# ROUNDTOP RFI

Canonical: https://abierto.us/opportunities/darpasn2643

- Solicitation number: DARPA-SN-26-43
- Notice type: Special notice
- Status: Closed. Deadline was June 1, 2026
- Department: Department of Defense
- Agency: Defense Advanced Research Projects Agency
- Contracting office: Def Advanced Research Projects Agcy (HR0011)
- NAICS: 541714 Research and Development in Biotechnology (except Nanobiotechnology)
- Product or service code: AC11 National Defense R&D Services; Department Of Defense - Military; Basic Research
- First posted: May 6, 2026
- Last posted: June 1, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/92561450f1eb4f99ae28b111f100b8c7/view

## Description

The Biological Technologies Office (BTO) of the Defense Advanced Research Projects Agency (DARPA) seeks to solicit input from industry, academia, government laboratories, and nontraditional performers regarding the most advanced methods to rapidly stabilize and/or repurpose large volumes of petroleum products, for example petroleum abandoned within above ground or underground storage tanks.

## Publications

- May 6, 2026: Special notice, due June 1, 2026. Notice a31b2125d1484369b4444c94ebbdcc8f. https://sam.gov/workspace/contract/opp/a31b2125d1484369b4444c94ebbdcc8f/view
- June 1, 2026: Special notice, due June 1, 2026. Notice 92561450f1eb4f99ae28b111f100b8c7. https://sam.gov/workspace/contract/opp/92561450f1eb4f99ae28b111f100b8c7/view

## Points of contact

- Dr. Mark Salvador, DARPA/BTO, Roundtop@darpa.mil

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/darpasn2643.