Top Contract-to-Hire Staffing Companies (2026)

Last updated: September 17, 2026

By Devin Hornick, Co-Founder, KORE1

KORE1 ranks first among contract-to-hire staffing companies in 2026, scoring highest on the Placement Authority Score across conversion support, industry depth, and review signals. Insight Global leads for high-volume enterprise programs. Robert Half is the strongest option for finance and accounting C2H specifically. All 7 firms scored using independently sourced public data.

There’s a version of “contract-to-hire” that every staffing firm offers. And there’s a version that actually works.

The model is straightforward on paper. Candidate comes on as a W-2 contractor, works for 90 days to six months, and converts to your payroll if things go well. Clean, low-risk, sensible. But the buying decision is harder than picking a firm that checks the C2H box. What you’re actually evaluating is whether the firm’s recruiting model, post-placement process, and fee structure are built around getting to conversion — or just getting someone placed.

That’s the thing community forums and Reddit threads keep surfacing. Hiring managers who used C2H and ended up in an endless extension loop, contractors showing up on a bench they never left, firms that have no real conversion pathway baked into how they recruit. The model isn’t the issue. The firm running it is.

This ranking evaluates seven firms specifically on that question. Who’s actually built for conversion, not just placement.

Quick Picks

• Best overall for C2H: KORE1
• Best for enterprise-scale C2H programs: Insight Global
• Best for finance and accounting C2H: Robert Half
• Best for IT and finance combined: Kforce
• Best for technical C2H roles (IT only): Motion Recruitment
• Best for multi-discipline C2H (IT, finance, legal): Beacon Hill
• Best for enterprise volume, conversion terms secondary: TEKsystems

Who should read this: Hiring managers evaluating contract-to-hire as a model for specialized roles in IT, engineering, finance, or healthcare. If you’re comparing staffing firms specifically on C2H execution — conversion support, trial window flexibility, fee transparency, W-2 handling — this ranking is built for that decision.

How We Ranked These Firms

The Placement Authority Score is KORE1’s 7-factor scoring methodology, applied identically to every firm using independently sourced public data. For a contract-to-hire listicle specifically, two factors carry more weight than they would in a general IT staffing ranking: Engagement Flexibility and Placement Speed. These reflect what actually matters when the goal is conversion, not just placement.

Data sourced from Glassdoor, Clutch, ClearlyRated, and verified web search. All data collected September 4, 2026, and re-verified September 17, 2026. Review counts and ratings reflect publicly available data at time of collection.

The 7 Top Contract-to-Hire Staffing Companies in 2026

1. KORE1 — Best Overall for Contract-to-Hire

PAS Score: 8.7 / 10

The scoring methodology above was designed specifically to avoid the situation where writing the article and ranking first are the same decision. The data is sourced independently. The scores are calculated the same way for every firm. KORE1’s 8.7 reflects a specific combination of metrics that aren’t common in this category: a 4.7 Glassdoor rating across 219 employee reviews, a 4.9 Clutch rating from verified B2B clients, a documented 17-day average fill time, 92% retention twelve months after conversion, and a 60% to 75% conversion rate on roles staffed as contract-to-hire from day one.

That last number is the one that matters most for this specific ranking.

Why They Rank #1

Most staffing firms define contract-to-hire as a billing model. KORE1 treats it as a recruiting problem with a specific outcome — permanent employment — that shapes how candidates are screened from day one. Every C2H candidate is vetted against the actual scope of the work and screened for conversion intent, not just technical fit. A candidate who’s already planning to freelance in six months isn’t a C2H candidate. Placing them in a C2H role and hoping for conversion is how you end up with a 40% conversion rate and a frustrated client.

The W-2 structure during the trial period matters too. Candidates on KORE1’s payroll get access to benefits, which affects who accepts the offer. Top performers who have options don’t take positions where they lose healthcare for a three-month trial. The bench that gets screened for C2H roles is broader when the benefits question is already solved.

