tender evaluation

Tender evaluation is the process where a contracting authority assesses and ranks submitted bids to identify the best supplier in a public procurement procedure. It begins once the submission deadline has passed and concludes with an award decision.

How does tender evaluation work?

The evaluation follows a structured sequence. First, the contracting authority verifies that suppliers meet the qualification requirements. Those who do not qualify are excluded. The remaining bids are then assessed in two stages:

1. Compliance check — Each bid is checked against the mandatory requirements in the procurement documents. Bids with material deviations must be rejected.
2. Scoring against award criteria — Compliant bids are ranked according to the published award criteria and their weighting. The authority selects the most economically advantageous tender.

Under EU Directive 2014/24/EU (Article 67), contracts must be awarded on the basis of the most economically advantageous tender. The Directive does not prescribe a specific evaluation model — authorities choose their methodology freely, provided it is disclosed in the tender documents and applied consistently.

Evaluation models in practice

The two most common approaches are:

• Scoring model — Price and quality criteria are converted into points. The bid with the highest total score wins. Models can be absolute (fixed benchmarks) or relative (best bid sets the scale).
• Pricing of quality — Quality differences are assigned a monetary value that adjusts the bid price, producing an "evaluated price" where the lowest wins.

A common pitfall is that evaluators fail to use the full scoring range when assessing quality. This compresses quality scores and gives price disproportionate influence — undermining the intended balance between cost and quality. Tools like Cobrief can help suppliers understand how a competition's evaluation is structured, enabling better-targeted bids.

Tender evaluation is the core of every tender procedure — it determines who wins the contract. A transparent evaluation process ensures the best bid prevails and that all tenderers are treated equally.