TL;DR

A staffing agency matches workers to employers, typically for temporary, contract, or direct-hire roles. The agency handles sourcing, screening, and often payrolling, charging the employer a markup on labor or a placement fee. It sits between the labor market and the employer, absorbing administrative complexity in exchange for a margin.

What a Staffing Agency Actually Does

A staffing agency is a labor intermediary with a business model built on margin. For temporary and contract placements, the agency employs the worker directly, pays their wages and benefits, handles payroll taxes and compliance, and bills the client company a higher hourly rate. The difference is the gross margin, which typically runs 20 to 50 percent depending on the role type and market. For direct-hire placements, the model shifts: the agency sources and presents candidates, the client hires the worker directly, and the agency collects a one-time placement fee, usually 15 to 25 percent of the candidate's first-year salary.

The three core service lines are temp, temp-to-perm (also called temp-to-hire or contract-to-hire), and direct hire. Temp places a worker for a defined period with no hiring expectation. Temp-to-perm starts as a contract with a built-in conversion option. Direct hire is a permanent placement from day one.

Staffing agencies span from global generalists like Adecco, Manpower, and Randstad handling millions of placements annually, to boutique shops that work a single geography and skill set. Specialization drives quality in this market. An agency that only places surgical technologists in hospital systems knows the candidate market, the certification requirements, and the hiring manager preferences far better than a generalist running the same search.

Why It Matters for Recruitment

For employers, staffing agencies trade margin for speed, flexibility, and risk reduction. Hiring directly for a temporary need means onboarding an employee you may need to terminate in 90 days, which carries legal exposure and administrative overhead. Outsourcing that to a staffing agency transfers the employment relationship entirely. The agency is the employer of record. The client company directs the work; the agency handles everything else.

For candidates, the relationship is different. A staffing agency is a channel to employment, not an advocate in the way an executive search firm might be. The agency's client is the employer. Candidates who understand this navigate the relationship more effectively: communicate clearly, stay available, and treat the staffing coordinator like a gatekeeper who controls access to opportunities.

For internal talent acquisition teams, staffing agencies are a surge capacity tool. When hiring volume spikes, when a specialized skill set is outside the team's sourcing range, or when a role needs to be filled faster than the direct hiring process allows, a staffing agency fills the gap. The cost is higher than a direct hire; the speed and certainty often justify it.

In Practice

A regional healthcare system in Ohio uses a staffing agency to fill nursing shortages across three hospitals. Direct-hire nursing recruitment runs 60 to 90 days from req to start date. When a unit suddenly needs three RNs due to turnover, they can't wait two months. The agency maintains a pre-vetted bench of travel nurses with current credentials and state licensure. Placements happen in 5 to 10 business days. The agency bills $95 per hour per nurse; the hospitals would pay a direct-hire equivalent of about $58 per hour in salary and benefits. The $37 premium covers speed, flexibility, and the agency's employment overhead.

The healthcare system tracks fill rate (percentage of requested placements the agency delivers) and quality score (manager rating at 30 days). Agencies that can't sustain a 90 percent fill rate on urgent requisitions lose the contract. Two agencies are on rotation specifically to ensure coverage if one experiences its own capacity constraints.

Key Facts