Stell SIA Salas O'brien LLC

Stell SIA Salas O'Brien LLC, doing business as S3, is a women-owned, economically disadvantaged women-owned, veteran-owned, and service-disabled veteran-owned small business joint venture based in Mountlake Terrace, Washington that delivers architect-engineer services, environmental and sustainability consulting, facility condition assessments, and capital asset management to federal civilian agencies predominantly as a prime contractor (94% of recent awards), with the vast majority of activity concentrated under service-disabled veteran-owned small business set-asides and women-owned small business set-asides.

S3's customer concentration is heavily skewed toward a single agency. The Department of Veterans Affairs Office of Construction and Facilities Management represents 8 awards and $900.8 million in combined potential value—nearly 69% of the vendor's entire portfolio—driven by a $300 million single-award environmental services IDIQ awarded September 23, 2025, covering environmental compliance, historic preservation, sustainability, hazardous materials inspection, NEPA documentation, and endangered species management at VA facilities nationwide, with performance from Mountlake Terrace, Washington and VA locations through March 17, 2031. The Army Corps of Engineers Environmental Quality Program MATOC represents $249 million in a separate $249 million ceiling, and NASA Armstrong Flight Research Center anchors $150 million across two architect-engineer IDIQs for facility design and construction management at NASA centers nationwide. NASA Glenn Research Center and the National Institute of Standards and Technology follow with smaller volumes ($13.2 million and $9 million respectively). The top five customers account for 81% of awards by count, with the dollars concentration substantially higher—VA and Corps of Engineers together represent 86% of combined potential value.

S3 holds multiple federally managed IDIQs positioned across set-aside tiers. The vendor sits on OASIS+ Women-Owned Small Business and OASIS+ Service-Disabled Veteran-Owned Small Business indefinite-delivery contracts (both GSA Federal Acquisition Service, June 12, 2025 and April 16, 2025 awards respectively, multiple-award vehicles with no specified ceilings), the OASIS+ Total Small Business set-aside IDIQ (April 15, 2025 award, $2,500 minimum guarantee, 0.15% contract access fee on all task orders), the NASA West Regional Architect Engineer Services 2025-2030 (WRAES) multiple-award contract at Armstrong Flight Research Center ($75 million ceiling, July 14, 2025), a NASA Glenn Research Center 12-million-dollar multiple-award A-E IDIQ through July 31, 2028 covering the Eastern Region (Glenn LF and ATF, Goddard, Wallops, Langley, and other NASA centers nationwide), the NIST single-award Capital Asset Management Services BPA ($8.3 million ceiling through August 31, 2027, primary focus Gaithersburg, Maryland), the Army Corps of Engineers South Atlantic Division Environmental Quality Program MATOC ($249 million, April 11, 2025), and the GSA Multiple Award Schedule (2 million-dollar ceiling through April 16, 2028). Task-order activity on the MAS has been heaviest—15 task orders with $10.4 million combined potential value—reflecting recent delivery orders from VA, NIST, Indian Health Service, and Glenn Research Center for seismic upgrade RFP support, facility condition assessments, campus maintenance, capital asset management consulting, and preventive maintenance optimization.

S3's capability framing centers on architect-engineer and environmental consulting work grounded in concrete recent delivery orders. A $376.7 million ceiling delivery order awarded September 17, 2024, by VA's Office of Construction and Facilities Management covers design-build procurement support for a seismic upgrade and renovation of Building 111 at the VA Medical Center in American Lake, Washington, scheduled through September 30, 2026. A related $458.8 million ceiling order from VA for Building 9 seismic upgrade and renovation RFP development at the same facility runs to September 30, 2026. NASA Glenn Research Center issued a $982,006 delivery order on April 2, 2026, for preventive maintenance optimization of T-1 and T-2 equipment assets at NASA Ames Research Center, Mountain View, California (completion March 12, 2027), and a $190,080 order on April 3, 2026, for design and installation of a 480-volt backup generator system at Glenn's Building 12 Steam Plant in Cleveland, Ohio (completion August 15, 2026). NIST issued three BPA calls in October 2026 totaling $177.3 million for NIST and Pricebook hosting ($102,891), Builder SMS consulting services ($39,248), and quarterly backlog calculations ($35,143), all completing September 30, 2027. Indian Health Service ordered $100,462 on July 31, 2024, for comprehensive facility condition assessment reports across Minnesota, Wisconsin, and Michigan facilities. Awards outside set-asides include the full-and-open NASA Glenn and Armstrong vehicle work; roughly 65% of S3's prime awards carry set-aside designations, predominantly SDVOSB.

S3's GSA Schedule labor portfolio spans thirteen categories priced from $90.58 to $256.06 per hour, with entry-level positions (Editor, Junior Scientist, Junior Engineer) in the $90–$111 range and experienced program-management roles at $256. All positions are uncleared; education requirements range from high school to bachelor's degree. The rate spectrum and labor-category breadth support field engineering, program management, and technical-support roles typical of architect-engineer and environmental consulting delivery.

Activity has accelerated sharply. The vendor recorded four awards in 2023, six in 2024, and sixteen in 2025 (a 167% year-over-year jump), with five awards in 2026 through early October. Combined potential value across the portfolio stands at $1.32 billion, though only $4 million has been obligated to date, reflecting the recent IDIQ awards carrying large ceilings against minimal initial draws. Recompete exposure in the next twenty-four months is modest: five awards with ultimate completion dates inside that window carry only $1.2 million in combined potential value, meaning near-term recompete activity is not a material risk signal. The vendor subcontracts as a sub to Jacobs Government Services Company on SMS Builder sustainment engineering at Fort Carson, Colorado under Installation Management Command (awards December 14, 2023, and June 5, 2024), representing S3's only named sub-award activity in the source.