Bonnie Cook

Bonnie Cook is ManTech’s Executive Vice President and Chief Performance Officer. She is a dedicated and strategic leader who brings her years of business expertise to optimize the delivery of effective, efficient and enabling business services to support ManTech’s growth and market differentiation and most importantly, to solve our customer’s hardest challenges. From day-to-day resource management to long-term strategic planning, Ms. Cook leaves no detail to chance as she strives for business service excellence in Business Finance, Human Resources, Talent Acquisition, Contracts, Delivery and Real estate operations for all ManTech’s business sectors.

Ms. Cook joined ManTech more than 35 years ago and has held positions of increasing responsibility and leadership throughout her tenure. Ms. Cook has supported numerous due diligence efforts and the business integration of newly acquired entities, in addition to, serving on joint venture board positions and establishing international business operations for ManTech in Turkey, Colombia, Germany, Panama, Australia and the UK.

Before joining ManTech, Ms. Cook held controllerships in government services organizations.

Ms. Cook holds a Bachelor of Science in business management/industrial relations from American University.

“ManTech’s core values of patriotism and integrity are embodied in our leadership and employees, and have been unwavering since the beginning. If you are a ManTech employee, you have the rare opportunity to cultivate these values.”


Ms. Cook is a member of a number of industry organizations and associations, including AFCEA, NCMA, PSC, NDIA and the ACC Executive Forum.


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