Subsidiaries of the Company
1st Tier
- ManTech Command Control Systems Corporation, a Virginia corporation
- ManTech MSM Security Services, Inc., a Maryland corporation
- ManTech CTX Corporation, a Virginia corporation
- ManTech Integrated Data Systems Corporation, a Virginia corporation
- ManTech Aegis Research Corporation, a Delaware corporation
- ManTech Solutions & Technologies Corporation, a Virginia corporation
- ManTech Systems Engineering Corporation, a Virginia corporation
- ManTech Environmental Corporation, a Virginia corporation
- Science, Engineering and Analysis, Incorporated, a Virginia corporation
- ManTech Support Technology, Inc., a Virginia corporation
- NSI Technology Services Corporation, a California corporation
- ManTech Advanced Systems International, Inc., a Virginia corporation
- ManTech Telecommunications and Information Systems Corporation, a Delaware corporation
- ManTech Europe Systems Corporation, a Virginia corporation
- ManTech Australia Pty. Ltd., a corporation organized and existing under the laws of the Commonwealth of Australia
- ManTech Australia International, Inc., a Virginia corporation
- ManTech U.K. Systems Corporation, a Virginia corporation
- ManTech Advanced Development Group, Inc., a California corporation
2nd Tier
- Technology Management Corporation, a Virginia corporation
- ManTech Solutions Corporation, a Virginia corporation
- ManTech Systems Corporation, a New Jersey corporation
- ManTech Systems Solutions Corporation, a Virginia corporation
- ManTech Environmental Technology, Inc., a Virginia corporation
- MASI U.K. Limited, a corporation organized and existing under the laws of the United Kingdom
- Field Support Services Muhendislik Ltd. Sti., a corporation organized and existing under the laws of Turkey
- Redesmundial, S.A., a corporation organized and existing under the laws of the Republic of Panama
- Praxa Limited, a corporation organized and existing under the laws of the New Zealand
- ManTech Europe, Ltd., a corporation organized and existing under the laws of the United Kingdom
- ManTech Test Systems, Inc., a Virginia corporation
- ManTech Enterprise Solutions, Inc., a Virginia corporation
- ManTech Investigative Services, Inc., a Virginia corporation
3rd Tier
- ManTech Environmental Research Services Corp., a Virginia corporation
- NSI Environmental Solutions, Inc., a Virginia corporation
- ManTech Advanced Recognition Limited, a corporation organized and existing under the laws of the United Kingdom
- ManTech Database Services Europe Limited, a corporation organized and existing under the laws of the United Kingdom