OST Inc.

OST Inc., doing business as Optimal Solutions And Technologies, is a McLean, Virginia-based federal contractor that provides systems engineering, technical assistance, program management, and subject matter expertise to defense and civilian agencies as a prime contractor on a multi-billion-dollar portfolio of indefinite delivery vehicles and delivery orders, competing in unrestricted full-and-open federal procurements with no set-aside posture.

OST's customer concentration is heavily weighted toward defense, anchored by the Department of the Army's Program Executive Office for Simulation, Training and Instrumentation (PEO STRI), which accounts for 86 awards and $897.2 million in combined potential value (56% of awards by count). However, the top-five-customer ranking by potential value shifts dramatically when accounting for large vehicle ceilings: the Army Materiel Command's Aberdeen Proving Ground location dominates at $37.65 billion across three awards, followed by the Internal Revenue Service at $8.03 billion across ten awards, the Navy at $3.96 billion, the FAA at $2.7 billion across 34 awards, and the Air Force at $950 million. The PEO STRI relationship is the vendor's primary revenue anchor in execution, generating substantial task-order flow for systems engineering and technical assistance supporting simulation, training, and instrumentation programs across Project Manager Cyber Test and Training, Project Manager Synthetic Environment, Project Manager Training Devices, and the International Program Office, with representative delivery orders valued at $55.009 million (Army PEO STRI, Feb 2026, OASIS+ Unrestricted), $19.093 million (FEMA NFIP coordination, Sep 2025), $17.607 million (Army TRADE SETA, Feb 2025, Total Small Business set-aside), $13.877 million (Army PM SE, Feb 2025), and $8.801 million (Army TADSS, Feb 2025, Total Small Business set-aside).

OST holds positions on seven major vehicle platforms spanning defense and civilian agencies. The Indefinite Delivery Contract W900KK17D0002 (Army) carries 87 task orders totaling $416.7 million in combined potential value and is OST's highest-volume vehicle. The OASIS+ Unrestricted GWAC (GSA, awarded Apr 2025, ceiling of $999,999,999,999) anchors cross-agency access with time-and-materials pricing; the source notes this as a government-wide vehicle supporting federal civilian and defense customers. The FAA's Information Technology Innovative Procurement Strategic Sourcing (ITIPSS) single-award IDC, awarded November 2024, carries a $2.419 billion ceiling and runs through May 31, 2034, for IT services and solutions across FAA non-National Airspace Systems mission support. The Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) multiple-award IDIQ, awarded by the Missile Defense Agency on December 29, 2025, carries a $151 billion ceiling and a ten-year performance period through December 28, 2035, for research, development, prototyping, systems engineering, test and evaluation, and modernization across air, missile, space, cyber, and hybrid defense domains; an initial $500 delivery order was issued the same day. OST also holds the Joint All Domain Command and Control Support multiple-award IDV with the Air Force (ceiling $950 million, May 2025 expiration), the Eglin Wide Agile Acquisition Contract (EWAAC, ceiling $46 billion through Sep 2031), a Blanket Purchase Agreement DTFAWA10A00235 under FAA with 27 task orders and $151.9 million combined value, an Indefinite Delivery Contract DTFAWA03D03035 under FAA with 10 task orders and $126.4 million combined value, and a GSA Multiple Award Schedule contract (ceiling $25 million, 15 task orders, $70.4 million combined value, running through Sep 2027) covering IT professional services across 38 labor categories.

Recent activity is volatile. Award volume was 12 in 2022, peaked at 23 in 2023, declined to 16 in 2024, and ran to 15 in 2025, with one award recorded in 2026 to date. The recompete cliff signals modest near-term exposure: two awards totaling $74.1 million in combined potential value reach ultimate completion within the next twenty-four months. Combined potential value across the full portfolio is $121.43 billion, though obligated dollars stand at $989.9 million (1% of combined potential value), reflecting the vendor's reliance on large unexercised vehicle ceilings. SCI-reported invoicing on federal service contracts above the $150,000 threshold totaled $119.3 million across FY2022–FY2024 (FY2023 peak of $68.8 million across 292 FTEs), with median government-paid rates running $70.70 per hour and a spectrum extending from $63.13 to $114.82 per hour. Across SCI-reportable prime contracts, subcontractors performed 29% of total contractor hours, with 26 named subcontractors reported in the dataset.

OST operates as a prime on 92% of its awards. The vendor delivers integrated services spanning engineering services (97 awards), custom computer programming (46 awards), and other IT and computer-related services (29 awards), with program management and professional support services (97 awards by PSC code) as the dominant capability theme. The vendor's footprint is concentrated in defense systems engineering, technical assistance, and modernization, with secondary exposure through civilian IT and emergency-management work (FEMA's National Flood Insurance Program). Award dates span from July 2001 to February 2026, indicating a long-standing federal presence with sustained PEO STRI engagement as the core revenue driver.

OST - a CMMI Level 5/ISO 9001 firm operating in 6 states. Provides (1) management consulting, (2) integrated info technology, (3) research, development, and engineering solution. Our staff possesses certifications that include CISSP, ITIL, PMP, and QAI. Agile Scrum Development