Staged Bid Evaluation

Staged bid evaluation is an evaluation process in which bids or proposals are assessed in successive stages. A bid can be eliminated at one stage before later-stage evaluation takes place, so only the bids that pass an earlier stage move on to the next one.

The approach structures evaluation as a sequence rather than a single scoring exercise. A common sequence runs from administrative compliance, to technical compliance, to final price or best-value scoring. NATO's competitive procurement procedure expressly contemplates evaluation occurring in "successive stages", which makes it a recognised way to organise a competitive evaluation. The procedure is published on the NATO website.

What NATO's procurement procedure requires

NATO requires its procurement authorities to develop and follow formal procedures for evaluating bids and proposals. Those procedures must be objective and non-discriminatory. The solicitation must also specify the methodology and criteria that will be used to evaluate bids or proposals, and it must state whether evaluation will occur in successive stages. All of this is set out in the NATO procurement procedure.

NATO also states that bids are evaluated case by case by the relevant NATO procuring body, as described on its procurement opportunities page. The evaluation method is therefore set for each solicitation rather than applied as one fixed template across every purchase.

A three-stage example from the NATO Joint Warfare Centre

A 2026 NATO Joint Warfare Centre procurement presentation shows how the stages work in practice. It describes three sequential evaluation stages:

• Administrative check: the first gate a bid must clear.
• Technical compliance: the second gate, applied to bids that passed the first.
• Final scoring: best-value scoring based on technical and price components.

In this example a bid can be eliminated at each stage. The full presentation is available in the Joint Warfare Centre document.

How the stages filter bids

The order of the stages determines which bids are scored at all. A bid that fails the administrative check does not reach technical compliance. A bid that fails technical compliance does not reach final scoring. Only the bids that clear every earlier stage are scored on their technical and price components in the final stage.

This differs from an evaluation where every bid is scored on every criterion at once. In a staged evaluation, an early elimination ends a bid's participation regardless of how strong the remainder of the submission might have been.

What staged evaluation means for a Canadian supplier

The solicitation is the authority on how a bid will be evaluated. Suppliers bidding on NATO opportunities, and on any other public solicitation, should read the evaluation section first and check whether it states that evaluation occurs in successive stages. Note the criteria attached to each stage and the order in which they apply.

Where stages are used, treat the early stages as gates that decide whether the rest of the bid is ever read. Build the response plan and the final review around the stated criteria for each stage, and confirm compliance with each one before submission. Each solicitation sets its own methodology, so the stated method for that specific opportunity governs how the bid will be assessed.