SOLICITATION NUMBER 391634 SOFTWARE ENGINEERING SUPPORT SERVICES

Closed — responses were due 9 Sep 2026 · Small Business Set Aside - Total · Department of Energy (DOE) · Richland, WA · NAICS 541511 · Solicitation SOLICITATION_NUMBER_391634

Solicitation details

Solicitation number	SOLICITATION_NUMBER_391634
Notice ID	1cc7779b1fd14a8abef70762b83e2bbe
Agency	Department of Energy (DOE)
Contracting office	HANFORD TANK WASTE OPERATIONS & CLOSURE LLC - DOE CONTRACTOR
NAICS code	541511 — Custom Computer Programming Services
Set-aside	Small Business Set Aside - Total
Notice type	Sources Sought
Posted	26 August 2026
Response deadline	09 September 2026 (closed)
Place of performance	Richland, WA, USA

Description

Hanford Tank Waste Operations & Closure, LLC (H2C) requests proposals for Software Engineering Support Services. The requested work is in support of H2C s Prime Contract 89303324DEM000096 with the U.S. Department of Energy, Office of River Protection.

Version history

SAM.gov has posted 3 notices under solicitation SOLICITATION_NUMBER_391634, oldest first.

26 August 2026 — Sources Sought (this page)
02 September 2026 — Sources Sought
15 September 2026 — Sources Sought (latest)

Documents in the solicitation package

1 file is attached to this notice.

Current Request for Proposal

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Market context: DOE and NAICS 541511

About the buyer and the industry, not this specific solicitation. Source: USASpending.gov award data, updated nightly.

In fiscal year 2026, DOE obligated $28.0M across 19 contract actions under NAICS 541511.
43 contracts worth $221.3M in this category end within the next 18 months.

DOE contracts under NAICS 541511 →

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