Geosep Services, LLC

Geosep Services, LLC, a Moscow, Idaho-based small business, delivers specialized geological laboratory services to the U.S. Geological Survey as a prime contractor, performing mineral separation, geochronological dating (apatite fission-track and uranium-lead analysis), and sample processing on a recurring task-order basis under a $1.3 million, five-year indefinite delivery contract with the USGS Geology, Energy & Minerals Science Center that commenced in July 2021. The vendor operates exclusively as a prime contractor in the full-and-open and small-business set-aside market; recent task orders carry both competitive and set-aside (Total Small Business) designations, with no sub-award activity in the source record.

Geosep's customer base is concentrated almost entirely within a single agency—the Department of the Interior's USGS Office of Acquisitions and Grants, which accounts for 63 of 77 awards (approximately $3 million in combined potential value). The USGS Alaska Science Center accounts for 14 awards ($250 thousand combined potential value), bringing total USGS concentration to 100% of the recorded footprint. Activity spans thirteen years of awards but has moderated in recent years: six awards in 2022 and 2023, three in 2024, five in 2025, and one in 2026 year-to-date. The vendor's combined potential value across all recorded awards totals $3.3 million, with $1.7 million obligated (53% realization).

Work is performed at Geosep's primary facility in Moscow, Idaho and a secondary laboratory in Portland, Oregon. The vendor's capability portfolio centers on uranium-lead (U-Pb) geochronologic analysis of mineral separates (zircon and apatite), apatite fission-track (AFT) analysis, detrital zircon dating, laser ablation inductively coupled plasma mass spectrometry analysis, and mineral separation for sedimentary and igneous rock samples. Representative recent task orders include a $44,887.50 purchase order from USGS for 35 U-Pb crystallization age analyses (awarded August 2025), a $32,850 purchase order for apatite fission-track and U-Pb analysis supporting ore deposit formation modeling in the Kuskokwim Mountains, Alaska (awarded March 2026, completion December 2026), and a $54,675 purchase order for mineral separation and geochronological analysis supporting petroleum systems analysis and geological mapping programs (awarded May 2025). Task orders span research in Alaska Basins Petroleum Systems, Gulf of Mexico Petroleum Geology, the National Cooperative Geologic Mapping Program, and USGS energy and minerals science initiatives.

Three blanket purchase agreement and indefinite delivery contract vehicles structure Geosep's work: BPA ING15PA00008 (14 task orders, $245 thousand combined value), IDC 140G0121D0011 (11 task orders, $242 thousand combined value), and BPA 140G0219A0002 (10 task orders, $244 thousand combined value). Six awards with completion dates in the next twenty-four months carry combined potential value of $189 thousand, representing recompete exposure. The vendor carries primary NAICS classifications under "All Other Professional, Scientific, and Technical Services" (36 awards) and "Testing Laboratories and Services" (35 awards), with the PSC category "Special Studies/Analysis—Geological" dominating at 74 awards.

Conduct geochronologic analyses of certain minerals from small rock samples to obtain geologic age and/or constrain likely thermal history of samples; separate certain minerals from small rock samples for the purpose of geochronology (geological dating)