StepStone Group

StepStone Group is a U.S.-based asset manager established in 2007, specializing in investment services for institutional investors. The firm focuses on delivering superior risk-adjusted returns in private equity through a diversified approach that includes fund investments, co-investments, and secondary purchases. With a global presence supported by over 350 professionals across 16 offices in 11 countries, StepStone employs a research-driven investment strategy, utilizing dedicated sector teams to navigate the complexities of private markets. Additionally, StepStone Real Estate offers tailored exposure to private real estate, further enhancing the firm's comprehensive investment offerings.

John Avirett

Partner

Deric Emry

Senior Managing Director

Anthony Giambrone

Managing Director

Andy Jones

Senior Managing Director

Seyonne Kang

Partner

John Kim

Principal

Jim Lim

Partner

Adair Newhall

Partner

Ashton Newhall

Partner

Hunter Somerville

Partner

Past deals in Penetration Testing

Cyberhaven

Series D in 2025
Cyberhaven, Inc., established in 2014 and headquartered in Boston, Massachusetts, specializes in enterprise cybersecurity. The company's core offering is a Data Detection and Response platform designed to safeguard intellectual property from theft and insider threats. This platform assesses internal actions across an organization, identifying risky behaviors before they result in a breach. It provides full-context data tracing to minimize false positives and negatives, and accelerates incident response investigations, enabling clients to protect their data efficiently. Cyberhaven's technology covers the protection of sensitive documents across various platforms, including Office 365, on-premise SharePoint, and Google Apps. The company operates globally with additional offices in Palo Alto, California; Lausanne, Switzerland; and Kiev, Ukraine.

Protect AI

Series B in 2024
Protect AI is a cybersecurity company focused on safeguarding machine learning and artificial intelligence systems from security threats. The company offers a platform that adheres to zero trust principles, ensuring that only secure and compliant AI models are utilized. Its technology continuously scans both third-party and in-house models for potential security vulnerabilities before deployment. Additionally, Protect AI provides detailed profiles of various threat categories, enabling organizations to enhance their security posture. With its comprehensive AI Security Posture Management capabilities, the company delivers end-to-end visibility and control, helping organizations maintain the integrity and safety of their AI applications throughout the machine learning lifecycle.

Inspectiv

Series A in 2022
Inspectiv is a business specialising in application security testing. It offers an innovative platform that combines manual and automated testing methods to help clients identify and rectify vulnerabilities in their applications before potential threats can exploit them. The platform provides actionable insights, enabling teams to prioritise risks effectively and optimise remediation efforts for secure application management at scale.
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