Quick answer: for manufacturing and packaging work in Canada in 2026, the strongest staffing agencies are Randstad Canada and Adecco Canada for national volume, Trimax Employment for verified, high-volume line staffing with a two-hour replacement turnaround, Manpower and Drake International for fast high-volume placement, Express Employment Professionals for a local-office industrial network, Liberty Staffing Services for Southern Ontario, GHRC Staffing Solutions for high-speed packaging crews, Aerotek for technical and skilled manufacturing, and Staff Plus for GTA general labour and assembly. A production line stops the moment a worker does not show, so the agency you want is the one that covers your shifts, verifies workers before they reach the floor, and keeps them coming back. This guide ranks all ten and shows what each is best for.

On a production line, staffing is not an HR line item, it is uptime. One unfilled seat on an assembly or packaging line can throttle the whole shift, and Canadian manufacturers are chronically short of people. The Canadian Manufacturers and Exporters reports that roughly 85% of manufacturers cannot recruit the workers they need, Ontario alone is heading for about 22,000 unfilled manufacturing roles a year, and nationally there were 506,700 job vacancies in the first quarter of 2026. The agencies below are the ones plants and packagers actually rely on to keep lines running. First, the five things that separate a good manufacturing staffing partner from a risky one.

What’s in This Guide

• What to Look for in a Manufacturing Staffing Agency
• 1. Randstad Canada
• 2. Adecco Canada
• 3. Trimax Employment
• 4. Manpower
• 5. Drake International
• 6. Express Employment Professionals
• 7. Liberty Staffing Services
• 8. GHRC Staffing Solutions
• 9. Aerotek
• 10. Staff Plus
• Manufacturing Staffing Agencies, Compared
• Five Questions to Ask Before You Sign
• The Bottom Line

What to Look for in a Manufacturing Staffing Agency

Manufacturing staffing is unforgiving in a way office staffing is not: the wrong worker, or no worker, is felt in throughput and safety within the hour. Five factors decide whether an agency keeps your line moving, and they are the lens for the rankings that follow.

• Shift coverage and fill rate. Can it reliably fill day, evening, night and weekend shifts, and hit the number you asked for, not 8 of the 10 you needed?
• Verification before the floor. Does it confirm identity, work eligibility and safety readiness, WHMIS, and food-grade or GMP where you run it, before a worker arrives, or do you find out at the line?
• Retention and no-show cover. Do its workers come back and perform, and what actually happens when someone does not turn up at 6 a.m.?
• Clean administration. Are timesheets, check-in and payroll accurate and digital across a large shift-based crew, or a monthly source of disputes?
• Flexibility and temp-to-perm. Can it flex for a seasonal packaging surge or a new line, and convert your strongest temps to permanent hires?

Hold each agency below against those five, and the right partner for your plant becomes obvious. The rankings blend national scale, industrial specialists, regional players and the modern, technology-run model, so there is a fit whether you run a single line or twenty plants across the country.

1. Randstad Canada

Best for national, multi-site volume. Randstad Canada is one of the largest staffing firms in the country and runs a dedicated manufacturing and industrial desk covering assemblers, machine operators, packagers and general labour. When you need to staff several plants across provinces, or want the reassurance of a global brand and mature compliance, its reach is hard to match. The honest caveat is scale: you are one account among many, the experience varies by branch, and admin runs on legacy systems, so pin down fill-rate commitments and verification steps in writing before you sign. For a plant running continuous shifts, its ability to keep a bench ready across sites is the main reason to accept the trade-offs of scale.

2. Adecco Canada

Best for structured, high-volume onboarding. Adecco Canada pairs national coverage with structured onboarding and compliance across manufacturing, warehousing and logistics, which is useful when you are ramping a large crew and need consistent paperwork and safety induction at volume. As with any national generalist, the quality of a given placement tracks the local branch and recruiter, and volume roles can churn, so ask about recent placements in your product category and how it handles a mid-shift no-show. Its structured onboarding earns its keep when a new line needs dozens of inducted, safety-briefed workers in the same week.

