Gibb Witham

President at Hack the Box

📍 New York, New York, United States🔄 Updated September 2026💼 12 investments📅 15 years investing🗓 Last invested Jan 2025𝕏 @upgrade_to_unlock
VC🌍 United States
12
Total investments
7
Early stage
3
Mid stage
1
Late stage
15y
Years active

Portfolio

12 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Series B Investor, Board
2025
Mimica shows enterprises where to streamline, standardize, and automate processes across the entire organization — with zero manual effort, and in as little as two weeks. We answer the most important questions in a business: How are our people spending their time? How do we make these processes more efficient? Where’s the best place to start improving or automating? Here’s how we do it: Mimica’s AI-powered task mining observes employee actions across the desktop and categorizes them into detailed process maps. Mimica’s process intelligence highlights inefficiencies, prioritizes improvements based on ROI, recommends the optimal technology for automation (RPA, intelligent document processing, GenAI), and provides a blueprint for building new automations. Mimica transforms how work gets done across the enterprise, so you can maximize workforce productivity, cut costs, and drive operational excellence. Get started at Mimica.ai
Series A Investor, Board
2025
MIND is on a mission to help organizations thrive in a digital world by protecting their most sensitive information. MIND is the first AI-native data security platform that puts data loss prevention (DLP) and insider risk management (IRM) programs on autopilot to autonomously find sensitive data, fix data risk issues and stop data leaks at machine speed across SaaS applications, Gen AI tools, endpoints, on-premises file shares and email systems. Our goal is to help our customers achieve Stress-Free DLP. The platform leverages MIND AI, our multi-layer classification engine, to analyze billions of data events in real-time, deliver context-aware risk assessments, enable automated remediation actions and block data loss on endpoints. We enable businesses to mind what really matters—their most sensitive data. Founded and led by cybersecurity leaders and industry veterans, MIND is based out of Seattle, WA. For more information, contact us at info@mind.io.
Series A Investor, Board
Dec 2020
Hack The Box is the Cyber Performance Center with the mission to provide a human-first platform to create and maintain high-performing cybersecurity individuals and organizations. Hack The Box is the only platform that unites upskilling, workforce development, and the human focus in the cybersecurity industry, and it’s trusted by organizations worldwide for driving their teams to peak performance. Offering an all-in-one environment for continuous growth, assessment, and recruitment, Hack The Box provides solutions for all cybersecurity domains. Launched in 2017, Hack The Box brings together the largest global cybersecurity community of more than 3 million platform members. Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece. For more information, please visit hackthebox.com
Seed Investor, Board
2019
Achieve true cyber readiness with the leading blue team training for SOC teams. Assess, refine, and validate skills needed to defend your organization against current cybersecurity threats.
Seed Investor
Aug 2018
Secure Code Warrior is a secure coding platform that sets the standards that keep our digital world safe. We do this by providing the world’s leading agile learning platform that delivers the most effective secure coding solution for developers to learn, apply, and retain software security principles. More than 600 enterprises trust Secure Code Warrior to implement agile learning security programs and ensure the applications they release are free of vulnerabilities.
Series B Investor, Board Observer
May 2017
Karamba Security is a global software company that focuses on securing connected devices and embedded software with full solution for Product Security. Karamba Security is led by a team comprised of security experts, serial entrepreneurs and business savvy executives with a track record of multiple IPOs and M&As. For more details contact us at contact@karambasecurity.com
Seed Investor
Aug 2016
Security that makes sense and can be, dare we say, delightful. Were a secops provider that offers managed detection and response (MDR), remediation, phishing, and threat hunting. Our platform and people work together to make sense of your security signal—with your business in mind—to detect, understand, and fix issues fast. And be sure to subscribe to our blog for takes on the latest infosec trends, tech, attack vectors, along with tales from our SOC and so much more.
Series A Investor
Mar 2016
Elliptic is the leader in digital asset decisioning. We have built the most comprehensive platform with unrivalled uptime and scalability for efficiently extracting crypto data and intelligence with the greatest accuracy. The depth and breadth of our data and intelligence means exacting organizations choose Elliptic for their compliance, risk management, intelligence operations and blockchain infrastructure needs.
Series A Investor, Board Observer
Jun 2014
HUMAN (formerly White Ops) is a cybersecurity company that protects organizations by disrupting bot attacks, digital fraud and abuse. We leverage modern defense to disrupt the economics of cybercrime by increasing the cost to cybercriminals while simultaneously reducing the cost of collective defense. Today, we verify the humanity of more than 20 trillion digital interactions per week across advertising, marketing, e-commerce, government, education and enterprise security, putting us in a position to win against cybercriminals.
Seed Investor (IPO, NASDAQ: TWST), Board Observer
Jul 2013
