Leticia Diaz

Leticia Diaz, a self-certified small disadvantaged business sole proprietorship based in Aptos, California, provides sediment sample preparation and geochemistry laboratory analysis services to the federal government exclusively as a prime contractor on a single-customer IDIQ. The vendor operates entirely under Total Small Business set-asides and competes 100% within small business designations, with all eighteen recent prime awards (combined potential value $606 thousand) flowing from the U.S. Geological Survey's Office of Acquisitions and Grants.

The vendor's capability portfolio is narrowly focused on specialized environmental laboratory services: sediment sample preparation, sediment sample analysis, and geochemistry analysis supporting field research programs along the Pacific coast. All work is performed in Aptos and Santa Cruz, California, and serves the USGS Pacific Coastal and Marine Science Center's field studies and environmental monitoring initiatives. Representative work includes Task Order 1 (awarded August 1, 2023, $45,945) for sediment sample preparation; Task Order 3 (awarded August 1, 2024, $40,890) covering sediment sample preparation with no-cost extension language; Task Order 10 (awarded March 12, 2026, $6,120) supporting wildfire carbon studies with completion scheduled for March 14, 2027; and a July 2022 purchase order valued at $36,800 for sediment sample preparation designated as Total Small Business.

Customer concentration is total. The USGS Office of Acquisitions and Grants accounts for 17 of 18 awards (94% of recent awards) and $589 thousand (97% of combined potential value). Leticia Diaz holds a single-award Indefinite Delivery Contract (140G0323D0007), valued at $310,400 with an ultimate completion date of July 31, 2028, that has generated ten sequential task orders as of March 2026. This IDIQ is the sole parent vehicle in the vendor's portfolio, with $174 thousand in combined potential value across the ten task orders.

Activity has grown incrementally over the past five years — one award in 2022, two in 2023, three in 2024, five in 2025, and one in 2026. Five awards with ultimate completion dates in the next twenty-four months carry combined potential value of $109 thousand and will require recompete before July 31, 2027. The vendor has no subcontract footprint; all work is prime delivery. Leticia Diaz's federal footprint is highly specialized and deeply concentrated: a single-source, single-customer laboratory services provider with no pipeline outside the USGS and no teaming relationships or subcontract capacity.