Managing Multiple Staffing Agencies? Here's What It's Actually Costing You

You work with multiple staffing agencies. That sounds smart: more choice, more coverage, someone always available. But anyone who knows the day-to-day reality understands what's hiding behind that approach. Separate contacts, separate systems, separate invoices. And every time you need staff, the same ritual starts all over again.

The real cost of fragmented flex management rarely shows up on a single invoice. It lives in the hours your planner loses, in the errors that come from miscommunication, and in the energy that drains away while you're trying to focus on your core business.

In this article, we break down what working with multiple separate agencies actually costs you, and what the alternative looks like.

1. Time you never get back

Every request you send to multiple agencies costs time. You call or email agency A, wait for a response, call agency B when A doesn't reply, compare the candidates you get back, confirm with one and cancel the other. That takes an average of 30 to 60 minutes per request, often more.

Add the admin on top: checking invoices, approving hours, tracking contracts. For a mid-sized client that regularly uses flex workers, those hours add up fast.

Those are hours your planner isn't spending on building solid staffing, maintaining quality, or solving genuinely urgent problems.

2. You have no overview, just separate pieces

Working with multiple agencies means working with multiple versions of the truth. Agency A says candidate X is available. Agency B already offered that same person to someone else. Nobody knows how many hours have been logged this week. The invoice is wrong, but figuring out why costs another hour.

As a manager or director, you want to know where your staffing stands. How many flex workers are scheduled? What are they costing? Who's performing well and who isn't? With separate agencies, that's nearly impossible to map out. You have no single source of truth, just fragmented information you have to piece together yourself.

That makes steering on cost, quality and compliance far harder than it should be.

3. The hidden costs that never appear on an invoice

The fragmentation of the flex market has essentially forced companies to work with multiple agencies. Not because they want to, but because no single agency can cover the full demand.

And that's where the problems stack up. Every agency has its own rate structures, its own surcharges, its own agreements. There's no neutral platform where you can compare them fairly, and you have no visibility into who delivers the best quality, who fills shifts fastest, or who has the lowest no-show rate. Agencies without that transparency have little incentive to send their best people. You're operating on gut feeling, not data.

Then there are the no-shows, the wrong matches, the last-minute reshuffles. Every time a scheduled worker doesn't show up, someone has to scramble for a solution. That costs money too, it just doesn't appear on any invoice.

4. Compliance becomes a nightmare when no one has the full picture

Flex work comes with a growing body of legislation. In the Netherlands, the Wtta comes into force on 1 January 2027. From that point, you may only work with agencies that are officially certified and listed in a public register. The responsibility to check sits with you. Work with an uncertified agency anyway? You risk fines.

If you're working with multiple agencies, you need to track certification, verify contracts and confirm correct wage payments for every single one of them. It's a risk most clients underestimate, until something goes wrong.

What's the alternative?

The obvious response is: just pick one agency. But that only solves part of the problem. You become dependent on the capacity and network of one player, which limits reach and choice.

The smarter solution is a workforce marketplace: one platform where multiple agencies work together, but you manage everything from a single place. One request, reach across all connected agencies. One dashboard with real-time insight. One invoice per period. All compliance built into the system.

That way you keep the advantages of multiple agencies: reach, competition, choice, without the downsides of fragmented management.

Conclusion

The real cost of multiple separate agencies is rarely found in one place. It's in your team's time, in the lack of overview, in costs that never appear on any invoice, and in compliance risks you may still be underestimating.

The question isn't whether you work with one agency or many. The question is whether you manage it as one system or as a collection of loose puzzle pieces.

Felix is that one system. One request. All agencies. One invoice. Request a free demo and see how it works.