Twist Bioscience is a synthetic biology company based in South San Francisco, California. The company has developed a proprietary silicon-based manufacturing process for the production of synthetic DNA. Twist Bioscience serves Life Science researchers who are changing the world for the better. Coming from diverse fields of medicine, agriculture, and industrial chemicals, scientists use our synthetic genes, oligo pools, biopharma services, and NGS target enrichment to better lives and improve the sustainability of the planet. Twist Bioscience is uniquely positioned to help accelerate these efforts by providing precision at a scale that is otherwise unavailable. Our technology overcomes inefficiencies and enables cost-effective, rapid, precise, high-throughput DNA synthesis and sequencing. We offer both the quality and quantity researchers need now to rapidly realize opportunities ahead. Twitter @TwistBioscience Facebook facebook.com/TwistBioscience YouTube youtube.com/TwistBioscience #WeMakeDNA
Seed Investor (IPO, NASDAQ:TXG), Board Observer
2012
Cells are the basic unit of life. They power everything we do, and unlocking their secrets is the key to advancing our knowledge of every facet of biology, from development to disease. Our single cell, spatial, and in situ tools enable researchers to answer pressing questions about cells and their functional contributions to oncology, immunology, neuroscience, and much more—as evidenced by more than 5,500 publications citing our technology. We are dedicated to building the best products, delivering the best customer experience, and creating the best team to fuel new scientific discovery, no matter how challenging. And we won’t stop until all of the cells’ secrets are revealed.
Early Stage Investor
May 2011
Paladin Capital Group is a leading global investor that supports and grows the world’s most innovative companies through venture investment, expansion, and growth capital. We are headquartered in Washington, DC, with offices in London, Luxembourg, New York City, and Silicon Valley. We seek out diverse investment opportunities across the US and worldwide. Paladin is a leader in investing in technologies, products, and services focused on dual use in both commercial and governmental markets with a strong value-add culture. Paladin Cyber Fund: Our most recent fund focuses on Digital Infrastructure Resilience, investing globally in advanced technologies and solutions which enable, monitor, manage, and defend critical infrastructure that is dependent on cyber space. The Fund is actively investing and has closed eleven investments.
Experience · 14 entries
All (14)
Investments (12)
Board (4)
2026
Venture Partner
Apr 2026
OUP (Osage University Partners) is a venture capital firm that invests in breakthrough start-ups emerging from the world’s leading research labs and innovation ecosystems. We leverage our global network of 150+ university partners as well as deep relationships with founders, entrepreneurs, and industry to source and support the translation of cutting-edge research into transformative companies with impact. Founded in 2009 and headquartered in Philadelphia, OUP manages over $800 million and has invested in more than 150 life science and technology start-ups. For more information, visit oup.vc.
2025
Series B Investor, Board
2025
Mimica shows enterprises where to streamline, standardize, and automate processes across the entire organization — with zero manual effort, and in as little as two weeks. We answer the most important questions in a business: How are our people spending their time? How do we make these processes more efficient? Where’s the best place to start improving or automating? Here’s how we do it: Mimica’s AI-powered task mining observes employee actions across the desktop and categorizes them into detailed process maps. Mimica’s process intelligence highlights inefficiencies, prioritizes improvements based on ROI, recommends the optimal technology for automation (RPA, intelligent document processing, GenAI), and provides a blueprint for building new automations. Mimica transforms how work gets done across the enterprise, so you can maximize workforce productivity, cut costs, and drive operational excellence. Get started at Mimica.ai
Series A Investor, Board
2025
MIND is on a mission to help organizations thrive in a digital world by protecting their most sensitive information. MIND is the first AI-native data security platform that puts data loss prevention (DLP) and insider risk management (IRM) programs on autopilot to autonomously find sensitive data, fix data risk issues and stop data leaks at machine speed across SaaS applications, Gen AI tools, endpoints, on-premises file shares and email systems. Our goal is to help our customers achieve Stress-Free DLP. The platform leverages MIND AI, our multi-layer classification engine, to analyze billions of data events in real-time, deliver context-aware risk assessments, enable automated remediation actions and block data loss on endpoints. We enable businesses to mind what really matters—their most sensitive data. Founded and led by cybersecurity leaders and industry veterans, MIND is based out of Seattle, WA. For more information, contact us at info@mind.io.
2020
Series A Investor, Board
Dec 2020
Hack The Box is the Cyber Performance Center with the mission to provide a human-first platform to create and maintain high-performing cybersecurity individuals and organizations. Hack The Box is the only platform that unites upskilling, workforce development, and the human focus in the cybersecurity industry, and it’s trusted by organizations worldwide for driving their teams to peak performance. Offering an all-in-one environment for continuous growth, assessment, and recruitment, Hack The Box provides solutions for all cybersecurity domains. Launched in 2017, Hack The Box brings together the largest global cybersecurity community of more than 3 million platform members. Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece. For more information, please visit hackthebox.com
2019
Seed Investor, Board
2019
Achieve true cyber readiness with the leading blue team training for SOC teams. Assess, refine, and validate skills needed to defend your organization against current cybersecurity threats.
Show all 14 entries ↓
Investment activity
2011–2025 · 12 investments
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