Expeditions Fund

Dr Mikolaj Firlej and Stanislaw Kastory serve as the firm's co-founders and General Partners, while Samuel Burrell leads AUKUS-related deal execution. Anthony Mensier conducts technical due diligence and runs the Silent Unseen Incubator, and CFO Ewa Milewska supports deal execution alongside Kastory. The firm's website presents a consensus-driven partnership where investment decisions are informed by the team's combined policy, operational, and financial experience.

Expeditions Fund was launched in 2021 by Firlej Kastory co-founders Dr Mikolaj Firlej and Stanislaw Kastory. While Expeditions makes direct early-stage investments in European security and deep tech startups, Firlej Kastory operates as a private investment firm that invests in other VC funds. Both partners remain active across both entities.

Expeditions focuses on early-stage investments, typically leading seed rounds as a high-conviction backer. The firm states it acts quickly and aims to lead rounds when possible, deploying patient capital into startups at the intersection of security and deep tech.

The firm's stated mandate is narrowly defined around European security and defence innovation, including dual-use deep tech. Sectors outside the cybersecurity, autonomous systems, AI, quantum, communications, and space verticals are not part of the fund's disclosed investment scope.

The Silent Unseen Incubator is a vehicle within Expeditions directed by Investment Manager Anthony Mensier. It focuses on technical due diligence and venture development for frontier technologies, drawing on Mensier's decade-plus experience in Defence Tech, Cyber, and hybrid hardware-software systems for national security applications.

Expeditions Fund describes itself as a venture capital firm making direct, early-stage investments, and its key personnel manage operations, investor relations, and compliance in a manner consistent with external LP structures. However, the firm has not publicly disclosed its fund size, LP base, or whether the committed capital originates exclusively from the founders' affiliated investment firm, Firlej Kastory.

Expeditions has not publicly articulated a formal co-investment policy, but its investment team's track record includes previously leading investments at Octopus Ventures and NSSIF alongside other institutional backers. Its current stated preference is to operate as a high-conviction lead investor in seed rounds, leaving its appetite for club deals or follow-on syndication unstated.