The EU's NIS2 cybersecurity directive and a concurrent push for open interoperability standards are reshaping how U.S. mid-sized manufacturers evaluate, procure, and deploy private 5G and edge AI infrastructure - even as American regulatory frameworks remain largely voluntary.
Background
NIS2 establishes a unified legal framework for cybersecurity across 18 critical sectors in the EU. The rules also cover product manufacturing, postal and courier services, and public administration - sectors at the heart of global supply chains serving U.S. plants. All organizations with more than 50 employees and annual revenues exceeding €10 million must comply, whether public or private. The NIS2 Directive became enforceable on October 18, 2024, with Member States required to transpose it into national law by October 17, 2024. Germany's implementation law entered into force on December 6, 2025, with registration and reporting conducted via the BSI portal, activated at the start of 2026.
The directive's reach extends well beyond EU borders. U.S. businesses are not automatically subject to NIS2 enforcement, but a U.S. company may need to comply or align with the framework if it maintains covered operations, customers, or partners within the EU. For suppliers in the supply chains of in-scope customers, contract flow-downs and supply chain policies create an indirect NIS2 impact - increasing cybersecurity compliance questionnaires from customers. Requests to renegotiate contracts may follow, and new agreements are likely to include more detailed NIS2 requirements.
Details
The supply chain pressure is quantifiable. According to ENISA, critical suppliers harbored 38% of identified supply chain vulnerabilities within NIS2-covered environments in 2024. NIS2 makes compliance mandatory by imposing significant financial penalties, establishing senior management liability, and reinforcing the role of local cybersecurity agencies in monitoring and controlling organizations. Fines under NIS2 can reach up to €10 million or 2% of global annual turnover for non-compliance. The directive introduces top management accountability for non-compliance with cybersecurity risk management measures, elevating cybersecurity to a boardroom concern.
For private 5G procurement specifically, the directive points toward established industrial standards. Implementing the ISA/IEC 62443 cybersecurity framework addresses much of NIS2 compliance, covering risk analysis, access control, strong authentication, cryptography, and continuous monitoring. NIS2 also envisions a European certification scheme - currently under development - for cloud services, 5G, consumer IoT, and industrial infrastructures.
On the interoperability front, the O-RAN Alliance's open specifications are increasingly central to procurement decisions. The Alliance's open interface specifications are gaining significant adoption across industry verticals, delivering interoperability, flexibility, and innovation while contributing to cost reduction, scalability, and enhanced security. Combined with O-RAN architecture, private 5G networks gain flexibility, interoperability, and scalability - features essential for addressing the dynamic demands of modern industrial environments. Forecasts predict Open RAN deployments will gain momentum after 2025, reaching an estimated 1.3 million Open RAN cell sites by the end of the decade.
The divergence between EU and U.S. procurement expectations is shaping vendor roadmaps. In the EU, manufacturers face legally binding obligations including mandatory incident reporting - requiring an initial notification within 24 hours and full incident disclosure within 72 hours - and structured vendor audits referenced in ENISA's Technical Implementation Guidance published in June 2025. In the U.S., mid-market manufacturers largely operate under voluntary frameworks such as the NIST Cybersecurity Framework, with compliance pressure driven primarily by customer contracts, cyber insurance underwriters, and sector-specific mandates such as CMMC for defense suppliers. The Wireless Broadband Alliance stresses the need to address security concerns at the outset of any private 5G project, noting that embedding security controls into network design reduces friction compared to retrofitting protections - aligning security investment with core business objectives.
The market context underlines the stakes. SNS Telecom & IT projects that annual investments in private 5G networks for vertical industries will grow at a CAGR of approximately 41% between 2025 and 2028, surpassing $5 billion by the end of 2028. Much of this growth will initially stem from highly localized 5G networks covering geographically limited areas for Industry 4.0 applications in manufacturing and process industries. Real-world deployments are accelerating: Celanese and NTT DATA have deployed a fully managed private 5G network at two Texas manufacturing plants, supporting robotics, edge analytics, and secure communications. Hitachi Rail's Hagerstown factory operates a secure private 5G network enabling predictive maintenance, digital twins, AI-driven inspections, and real-time automation.
Outlook
On January 20, 2026, the European Commission proposed targeted amendments to the NIS2 directive to increase legal clarity. The amendments aim to simplify EU cybersecurity rules and ease compliance for 28,700 companies, including 6,200 micro and small enterprises. The Commission also presented a new EU cybersecurity package combining a proposed overhaul of the Cybersecurity Act with targeted NIS2 amendments, with goals of strengthening EU cyber resilience, reducing regulatory fragmentation, and more effectively addressing growing ICT supply chain risks. For U.S. mid-market plant operators sourcing from or supplying EU-linked manufacturers, procurement teams should require vendors to document 3GPP Non-Public Network (NPN) architecture compliance, O-RAN Alliance interoperability test results, and alignment with ISA/IEC 62443 before committing capital expenditure - positioning operations for both current EU supplier requirements and potential future domestic mandates.
