Sigma International Construction LLC

Sigma International Construction LLC 1962 Division, operating as Sigma International Construction, is a for-profit limited liability company based in Gainesville, Virginia, that delivers construction, maintenance, and repair services for U.S. diplomatic facilities overseas, operating exclusively as a prime contractor (100% of awards) on full-and-open procurements with no set-aside designations. The vendor specializes in infrastructure support at U.S. Embassy compounds in Iraq, including T-wall barrier fabrication and installation, water and sewer line repair, HVAC systems, electrical work, and structural security enhancements.

All customer relationships and work are with the Department of State. The vendor's activity concentrates entirely within State's overseas presence mission: the Bureau of Overseas Building Operations accounts for four awards totaling $5.5 million in combined potential value, the Bureau of Diplomatic Security holds three awards worth $2.6 million, and the Bureau of Near Eastern Affairs (BNEAA) anchors twelve awards carrying $448 thousand combined potential value. The concentration by dollar magnitude is dominated by larger discrete construction projects under the building-operations and diplomatic-security bureaus, while BNEAA drives volume through smaller maintenance and repair orders. Recent work includes a $4.3 million design-build purchase order awarded September 30, 2026, with completion due August 15, 2027; a $2.1 million firm fixed-price contract from the Bureau of Diplomatic Security in October 2024 for T-wall barrier construction, manufacturing, and foundation work at the East End Housing compound in Baghdad; and a $1.06 million construction contract awarded January 26, 2026, for infrastructure work at the U.S. Embassy. Recurring smaller awards from BNEAA address emergency water-line repairs, HVAC installation, and facility materials supply, each in the $21 thousand to $85 thousand range. Work is performed in Iraq, with administrative oversight at the State Department's contracting offices in Washington, D.C.

The vendor's award trajectory shows modest but uneven activity — five awards in 2022, one in 2023, two in 2024, three in 2025, and three in 2026 — with total obligated value of $8.6 million across nineteen awards since 2022. Two awards carrying combined potential value of $4.4 million face ultimate completion within the next twenty-four months and will require recompete action. The vendor holds no position on government-wide vehicles, BPAs, or agency-wide IDIQs; all work flows from direct task orders or definitive contracts issued by State's regional and functional bureaus. Category concentration centers on water and sewer infrastructure, plumbing and HVAC, and non-building construction, reflecting the embedded maintenance and security-upgrade character of the work.

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