For software vendors looking to enter the NATO defence market, there are two distinct pathways: direct contracting with a NATO agency such as the NATO Communications and Information Agency (NCIA), and subcontracting through an established prime contractor. Each pathway has different requirements, timelines, and risk profiles. For most small and medium-sized software vendors, the subcontract route is the realistic entry point — not because direct contracting is impossible, but because the compliance and capitalisation requirements for direct NCIA contracting place it out of reach for companies without substantial prior NATO or national defence contracting experience.
This guide focuses on the subcontract pathway, which is where the majority of defence software innovation actually enters the NATO supply chain. Understanding how prime contractors select and manage software subcontractors is the practical knowledge that matters for a vendor trying to enter this market.
Two Paths: Direct NCIA Tender vs Subcontract Through Prime
The NCIA operates as NATO's primary technology acquisition agency. It publishes procurement notices through the NATO Business Opportunities portal and runs formal competitive tenders for IT and communications systems. Direct NCIA contracting requires company registration in the NCIA vendor database, compliance with NATO security requirements, and typically a history of successful defence or government IT delivery. The NCIA's standard contract values for software programmes are in the €5–50 million range, which means that even a successful competitive bid requires the financial and project management infrastructure to deliver at that scale.
The subcontract pathway involves becoming part of a prime contractor's supply chain for an existing or upcoming NATO programme. Prime contractors — companies like Thales, Leonardo, Airbus Defence, Indra, and BAE Systems — win NATO programme contracts and then assemble teams of subcontractors to deliver specific components. Software subcontractors typically provide a specific technical capability that the prime does not have in-house, whether that is a specialised analytics engine, a specific communications protocol implementation, or a domain-specific application. The commercial terms are negotiated bilaterally between the vendor and the prime, and the vendor's primary compliance obligation is to the prime's own supply chain requirements rather than directly to NATO's procurement standards.
Basic Requirements: ISO 27001, AQAP 2110, Country of Origin
ISO 27001 certification is effectively mandatory for any company seeking to operate in the NATO software supply chain. This is an information security management certification that demonstrates the vendor has implemented documented, audited processes for protecting sensitive information. Most prime contractors will not engage a software subcontractor that does not hold a current ISO 27001 certificate, and NCIA direct contracting requires it explicitly. The certification process takes six to eighteen months for a company that is starting from scratch and costs approximately €15,000–€50,000 depending on company size. Vendors without this certification should treat it as the first step in their NATO market entry preparation.
AQAP 2110 (Allied Quality Assurance Publication 2110) is the NATO quality management standard for software development. It is derived from ISO 9001 but adds specific requirements for software configuration management, requirements traceability, and testing documentation that are particular to defence software programmes. Not all NATO subcontracts require AQAP 2110 certification, but for any contract where the software is safety-critical or will be integrated into command and control systems, it is typically required. Prime contractors for large NATO system integration programmes generally require their key software subcontractors to be AQAP 2110 certified.
Country of origin is a constraint that is less often discussed explicitly but has significant practical importance. NATO procurement rules generally require that products and services come from NATO member states. This means that a company headquartered in a non-NATO country cannot typically be a direct subcontractor to a NATO prime. However, companies incorporated in NATO member states are eligible regardless of the nationality of their shareholders or founders, subject to security screening. For companies from partner countries such as Ukraine, establishing a legal entity in a NATO member state is the conventional approach to accessing the NATO supply chain as a subcontractor.
How to Find Prime Contractors Seeking Software Subcontractors
Prime contractors do not generally advertise subcontract opportunities publicly in the same way that NATO agencies advertise prime contract tenders. Subcontractor relationships are built through industry networks, conference contacts, and direct outreach. The most effective routes are:
NATO industry conferences and exhibitions. Events such as the DSEI (UK), Eurosatory (France), MSPO (Poland), and the AFCEA TechNet conferences provide structured environments for meeting prime contractor representatives. These events have specific sessions focused on supplier development and innovation, which are attended by supply chain managers who are actively looking for specialist subcontractors.
National defence industry associations. Most NATO member states have national defence industry associations (ADS in the UK, BITKOM defence chapter in Germany, GIFAS in France) that maintain supplier directories and run matchmaking programmes connecting SME technology companies with prime contractors. Membership in these associations is an effective way to gain visibility with supply chain managers at prime contractors.
Direct outreach to supply chain teams. Large prime contractors have dedicated supply chain development teams whose role is to identify and qualify new subcontractors. A direct approach to the supplier development function at a relevant prime contractor — with a clear articulation of what specific capability the vendor offers and why it is relevant to the prime's portfolio — is more effective than waiting to be discovered through passive registry entries.
NDA and IP Considerations
Defence software subcontracting involves two IP-related issues that require careful management from the outset. The first is the question of who owns IP developed during the subcontract. Prime contractors typically seek broad IP rights to software developed under the subcontract, including ownership of derivatives and background IP that the vendor contributes. Vendors should negotiate IP retention clauses that preserve their right to continue using and developing their core technology outside the scope of the specific NATO programme. A subcontract that assigns all IP to the prime effectively transfers the vendor's core asset to the prime contractor — this is commercially unacceptable for most software companies and should be resisted in negotiation.
Key insight: The most common mistake software vendors make when entering the NATO subcontract market is treating it as a sales process rather than a qualification process. Prime contractors are not looking for the best pitch — they are looking for the lowest-risk subcontractor for a specific technical requirement. Demonstrating compliance, operational track record, and technical credibility is more important than a compelling product demonstration.
The second issue is security classification handling. Some NATO programmes involve classified information, and working on classified programmes requires personnel security clearances for key staff, physical security measures for the working environment, and information system accreditation for any systems that process or store classified material. Obtaining and maintaining these clearances is expensive and time-consuming. Vendors who are not yet cleared should focus their initial NATO market entry on unclassified programmes and build the clearance infrastructure progressively as they establish their position in the market.
The NATO subcontract market rewards persistence and patience. Entry into the supply chain of a major prime contractor typically takes two to four years from initial contact to first contract. Companies that approach this as a long-term market development investment — building relationships, maintaining certifications, and building a track record on smaller contracts — are more likely to succeed than those expecting rapid revenue from their first engagement.