Contract job postings in life sciences jumped 94 percent in a year. Full-time postings rose 5 percent. That gap, from BioSpace’s Q1 2026 job market report, is not a rounding error. It is an entire industry repricing hiring risk in real time, and the same recalculation is happening in manufacturing plants, service firms, and defense programs. The question for leaders is no longer whether to use flexible hiring models. It is knowing when contract-to-hire reduces risk and when it quietly creates it.
Start with the landscape. Staffing companies employed 9.5 million temporary and contract workers in the United States over the course of 2025, generating $113.5 billion in sales, according to the American Staffing Association. Both numbers were down about 8.5 percent from 2024, the tail end of a two-year contraction, but the bleeding has slowed. ASA’s first quarter 2026 data showed the smallest seasonal decline since 2022, and the year-over-year employment drop narrowed to 4.6 percent, the best reading in over three years. Bureau of Labor Statistics data tells the same story from a different angle: temporary help services employment held near 2.5 million in June 2026, essentially flat over the year, after a long slide from its post-pandemic peak.
Flat is the interesting part. Total nonfarm payrolls grew by just 57,000 in June, and hiring across most industries remains cautious. In that environment, a stabilizing contingent workforce means companies are choosing flexibility on purpose, not by accident. And within that choice sits a specific model that deserves more scrutiny than it usually gets: contract-to-hire, where a person starts on a staffing firm’s payroll with the stated intent of converting to permanent status if the fit works out.
Used well, contract-to-hire is one of the few tools that lets both sides test the biggest assumptions in any hire before committing. Used carelessly, it drives away the exact candidates a company needs most. The difference is knowing which situation you are in.
Where contract-to-hire earns its keep
The case for extended evaluation rests on an uncomfortable fact: interviews are a weak test. Leadership IQ tracked more than 20,000 new hires and found 46 percent failed within 18 months, and 89 percent of those failures came down to attitude, coachability, and temperament rather than technical skill. Those are precisely the qualities a three-round interview process struggles to measure and a six-month working relationship reveals in full. Watching someone handle a missed deadline, a difficult stakeholder, or a deviation investigation tells you things no reference call ever will.
That logic applies with real force in four situations.
Uncertain demand. When a role depends on a contract award, a product launch, a clinical readout, or a client renewal, a permanent requisition is a bet on a forecast. A contract engagement matches the commitment to the certainty. If the demand materializes, convert. If it does not, the engagement ends without a layoff, a severance negotiation, or a hit to the employer brand.
Unproven new roles. Companies across every industry are creating positions with no internal precedent, from AI process leads to sustainability managers. When nobody can yet describe what success looks like, a conversion checkpoint at month six forces the organization to define it. The trial period tests the role design as much as the person.
Frozen headcount. In budget-constrained quarters, contract dollars often live in a different line than permanent salaries. Contract-to-hire lets a team get critical work moving now and make the permanent case later with evidence instead of projections. It is a workaround, and also the honest reality behind much of the model’s popularity.
Real two-way evaluation. The test drive runs in both directions, and candidates know it. ASA’s research found 64 percent of staffing employees work temporary or contract jobs specifically to fill a gap between jobs or as a path to a permanent one. For career changers, returners, and people relocating, a contract start is not a consolation prize. It is a fair audition they actively want.
Where it backfires
The model fails predictably when it is applied to the wrong talent pool, and the failure is usually invisible: the best people simply never enter the process.
Senior passive candidates will not audition. A director of quality with 15 years at her current employer is not resigning a permanent position, with its tenure, benefits, and internal standing, for a six-month tryout. Extending a contract-to-hire offer to that person does not manage risk. It transfers all of it to her, and she will decline. For leadership and hard-to-fill technical roles, the model screens out the strongest candidates before the first conversation.
Cleared talent is too scarce to gamble. In the defense sector, ClearanceJobs found limited cleared talent is the top recruiting challenge, cited by 56 percent of recruiters, and 43 percent of rejected offers die because of competing offers. A Top Secret clearance took 227 days to process for the fastest 90 percent of industry cases in early fiscal 2026. A candidate who already holds one carries an asset that took most of a year to create, and every cleared employer knows it. Asking that person to accept trial status is an invitation to interview elsewhere.
Hot-market candidates have permanent options. The same BioSpace data showing the contract surge also shows where full-time competition stays fierce. A candidate fielding two permanent offers and one contract-to-hire offer does the math in seconds. When the skill set is scarce, the trial structure reads as lower commitment and loses on signal alone, even at a higher hourly rate.
There is also a self-inflicted version of the failure: companies that use contract-to-hire as a vague maybe. When conversion is a possibility nobody defined, candidates figure it out fast, the arrangement sours, and word travels. The model only works when the intent is real.
The mechanics leaders should understand
Contract-to-hire involves legal and operational machinery that many executives sign off on without examining. Four pieces matter most.
Who actually employs the worker. During the contract period, the staffing firm is the employer of record. It runs payroll, withholds taxes, carries workers’ compensation coverage, and, at reputable firms, offers benefits access. The client company directs the day-to-day work. That split is the whole point of the structure, and it is where the next issue comes from.
Co-employment is real, and it is manageable. Co-employment means two companies each hold legal rights and obligations toward the same worker, which is the normal condition of any staffing arrangement, not a defect in it. The EEOC’s guidance on contingent workers makes clear that when a client supervises daily work, sets schedules, and controls assignments, both the client and the staffing firm can carry employer obligations, and a worker with a valid claim can recover from either or both. Staffing Industry Analysts’ guidance on limiting exposure is practical: put the staffing firm’s obligations in a clear service agreement with indemnification, let the firm handle wages, screening, and insurance, and keep contractors out of your employee benefit and stock plans. Companies that treat co-employment as a reason to avoid contingent labor entirely are managing a headline, not a risk.
