JSI is a national leader in next-generation digital solutions, empowering providers to build, scale, and optimize high-performance networks. Backed by over 60 years of experience, we deliver end-to-end engineering, consulting, operational, and compliance services designed for a rapidly evolving digital world. Our consultative approach blends technical expertise with future-focused strategy by supporting everything from infrastructure design and deployment to regulatory compliance and 24/7 support. Committed to community growth and long-term impact, JSI partners with broadband providers to expand access, strengthen operations, and lead in an increasingly connected future.
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The JSI annual revenue was $69.8 million in 2026.
David Makuen is the CEO and Board Member of JSI.
393 people are employed at JSI.
JSI is based in Greenbelt, Maryland.
The NAICS codes for JSI are [5412, 541, 54].
The SIC codes for JSI are [874, 87, 73].