Mantech Advanced Systems International, Inc.
Mantech Advanced Systems International, Inc. is a subsidiary of ManTech International Corporation, providing a wide range of technology solutions and services to support national security missions across the U.S. government. The company specializes in areas such as systems engineering, software development, cybersecurity, and program management for defense, intelligence, and federal civilian agencies. As a large business prime contractor, Mantech holds numerous contract vehicles and has received substantial federal contract awards to deliver specialized expertise and technical capabilities to government customers. The company's work spans critical domains including IT modernization, enterprise IT, mission software systems, analytics, defense, and federal civilian solutions.
Through its prime and subcontract awards, Mantech has provided diverse services including engineering support for naval aviation programs, IT operations and maintenance for transportation security systems, cybersecurity monitoring for the Department of Justice, and data readiness services for defense artificial intelligence initiatives. The company has secured major contracts with agencies such as the Navy, Air Force, Defense Health Agency, and Department of Homeland Security. Notable awards include a $622 million task order for training-related services from the Army, a $261 million order for technical support to Air Force combat and spectrum warfare operations, and multiple task orders exceeding $10 million each for IT support to agencies like the Consumer Financial Protection Bureau. Mantech frequently partners with other large contractors like Booz Allen Hamilton and SAIC, as well as small businesses, to deliver comprehensive solutions. These awards typically do not have set-aside designations, as Mantech competes as a large business.
Mantech's involvement in federal grant programs appears more limited, with most activity occurring as a subrecipient. The company has provided natural resource management and conservation services at Vandenberg Air Force Base through subgrants from Colorado State University. This work included tasks such as threatened and endangered species management, habitat restoration, invasive species control, and wetland monitoring in support of the base's Integrated Natural Resources Management Plan. Mantech's role involved making programmatic decisions and recommendations based on their expertise with the base's ecosystems, coordinating directly with Air Force personnel, and adhering to federal regulations governing species and habitat management on military lands. The company has also provided software and system maintenance for civil registration programs at the state level, supporting public health initiatives funded by federal grants.
Mantech holds several significant Indefinite Delivery Vehicles (IDVs) that enable it to compete for and receive task orders across multiple agencies. These include a $900 million IDIQ with the Air Force Life Cycle Management Center for engineering and simulation services, a $487 million Blanket Purchase Agreement with the Department of Justice for IT support services, and a $250 million contract with the Naval Air Warfare Center for rapid prototyping and systems integration. The company is also a holder of government-wide acquisition contracts like Alliant II and ASTRO, allowing it to provide IT and engineering services across federal agencies. Additionally, Mantech was awarded positions on the $60.7 billion VA T4NG2 contract for health IT solutions and a $4.5 billion Air Force contract for security services supporting special access programs. These vehicles demonstrate Mantech's broad capabilities and strong positioning to support diverse government requirements in technology, engineering, and mission support services.
JY2BDT2K58Z6 541512
Not listed 2251 Corporate Park Dr, Herndon, VA 20171, USA
4/11/02 11/6/25 M.c. Dean, Inc.
M.c. Dean, Inc. is a company that specializes in designing, building, operating, and maintaining cyber physical solutions for mission critical facilities, secure environments, complex infrastructure, and global enterprises. The company provides a range of services including engineering development, IT services, security system installation, and facilities maintenance.
Through past federal contract awards, M.c. Dean, Inc. has provided various security and facilities-related goods and services as a prime and subcontractor. These include intrusion detection systems, closed circuit television systems, access control systems, fire protection services, maintenance and installation services, command/control/communications/computer systems, and more. Major funding agencies for awards have included the Departments of Defense, Army, Air Force, Navy, Transportation, Justice, and Homeland Security. Several contracts were issued under GSA schedule vehicles or IDIQ contracts like Power Systems Installation Services. M.c. Dean has partnered with subcontractors such as Bosch Security Systems, Defenshield Inc., and Sterling Computers Corporation to fulfill contract requirements. Some awards were set aside for small businesses while others utilized full and open competition procedures.
