James Foster

Chief Executive Officer at

eSentire, Inc.

47 year

27 connections

Technology Services

Consumer Services

Government

Profile

James C.
Foster was the founder of Optiv Federal, Inc., founded in 2006, where the title held was President from 2011 to 2012.
Mr. Foster was the founder of ZeroFox, Inc., founded in 2013, holding the title of Chairman & Chief Executive Officer.
Mr. Foster was the founder of ZeroFox Holdings, Inc., founded in 2013, with the title of Director in 2024.
Current jobs include Chief Executive Officer at HackerUSA, Inc. starting in 2025, Chief Executive Officer at eSentire, Inc. starting in 2026, and Operating Partner at NIGHTDRAGON MANAGEMENT COMPANY starting in 2024.
Former jobs include Deputy Director-Global Security at Computer Sciences Corp.
from 2010 to 2013, Principal at Foundstone, Inc. in 2010, Fellow at the University of Pennsylvania, Principal at Booz Allen Hamilton, Inc., Contributing Editor at Information Security Magazine, Chief Scientist & Advisor at Guardent, Inc. from 2010 to 2013, Senior VP-Strategic Business Development at Accuvant, Inc. from 2011 to 2012, and Specialist-Security Research at the US Department of the Navy (District of Columbia).
Education includes undergraduate studies at Capitol Technology University.

James Foster active positions

Companies	Position	Start
NIGHTDRAGON MANAGEMENT COMPANY NIGHTDRAGON MANAGEMENT COMPANY Investment ManagersFinance Nightdragon Management Comapny invests in cybersecurity companies located in the United States. The firm focuses on broad range of sectors and industries. It firm provides financing for early and growth stage capital requirements. It acts as a lead investor and also makes co-investments.	Private Equity Investor	01/11/2024
HackerUSA, Inc. HackerUSA, Inc. Packaged SoftwareTechnology Services Develops an AI-powered cyber workforce platform	Chief Executive Officer	01/08/2025
eSentire, Inc. eSentire, Inc. Packaged SoftwareTechnology Services Provides AI based managed detection, response, data and application protection services	Chief Executive Officer	19/03/2026

All active positions of James Foster

Former positions of James Foster

Companies	Position	End
Accuvant, Inc. Accuvant, Inc. Miscellaneous Commercial ServicesCommercial Services Provides security consulting services	Corporate Officer/Principal	01/01/2012
ZEROFOX HOLDINGS, INC.	Chief Executive Officer	13/05/2024
Booz Allen Hamilton, Inc. Booz Allen Hamilton, Inc. Packaged SoftwareTechnology Services Builds advanced technology to fast-track results for government—boosting efficiencies, saving money and safeguarding	Corporate Officer/Principal	-
ZeroFox, Inc. ZeroFox, Inc. Packaged SoftwareTechnology Services Develops cybersecurity and digital risk protection software platform	Chief Executive Officer	-
Optiv Federal, Inc. Optiv Federal, Inc. Information Technology ServicesTechnology Services Provides cyber security solutions	Chief Executive Officer	-

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Linked companies

Private companies	16
Computer Sciences Corp. Computer Sciences Corp. Information Technology ServicesTechnology Services Provides IT services	Technology Services
Foundstone, Inc. Foundstone, Inc. Packaged SoftwareTechnology Services Provides software services	Technology Services
ZeroFox, Inc. ZeroFox, Inc. Packaged SoftwareTechnology Services Develops cybersecurity and digital risk protection software platform	Technology Services
University of Pennsylvania University of Pennsylvania Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Booz Allen Hamilton, Inc. Booz Allen Hamilton, Inc. Packaged SoftwareTechnology Services Builds advanced technology to fast-track results for government—boosting efficiencies, saving money and safeguarding	Technology Services
Information Security Magazine Information Security Magazine Publishing: Books/MagazinesConsumer Services Publishes a IT security magazine	Consumer Services
Guardent, Inc. Guardent, Inc. Packaged SoftwareTechnology Services Develops managed security software systems	Technology Services
Capitol Technology University Capitol Technology University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Northeastern University Northeastern University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
US Department of the Navy (District of Columbia) US Department of the Navy (District of Columbia) SovereignGovernment Naval service branch of the government	Government
Accuvant, Inc. Accuvant, Inc. Miscellaneous Commercial ServicesCommercial Services Provides security consulting services	Commercial Services
Optiv Federal, Inc. Optiv Federal, Inc. Information Technology ServicesTechnology Services Provides cyber security solutions	Technology Services
eSentire, Inc. eSentire, Inc. Packaged SoftwareTechnology Services Provides AI based managed detection, response, data and application protection services	Technology Services
NIGHTDRAGON MANAGEMENT COMPANY NIGHTDRAGON MANAGEMENT COMPANY Investment ManagersFinance Nightdragon Management Comapny invests in cybersecurity companies located in the United States. The firm focuses on broad range of sectors and industries. It firm provides financing for early and growth stage capital requirements. It acts as a lead investor and also makes co-investments.	Finance
HackerUSA, Inc. HackerUSA, Inc. Packaged SoftwareTechnology Services Develops an AI-powered cyber workforce platform	Technology Services
ZeroFox Holdings, Inc. ZeroFox Holdings, Inc. Packaged SoftwareTechnology Services Develops AI based cybersecurity software platform	Technology Services