Comply365

Comply365 delivers a cloud platform that manages operational content, safety documentation, and regulatory compliance for heavily regulated industries. Its modules cover document management, safety management systems, and training compliance, ensuring that technical manuals and procedures stay current and audit-ready. Airlines, MROs, and defense organizations use it to distribute and track controlled documents across their workforces.

Technology-focused private equity firm Accel-KKR holds a majority stake in Comply365. Under its ownership, Comply365 merged with Vistair, a UK-based aviation safety and compliance software provider, to form a combined entity with broader geographic reach and a larger product suite serving safety-critical industries (per the firm's official communications).

The merger combined two specialist compliance-software vendors with complementary geographic footprints — Comply365 strong in North American aviation and defense, Vistair entrenched with European and Middle Eastern carriers. The combination created a scaled platform capable of serving global airline groups, MRO networks, and defense contractors under a single operational-compliance software stack, while giving Accel-KKR a larger base for further add-on acquisitions.

Aviation, defense, and rail form the core verticals. Within aviation, the customer base includes commercial airlines, cargo carriers, business aviation operators, and maintenance, repair, and overhaul providers. The defense segment covers contractors and government-aligned organizations. Rail and energy represent adjacent regulated markets where the firm is expanding through its buy-and-build strategy.

Aviation remains the largest vertical, but the firm has targeted expansion into rail and energy through both organic product development and acquisition. The regulatory and operational-compliance requirements in rail — where safety documentation and crew training records mirror aviation's rigor — make it a natural adjacency for the platform.