Aerospace & defence

NDA for UK Aerospace and Defence: Protecting Technical IP, Supply Chains and Programme Information

UK aerospace and defence businesses share highly sensitive technical data, programme information and supply chain terms before formal contracts are executed. This guide explains when an NDA is needed, what it must cover, and how dual-use technology and export control requirements interact with standard NDA provisions.

By Richard Wood, Founder8 min readUpdated 24 June 2026Last reviewed 24 June 2026NDAaerospacedefenceMOD

The UK aerospace and defence sector — worth over £35 billion in annual revenues, employing more than 120,000 people, and encompassing prime contractors, systems integrators, tier-1 and tier-2 suppliers, R&D organisations and independent engineering consultancies — operates with some of the most commercially and technically sensitive information flows in British industry. Programme specifications, proprietary engineering data, systems architectures and bid strategies are shared between businesses before formal contracts are executed, in teaming discussions, supply chain qualification processes and pre-procurement industry engagement. An NDA is the standard mechanism for protecting those pre-contractual disclosures — governing both what each party can use the information for and what happens to it if the commercial relationship does not proceed.

This is general information, not legal advice

NDASafe is a document preparation service, not a law firm. Our templates are legally reviewed against applicable UK law at the point of release, but every situation is different. Where significant value, unusual risk or a cross-border element is involved, take independent legal advice before you sign.

When UK aerospace and defence businesses need an NDA

An NDA is appropriate at the following stages in aerospace and defence relationships:

Supply chain qualification: before a prime contractor shares detailed programme requirements, technical specifications or production data with a prospective tier-2 or tier-3 supplier being evaluated for approved supplier status.
Teaming and partnering discussions: before two or more defence companies enter into teaming discussions for a joint bid, with each party sharing proprietary technical capabilities, pricing strategies and programme approaches.
Technology transfer and licensing: before a defence technology developer shares proprietary algorithm, sensor or platform data with a potential licensee, integration partner or joint venture party.
Pre-bid information exchange: before companies preparing a response to an MOD Invitation to Tender (ITT) or Request for Proposal (RFP) share technical approaches with subcontractors or specialist consultants who will contribute to the bid.
Early R&D collaboration: before research organisations, universities or independent test facilities receive technical data, prototype specifications or computational models in connection with a collaborative research programme.
Engineering consultancy engagements: before a systems integrator, test engineer, software developer or independent technical consultant receives proprietary design data or programme information to support a project proposal or evaluation.
Business development and capability presentations: before a defence company presents its technical capabilities, platform architectures or research pipeline to a prospective client, partner or government customer.

What an aerospace and defence NDA must cover

Aerospace and defence relationships involve sensitive information categories that a generic commercial NDA may not address adequately. A UK aerospace and defence NDA should include:

Technical data definition: the confidential information definition must expressly cover engineering drawings and CAD data, systems architecture and design specifications, software source code and algorithms, test data and modelling results, performance parameters and technical limitations, and prototype or pre-production design information.
Programme information: programme timelines, cost structures and budget information, bid strategies and pricing approaches, supply chain selections and sub-tier relationships, and government-furnished equipment specifications and programme requirements.
IP preservation: the NDA should state expressly that ownership of background IP remains with the disclosing party and that the NDA does not grant any licence to use the disclosed technical information other than for the stated evaluation purpose.
Export control acknowledgement: a provision acknowledging that the NDA does not override applicable export control restrictions and that neither party is authorised to disclose or receive export-controlled technology outside the terms of any applicable licence or authority.
Security obligations: obligations on each party to store and handle disclosed information in accordance with applicable security requirements and, where relevant, government security classification standards.
Return and destruction: requirements to return or securely destroy all disclosed technical data, drawings, models and programme information at the end of the evaluation period or on demand.

