What is a consortium bid?

A consortium bid works by pooling: the buyer assesses the group as one bidder, so a requirement one member cannot meet alone, such as a service line, a reference or a level of capacity, can be met by another member where the tender documents allow it. In supplier-side tendering, the term applies to public and private contracts alike, wherever the documents accept a group as the bidder.

The term stops where one company carries the bid alone. A prime contractor bidding with subcontractors behind it is not making a consortium bid. Neither is a joint venture company bidding in its own name, or a bidder that relies on another company's capacity without that company joining the bid. A long-term alliance between companies may produce consortium bids, but the term itself describes one response to one tender.

How a consortium bid works

Consortium bids are single responses in which the members bid as one, because no single member meets every condition the buyer sets, and one lead member speaks for the group. Consortium bidding rests on three things: a reason to bid together, an agreement between the members, and one response, with one evidence set and one sign-off, across several companies.

Why companies bid as a group

The reason usually lies in the conditions of participation or the scope. The tender asks for a capability, a capacity or a track record that no single member holds, and the group holds it between them.

Welsh Government guidance on the Procurement Act 2023 lists bidding together, for example as a consortium, as one of three relationships through which a supplier relies on another to meet the conditions of participation. The other two are sub-contracting and guarantees. Its worked example has a soft services supplier and a hard services supplier that can either form a consortium or have one subcontract to the other.

The guidance is written for contracting authorities in Wales. It shows how buyers there read a group of suppliers, and places no duty on the bidder.

The consortium agreement

A bidding consortium is held together by a consortium or teaming agreement between its members, not by any contract with the buyer. The agreement settles who delivers which part of the contract, who carries which risk and how the price is built from each member's costs. It also names the lead member and gives it the authority to submit and to deal with the buyer for the group.

The agreement governs the members' relationship with each other. What each member owes the buyer is set by the tender documents and, after award, by the contract.

One response from several companies

The buyer scores one response, so it has to read as the work of one bidder. Writers at each member bring their own house style, terminology and formatting, and the lead member's bid team sets one style, one set of terms and one structure for all of them. Assigning section owners and deadlines across the members at the bid kick-off meeting is where that starts.

Evidence follows the same rule. Each member's case studies, certificates and policies sit in its own library and were written for its own bids. Each piece has to meet one standard and answer the question it is cited against, and each member decides which of its own material may go to the buyer.

Sign-off spans companies too. Each member approves the commitments made in its name, such as scope, staff and price, before the lead member's bid manager gives final sign-off and the lead submits.

Where a consortium bid sits in the tender process

In a consortium bid, the decision to partner belongs in bid/no-bid, and the members settle their agreement before anyone drafts. In Wales, the partners are then named publicly at award. This adds steps to the wider tender management work at both ends of the response.

Before the response: deciding to partner

Bidding alone, bidding with partners or not bidding at all are options in a single go/no-go decision. A gap the team cannot fill alone is a reason to look for a partner, and the lack of a suitable partner can be a reason not to bid.

The agreement comes before drafting because the delivery split and the price build decide what the writers can say. In the tender process, a consortium therefore adds a stage between the decision to bid and the start of writing.

After award: what becomes public

The Welsh Government guidance says that a contracting authority awarding a contract to a supplier that relied on other suppliers to meet the conditions of participation must publish their details in the contract award notice. Guarantors are the exception.

A consortium's partners are therefore named publicly once the contract is awarded in Wales. A partnership kept confidential during the bid does not stay confidential after award.

What Directive 2014/24/EU allows for groups of bidders

In procedures run in EU member states, Directive 2014/24/EU lets groups bid without a set legal form. It lets the buyer require a legal form after award where the contract needs one, and it lets the buyer state how a group meets the selection requirements.

No set legal form to bid

Directive 2014/24/EU allows groups of economic operators, including temporary associations, to take part. A contracting authority may not require a group to have a specific legal form to submit a bid. The members do not need to incorporate a company or register a partnership before bidding.

Article 19(3) sets the limit. Once a group has won, the buyer may require it to adopt a specific legal form where necessary for satisfactory performance of the contract. Tender documents that say so tell the members before they bid that a change of form may follow award.

Selection requirements met by the group

Recital 15 lets the buyer set out explicitly how a group meets the requirements on economic and financial standing and on technical and professional ability that apply to single bidders. The tender documents decide how the members' figures, references and qualifications count towards the group's evidence.

The ESPD is where that evidence is first declared. The lead member's bid team gathers each member's entries against the rules set out in the documents.

What research shows about consortium bids

Research on EU public works shows that contracts won by groups nearly always include an SME among the winners. It also shows that consortium membership raises an SME's chance of winning, though most SME wins remain solo.

Group awards in EU public works

A study by Nemec in Empirical Economics, published in 2024, analysed public works contract awards published on TED from 2018 to 2022. Of 7,002 contracts awarded to a group of economic operators, SMEs were among the winning members in 6,811. More than half of those were won by consortia made up only of SMEs.

The data cover public works only. They say nothing directly about services or supplies contracts.

Consortium membership and SME win chances

The same study found that bidding as a consortium member significantly raised SMEs' chances of winning public works contracts. The author reads this as a way for SMEs to overcome financial and administrative constraints when competing with large firms.

SMEs still won most of their contracts as sole winners (77%), with the rest won as consortium members. The data do not capture sub-contracting, so SMEs working under a prime contractor do not appear in either figure.

How a consortium bid differs from related arrangements

In each of the three related arrangements, one company bids alone. In subcontracting, a prime contractor holds the contract and pays its subcontractor. A joint venture company is a legal entity bidding in its own name. Reliance borrows another company's capacity without that company bidding. In England, Wales and Northern Ireland, the Procurement Act 2023 treats bidding together and subcontracting as separate routes.

Subcontracting under a prime contractor

A prime contractor bids alone, signs the contract and pays its subcontractors. The subcontractor has no contract with the buyer, is not part of the bidder, and the prime remains responsible for the whole contract.

In England, Wales and Northern Ireland, section 22 of the Procurement Act 2023, in force since 24 February 2025, treats a supplier as meeting a condition of participation to the extent that an associated supplier meets it. Suppliers are associated when they submit a bid together. A separate route covers a supplier that will sub-contract all or part of the contract to the other, or that the other will guarantee. That route counts only where the authority is satisfied the suppliers will enter legally binding arrangements.

A consortium partner therefore counts through the joint submission itself. A subcontractor counts only once the authority is satisfied the arrangement will bind.

A joint venture company

A joint venture company is a separate legal entity, owned by its parent companies, that bids, contracts and is assessed as a single supplier in its own name. A consortium has no entity of its own at bid stage: its members remain separate companies bidding as one.

A consortium can still need a legal form of its own after award, where the buyer requires one for performance under the Article 19(3) rule above.

Relying on another company's capacity

Reliance means a bidder uses another company's capacity, such as financial standing or experience, to meet selection requirements, without that company joining the bid. Article 63 of the directive lets a group in EU procedures rely on the capacities of its own members or of other entities, on the same conditions as a single bidder. A consortium can therefore rely on a company outside it.