International Security and Nonproliferation

Washington, DC

Agency facts

Full name
Department of State Bureau of International Security and Nonproliferation
Acronym
Office code
19X1SN
Organization
Contract obligations
$6,764,958 In FY2025

Agency codes and contract spending come from SAM.gov/FPDS.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $0
FY2026 $33,839,792
FY2025 $6,764,958
FY2024 $66,872,448
FY2023 $75,891,558

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Atlantic Diving Supply, Inc. $21,157,682
2 Uchicago Argonne, LLC $7,877,205
3 Federal Resources Corporation $3,025,000
4 Commonwealth Trading Partners Inc. $2,692,578
5 Darko Constructions Sae $2,313,121
6 KD Analytical Consulting LLC $389,655
7 U.s. Civilian Research And Development Foundation $334,059
8 American Institute In Taiwan $322,300
9 Jess Mar Constructores, S.A. $36,793
10 Cherokee Nation System Solutions LLC $34,766

Top contract vehicles by obligations

Rank Vehicle Obligated, FY2026–FY2027 Share
1 Solutions for Enterprise Wide Procurement V (SEWP V) GWAC run by NASA · 1 contractor $3,025,000

1 of 5 vehicles listed here. See the rest on GovTribe.

About this agency

The Department of State Bureau of International Security and Nonproliferation is a sub-agency within the State Department that administers contracts and grants for nonproliferation policy, security cooperation, and arms-control verification—funding technical assistance, research partnerships, inspection regimes, and capacity-building in these domains worldwide.

The bureau closed 2,130 contract awards over its portfolio history with combined potential value of $934.5 million, of which $744.9 million has been obligated. Contract award volume has declined sharply: 69 awards in 2022, 80 in 2023, 50 in 2024, 18 in 2025, and 7 year-to-date in 2026, with the most recent award dated September 30, 2026. Across 428 distinct prime contractors, the competitive landscape is fragmented. Over the last five years, the top five by award count—Atlantic Diving Supply Inc. (26 awards, $54.7 million potential value), New TECH Solutions Inc. (23 awards, $831 thousand potential value), U.S. Civilian Research and Development Foundation (16 awards, $5.5 million potential value), Culmen International LLC (16 awards, $58.5 million potential value), and miscellaneous foreign awardees (14 awards, $437 thousand potential value)—account for 42 percent of recent awards. By potential value over the same window, concentration tightens only modestly: Culmen International, Atlantic Diving Supply, Rapiscan Systems Inc., KD Analytical Consulting LLC, and Commonwealth Trading Partners Inc. hold 19 percent of combined potential value. The set-aside mix is minimal: 93 percent of awards carry no set-aside designation, 5 percent are small-business set-asides, and 1 percent each are Competitive or Sole-Source 8(a), with HUBZone and Service-Disabled Veteran-Owned Small Business representing less than 1 percent each.

The bureau awarded 473 grants with combined federal obligation of $363.2 million, with the first grant issued in 2009 and the most recent in February 2026. Grant volume has collapsed: 80 awards in 2022, 39 in 2023, 36 in 2024, 3 in 2025, and 2 year-to-date in 2026. Among 111 distinct recipients, concentration is moderately concentrated. The U.S. Civilian Research and Development Foundation leads both by count (25 awards, $49.8 million federal dollars) and by federal dollars, followed by the United Nations Office on Drugs and Crime (21 awards, $26.1 million federal dollars), The Research Foundation for the State University of New York (13 awards, $7.8 million federal dollars), the President and Fellows of Middlebury College (7 awards, $4.3 million federal dollars), and the United Nations Office for Disarmament Affairs (5 awards, $5.4 million federal dollars)—together accounting for 43 percent of recent awards and 26 percent of federal dollars. Assistance is predominantly structured as Cooperative Agreements (63 percent of awards) with a Project Grant minority (37 percent). No recent contract opportunities or grant opportunities are recorded in the source data.

Quick answers

What is International Security and Nonproliferation?

International Security and Nonproliferation (ISN) is part of Department of State. Its full name is Department of State Bureau of International Security and Nonproliferation.

How much does International Security and Nonproliferation spend on contracts?

Contracts funded by International Security and Nonproliferation and its offices obligated $6,764,958 in fiscal year 2025 and $183,368,756 in fiscal years 2023 through 2027.

Who are International Security and Nonproliferation's largest contractors?

The contractors International Security and Nonproliferation and its offices obligated the most to in fiscal years 2026 and 2027 are Atlantic Diving Supply, Inc. ($21,157,682), Uchicago Argonne, LLC ($7,877,205) and Federal Resources Corporation ($3,025,000).

Which contract vehicles does International Security and Nonproliferation use most?

The contract vehicle International Security and Nonproliferation and its offices obligated the most through in fiscal years 2026 and 2027 is Solutions for Enterprise Wide Procurement V (SEWP V) ($3,025,000). Orders through any contract vehicle obligated $3,017,315 in those years, 9% of its contract obligations.

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