NDAs with buyers suppliers and contractors

This is a really important practical question, and the answer depends on the context, what information you are sharing, and how sensitive it is.

General position:

There is no blanket legal requirement to have a non-disclosure agreement in place before speaking to buyers, suppliers, or contractors. However, whether you should use one depends on what you are disclosing and the risk of that information being misused.

When an NDA is strongly advisable:

1. You are sharing trade secrets, proprietary processes, formulas, or technical know-how.
2. You are disclosing business plans, financial information, pricing strategies, or customer lists that give you a competitive edge.
3. You are entering early-stage discussions about a potential deal, joint venture, or acquisition where sensitive commercial information will be exchanged.
4. You are sharing product designs, prototypes, or innovations that are not yet protected by patent, registered design, or other intellectual property rights.
5. You are engaging contractors or freelancers who will have access to confidential systems, data, or processes.
6. You are disclosing personal data or information subject to regulatory obligations, for example under the UK GDPR or Data Protection Act 2018.

When an NDA may be less critical:

Where the conversation is about publicly available information, standard pricing, or general terms of engagement, an NDA is usually unnecessary and may slow down commercial discussions or put off the other party.

What the law provides without an NDA:

English law does recognise an equitable duty of confidence. If information is shared in circumstances where the recipient knows, or ought to know, it is confidential, the discloser may have a claim for breach of confidence even without a written NDA. However, relying on this is risky because it is harder to prove, the scope of the obligation is uncertain, and remedies may be more difficult to obtain. A well-drafted NDA gives you clarity, certainty, and a much stronger enforcement position.

Key points to get right in an NDA:

1. Define the confidential information clearly. Vague or overly broad definitions can make the agreement unenforceable or cause disputes.
2. Specify the permitted purpose for which the information can be used.
3. Set out who the recipient can share the information with, for example their employees, advisers, or sub-contractors, and on what terms.
4. Include a clear duration, both for the obligation of confidentiality and the period during which information may be disclosed.
5. Address what happens to the information when the relationship ends, for example return or destruction of materials.
6. Consider whether the NDA should be mutual or one-way. In supplier or contractor relationships, the obligations are often one-way. In buyer discussions or joint ventures, mutual NDAs are more common.
7. Include remedies, particularly the right to seek injunctive relief, since damages alone may not be adequate if confidential information is leaked.

Practical considerations:

Some parties, particularly large buyers or established suppliers, may resist signing NDAs or insist on using their own template. In those situations, it is worth reading their version carefully to make sure it does not contain carve-outs that hollow out the protection you need.

For contractors and freelancers, confidentiality obligations are often built into the services agreement or consultancy agreement rather than being a standalone NDA. That is perfectly fine as long as the clauses are properly drafted.

If you are sharing information with multiple parties, for example during a competitive tender or sale process, a standard form NDA helps ensure consistency and reduces the risk of one party having weaker obligations than another.

Summary:

You do not legally need an NDA in every conversation, but in practice you should use one whenever you are disclosing information that would cause you real commercial harm if it were leaked, misused, or passed to a competitor. The cost and effort of putting a good NDA in place is small compared to the damage that can result from unprotected disclosure. It is one of the simplest and most effective risk management tools available.