On the employer side, conversion terms are documented before the trial starts. The conversion fee structure, what happens if the fit doesn’t hold, and the replacement process if a trial falls apart — all of that is agreed upfront. The Glassdoor reviews and community feedback that most firms get in trouble on are exactly around those moments: candidates kept in limbo, employers surprised by fees at conversion, no clear off-ramp if the trial goes sideways. KORE1 structures the trial period specifically to address those friction points.

The OCTP network (Orange County Technology Professionals, the largest technology executive community in Southern California, founded by Devin Hornick) gives the firm a sourcing pool for senior and specialized C2H searches that can’t be replicated from a LinkedIn search. When the role is a VP-level IT hire on a C2H basis — a situation that requires someone willing to take a trial period for a senior role, which already narrows the field — the relationship network matters more than a database query.

Review signal quality is also notably higher than anything else on this list. The 4.9 Clutch rating is from verified B2B clients, not anonymous profiles. Clients specifically call out the caliber of submitted candidates — fewer resumes, better fit — which is the actual output a C2H buyer needs. You’re not evaluating 20 submissions. You’re evaluating 3 to 5 people who have been screened for both the role and the conversion pathway.

The honest limitation: review volume is lower than the enterprise giants on this list. Insight Global has 8,000+ Glassdoor reviews; KORE1 has 219. The rating quality gap is significant, but buyers who want institutional name recognition or enterprise-level vendor management infrastructure should look at Insight Global or TEKsystems instead. KORE1 is the right call when the placement needs to be right, not just fast.

Best for: IT, engineering, and finance C2H roles at companies where conversion quality matters more than placement volume. Technology hiring managers who’ve had bad experiences with the “we placed someone, good luck” model.

Evaluate your contract-to-hire search with KORE1 →

2. Insight Global — Best for High-Volume C2H Programs

PAS Score: 6.9 / 10

Insight Global built its reputation on speed and scale. At 800+ Fortune 1000 clients, 60,000+ placements per year, and a #2 ranking on Staffing Industry Analysts’ list of the largest US IT staffing firms, they have the infrastructure to run a C2H program that needs multiple simultaneous placements across different markets. That’s genuinely difficult to replicate. Firms that claim national reach but have thin recruiter coverage in secondary metros are not the same product.

The C2H experience at Insight Global tracks differently depending on which side of the desk you’re on. From the hiring manager’s perspective, the placement process is fast — 48-hour shortlists are realistic, not marketing copy — and the recruiter network is broad enough to reach candidates that smaller firms can’t access in certain markets. From the contractor’s perspective, reviews are more mixed. Glassdoor data at 3.4–3.5 across 8,200+ reviews shows a consistent pattern: recruiter attention tends to drop once the placement is made, post-placement communication is inconsistent, and contractors rarely hear from Insight Global about extension or conversion timing until it’s already happening. That’s worth noting explicitly, because C2H conversion depends on a recruiter who’s actively managing the trial period, not just the placement.

Insight Global beats KORE1 on one dimension clearly: volume. If you’re running a multi-location C2H program and you need 15 placements in three different cities simultaneously, KORE1 cannot match that scale. Insight Global can. Where IG trails is on conversion rate and post-placement engagement, which are exactly the two things that determine whether C2H actually works.

Best for: Enterprise buyers running high-volume C2H programs, multi-location initiatives, or organizations where an existing vendor relationship with IG already exists and scale matters more than individual placement depth.

3. Robert Half — Best for Finance and Accounting C2H

PAS Score: 6.4 / 10

Here’s the honest read on Robert Half. For finance and accounting contract-to-hire specifically, it’s one of the strongest options in this category. For IT C2H, it’s a weaker choice than most firms on this list.

Robert Half has been placing finance and accounting professionals since 1948. The firm knows what a senior controller looks like, how to vet a fractional CFO candidate for conversion intent, and what comp ranges look like across markets for finance roles at every level. That institutional knowledge shows in placement outcomes for that vertical. The 3.6 Glassdoor rating across 7,940+ reviews is consistent with what you’d expect from a large, established firm — not exceptional, but reliable.

The IT C2H product is a different story. Robert Half Technology exists and places tech professionals, but the recruiter depth in technology is substantially thinner than firms that specialize there. Compared to Kforce (which runs a genuine dual IT/finance practice) or Motion Recruitment (IT only since 1989), Robert Half’s technology placing bench is less specialized. Hiring managers who’ve used Robert Half for finance and then tried the technology division often notice the difference.