M.c. Dean holds several federal indefinite delivery vehicles to provide services globally. These include a $25 million blanket purchase agreement for fire protection systems for NIH facilities, a $45 million indefinite delivery contract for Army construction surveillance services in Europe, a $61 million contract for Pentagon electrical maintenance, and a $675 million electronic security systems deal under the Army's ESS VII vehicle. Task orders under these IDVs fund critical facility infrastructure sustainment, security system refresh efforts, IT services, and maintenance support across DOD and civilian agency installations.
RD55NEXJ5EW4 238210
Not listed 1765 Greensboro Station Pl, McLean, VA 22102, USA
2/5/02 7/16/25 Scientific Research Corporation
Scientific Research Corporation, doing business as Scientific Research Corp, is an advanced engineering company that provides a wide range of solutions to the defense, federal, global, and cyber/intelligence markets. The company specializes in delivering innovative technology products and services across various domains, including airborne intelligence, radar systems, electronic warfare, command and control, communications, cyber defense, and naval systems integration. As a prime contractor and subcontractor on numerous federal contracts, Scientific Research Corporation offers engineering services, technical support, research and development, system integration, equipment procurement, software development, staff augmentation, and other professional services to government agencies.
Through its federal contract awards, Scientific Research Corporation has provided diverse goods and services to multiple agencies. For the Department of Defense, the company has delivered aircrew electronic warfare tactical training range services, crash survivable recorders for T-6 aircraft, and command, control, communications, computers, and intelligence (C4I) integration for new Navy vessel construction. The company has also supported the Naval Information Warfare Systems Command with engineering and technical services for various ship programs, including FFG 62, CVN 80, and T-AO class vessels. Scientific Research Corporation has contributed to cybersecurity efforts for the Marine Corps and provided support for the Air Force's Distributed Common Ground Station. The company has engaged in projects for the Department of State, offering professional engineering services for new embassy compounds. Notable subcontracting partners include General Dynamics Information Technology, ManTech Advanced Systems, and Valkyrie Enterprises. While most contracts do not carry set-aside designations, Scientific Research Corporation has collaborated with small businesses, including service-disabled veteran-owned and women-owned firms.
Scientific Research Corporation holds several significant Indefinite Delivery Vehicles (IDVs) that showcase its broad capabilities. The company was awarded a $249.96 million single-award IDV by the Naval Air Warfare Center to provide aircrew electronic warfare tactical training range services through 2027. Another major vehicle is the $536.73 million multiple-award IDV for New Ship Construction C4I Integration, supporting the Navy's program for integrating command, control, communications, computers, and intelligence capabilities on new ship construction projects. Scientific Research Corporation also holds multiple ASTRO IDVs, each valued at $3.5 million, awarded by the General Services Administration. These ASTRO vehicles enable the company to provide a comprehensive suite of platform-related services to various federal agencies, including the Department of Defense, Air Force, Navy, and Department of Homeland Security. Additionally, the company was awarded a $93.49 million single-award IDV by the Air Force to support the T-6 Texan II aircraft crash survivable recorder program, demonstrating its expertise in aircraft safety and data recording systems.
FAK7LNGRNAN5 541330
Not listed 2300 Windy Ridge Pkwy SE #400s, Atlanta, GA 30339, USA
1/14/02 7/3/25 By Light Professional It Services LLC
By Light Professional IT Services LLC is a for-profit limited liability company based in McLean, Virginia that provides comprehensive information technology solutions and specialized technical services to federal government agencies. The company offers a wide range of capabilities including systems engineering, network infrastructure design and implementation, cybersecurity, software development, and communications hardware and infrastructure support. As both a prime contractor and subcontractor, By Light delivers IT goods and services across the Department of Defense, Department of Veterans Affairs, Department of State, and other civilian agencies. The company is ISO 9001, 20000-1, and 27001 registered, demonstrating its commitment to quality management and information security practices.
