75. SENTEL - Black Enterprise


Climbing 15 places on the BE Industrial/Service list, SENTEL is the eighth largest black-owned company in Virginia. SENTEL is the flagship company of WC Holdings Inc.

The Alexandria-based company is an engineering and technology services firm that provides customers with high-end engineering products and solutions to protect lives and fulfill their missions. Services include chemical and biological agent defense; software development; electromagnetic engineering; sensor integration, testing and evaluation. Clients include Department of Defense, FAA, NASA, and the U.S. Air Force among others.

In 2008, the company had revenues of $57 million.