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30 OCTOBER 2026 · DEFINITION · TOR TENNVASSÅS

Procurement collaboration or GPO: what is the difference?

Both promise better prices through combined volume. The difference lies in who negotiates, who owns the agreement and who earns from it. This decides what a company is actually left with.

Two models with the same promise

A traditional group purchasing organisation (GPO), or purchasing central, negotiates agreements in advance and offers them to customers in return for membership. The customer chooses from a catalogue of ready-made agreements. A procurement collaboration is a different model: the members put their own volume on the table first, and the agreements are negotiated on that specific volume, category by category. Both are forms of group purchasing. The procurement collaboration is what the literature calls collaborative purchasing: the buyers themselves pool their volume and commit to the outcome.

Seven differences

GPOProcurement collaboration
Who negotiatesThe GPO, before the customer joinsThe collaboration, on behalf of the members and on their own volume
What the price is based onA discount on the supplier’s list priceA price per article on what the members actually buy
Who the agreement applies toAll customers, regardless of volume and needsThe members who contributed the volume
Revenue modelRevenue from the supplier, often a share of turnover, usually not disclosed to the customerAn open and transparent fee under the agreement with the members
ComplianceVoluntary; the customer can buy anywhereBinding within the agreed categories
DataThe GPO owns the transaction dataThe member owns its own data
What happens over timeThe agreement stays fixed until the next negotiationEach round starts with more volume and better facts
Seven differences between a GPO and a procurement collaboration.

Why the revenue model decides

A procurement collaboration can be funded in several ways, including a share of the rebates from the suppliers. What matters is whether the fee is agreed openly with the members and visible to them. When the revenue comes from the supplier without the customer’s knowledge, the operator has an interest in high turnover through the agreement, and nobody checks whether the price per article is low. When the fee is agreed openly, the members can judge for themselves whether it is proportionate to the gain, and high agreement compliance benefits both the members and the collaboration. The question is what the model rewards, and whether the members can see it.

When a GPO is the right choice

For a small company with scattered purchases and no procurement function, a GPO gives quick access to better terms than it could obtain alone. The threshold is low, the commitment is small, and that is valuable in itself. The cost is that the company does not know how much of the discount is real, and that it cannot influence the agreement.

When a procurement collaboration is the right choice

For a mid-to-large company with significant procurement volume, the question is different: how much of the volume is tendered at article level, and what share of purchases actually goes through the agreement? A collaboration requires the company to commit and to take part in the tenders. In return it gets prices negotiated on its own volume, and figures it can verify itself.

The questions to ask

Whatever the model, a company should ask the provider three questions. Who pays you? Who owns the data about my purchases? And can I see the price per article, not just the discount?

Aitenda

Aitenda is a procurement collaboration. The fee is agreed openly with the members and scales with volume. Agreements are negotiated at article level on the members’ combined volume, and every member owns its own transaction data.

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