NEC Networks & System Integration Corporation

NEC Networks & System Integration Corporation (NECネッツエスアイ株式会社; NESIC) is a systems integrator with particular strength in building telecommunications and network infrastructure and is a wholly owned NEC subsidiary. Its defining feature is the combination of planning, implementation, and operation of information and communications networks and ICT systems—with particular strength in telecommunications and networks—and being a wholly owned NEC subsidiary following its 2025 delisting. Its services cover planning and consulting, design, implementation, installation, operation and monitoring, outsourcing, and cloud services for information and communications networks and business ICT systems. It has substantial expertise and next-generation talent in telecommunications, networking, and communications. NESIC was delisted in 2025/3 and became a wholly owned NEC subsidiary, making it a telecommunications- and network-focused systems integrator.