Conversion fees are negotiable, before the start date. When a contractor converts to permanent, the staffing firm typically charges a conversion fee, since it is giving up its margin on the placement. Common structures include a placement fee prorated downward for each month worked, or a flat fee reduced by a credit for every hour billed. Under a typical twelve-month proration, the charge shrinks every month and reaches zero after a year. The mistake is discovering the fee at conversion time. Sophisticated buyers negotiate the schedule into the original agreement, not at month five.
In GMP environments, turnover is a compliance event. In pharmaceutical and medical device manufacturing, every person touching product or data must be trained and qualified under FDA regulations, and the agency’s data integrity guidance states plainly that personnel should be trained to prevent and detect data integrity issues as part of routine CGMP training. A contractor who leaves at month five takes months of site-specific qualification out the door and creates a documentation trail someone must manage. Contract-to-hire can still work in these settings, but leaders should price in the requalification cost of a failed conversion and weight the model toward roles where they are confident converting.
How this plays across four industries
In life sciences, the 94 percent contract surge reflects a rational response to volatile funding and pipeline uncertainty, and contract-to-hire fits beautifully for project-linked roles: validation engineers, tech transfer specialists, clinical operations staff whose long-term need depends on a readout. It fits poorly for senior quality leadership, where the credible candidates are employed, passive, and unwilling to audition, and where GMP training economics punish churn.
In manufacturing, the model is a long-standing institution. Industrial roles make up 36 percent of all staffing work, per ASA, and temp-to-perm pipelines for operators, technicians, and supervisors let plants evaluate safety behavior and reliability in place, which no interview can simulate. The current risk is at the skilled end: maintenance techs and controls engineers are scarce enough that competing permanent offers arrive quickly, so plants that force everything through a trial pipeline lose their hardest hires.
In defense, the calculus splits cleanly on the clearance line. For cleared technical and program roles, the trial model is usually a self-inflicted wound for the reasons above. For uncleared corporate functions, finance, HR, contracts administration, and facility roles, contract-to-hire works the way it does anywhere else, and it gives contractors staffing up ahead of an award a way to build capacity without betting permanent headcount on revenue that may not arrive.
In service industries, uneven client demand makes the flexibility argument strongest. Firms ramping for a new account or a seasonal peak can build teams on contract, convert the proven performers, and release capacity if the book of business shifts. The caution mirrors the other sectors: for revenue-critical and specialized roles, the strongest candidates hold permanent offers, and the trial structure costs more in lost candidates than it saves in avoided mis-hires.
What sophisticated organizations do differently
They decide role by role, not by policy. A blanket rule in either direction is lazy risk management. The useful question for each requisition: is the dominant risk here a mis-hire or a missed hire? Uncertain roles with reachable talent pools favor contract-to-hire. Scarce, senior, or cleared talent favors a direct offer with a strong onboarding plan.
They tell candidates the truth. The strongest firms name the conversion intent, the criteria, and the timeline in the first conversation, in writing. If conversion depends on a contract award or budget approval, they say so. Candidates accept honest uncertainty far better than vague promises, and the ones who walk away were going to walk away at month four anyway.
They define conversion criteria and a date. Not “we’ll see how it goes.” A specific evaluation window, usually three to six months, specific performance measures, and a named decision maker. The conversion talk gets scheduled on day one, not left to memory.
They pay properly during the contract. A market-rate wage, benefits access through the staffing partner, and no quiet discount because the person lacks permanent status. Underpaying during the trial selects for candidates with no other options, which defeats the entire purpose of using the period as an assessment.
They treat the contract period as structured data. The same firms that run disciplined interviews run disciplined trials: a real onboarding plan, checkpoints at 30, 60, and 90 days, and written assessments against the criteria. An unstructured trial just delays the same gut-feel decision six months and pays a conversion fee for the privilege.
What this means for boards and CEOs
First, ask where your organization sits on the flexibility curve. The contingent market is stabilizing after two down years, life sciences contract demand nearly doubled, and your competitors are already using contract structures to match workforce commitments to demand certainty. If your only hiring mode is the permanent requisition, you are carrying forecast risk your peers have laid off.
Second, require a segmentation logic before contract-to-hire becomes habit. The model should be a deliberate choice per role family, with a stated rationale, not the default because permanent requisitions are hard to approve. Somewhere in your organization right now, a hiring manager is probably offering a trial arrangement to a candidate who has two permanent offers pending.
Third, put the mechanics under someone’s ownership. Conversion fee schedules negotiated up front. Co-employment hygiene in every staffing agreement. A trained eye on GMP and cleared-role exceptions. These are unglamorous details that determine whether the model saves money or leaks it.
The deeper point is that contract-to-hire is neither a bargain bin nor a magic de-risking device. It is a tool with a sharp edge and a specific grip. Nearly half of new hires fail within 18 months, mostly for reasons interviews cannot see. For the right roles, an extended look is the cheapest insurance available in hiring. For the wrong ones, it is a tax on your candidate pool. The organizations that win with it know which is which before the requisition opens.
RX2 Solutions is a workforce solutions firm specializing in HR outsourcing, executive search, and strategic staffing. We partner with organizations to build high-performing teams through customized talent strategies, leadership placement, and scalable workforce solutions.
📞 Phone: 610.340.3490
📧 Email: info@rx2solutions.com
🌐 Website: www.rx2solutions.com
RX2 Solutions
A Respectfully Professional People Company
Get the next one of these.
We publish one piece a week on hiring, HR, and leadership in regulated industries. Written by the people running the searches.
One email a week. Unsubscribe in one click. Your address stays with us.
Working on this problem right now?
Talk to a Managing Partner. You will hear back within one business day.
Start a Conversation