Carlyle to Acquire ManTech International in $4.2 Billion All-Cash Deal

Carlyle Acquires Secturion Systems

July 26, 2026

Cybersecurity

Carlyle acquired Secturion Systems, a provider of high-speed, NSA-certified hardware encryption solutions based in Centerville, Utah. The transaction represents the first investment by Carlyle’s dedicated middle-market Aerospace, Defense & Government and Industrials platform.

ManTech International Acquires Technical and Management Assistance Corporation (TMAC)

January 3, 2022

Data & Analytics

ManTech International Corporation has acquired Technical and Management Assistance Corporation (TMAC), a Columbia, Maryland–based provider of advanced data engineering, systems engineering and analytics solutions to the U.S. Intelligence Community. The transaction expands ManTech's analytics and data engineering capabilities for intelligence and other federal customers and brings TMAC's team into ManTech's existing mission-focused services portfolio.

The Carlyle Group Acquires IST Research and Two Six Labs to Form Two Six Technologies

February 1, 2021

Cybersecurity

An affiliate of The Carlyle Group acquired IST Research and Two Six Labs and combined them into Two Six Technologies, a high-growth government technology platform focused on cybersecurity, data science and R&D for national security customers. The combined business will be led by CEO Joe Logue and serve customers across the Intelligence Community, Department of Defense and other U.S. national security customers, with a global operational footprint and sole-source contract vehicles.

The Carlyle Group Acquires Acrotec Group from Castik Capital

December 7, 2020

Manufacturing

The Carlyle Group has agreed to acquire the Acrotec Group, a Swiss precision engineering and contract manufacturer, from Castik Capital in a deal expected to close in Q1 2021. Carlyle will partner with Acrotec's management to accelerate growth, expand the company's MedTech capabilities and pursue geographic expansion in Europe and the United States.

ManTech International Acquires Kforce Government Solutions

April 1, 2019

Government & Public Sector

ManTech International Corporation completed the acquisition of Kforce Government Solutions (KGS) for $115 million in cash. The deal expands ManTech's presence in the federal health market — including work for the Department of Veterans Affairs — and brings KGS's employees and capabilities into ManTech's federal services portfolio.

The Carlyle Group Acquires SS&C Technologies, Inc.

November 22, 2005

Software

Sunshine Acquisition Corporation, an acquisition vehicle affiliated with The Carlyle Group, completed the cash acquisition of SS&C Technologies, Inc., taking the company private for approximately $942 million ($37.25 per share). The deal transfers SS&C from a NASDAQ-listed company to private ownership under Carlyle, intended to support SS&C’s continued growth of its financial technology software and services.