Parsons Acquires OGSystems

Parsons Acquires Altamira Technologies Corporation

January 16, 2026

Aerospace & Defense

Parsons Corporation has acquired Altamira Technologies Corporation in a cash transaction of $330 million with an additional $45 million earn-out, valuing the deal at up to $375 million. The acquisition brings Altamira’s ~600 engineering and cleared workforce and advanced capabilities in signals intelligence, AI/ML analytics, missile warning and space mission support into Parsons’ Defense & Intelligence business to expand the company’s SIGINT, cyber and space offerings for Department of Defense and Intelligence Community customers.

Parsons Corporation Acquires BlackSignal Technologies

July 30, 2024

Cybersecurity

Parsons Corporation has entered into a definitive agreement to acquire BlackSignal Technologies, LLC from Razor's Edge Management, LLC for $200 million in cash. The deal — expected to close in August 2024 — will integrate BlackSignal into Parsons' Defense & Intelligence business unit and expand Parsons' electronic warfare, cyber, and AI/ML-enabled signal processing capabilities for Department of Defense and Intelligence Community customers.

Booz Allen Hamilton Acquires PAR Government Systems Corporation

June 10, 2024

Aerospace & Defense

Booz Allen Hamilton has acquired PAR Government Systems Corporation (PGSC), a wholly owned subsidiary of PAR Technology Corporation. The acquisition brings PGSC’s edge technologies and cleared technical workforce into Booz Allen’s defense portfolio to enhance situational awareness, ISR, and counter-uncrewed aerial systems capabilities for Department of Defense and other government customers.

Parsons Corporation Acquires Sealing Technologies, Inc.

September 13, 2023

Cybersecurity

Parsons Corporation acquired Columbia, Maryland-based Sealing Technologies, Inc. in a transaction valued at up to $200 million (including $175 million cash at closing and a $25 million earn-out). The acquisition expands Parsons' defensive cyber, AI/ML, edge computing, and critical infrastructure protection capabilities and brings nearly 150 SealingTech employees (70% with security clearances) into Parsons' Defense & Intelligence unit.

Parsons Corporation Acquires BlackHorse Solutions, Inc.

July 6, 2021

Aerospace & Defense

Parsons Corporation completed the acquisition of BlackHorse Solutions, Inc. in a transaction valued at $203 million. The deal adds nearly 200 employees and expands Parsons' capabilities and product offerings in cyber, electronic warfare, AI/ML, and information dominance for Department of Defense and Intelligence Community customers.

Parsons Corporation Acquires Braxton Science & Technology Group

November 19, 2020

Aerospace & Defense

Parsons Corporation completed the acquisition of Braxton Science & Technology Group for $300 million (reported as $258 million less the tax asset). Braxton, headquartered in Colorado Springs, Colorado, brings more than 370 employees and expands Parsons' capabilities in satellite operations, ground system automation, flight dynamics, and space cyber for defense and intelligence customers.