Fiber network design and deployment services for broadband providers
JSI designs and deploys fiber-to-the-home infrastructure for broadband providers across the United States. The tech stack is dominated by CAD, GIS, and network simulation tools (Cisco ASR/NCS, Juniper MX/EX, ArcGIS, MicroStation, AutoCAD) — typical of infrastructure engineering firms — paired with enterprise operations software (NetSuite, Microsoft 365). Project work centers on outside-plant fiber buildouts and permitting, while pain-point data reveals the real operational friction: environmental clearance, regulatory compliance, and grant-application processes are where deals stall.
Notable leadership hires: Chief Executive Officer
JSI is a national engineering and consulting firm specializing in broadband network infrastructure. Founded in 1962, the company works with telecom providers on fiber-to-the-home design, deployment, regulatory compliance, and 24/7 operational support. Based in Greenbelt, Maryland, JSI maintains a 501–1,000-person workforce structured around an engineering-heavy organization (54 roles) alongside consulting, legal, and construction teams. Current project momentum focuses on outside-plant fiber buildouts, network design, permitting workflows, and a new client-facing learning management system.
JSI uses Cisco ASR 9000, Cisco NCS, Juniper MX/EX for network design; ArcGIS, MicroStation, AutoCAD for GIS and CAD work; and NetSuite for operations management, along with Microsoft 365 and Linux infrastructure.
JSI is headquartered in Greenbelt, Maryland, and hires exclusively in the United States.
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