C5 Capital is a specialist venture capital firm that invests in mission-driven founders building companies focused on cybersecurity, space, and energy security. We are committed to building a safer future by providing capital and operational expertise to innovative early-stage and growth-stage businesses. Our investment strategy leverages deep domain expertise, an extensive global network, and a hands-on approach to help our portfolio companies scale and achieve market leadership. C5 Capital aims to generate strong financial returns while contributing positively to global security and resilience.
Serves as the central hub for global operations, investment strategy, portfolio management, and investor relations.
Located in a prestigious and accessible area of London, facilitating engagement with global financial institutions and technology leaders. The specific office features are private but are designed to foster collaboration and strategic decision-making.
The work culture at C5 Capital is characterized by a high-energy, analytical, and collaborative environment. It fosters intellectual curiosity, deep domain expertise, and a commitment to supporting portfolio companies in achieving their full potential.
London's status as a leading global financial center and a burgeoning tech ecosystem makes it an ideal location for C5 Capital to connect with investors, talent, and innovative companies. Its proximity to European markets is also key.
C5 Capital operates globally with key offices in London, Washington D.C., and Luxembourg. This strategic positioning enables the firm to effectively source investment opportunities, support its portfolio companies' international expansion, and engage with key stakeholders across North America, Europe, and beyond in its core sectors of cybersecurity, space, and energy security.
70 Pall Mall, St. James's
London
England
United Kingdom
Address: 1775 Pennsylvania Avenue NW, Suite 800, Washington, D.C. 20006, USA
To source and support US-based portfolio companies, engage with US policy makers, and leverage the strong American tech and defense innovation landscape.
Address: 2 Rue du Fort Bourbon, L-1249 Luxembourg
Strategic base for European operations, offering access to EU markets, regulatory insights, and a favorable environment for fund management and investment in European tech companies.
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As of April 2025, C5 Capital' leadership includes:
C5 Capital has been backed by several prominent investors over the years, including:
C5 Capital has recently strengthened its Advisory Board. While core partnership changes are not frequently publicized, strategic additions to advisory roles indicate a focus on deepening expertise. For example, Christopher Wray joined the Advisory Board in early 2024.
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C5 Capital likely uses standard professional email formats for its employees. The most common formats usually involve combinations of first name, last name, or initials before the '@c5capital.com' domain. For example, 'first.last' or 'firstinitiallast'.
[firstinitial][last]@c5capital.com
Format
apienaar@c5capital.com
Example
70%
Success rate
C5 Capital News • 2024-02-20
C5 Capital announced the appointment of Christopher Wray, former Director of the Federal Bureau of Investigation (FBI), to its Advisory Board. Mr. Wray brings unparalleled experience in national security, cybersecurity, and counterintelligence, which will be invaluable to C5's mission of investing in a secure future....more
Palantir Technologies Inc. • 2023-11-15
C5 Capital and Palantir Technologies Inc. announced a strategic partnership to accelerate the adoption of artificial intelligence (AI) across businesses and public sector organizations in Europe. The collaboration will leverage Palantir's AI Platform (AIP) and C5 Capital's deep expertise in venture capital and security-focused investments to drive innovation and growth....more
PR Newswire • 2023-05-17
C5 Capital announced it led an $18 million Series A funding round for XONA Systems, a company specializing in frictionless user access platforms for critical infrastructure. This investment aims to bolster XONA's capabilities in protecting operational technology (OT) environments from escalating cyber threats....more
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