3. Trimax Employment

Best for verified line staffing at speed and scale. Trimax Employment, a Canadian staffing and workforce management company (Ontario THA licence THA-0000002854), is built to do what most agencies make you choose between: national volume and rigorous control. It handles mass-volume staffing and absorbs sudden surges, a seasonal packaging push, a new line, a second shift stood up overnight, while holding a two-hour turnaround on replacements and new positions, so a no-show at 6 a.m. is covered before the line feels it. That speed comes from a large, pre-vetted industrial pool run on an end-to-end platform. Every worker is checked through Trimax Verify before assignment, identity, work eligibility and documents confirmed and flagged with a verified status, so even when you scale fast an unverified worker never reaches your floor. On shift, app-based check-in and check-out with geofencing captures true hours and overtime automatically and feeds straight into integrated payroll, ending the timesheet and payroll disputes that plague large crews. A live dashboard shows your open shifts, assigned workers and hours in real time, per-worker performance history flags your most reliable people, and backup-candidate assignment fills any cancelled shift automatically. You get a dedicated contact, transparent pricing, and national coverage with none of the rigour big agencies lose at volume. Workers can join the Trimax talent pool free of charge.

4. Manpower

Best for sheer placement volume. Manpower is built for high-volume industrial and manufacturing hiring and shines when you need a lot of people quickly, a production ramp, a new shift, a seasonal packaging push. That scale is the draw; the trade-off is the familiar one for a large network, so confirm how personal the service is for your specific site and exactly how it verifies workers before they start. For a short, sharp ramp where the priority is bodies on the line fast, that volume machine is hard to beat.

5. Drake International

Best for fast starts with a Canadian brand. Drake International is a long-established Canadian firm known for getting workers on the floor quickly across manufacturing and general labour, in both temporary and permanent roles, and it also covers office and skilled positions if your needs span the plant and the front office. Ask about recent manufacturing placements in your region and its screening process, since a fast start only helps if the workers are ready. Its mix of temporary, permanent and office placement also suits manufacturers who want one partner across the plant floor and the back office.

6. Express Employment Professionals

Best for a local-office industrial network. Express Employment Professionals runs a wide network of locally owned offices across Canada with a strong light-manufacturing and industrial focus. The model gives you recruiters who genuinely know your regional labour market, backed by a national brand, though depth varies office to office. Confirm which local office would hold your account and how it screens for safety-critical roles. For a manufacturer with plants in several regions but no single national contract, stitching together strong local Express offices can give you specialist knowledge in each market.

7. Liberty Staffing Services

Best for Southern Ontario manufacturers. Liberty Staffing Services has placed light-industrial and manufacturing workers across Southern Ontario since 1999, and a focused regional specialist brings local plant relationships and fast turnaround within its market. For a Southern Ontario operation that is a real edge over a distant national desk; if your sites reach beyond that region, check coverage before you commit. Its long history in the region often means it already knows the plants, the pay rates and the shift patterns on your street.

8. GHRC Staffing Solutions

Best for high-speed packaging crews. GHRC Staffing Solutions, based in Scarborough with offices across the GTA, Durham and Eastern Ontario, supplies light-industrial and manufacturing labour and is known specifically for high-speed packaging crews for food, beverage and consumer-goods producers. If your operation lives and dies by line speed on a packaging run, an agency that staffs exactly that kind of work is worth a call. Confirm its coverage in your area and how it verifies and safety-screens crews. Crews that hit line speed on day one are the difference between a packaging run that ships and one that backs up behind a slow start.

9. Aerotek

Best for technical and skilled manufacturing. Aerotek is a large, highly rated industrial staffing specialist that is strongest where production shades into technical work, maintenance, quality, machine setup and skilled operators. If your plant needs both line labour and harder-to-find technical roles from one partner, that range is valuable. As with any large firm, ask for recent, relevant placements in your discipline and region. For plants investing in automation, its technical bench also helps you staff the maintenance and machine-setup roles that new equipment demands.

10. Staff Plus

Best for GTA general labour and assembly. Staff Plus has supplied general labour, packaging, assembly and forklift operators across the Greater Toronto Area for decades, and for a GTA plant its local depth and quick turnaround can beat a distant national desk. If your work sits outside the GTA, check coverage first, and confirm how it verifies workers for safety-critical roles. For a GTA packaging or assembly operation that needs bodies this week, a local partner that already knows the labour pool can move faster than a distant national desk.

