Staffing Service Mix

Why this comes up

An agency running temp/contract, temp-to-hire, and direct-hire together doesn't have one margin, it has a blend of very different economics rolled into one P&L. Deciding whether to lean harder into one service line, or how a proposed shift would change the whole agency's numbers, needs the full portfolio laid out side by side, not just an instinct about which line "feels" more profitable. This engine also lets you model an alternative mix independently, so you can see what shifting the balance would actually do before committing to it.

How we calculated this

Blended Margin = sum of Economic Contribution / sum of Billings, across all models
Recurring Revenue Share = sum of billings from recurring models / total billings
An alternative mix is computed the same way, independently, not as a delta from the current mix

Worked example, using the calculator's own defaults: Temp/Contract at $800,000 billings and $160,000 economic contribution (recurring), Temp-to-Hire at $150,000 billings and $40,000 economic contribution (recurring), Direct Hire at $120,000 billings and $96,000 economic contribution (not recurring).

Total billings = 800,000 + 150,000 + 120,000 = $1,070,000
Total economic contribution = 160,000 + 40,000 + 96,000 = $296,000
Blended margin = 296,000 / 1,070,000 = 27.7%
Recurring revenue share = (800,000 + 150,000) / 1,070,000 = 88.8%

Direct Hire's individual contribution margin (96,000 / 120,000 = 80%) is far above the 27.7% blended figure, but it's only 11.2% of total billings, so the portfolio's overall margin and recurring share are driven almost entirely by the Temp/Contract and Temp-to-Hire lines.

What this means

• Blended margin is what the P&L actually sees; a small, high-margin service line can post an impressive individual number without moving the blended figure much if it's a small share of total billings.
• Recurring revenue share is a separate axis from margin entirely, a mix can raise its blended margin by leaning into direct hire while simultaneously lowering its recurring share, that tradeoff is worth seeing explicitly rather than optimizing margin alone.
• The alternative-mix comparison is independently computed, not a delta calculation, so you can model a completely different portfolio shape (not just a small shift from today) and see its numbers on the same basis.

Limitations

Scenarios are independently computed alternative mixes, not predictions; shifting your actual mix has execution risk (sales cycle, recruiter capability, client demand) this engine doesn't model. It also treats each service model's billings and contribution as static inputs, it doesn't project how a mix shift might affect pricing power or margin within a given line as its volume changes.

Common mistakes

• Judging a service line's importance by its individual contribution margin alone, without weighing it by its share of total billings.
• Treating an alternative mix scenario as a forecast rather than a planning comparison, and skipping the execution-risk conversation before acting on it.
• Leaving cash requirement or recurring flags inconsistent between the current and alternative mix, which distorts the side-by-side comparison.

Frequently asked questions

How many service models can I compare?

As many as you track separately, temp, temp-to-hire, direct-hire, or any further breakdown by segment; add rows as needed under both the current and alternative mix.

Should the alternative mix be a small tweak or a bigger rethink?

Either; because it's computed independently rather than as a delta, it works equally well for a modest rebalance or a genuinely different target portfolio.

Why does recurring share matter alongside margin?

Recurring revenue is what next quarter's planning and cash flow can rely on; a mix shift that raises margin but cuts recurring share is trading stability for profitability, a real tradeoff worth seeing explicitly.

Next decision

• Feed your portfolio mix into a directional agency valuation
• Drill into a two-model comparison at the account level

Learn more

Staffing Gross Margin Benchmarks by Segment — how margin varies structurally by segment, and where to find real dated benchmark data.