Some of the largest procurement in the world runs through multilateral development banks and United Nations agencies— institutions such as the World Bank, the Inter-American Development Bank (IDB), the European Bank for Reconstruction and Development (EBRD), the Islamic Development Bank (IsDB), and dozens of UN organisations. They finance infrastructure, health, education, and technical work across the globe, and much of that money is spent through open, competitive tenders. This guide explains how that procurement is organised and where you actually bid.

The single most important thing to understand before you spend any time here is that each institution buys on two very different tracks. Confusing them is the most common reason first-time bidders chase the wrong opportunity.

The two tracks: corporate vs. operational procurement

Corporate (or “institutional”) procurement is the bank or agency buying goods and services for itself— the IT systems, consultants, facilities, and professional services it needs to run its own offices. These contracts are managed directly by the institution’s own procurement department, and you respond to the institution.

Operational (or “project”) procurement is far larger and works differently. When a development bank funds a project, it lends the money to a borrower— a national government, ministry, or implementing agency — and that borrower runs the procurement to build the road, hospital, or power plant. The bank does not sign your contract; the borrower does. What the bank provides is the procurement framework: the rules, the standard bidding documents, and oversight to keep the process fair. So when you win project work, your client is the borrower country or agency, operating under (say) the World Bank’s procurement regulations.

Before you invest in a bid, read the notice to determine which track it is on. A tender that is bank-executed is answered to the institution; a tender that is borrower-executedis answered to the government agency named in the notice, even though you found it on the bank’s website. The eligibility rules, contact point, and submission address all follow from that distinction.

Where the opportunities are advertised

Project opportunities are published in several overlapping places. Each bank posts its own project procurement notices — general procurement notices, specific procurement notices, and requests for expressions of interest for consulting assignments — on its operations or projects website. Aggregators such as United Nations Development Business and dgMarket have historically collected these notices across institutions in one place. UN agency procurement is consolidated on the United Nations Global Marketplace (UNGM). Because the same project can appear in more than one feed, treat the bank’s or agency’s official notice as the source of truth for dates and instructions.

Eligibility and the rules of the game

Development-bank procurement carries eligibility rules you will not see in domestic bidding. Contracts are usually open to firms from member countries, and some financing restricts eligibility further. Firms and individuals that have been sanctioned or debarred— for fraud or corruption on past projects — are excluded, and the banks cross-recognise each other’s debarments. Anti-corruption and conflict-of-interest rules are strict and strictly enforced. Read the eligibility section of every notice before you commit; a technically strong bid from an ineligible firm is simply discarded.

Registering: UNGM for UN agencies

For the UN track, the practical first step is to register on UNGM, which is free. A single UNGM registration creates a supplier profile that many UN agencies draw on, and you can subscribe to tender alerts by category using the UNSPSC classification. Some agencies and higher-value tenders ask for an additional, more detailed registration level, but basic registration and alerts cost nothing. For the development banks, registration works per institution — there is no single supplier login across all of them — so create an account on each bank’s system when you find live opportunities there.

Preparing and submitting your bid

Whichever track you are on, the discipline is the same as any major public tender: use the standard bidding document or request for proposal exactly as issued, answer every requirement in the order asked, and submit through the method the notice specifies before the deadline. Consulting assignments often run in two stages — a request for expressions of interest to shortlist firms, then a full request for proposals to the shortlist — so responding early to the EOI is how you get invited to bid at all. Our guide on how to read an RFP applies directly to these documents.

The bottom line

Winning development-bank work starts with one question on every notice: is this the institution buying for itself, or a borrower government buying under the bank’s rules? Answer that, check you are eligible, register free on UNGM for the UN track, and respond to expressions of interest early. Because most of this work is delivered inside a specific country, it pairs naturally with international open-contracting portals and national systems like the EU’s TED and AusTender. For the universal mechanics of any bid portal, see the government-portal playbook, and browse open opportunities to see what is live now.