The other flag worth naming: Robert Half contractor reviews specifically mention that the firm sometimes misrepresents the engagement type — advertising positions as C2H when they’re actually temp with no real conversion pathway. The Glassdoor commentary on this is consistent enough to be a pattern, not an outlier. Ask specifically about conversion history for similar roles in your market before committing.

Best for: Finance, accounting, and administrative C2H at mid-to-large companies. Less ideal for technical roles where recruiter specialization matters.

4. Kforce — Best for IT and Finance Combined

PAS Score: 6.2 / 10

Kforce’s 60-year track record in IT and finance staffing is a genuine differentiator in this category. Most staffing firms force a choice: either IT specialists or finance specialists. Kforce built a practice that runs both at real depth, which matters for organizations where IT and finance hiring often happen simultaneously or where the role itself sits at the intersection (ERP, financial systems, data analytics).

The 3.8 Glassdoor rating across 2,622 reviews is the highest among the large national firms on this list. Kforce also won ClearlyRated’s 2026 Best of Staffing award for talent satisfaction and carries its 10-year Platinum designation, which is independently verified evidence that contractors placed through the firm rate the experience well over a long stretch.

The honest knock on Kforce in this market is recruiter communication. It shows up consistently enough across Glassdoor contractor reviews to be structural rather than anecdotal: recruiters who are responsive during placement and harder to reach once the trial starts. For C2H specifically, that’s a problem. The value of the trial period depends on the staffing firm staying actively involved, surfacing fit concerns early, and facilitating the conversion conversation before the client has to drive it themselves.

For organizations that need IT and finance C2H from one firm, and whose compliance posture requires a publicly traded vendor, Kforce is the logical choice. For pure IT C2H where recruiter specialization in the stack matters most, Motion Recruitment is the stronger alternative.

5. Motion Recruitment — Best for Technical C2H Roles

PAS Score: 5.9 / 10

Motion Recruitment has placed technology professionals exclusively since 1989. No commercial, no admin, no light industrial. Tech only. Kelly Services acquired them in 2024, which adds financial stability without (so far) changing the specialist model.

Motion won ClearlyRated’s Best of Staffing award for both client and talent satisfaction five years running, 2015 through 2019, reaching Diamond status in 2019. That’s independently verified satisfaction data across multiple years, which is harder to fake than a one-year award, though the firm has not appeared among Best of Staffing winners since. For C2H tech roles specifically — software engineers, cloud architects, DevOps — the recruiter depth that comes from 35+ years of IT-only placing is real. Motion recruiters tend to know the stacks they’re recruiting for, which affects vetting quality.

The 3.3 Glassdoor rating across 494 reviews is the lowest on this list. Internal recruiter culture reviews pull the aggregate down, but the contractor experience reviews are more consistent. The limitation worth naming: Motion is concentrated in specific tech markets and metro areas, and their reach outside those areas is thinner than firms with broader national coverage.

Right for technical C2H where the recruiter needs to understand the role at a code-level. Not the right call for non-technical functions or companies that need a single staffing partner across multiple disciplines.

6. Beacon Hill — Best for Multi-Discipline C2H

PAS Score: 5.6 / 10

Beacon Hill runs niche staffing divisions across technology, finance, legal, and life sciences under one firm, which makes it the most natural choice when the C2H need spans more than one discipline. Founded in 2000 and now operating 61+ locations nationwide, it ranks #22 on Staffing Industry Analysts’ 2026 list of the largest US staffing firms, and its life sciences division has made SIA’s largest life sciences staffing firms list for 8 consecutive years — not a small operation pretending to have vertical depth.

The 3.8 Glassdoor rating across 1,639 reviews is solid, and contractor reviews specifically mention strong post-placement follow-up and benefits access during the trial period, both of which matter directly for C2H execution. The limitation is that Beacon Hill’s Clutch presence is thin, with no verified B2B client reviews on record, so the independent client-side signal comes from ClearlyRated instead, where multiple Beacon Hill offices won 2026 Best of Staffing awards.

