This is the deliberate twin of our recruitment map, this time narrowed to one slice. Where recruitment as a whole is six business models wearing one label, temporary staffing is mostly one model wearing different clothes. It is the high-volume, thin-margin, capital-hungry half of the industry, and it has to be read on its own terms.
About 300 UK temporary-staffing companies publish a full profit-and-loss; after removing nine corporate captives (own-staff payroll vehicles, not agencies), the genuine-operator basis is 290. Figures are approximate — verify any single number against a company’s own accounts before relying on it.
The one caveat that changes every number: margin is not margin
A temp agency’s “turnover” is mostly contractor pay passed straight through. The agency books the worker’s full pay rate as revenue and remits most of it as cost, keeping a thin mark-up. So the 0.9% median margin across genuine operators here is normal and healthy — the signature of pass-through staffing, not distress. Do not compare it to a search firm’s 15–45%, where the firm books only its fee.
The corollary matters more than the margin itself: temp staffing is working-capital intensive — it pays contractors weekly while invoicing clients in 60 days. So scale here is a balance-sheet game, not a fee game, and that single fact explains the shape of everything below.
The shape of the market
Profitability rises with scale — to 82% in the £100M–1bn band — then collapses to 40% at £1bn+, because the very top is dominated by loss-making mega-platforms. The healthy core is £25–100M (75% profitable): big enough to fund contractor payroll, small enough to stay specialist. The sub-£1M tier is a graveyard of one-desk agencies and shells.
The giants — and the platform losses
The cycle reads straight off the largest balance sheets. The deeply loss-making names at the top are the gig and roll-up platforms; the quietly profitable giants are the umbrellas and the public staff bank — infrastructure, not agencies chasing placements.
| Company | What it is | Turnover | PBT | Turnover YoY | Staff YoY |
|---|---|---|---|---|---|
| Headfirst Global PLC | listed merger platform | £2.60bn | −£124.1M | +120% | +680% |
| PayStream My Max | umbrella — contractor PAYE | £2.48bn | £12.9M | −2% | −6% |
| Impellam Group | MSP + specialist staffing | £1.85bn | −£21.1M | −11% | −20% |
| Hays Specialist Recruitment | Hays plc UK arm | £1.39bn | −£2.4M | −2% | −15% |
| NHS Professionals | NHS in-house staff bank | £1.20bn | £11.4M | −0% | +10% |
| Robert Walters PLC | listed professional recruiter (global group) | £892M | £0.5M | −16% | −15% |
| PayStream My Max 3 | umbrella — PAYE | £755M | £4.1M | +3% | +1% |
| Guidant Global UK | MSP / RPO | £711M | £3.3M | −9% | −12% |
| Adecco UK | global staffing UK arm | £585M | −£11.0M | +3% | −16% |
Read the staff column alongside revenue: Adecco grew turnover +3% while cutting headcount −16%, and Hays held revenue roughly flat while cutting −15% — both restructuring hard in a way the turnover line alone hides. Impellam is shrinking on both (−11% / −20%) — pure contraction. The two firms adding people are structural, not cyclical: NHS Professionals (+10%), absorbing workers into the public bank, and the merger-distorted Headfirst.
Growth, read with care
At the extreme, growth is acquisition (Headfirst’s merger, on a £124M loss) or revenue bought at a loss (Ingeus, +54% and loss-making). The honest organic signal is energy — Select Offshore (+51%) and NES (+44%) ride the same offshore-wind and North Sea activity lighting up the search market. The scatter below plots every genuine operator; the dense band near 0% margin is the pass-through model, exactly as designed.
One model, but the spread is in who you employ
The defining structural feature is that this market is overwhelmingly a single business model — contract/temp staffing (257 of 290 firms) — with a thin edge of umbrella/payroll and RPO/MSP. That homogeneity is the point: where executive search mixed six models, this is one. But the margin spread between them tells the strategy.
The genuinely high-margin operators are almost all vertical specialists: education supply (Tradewind £88M / £8.9M, Protocol, Timeplan, Sanza — a reliable local-authority buyer and structurally elevated post-COVID demand), healthcare (Direct Healthcare 24, 18% margin), driving (Driver Hire’s franchise model, 42.5%), and energy/technical (Chevron). Generalist blue-collar contract is the grind. (A caution: NES Global’s 78% “margin” is a management-company / intercompany-fee artifact, not staffing economics — treat any search-firm margin in a pass-through market with suspicion.)
More concentrated than search
The 290 genuine operators book about £30.5bn of combined turnover, and the market is meaningfully more top-heavy than executive search (where the top 5 hold just 17%). The reason is structural: temp staffing rewards scale and balance sheet — you need capital to float contractor payroll — so it consolidates toward big platforms and umbrellas, while search fragments on reputation and specialism.
Vintage
The largest cohort is the 2000s — GFC survivors now at £20–100M. There is no visible post-pandemic wave of new-format temp businesses at material scale; the 2021+ cohort exists but is small. As in search, vintage is not a moat; vertical positioning and balance-sheet discipline are.
Bottom line
- Temp staffing is a balance-sheet business. The 0.9% median margin is the model working as designed; capital to float payroll is the real moat, which is why it consolidates.
- It is more concentrated than search (top 5 at 31%) and top-heavy with umbrellas, a merger-built platform and a public staff bank — all on different economics.
- Specialism still wins. Education supply, driving, healthcare and energy/technical are where the ≥10% margins and the growth both sit. Generalist blue-collar contract is the grind.
- Watch the umbrella and staff-bank tiers separately. PayStream-style PAYE intermediaries are quietly the most profitable thing here and IR35-policy-dependent; the NHS Professionals in-house-bank model — a dominant buyer building its own bank to undercut agency margin — is the most replicable disruption idea here (police, social care and schools could each support one).
Methodology and caveats
This covers only the UK temporary-staffing companies that publish a full profit-and-loss (most are too small to report figures); nine captives are stripped from the competitive read; a few intercompany-fee structures inflate margins and are excluded from the ranked tables and charts. Figures are approximate; this is analysis, not financial advice. Verify any specific figure against the company’s own accounts before relying on it.