Mantech Advanced Systems International, Inc.

ManTech Advanced Systems International, Inc., a subsidiary of ManTech International Corporation, operates as a large-business prime contractor delivering systems engineering, software development, cybersecurity operations, IT infrastructure, and mission-critical technical services to defense, intelligence, and civilian federal agencies, with 95 percent of recent awards held as prime contracts and no set-aside posture.

The company's customer concentration is heavily weighted toward defense. The Department of the Navy accounts for dominant activity volume—Naval Air Systems Command's Naval Air Warfare Center ranks second in award count across the portfolio with 341 awards (combined potential value $1.84 billion), while Naval Sea Systems Command places fifth by count with 159 awards ($11.1 billion combined potential value). The Department of State follows third with 192 awards. By dollar concentration, the picture shifts toward enterprise IT vehicles: GSA Federal Acquisition Service leads with 118 awards carrying $94.9 billion in combined potential value, and the VA Technology Acquisition Center ranks second with 71 awards worth $60.97 billion. These rankings signal that while ManTech competes heavily on Navy delivery orders, its largest dollar exposure sits on governmentwide IT vehicles where task order volume remains distributed.

ManTech holds a substantial parent-vehicle portfolio anchoring its federal footprint. The vendor sits on the OASIS+ Unrestricted multiple-award IDIQ (awarded December 17, 2024, with a $999.999 trillion ceiling through December 2029) and the Alliant 3 GWAC (awarded February 25, 2026, with a $999.999 trillion ceiling through March 2036). Both vehicles are used by multiple civilian and defense agencies for flexible task-order contracting. ManTech also holds the Seaport Next Generation (Seaport-NXG) Navy multiple-award IDIQ for engineering and systems integration across naval platforms; task orders under this vehicle regularly exceed $60 million and target ship design, engineering integration, advanced electronics systems, and marine engineering support. Additional vehicles include the $60.7 billion VA T4NG2 IT services IDIQ, a $46 billion Air Force engineering and simulation services IDIQ under the Eglin EWAAC on-ramp, the Alliant II GWAC for IT services, a $1.277 billion delivery order under ICON (Intelligence and Cyber Operations Network) at the Office of the Secretary of Defense, a $198.6 million NOAA cybersecurity infrastructure delivery order under the GSA Multiple Award Schedule, and agency-specific single-award vehicles including a $49.5 million PBGC Budget Department Management System implementation IDIQ and a $49.6 million CJIS IT services bridge contract with the FBI Headquarters Division. Recent work includes two Naval Sea Systems Command delivery orders totaling $284.5 million (awarded March and October 2025) for ship engineering and combat systems test and evaluation, a $909.9 million USSOUTHCOM cyber and IT services delivery order under Alliant II (awarded August 2025 with completion August 2032), a $1.277 billion ICON delivery order at OSD (awarded July 2024 with completion September 2029), a $73.2 million Naval Sea Systems Command delivery order for surface ship maintenance engineering under Seaport-NXG (June 2024), a $91.5 million Naval Air Warfare Center delivery order for marine engineering support under Seaport-NXG (May 2024), and a $92 million PEO Command Control Communications-Tactical delivery order for network modernization and mission network product technical support under the RS3 IDIQ (February 2025).

ManTech's activity trajectory shows moderate growth: 85 awards in 2022, rising to 127 in 2024, with 102 awards recorded in 2025 and 23 initial awards visible in 2026. Within the next twenty-four months, 66 awards carrying $4.64 billion in combined potential value face completion and recompete exposure. Service Contract Inventory data for FY2022–FY2024 shows SCI-reportable invoiced revenue of $381.9 million (FY2022), $378.4 million (FY2023), and $418.2 million (FY2024) across a growing workforce: 669 FTEs in FY2022, rising to 1,784 FTEs in FY2024. On federal services contracts captured in SCI, government-paid hourly rates ranged from a tenth-percentile floor of $74.12 per hour to a median of $124.81 per hour, with senior and specialized labor pricing reaching $367.82 per hour at the 90th percentile. Across SCI-reportable prime contracts, subcontractors performed approximately 14 percent of total contractor hours; ManTech named 417 distinct subcontractors across its service contracts.

ManTech operates predominantly as a prime contractor and builds delivery teams through subcontracting. Named subcontractors span large and small businesses. Recent subs include World Wide Technology LLC and Dell Federal Systems L.P. (IT hardware and software) on the USSOUTHCOM SCITES 2 delivery order, Thundercat Technology (service-disabled veteran-owned small business) on the NOAA cyber security center order, Carahsoft Technology on CDM Defend Group E cybersecurity services, Systems Planning and Analysis Inc. (engineering services) on Naval Air Warfare Center task orders, Serco Inc. (large foreign-owned contractor) on ship engineering and naval aviation integration work, Survice Engineering Company LLC (veteran-owned small business) on systems engineering, and Tactical Air Support Inc. (small business) on naval aviation training and sense-and-avoid modeling support. The vendor engages small, woman-owned, and service-disabled veteran-owned firms across its federal footprint, reflecting prime-contractor teaming practice on larger efforts while maintaining direct labor delivery on core programs.

ManTech's capability portfolio spans concrete service delivery. Modeling and simulation tool development and operations represent a recurring theme across Defense District Washington delivery orders (recent scope includes software development, modification, maintenance, and operation of specified modeling and simulation tools for force structure assessment and contingency planning). The vendor delivers particle analysis and advanced environmental measurement services to Air Force Space Command at Patrick Space Force Base and Sunol, California. Cybersecurity operations, infrastructure support, and DevSecOps are evident across USSOUTHCOM (enterprise cyber and IT services), CFPB (cybersecurity operations), NOAA (cyber security center operations), and USCYBERCOM modernization work. Naval systems engineering encompasses ship design and engineering integration (two Naval Sea Systems Command contracts worth $284.5 million combined for Seaport-NXG task orders), combat systems test and evaluation, advanced electronics systems modification and sustainment, and underway replenishment engineering design. Naval aviation support includes training and integration (P-8A Poseidon and F/A-18 weaponeering support at Naval Air Warfare Center), weapons system validation and accreditation, and program management for anti-radiation missile and next-generation jammer programs. The vendor also delivers applications modernization and cloud migration support (evidenced by GSA Office of the CIO work, USCYBERCOM modernization at Air Force Life Cycle Management Center), program and project management automation (Army Corps of Engineers PROMIS application support), medical information platform sustainment (Defense Health Agency Theater Medical Information Program orders), and IT equipment procurement through Air Education and Training Command cybersecurity blanket purchase agreements.

The parent company, ManTech International Corporation, is based in Herndon, Virginia, and operates 16 named subsidiaries including Gryphon Technologies (systems engineering), Gryphon Aerospace (defense aviation), Gryphon Marine (naval systems), Gryphon Livermore Laboratories (advanced technology), Tapestry Technologies (IT consulting), and Technical and Management Assistance Corporation (TMAC). ManTech Advanced Systems International, Inc. functions as the primary vehicle for the federal contract footprint documented in the source, though other subsidiaries carry distinct awards in specialized domains (aerospace, marine engineering, advanced research). The parent company's federal contract presence spans the entire range of governmentwide vehicles and agency-specific IDIQs, making the ManTech portfolio one of the largest on record for IT, engineering, and mission-critical services across defense and civilian agencies.