Dual-use technology and export control considerations

Aerospace and defence technology often falls into the category of dual-use goods — items with both civilian and military applications that are subject to export control restrictions under UK and, for technology of US origin, US law. These restrictions apply to the disclosure of certain technical data regardless of the commercial context:

UK Strategic Export Controls: the Export Control Order 2008 (as amended) and the UK Military List control the export and transfer of specified items and technology, including technical data related to those items. A transfer of controlled technology in a commercial negotiation — even under an NDA — may require an export licence.
US regulations affecting UK companies: US export control regulations, including the International Traffic in Arms Regulations (ITAR) and the Export Administration Regulations (EAR), apply to technology of US origin wherever it is located. UK companies working with US-origin defence technology may be subject to these regulations and must ensure any disclosure complies with applicable restrictions.
An NDA does not substitute for export control compliance: an NDA is a commercial confidentiality mechanism, not an export control authorisation. The receiving party cannot use a signed NDA as justification for receiving controlled technical data without the required licence or authority. Export control advice should be sought separately before sharing potentially controlled information.

Which NDASafe template to use

The right template depends on the structure of the aerospace or defence relationship:

Mutual NDA (£29): the standard choice for teaming discussions and joint venture negotiations where both parties are sharing proprietary technical capabilities, programme approaches or commercial strategies. Most pre-bid and partnering discussions in the defence sector involve mutual disclosure.
One-Way NDA, Disclosing (£29): where a prime contractor or technology developer is sharing programme requirements or technical specifications with a prospective supplier who is not reciprocally disclosing sensitive information of their own.
NDA with IP Assignment (£29): where an external technical consultant or specialist development contractor is being commissioned to develop IP for the client organisation, and ownership of the deliverables must vest in the client from creation. Appropriate for bespoke software, algorithm development or hardware design commissioned from external parties.
Freelancer NDA (£29): where an independent engineering consultant, systems integrator or technical adviser is engaged as a self-employed contractor, including the IR35 acknowledgement clause relevant to contractors operating outside an employment relationship.
Complete NDA Bundle (£79): all eight NDA variants. Suited to defence prime contractors and systems integrators managing a range of supplier, partner, consultant and investor relationships where different NDA structures are required.

UK aerospace and defence NDA templates — legally reviewed, instant download

NDASafe's NDA templates are editable Word documents appropriate for UK aerospace manufacturers, defence contractors, engineering consultancies and supply chain businesses. Single template £29. Complete bundle (all 8 variants) £79. Delivered instantly as an editable .docx file.

Step by step

1
Sign before sharing any technical specification, capability briefing or programme data
In aerospace and defence, the pre-contractual disclosure risk arises at multiple stages: when a prime contractor invites a prospective supplier to a capability briefing; when a defence technology company presents its sensor, propulsion or systems architecture to a potential integration partner; when a company preparing a bid for an MOD programme shares technical approaches with specialist subcontractors; and when early-stage R&D collaboration involves sharing prototype data, test results or computational models. At each stage, technically sensitive information is shared before a formal contract or teaming agreement is in place. The NDA must be signed before any substantive technical or commercial data is disclosed — including before any programme briefing, site visit or technical presentation where controlled or sensitive information may be shared.
2
Define confidential information to cover technical data, programme information and IP
An aerospace and defence NDA needs a definition that covers the full breadth of sensitive information that flows in sector relationships. The definition should expressly include: technical specifications, design data, engineering drawings and CAD files; systems architecture, algorithms, software source code and firmware; test data, performance data and modelling results; programme timelines, cost structures and procurement strategies; supply chain terms, pricing and logistics information; government-furnished equipment specifications and programme requirements; background IP, proprietary research data and unpublished technical know-how; and commercially sensitive bid information and contract strategy. Where both parties are disclosing sensitive information — as is common in teaming and joint venture arrangements — a mutual NDA is appropriate and the definition should be symmetrical.
3
Address export control limitations in the confidentiality framework
An NDA in an aerospace and defence context must acknowledge that its confidentiality obligations operate alongside — and cannot override — applicable export control restrictions. The NDA should include a provision stating that: nothing in the NDA authorises disclosure of information that is subject to export control licence requirements or UK Strategic Export Controls without the applicable licence or authority; each party is responsible for its own export control compliance obligations; and the NDA does not constitute a licence, permit or authority for the transfer of controlled technology. This acknowledgement clarifies that the receiving party cannot use the NDA as justification for receiving controlled technical data and alerts both parties to seek appropriate export control advice before sharing potentially controlled information.
4
Distinguish background IP, foreground IP and government-furnished information
Aerospace and defence programmes often involve three categories of information that need different treatment in the NDA. Background IP: existing IP owned by each party before the programme starts — the NDA protects this during pre-contract discussions. Foreground IP: new IP developed during the programme — the NDA's confidentiality obligations apply as it is generated, with ownership determined by the development contract. Government-furnished information: technical data and programme requirements provided by a government customer — the NDA should acknowledge that disclosure obligations arising from government-furnished information are governed by the government contract, not the NDA alone. An NDA that fails to distinguish these categories may create ambiguity about what each party can use and retain after the programme ends.
5
Choose the right NDASafe template for the aerospace or defence relationship
For pre-bid teaming discussions between two defence companies, each sharing technical capabilities and programme approaches, use the Mutual NDA. For a prime contractor sharing programme requirements with a prospective tier-2 supplier who is not sharing their own sensitive information in return, use the One-Way NDA, Disclosing. Where an engineering consultant or independent systems integrator is engaged as a self-employed contractor — receiving technical data for evaluation or project support without a formal employment relationship — use the Freelancer NDA, which includes the IR35 acknowledgement clause. For IP assignment situations, such as commissioning specialist technical development from an external consultant, use the NDA with IP Assignment to ensure ownership of deliverables is clear from the outset.

