Invitation to Bid (ITB), UN

An Invitation to Bid in the UN system is a formal solicitation issued for the competitive procurement of goods, works, or non-complex services above the USD 40,000 threshold, where the requirements can be fully specified in advance and evaluation is based on price after confirming technical compliance.

What is an Invitation to Bid (ITB) in the UN?

UN procurement is governed by the UN Procurement Manual and agency-specific regulations, which divide competitive solicitations primarily into the ITB and the request-for-proposal-rfp-un. The ITB applies when what the agency needs can be described precisely in technical specifications so that all compliant bids are evaluated on the same basis and the lowest compliant price wins. Typical ITB categories include vehicles, medical equipment, food commodities, construction materials, and infrastructure works where quantities and standards are fixed.

Bids under an ITB are submitted in sealed form or through a secure electronic system, opened publicly at a defined date and time, and evaluated first for technical compliance and then ranked by price. There is no scored technical evaluation as in an request-for-proposal-rfp-un; a bid either meets the specification or it does not. Agencies such as UNDP, UNICEF, and UNOPS publish ITBs through their own portals and through ungm, the central UN aggregator. Suppliers registered on UNGM against the relevant unspsc codes receive automated alerts when matching ITBs are posted.

Why ITBs matter for bidders

The ITB rewards a supplier's ability to match a specification exactly and price competitively, without the judgment calls involved in an RFP evaluation. Reading the technical specifications with absolute precision is the first discipline: a non-compliant bid is disqualified regardless of price. The second discipline is costing. Since the award goes to the lowest compliant bid, pricing strategy matters more than narrative quality, and understanding the agency's historical award prices, which UNICEF in particular publishes openly, can sharpen a firm's competitive positioning. Suppliers should also confirm their UNGM registration tier matches the contract value, since bidding on an ITB above USD 500,000 with only Basic registration can result in disqualification at the vendor verification stage.

FAQ

What is the minimum threshold for an ITB in the UN system?

The ITB method applies to procurements above USD 40,000. Below that threshold, agencies typically use an request-for-quotation-rfq-un, which is an informal quotation process requiring at least three quotes.

Is price always the only evaluation criterion in a UN ITB?

In principle, yes: ITBs award to the lowest price among technically compliant bids. Some agencies may apply a "best value for money" adjustment that accounts for life-cycle costs or quality differences, but the core ITB method is compliance-then-price, not a scored evaluation.

Where are UN ITBs published?

ITBs are published on individual agency portals (UNDP procurement notices, UNICEF In-Tend, UNOPS eSourcing) and aggregated on UNGM at ungm.org. Suppliers registered on UNGM with accurate UNSPSC codes receive email alerts for matching notices.