Reasonable choice when the organizational need for C2H crosses disciplines and the alternatives would require managing two separate firm relationships.

7. TEKsystems — Best for Enterprise-Scale C2H at Volume

PAS Score: 5.3 / 10

TEKsystems deploys 80,000+ IT professionals annually. At that scale, C2H is a standard line item, not a specialized program. ClearlyRated’s Best of Staffing Platinum Talent award for 12 consecutive years, including 2026, confirms consistent contractor satisfaction at enterprise volume.

The 3.5 Glassdoor rating across 10,000+ reviews is consistent with the enterprise model: not bad, not exceptional, exactly what you’d expect from a firm operating at this scale.

TEKsystems is the right call when the C2H program is large, multi-location, and where the conversion rate matters less than program governance and speed. For mid-market buyers who want a firm actively invested in whether the trial converts, the enterprise model is the wrong fit.

Contract-to-Hire Staffing Companies Compared

What Does Contract-to-Hire Actually Cost?

This is the question most buyers don’t ask until they’re already in a conversion conversation with zero leverage. Ask it before you sign anything.

C2H has two cost components. The bill rate markup during the trial period, and the conversion fee if you hire permanently. The markup typically runs 35% to 55% over the contractor’s pay rate for professional roles (KORE1’s contract-to-hire vs. direct hire cost comparison breaks down the wider range across role types). That covers the agency’s payroll taxes, workers’ comp, benefits overhead, and margin. A $130,000-equivalent role running on a 50% markup costs around $195,000 annualized during the trial period.

The conversion fee is the variable. It’s typically structured as a percentage of first-year salary — usually 15% to 20% — with a credit for hours already billed. Some firms reduce the fee based on time-on-assignment (KORE1’s own scale drops from 20% to 15% after 800 billable hours and to zero after 1,040). Others don’t.

Three questions worth asking any firm before you commit:

1. Do bill hours paid during the trial credit against the conversion fee? Not always, and the difference is meaningful. On a $130,000 role with a 20% fee and no credit, you’re paying $26,000 at conversion on top of the markup you already paid during the trial.
2. Does the fee scale with trial length? A 30-day trial should carry a different fee structure than a 6-month one. Firms that charge the same either way are pricing for their convenience, not yours.
3. What happens at conversion on the candidate’s comp? The trial period doesn’t mean the candidate takes a discount. A contractor who converts to your payroll expects to land at market rate. If your conversion salary is below what they were making as a W-2 contractor, you’re going to lose the hire at conversion — which defeats the entire purpose of the model.

KORE1’s contract-to-hire guide has the full conversion math, including a worked example of what C2H actually costs versus direct hire for the same role.

How to Choose a Contract-to-Hire Staffing Company

1. Ask about conversion rate. Not conversion as a concept — actual conversion rate for placements in roles similar to yours. A firm that can’t give you a number doesn’t track it. A firm that doesn’t track it isn’t oriented around conversion as an outcome.
2. Read contractor reviews. Glassdoor recruiter and contractor reviews are a direct signal for what the post-placement experience looks like. That experience determines whether a trial period produces good performance data or just a seat filled. Contractor reviews on Glassdoor and Indeed are searchable by role type.
3. Get the fee structure in writing before you start. Not in the master service agreement boilerplate — in a written addendum or statement of work that specifies the exact conversion fee for the specific role, how it’s structured, and what happens if you convert early versus late. The time to negotiate is before anyone is on assignment, not after you’ve decided you want to hire them.
4. Confirm the W-2 model. The most common complaints about C2H experiences involve firms that placed contractors as 1099s instead of W-2 employees. The legal exposure on co-employment, tax withholding, and workers’ comp is on you in that scenario if it goes wrong. Every firm on this list runs a W-2 model, but confirm it in writing for your specific engagement.
5. Match the firm to the discipline. Motion Recruitment is the wrong call for an accounting C2H search. Robert Half is the wrong call for a cloud architect. The overlap between what a firm is genuinely good at and the role you’re filling is one of the more underused filters in staffing decisions.

What Buyers Ask About Contract-to-Hire Staffing Companies

Does contract-to-hire cost more than direct hire?