Frequently asked questions

Does a standard commercial NDA work for aerospace and defence relationships?

A standard commercial NDA provides the contractual foundation for confidentiality obligations in aerospace and defence relationships. However, the sector has specific requirements that a generic template may not address adequately: security classification obligations, export control restrictions on the disclosure of certain technical data, government-furnished information provisions, and the treatment of background versus foreground IP in R&D programmes. A UK NDA for aerospace and defence should include provisions addressing these sector-specific considerations. For classified government programmes, the Ministry of Defence's own security and information handling requirements will also apply independently of any commercial NDA.

When does an aerospace or defence company need an NDA?

At any pre-contractual stage where technically sensitive or commercially sensitive information is exchanged: when a prime contractor is qualifying a new tier-2 or tier-3 supplier and sharing programme requirements; when bidding for MOD or commercial aerospace contracts that require sharing proprietary capabilities and technical approaches; when a defence technology company is discussing a joint venture, partnership or licensing arrangement with another technology business; when early-stage R&D collaboration involves sharing proprietary research data, test results or prototype design information; and when engineering consultants, systems integrators or independent test facilities receive technical data to support a project proposal or evaluation.

How does dual-use technology affect an NDA in the UK?

Dual-use technology — items and information that have both civilian and military applications — is subject to export control regulations under the UK Strategic Export Controls and, for technology of US origin, US regulations that can apply to UK companies. Export control law restricts the transfer of certain controlled technology to foreign nationals and overseas entities, including through disclosure in a commercial context. These restrictions operate independently of and alongside any NDA. An NDA alone does not authorise the disclosure of export-controlled technology — separate legal assessment of export control obligations is required before sharing any controlled technical data with any party. For specialist advice on export control compliance, consult a solicitor or export control adviser.

Who owns the IP in a defence R&D programme?

Ownership of IP in a UK defence R&D programme depends on the funding structure and the terms of the contract. In government-funded defence R&D contracts, the MOD's standard DEFCON (Defence Contract Condition) clauses typically grant the Crown certain rights to use, modify and disclose the IP developed under the contract, while the contractor retains ownership. In commercially funded programmes, the developer normally retains IP unless a specific assignment is agreed. An NDA at the pre-contract stage does not determine IP ownership — it protects existing background IP until the development contract and its IP provisions are agreed.

Does the MOD use its own NDAs?

The MOD uses standard Defence Contract conditions and information security requirements that address confidentiality as part of the procurement framework. In pre-procurement discussions, MOD contracting authorities may use their own non-disclosure or confidentiality agreements. Industry parties entering discussions with MOD should review MOD-provided NDAs carefully before signing, as they may impose broad disclosure obligations to Crown bodies. Using an independent NDA as a counter-proposal or as a supplemental agreement for industry-to-industry disclosures that precede MOD involvement is appropriate and common practice.