NS4 Inc.

NS4 Inc., a minority-owned small disadvantaged business based in Leesburg, Virginia, holds prime positions on two major Department of Defense indefinite-delivery vehicles as of early 2026 but has placed minimal task orders to date. The company is a Subchapter S corporation with Subcontinent Asian American ownership and self-certified small disadvantaged business status, competing on full-and-open (non-set-aside) basis across its current federal footprint.

NS4's customer base is concentrated in defense technology: the Department of the Navy's Naval Sea Systems Command (two awards, $4 billion combined potential value) and the Missile Defense Agency (two awards, $500 combined potential value) account for 100% of tracked awards. The Naval Sea Systems Command relationship anchors the dollar value through a multiple-award IDIQ under the Seaport Next Generation (Seaport-NXG) vehicle awarded January 2, 2025, with a $4 billion ceiling extending through January 1, 2029. The Missile Defense Agency relationship centers on the Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) multiple-award IDIQ, awarded January 21, 2026, with a $151 billion ceiling extending through December 28, 2035. SHIELD covers research, development, systems engineering, weapon design, production, test and evaluation, and cybersecurity across air, missile, space, and cyber defense domains, leveraging AI, machine learning, and open systems architectures. NS4 received a $500 minimum guarantee task order under each IDIQ; combined actual obligations across all four awards total $1 thousand against a $4 billion combined potential value, indicating the vehicles are newly established.

NS4 operates exclusively as a prime contractor (100% of awards) with no subcontract activity in the source data. Service Contract Inventory data captures 3 SCI records across FY2024 — all as named subcontractor — representing approximately 6.7 FTEs. This SCI activity reflects sub-engagement on service contracts captured above the $150,000 reporting threshold and does not represent the company's total federal or enterprise footprint; the SCI records predate the prime IDIQ awards by several months and indicate prior subcontracting activity not carried forward into the prime vehicles.

NS4's federal footprint is nascent. All four tracked prime awards fall within the past fourteen months, with the two largest vehicles (SHIELD and Seaport-NXG) established in late January 2025 and January 2026 respectively. No task orders beyond minimum guarantee amounts have been obligated on either vehicle as of the source date, leaving recompete exposure and sustained-capability profile undefined.