No upfront cost, and all the placement risk sits with the recruiter.
Engaged or retained search. You pay a committed fee, often structured in stages, and one firm runs the whole search exclusively, typically 25 to 33 percent of base (Valuable Recruitment, Pin, 2026). You are buying a completed search, not a lottery ticket.
Embedded recruiting. You bring a recruiter in as an extension of your team on a flat monthly fee, commonly $5,000 to $20,000 depending on volume (Valuable Recruitment, 2026). They own your process, not just a req, and the risk shifts from placement to capacity.
Why Contingency Breaks on Hard Cleared Roles
The problem with contingency on a difficult role is not the fee. It is the incentive.
The hardest search is the first one abandoned. A contingency recruiter only gets paid on a placement, so when a role turns out to be hard, the rational move is to shift effort to an easier one. The independent data on this is stark: 2026 comparisons put committed-search completion around 95 percent against roughly 10 to 30 percent for contingency (RecruitBPM citing iSmartRecruit; atzCRM, 2026). The reason cited is exactly the incentive problem, when a role gets too hard to fill, the contingent recruiter naturally stops working it and moves to lower-hanging fruit. For defense tech, where the roles are cleared, specialized, and slow by nature, that is the entire category of role you are trying to fill.
Several firms churn the same finite pool. Because contingency is non-exclusive, multiple agencies work the same role and race to submit the same small set of cleared, program-specific candidates. You end up with duplicate submissions, confusion over who represents whom, and a candidate pool that feels picked over rather than mapped. In a market where the qualified pool is already finite, that is the opposite of what you need.
That non-exclusivity carries a quieter risk too. A candidate submitted to your competitors before your diligence closes is a risk you never knew you took, and in a finite cleared pool it can cost you the person you were closest to hiring.
Volume replaces judgment. The model rewards speed, so you get resumes fast. Speed and thoroughness rarely coexist when the pay structure favors speed. What a hard cleared search actually needs is market judgment, knowing who is genuinely viable for this company, this program, this clearance, and this mission, and that judgment is the first thing a volume model drops.
When Contingency Is Actually the Right Call
Contingency is not the enemy, and pretending it is would be dishonest. It is the right tool for a specific job.
Use it when the role is clearly defined and non-critical, the candidate pool is broad, and nothing downstream is waiting on the hire. A role like that has room for a fast, transactional model, and paying only on success is a reasonable way to limit downside. Independent guidance agrees: contingency fits lower annual hiring volume, one-off mid-level roles, and situations where speed matters more than exclusivity (ISG Partners, Valuable Recruitment, 2026).
The mistake is using that tool on a role it was never built for: a cleared, hard-to-fill, program-critical seat where the whole point is depth and persistence.
The Real Reason Founders Choose Wrong
Founders do not pick contingency because they analyzed the models and chose it. They pick it because it feels safe, especially if they have been burned by a recruiter before. Pay only if it works sounds like the low-risk option, so the founder who once paid a retainer and got nothing swings to the model that asks for nothing upfront.
The irony is that on a hard role, that safe-feeling choice creates more risk, not less. The upfront cost was never the real cost. The real cost shows up later, in a critical seat sitting open for months while non-exclusive firms skim the easy candidates and quietly move on.
Two Costs Founders Underestimate
There are two separate costs here, and they are often confused for one. They are not competing figures. They measure different failures, and a bad search can produce both.
The cost of a wrong hire. A mis-hire at the senior IC or engineering manager level costs between 50 and 200 percent of that person’s annual salary in lost productivity, re-onboarding, and recruiting again. That is the price of filling the seat with the wrong person.
The cost of an unfilled or failed senior seat. A failed or delayed senior hire runs an estimated two to three times the role’s annual salary once you count the vacancy, the lost product time, and the restarted search (RecruitBPM, 2026). That is the price of not filling the seat at all. A three-month search that produces no hire costs three months of headcount gap on a team that is already stretched.
Contingency recruiting externalizes both of those risks onto your company. The recruiter absorbs neither. They move on to the next search. Measured against either number, the upfront fee is the cheap part.
What to Look for in a Recruiting Partner
Whether you choose contingency, engaged, or embedded, the criteria for evaluating a defense tech recruiting partner are the same.
They should understand the market specifically. Not just recruiting in general. Defense tech, cleared talent, dual-use deep tech. Ask them what TS/SCI processing looks like in 2026. Ask how they source cleared software engineers who are not actively looking. If they cannot answer both without hesitating, they are not built for this.
They should tell you the truth before the search starts. A real recruiting partner will tell you if your compensation is below market, if your location creates a candidate headwind, or if your clearance requirement adds six months to the timeline. That conversation is uncomfortable. It is also the one that saves you from a four-month search that ends with no hire.
They should have a defined process. Sourcing strategy, screening criteria, interview coordination, offer stage guidance. If they cannot walk you through it in ten minutes, they are improvising.
How ALAC Thinks About It
We lead with the model that fits the role, not the model that is easiest to sell. For most scaling defense companies, that means embedded or engaged work on the searches that actually matter, and honest advice to use contingency only where it genuinely fits. On a recent set of nine RF and EE searches for a venture-backed defense company, every role was filled in under 45 days, and none of them would have survived a non-exclusive contingency scramble. Different, not better. If you are deciding how to run a hard cleared search, book a call and we will tell you which model the role actually needs, even when the answer is not us.
If you want the market data behind these decisions, our 2026 cleared-talent compensation report covers what cleared engineers actually earn, and our Northern Virginia market page covers the corridor where most of this hiring happens.
Sources
ISG Partners, "The Real Cost of Recruiting in 2026: Fee Models Compared," June 2026. Valuable Recruitment, "Recruitment Agency Fees: Contingency vs Retained vs Embedded (2026)," May 2026. RecruitBPM, "Retained vs Contingency Recruitment 2026" (citing iSmartRecruit completion-rate data), Feb 2026. atzCRM, "Retained vs Contingent Recruiting: How to Choose in 2026," March 2026. Pin, "Retained vs Contingent Search: How to Choose in 2026," May 2026.
Fee ranges and fill-rate figures are 2026 market estimates and vary by firm, geography, and role difficulty. This is market analysis, not a quote.
