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 Aerospace

Chaos

Series C in 2025
Chaos Industries is a technology company dedicated to developing advanced solutions for defense and critical industries. The company specializes in detection and radar services, leveraging its innovative Coherent Distributed Networks (CDN) to improve sensing, detection, and communication capabilities across multiple platforms. By focusing on the needs of defense clients, Chaos Industries enhances product development and ensures the delivery of high-quality services tailored to the demands of the sector.

Apex - Spacecraft Manufacturing

Series C in 2025
Apex is a manufacturer of commercial orbital transportation services spacecraft satellite buses that are designed to provide an approach to space. The company specializes in a combination of software, vertical integration, and hardware for spacecraft manufacture, allowing space enterprises to execute their missions by communicating with and launching vehicles using spacecraft.

Northwood Space

Series A in 2025
Northwood Space is a hardware solution that dramatically increases the number of orbits and frequency bands available for satellite communications from the ground.

Epirus

Series D in 2025
Epirus, Inc. is a technology company based in Hawthorne, California, specializing in the design and development of advanced defense systems that utilize artificial intelligence and directed energy. Founded in 2018, the company focuses on creating solid-state, software-defined high-power microwave solutions aimed at countering unmanned aircraft systems and other asymmetric threats. Its flagship product, ELECTROMAGNETIC PULSE, serves as a counter-infrastructure solution that can simultaneously target multiple threats, effectively neutralizing drones and swarms. By integrating AI and machine learning with advanced electronics, Epirus enhances the detection and tracking of objects of interest, offering innovative capabilities in electronic warfare and power management for both defense and commercial sectors.

Epirus

Series C in 2022
Epirus, Inc. is a technology company based in Hawthorne, California, specializing in the design and development of advanced defense systems that utilize artificial intelligence and directed energy. Founded in 2018, the company focuses on creating solid-state, software-defined high-power microwave solutions aimed at countering unmanned aircraft systems and other asymmetric threats. Its flagship product, ELECTROMAGNETIC PULSE, serves as a counter-infrastructure solution that can simultaneously target multiple threats, effectively neutralizing drones and swarms. By integrating AI and machine learning with advanced electronics, Epirus enhances the detection and tracking of objects of interest, offering innovative capabilities in electronic warfare and power management for both defense and commercial sectors.
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