Manufacturing Staffing Agencies, Compared

Best for is a starting point, not a limit; most of these firms staff more broadly. Confirm current coverage, fill rates and verification with each agency. Labour figures: Canadian Manufacturers and Exporters and Statistics Canada.

Staffing a plant or a packaging line? Trimax Employment supplies verified, reliable manufacturing and light-industrial workers across Canada, every one checked through Trimax Verify and managed on a digital, end-to-end platform with backup cover for cancelled shifts. Tell us what you need and we will keep your line staffed.

Five Questions to Ask Before You Sign

Whichever agencies make your shortlist, these five questions separate a partner that keeps the line running from one that stops it:

• What is your fill rate, and what happens on a no-show? You want a real number and a concrete backup plan, not a promise.
• How and when do you verify workers? Identity, eligibility and safety readiness should be confirmed before the floor, the way Trimax Verify does, not after an incident.
• Are timesheets and payroll digital? Manual systems create disputes and compliance risk across a shift-based crew.
• Can you cover food-grade or GMP roles? If you run regulated production, confirm the agency screens for it.
• Do you charge workers a fee? In Ontario an agency cannot; if it does, walk away. See the signs a staffing agency is legit.

The Bottom Line

With about 85% of manufacturers unable to recruit enough workers, the right staffing agency is the one that keeps your line running, not just the biggest name on the list. Go national with Randstad, Adecco or Manpower for multi-site volume; go regional or specialist with Liberty, GHRC, Aerotek or Staff Plus for local depth or packaging speed; and consider a verified, digitally managed partner like Trimax when no-shows, unverified workers or payroll disputes have cost you uptime. Score each against shift coverage, verification, retention, clean admin and flexibility, ask the five questions above, and you will keep production moving. For the adjacent market, see the top warehouse staffing agencies, and for the automation angle, whether robots will replace warehouse workers.

Ready to keep your line staffed? Trimax places verified manufacturing and light-industrial workers across Canada. Employers can get in touch, and workers can join the talent pool.

Frequently Asked Questions

Which staffing agency is best for food and beverage packaging?

For high-speed packaging crews, a specialist that staffs exactly that work is often the best fit; GHRC Staffing Solutions, for example, is known for packaging crews for food, beverage and consumer-goods producers. National firms like Randstad, Adecco and Manpower can also staff packaging lines at volume. If your production is food-grade or GMP-regulated, confirm the agency verifies workers for those requirements before they reach the floor, the way Trimax Verify does.

How fast can an agency staff a production line?

A partner that keeps a pre-screened pool can often place workers within days, much faster than a cold direct hire in a market with 506,700 job vacancies. Speed only helps if the workers are verified and shift-ready, so ask about fill rate and no-show cover. The key is booking ahead of a ramp or seasonal surge so the agency has time to match verified people to your shifts.

Can staffing agencies provide food-grade or GMP-ready workers?

Reputable agencies can, but you must confirm it. Ask exactly how the agency screens for food-grade and GMP requirements, WHMIS and any site-specific safety training, and whether that check happens before the worker arrives. Verification before the floor, not after, is the single most important thing to confirm for regulated production. Trimax confirms identity, eligibility and documents through Trimax Verify before assignment.

Do manufacturing staffing agencies charge workers a fee?

No reputable agency charges a worker to find them work, and in Ontario it is illegal for a temporary help agency to charge a worker a fee. The employer pays the agency. If an agency asks a worker for money to get placed, treat it as a red flag; see the signs a staffing agency is legit for what to watch for.

Should I use a national agency or a local manufacturing specialist?

Use a national firm like Randstad, Adecco or Manpower when you need volume across multiple sites or a large ramp. Use a regional or niche specialist like Liberty, GHRC or Staff Plus for local depth, packaging speed or a single plant, and consider a verified, digitally managed agency like Trimax when reliability and clean admin matter most. Many manufacturers use more than one. Our guide to using an agency versus hiring in-house covers the trade-offs.