Skip to content
DefDex

Prime

Mission Support and Test Services

Mission Support and Test Services is a prime tracked in the DefDex field guide.

Federal Prime Contracts$3.9M obligated · FY2026–FY2026

Obligated
$3.9M
FY2026–FY2026
Contract actions
6
1 awards
Top buyer
U.S. Department of Energy
100% of obligations

Top buyers

  1. U.S. Department of Energy$3.9M 100%

What they sell (PSC)

  1. Operation of Miscellaneous Buildings$3.9M 100%

Where the work is done

  1. NV$3.9M 100%

Largest awards1

  • IGF::CL,CT::IGF Contract Award DE-NA0003624 to the Mission Support and Test Services LLC (Msts) for the Management and Operation of the Department of Energy National Nuclear Security Administration's Nevada National Security Site. · U.S. Department of Energy · USAspending ↗
    $3.9M

Signed obligations on federal prime contracts (award types A–D) from USAspending, FY2008 through Sep 30, 2026. Obligations are money the government committed, not company revenue, and include de-obligations. Subcontracts and grants are excluded. Matching is by registered UEI.

Joint venture

Owned by HII Nuclear, Inc. (member), Honeywell International (member) and Jacobs Engineering Group, Inc. (member; exact parent mapping needs review). Its awards are counted here only, never in a partner's totals. Source

Sources0

No citations recorded yet.

Government identifiers1

UEI
YSYZHPCG4XB3
MISSION SUPPORT & TEST SERVICES LLC
Checked Oct 27, 2026

Identifiers are matched to this legal entity; related companies may hold different registrations.

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.