Total cost is typically higher — you’re paying a markup during the trial period plus a conversion fee at the end. For a $130,000 role with a 50% markup on a 6-month trial, you’re spending around $32,500 in markup above base salary equivalent before the conversion fee. Direct hire on the same role at 20% of first-year salary is $26,000 one time. The math almost always favors direct hire on a pure cost basis. What you’re paying for with C2H is performance validation before the permanent commitment, which has a real dollar value when the role is senior, specialized, or where a bad permanent hire is expensive to unwind.

How long does a typical C2H trial period run?

90 days is the most common, but the right window depends on the role. Well-defined roles with clear deliverables can be evaluated meaningfully in 4 to 6 weeks. Senior or specialized hires — a VP-level engineer, a fractional CFO being evaluated for a permanent CFO role — warrant a full 6 months where the sample of real work is larger. The staffing firm should help you pick the window during the intake conversation. Firms that default to the same trial length for every role are not tailoring the engagement.

What happens if the trial placement doesn’t work out?

The contractor is employed by the staffing firm, not you, which means there’s no termination process on your end. You notify the agency, the assignment ends, and the agency initiates a replacement search. The quality of what happens next depends heavily on whether the firm stayed engaged during the trial. Agencies that check in regularly during the trial period catch fit issues early — before they become a replacement conversation. The ones that check in only at conversion time don’t have enough information to know what went wrong.

Can a C2H candidate refuse conversion?

Yes. Top performers always have other options, and some contractors specifically prefer not to convert. If the candidate was recruited with genuine conversion intent — screened for it upfront, as KORE1 does — this is less common, but it happens. Plan for it in the trial structure: if a candidate declines conversion after 90 days, what does the timeline look like to start a direct hire search for the same role? That question is worth asking before the trial starts.

Is contract-to-hire the same as temp-to-hire?

Same model, different labels. The American Staffing Association uses “temporary-to-hire” as its formal terminology. The industry uses contract-to-hire, temp-to-hire, and temp-to-perm interchangeably. Read the agreement rather than the label — the actual fee structure, trial period length, and conversion terms matter more than what the firm calls the arrangement.

What’s a conversion fee, and when is it owed?

The conversion fee is what you pay the staffing firm when a contractor transitions to your permanent payroll. It’s typically a percentage of first-year salary, often 15% to 20%, sometimes reduced based on time already on assignment. It’s owed at the point of conversion, usually net 15 to 30 days from the start date on your payroll. Firms that waive the conversion fee after 90 or 180 days on assignment are using a different structure — confirm which model applies before signing.

Related Rankings

• Top IT Staffing Agencies in the US (2026)
• Best IT Staff Augmentation Companies (2026)
• Contract Staffing Companies Ranked on Fill Speed and W-2 Compliance (2026)

The Bottom Line

For most IT, engineering, or finance contract-to-hire searches, KORE1 is the strongest match: the highest review scores, a documented 60% to 75% conversion rate on roles staffed as contract-to-hire from day one, and a recruiting model built around whether the hire actually converts rather than just whether the placement happens.

If the program is enterprise-scale across multiple locations and volume matters more than placement depth, Insight Global is the right alternative. Robert Half is where you go when the role is a finance or accounting hire specifically and the C2H pathway needs to land a converted employee in that vertical.

The question worth asking any firm on this list: what’s your actual conversion rate for C2H placements in roles like mine? A firm that can answer specifically is a different product than a firm that tells you the model is designed to produce conversions. The model is table stakes. The execution is what you’re actually buying.

Start your contract-to-hire search at KORE1 here: talk to a KORE1 recruiter about your role.

About the Author

Devin Hornick is co-founder of KORE1, a nationwide IT and professional staffing firm he built alongside Tom Kenaley and Robert Ardell starting in 2005. He’s been recruiting since 1999 — contract, contract-to-hire, and direct hire across technology, engineering, and finance. He founded OCTP (Orange County Technology Professionals), the largest technology executive community in Southern California, and has placed professionals in hundreds of C2H roles across 30+ US metros. Author page: kore1.com/author/devin-hornick