Through its prime contract awards, By Light has provided services such as high-frequency radio equipment and installation, flight simulator upgrades, cloud-based internet isolation solutions, and IT infrastructure support. Major funding agencies include the Department of Veterans Affairs, Defense Information Systems Agency, Army, Air Force, and Department of State. Notable projects include a $223 million contract with DISA for cloud-based internet isolation, a $138 million order from the VA for identity and access management services, and multiple awards for aviation training systems upgrades. By Light frequently partners with subcontractors like Booz Allen Hamilton, Lockheed Martin, and General Dynamics on large defense and civilian agency programs. The company has received both small business set-aside awards and unrestricted contract vehicles. As a subcontractor, By Light has supported prime contractors on efforts including professional IT services, cybersecurity, and communications systems maintenance for agencies such as the Navy, Air Force, and Defense Counterintelligence and Security Agency.
By Light holds several significant indefinite delivery/indefinite quantity (IDIQ) contract vehicles. These include a $900 million Army Modernization Priorities Multiple Award Contract for research, development, and rapid prototyping across mission areas like electronic warfare and cyber capabilities. The company also holds a $650 million Accelerating VA Innovation and Learning IDIQ to support healthcare innovation initiatives for the Department of Veterans Affairs. Other IDVs include a $218 million single-award contract for aviation training systems supporting Army special operations, a $73 million multiple-award vehicle for network infrastructure services with the Defense Logistics Agency, and a $41 million Navy contract for tactical training network upgrades. By Light's subsidiary, Cole Engineering Services Inc. (CESI), holds a $957 million single-award IDIQ for developing and sustaining the Army's Persistent Cyber Training Environment platform. These IDIQ vehicles allow By Light to compete for and receive task orders from various defense and civilian agencies for IT services, systems engineering, and specialized technical support.
NKKQE6FG4C28 541512
Not listed 8484 Westpark Dr #600, Tysons, VA 22102, USA
8/7/03 2/6/26 Parsons Government Services Inc.
Parsons Government Services Inc., doing business as Parsons, is a leading provider of professional and technical services to various U.S. federal government agencies. As a subsidiary of Parsons Corporation, the company specializes in delivering innovative solutions in areas such as national security, defense, and global infrastructure. Parsons leverages advanced technologies like artificial intelligence and machine learning to offer a wide range of services, including engineering, construction, program management, environmental remediation, cybersecurity, and software development. The company has established itself as a key partner for government agencies seeking expertise in complex technical and operational challenges, positioning itself as a digitally-enabled solutions provider.
Through its numerous prime and subcontract awards, Parsons Government Services has supported diverse missions across multiple federal agencies. Notable projects include developing a Predictive Combat Power Prototype for the Army, providing vulnerability assessment support for the Defense Threat Reduction Agency, and delivering systems engineering and integration services for the Space and Missile Systems Center. The company has also supported agencies like NASA, the Department of Homeland Security, and the Federal Emergency Management Agency in areas ranging from satellite operations to COVID-19 response efforts. Parsons' work spans various technical domains, including electronic warfare, biometrics, infrastructure modernization, and space systems development. Recent contract awards highlight the company's involvement in projects such as environmental remediation for the Army Corps of Engineers, construction management services for the Naval Facilities Engineering Command, and research support for the Office of Naval Research. These contracts demonstrate Parsons' versatility in meeting diverse government requirements across defense and civilian sectors.
Parsons Government Services holds several significant Indefinite Delivery Vehicles (IDVs) that facilitate the rapid acquisition of its services across the federal landscape. These include the $869 million Scientific, Technical, Engineering and Program Support Services (STEPSS) contract for the Army, which covers a wide range of research, development, and engineering services. The company also holds a $850 million Assessment, Exercise, and Modeling and Simulation Support (AEMSS) contract with the Defense Threat Reduction Agency, providing services such as vulnerability assessments and exercise planning. Additionally, Parsons has been awarded multiple ASTRO contracts for platform-related services, enabling various agencies to issue task orders for professional services ranging from research and development to systems integration. Other notable IDVs include contracts with the Air Force for architect-engineering services, the Army Corps of Engineers for environmental remediation, and the National Nuclear Security Administration for infrastructure modernization support. These vehicles allow Parsons to provide a broad spectrum of services across multiple federal agencies, showcasing its expertise in areas such as national security, defense, and critical infrastructure.
NMBCAG1JBKL7 541330
Not listed 5875 Trinity Pkwy #230, Centreville, VA 20120, USA
1/14/02 11/20/25