Generally, only a party to a contract can enforce that contract. However, this rule is subject to a number of exceptions, and the terms of the contract itself. Under the Contracts (Privity) Act 1982, if the contract contains a promise for the benefit of the subsidiaries, and the subsidiaries are sufficiently identified, a subsidiary will be able to enforce the contract as if they were a party to it (unless it can be shown that the promise was not intended to be enforceable by the subsidiary). The easiest way to ensure a contract is enforceable by a subsidiary is to insert a clear, unambiguous contracts privity clause into it before it is signed.