International Competitive Bidding (ICB)

International Competitive Bidding (ICB) is the open, internationally advertised procurement method that multilateral development banks and their borrowers use for their largest contracts, designed to attract qualified bidders from anywhere in the world and secure value for money.

What is International Competitive Bidding?

ICB is the default method for high-value goods, works, and plant contracts financed by institutions such as the World Bank, the Asian Development Bank, and the African Development Bank. The contract is advertised internationally, typically through a General Procurement Notice and a Specific Procurement Notice, and any eligible firm from a member country may bid. Bidding documents are standardised, the evaluation criteria are published in advance, and award generally goes to the lowest evaluated substantially responsive bidder that is qualified. Large or complex ICB contracts often run a prequalification stage first, and bidders usually post a bid-security to deter frivolous offers.

ICB contrasts with ncb, National Competitive Bidding, which advertises domestically for smaller contracts where international interest is unlikely. Where ICB buys goods and works, an ifb, Invitation for Bids, is the document that opens the competition.

Why ICB matters for bidders

ICB is where the largest internationally financed contracts are won, so for an exporter or international contractor it is the main arena worth mastering. The method rewards firms that can navigate standardised bidding documents precisely, because award turns on being substantially responsive and lowest evaluated, and a single material deviation can render a low bid non-responsive. Bidders that win consistently invest in reading the General and Specific Procurement Notices early, qualifying ahead of time, and pricing against the evaluated-cost rules rather than headline price alone. Because every ICB is internationally advertised, the opportunities are visible to those who monitor the bank notice boards systematically.

FAQ

When is ICB used instead of National Competitive Bidding?

ICB is used for high-value contracts likely to attract international suppliers, while NCB is used for smaller contracts where only domestic firms are expected to compete.

Who can bid on an ICB contract?

Any eligible firm from a member country of the financing institution may bid, subject to the qualification criteria set out in the bidding documents.

How is the winner of an ICB chosen?

Award generally goes to the lowest evaluated, substantially responsive bid from a qualified bidder, using the evaluation criteria published in the bidding documents.