![James Foster](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
James Foster
Founder at
ZEROFOX HOLDINGS, INC.
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 is the founder of ZeroFox Holdings, Inc., founded in 2022, currently serving as Executive Chairman since 2024.
Mr. Foster was the founder of ZeroFox, Inc., founded in 2013, where the title held was Chairman & Chief Executive Officer.
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 and an MBA from Northeastern University.
James Foster active positions
| Companies | Position | Start |
|---|---|---|
| ZEROFOX HOLDINGS, INC. | Founder | 03/08/2022 |
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 |
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 |
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 | - |
University of Pennsylvania
 University of Pennsylvania Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | - |
Training of James Foster
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
4
1st degree connections
16
1st degree companies
Male
Female
Members of the board
Executives
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 |
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