Eric Slesinger, a former CIA officer, is now a venture capitalist investing in Europe’s expanding defense sector, guided by geopolitical shifts in trans-Atlantic relationships.
The Rise of European Defense Investments: Insights from a Venture Capitalist

The Rise of European Defense Investments: Insights from a Venture Capitalist
Exploring Eric Slesinger's Transition from CIA to Defense Start-Ups Amid Europe's Military Expansion
In recent months, Eric Slesinger has become a pivotal figure in the European defense landscape, leveraging his background as a Central Intelligence Agency officer to establish himself as a prominent venture capitalist at 201 Ventures. His focus is on military technology startups as European nations ramp up defense spending due to doubts surrounding their military partnerships with the United States.
During a whirlwind visit to Copenhagen, Slesinger engaged with various innovators, from creators of maritime drones to advisers linked with NATO, a schedule reminiscent of his previous life in intelligence. His current work is increasingly relevant as European governments contemplate significant investments in military capabilities amidst shifting political climates, especially with uncertainties stemming from the Trump administration's rhetoric on European defense strategies.
Slesinger’s foresight into Europe’s defense spending needs, which began years ago when he relocated to Madrid, has proven accurate. With U.S. military assurances no longer seen as a given, European nations are now positioning to spend potentially hundreds of billions of euros on advanced weaponry, missile-defense technologies, and satellite systems. This collective pivot towards self-sufficiency in defense is creating an influx of opportunities for both startups and investors in the region.
One of the companies Slesinger has backed is Delian, a Greek startup focused on building surveillance technologies to enhance border security. As he navigates this burgeoning sector, Slesinger has successfully gained recognition among European defense circles and expects to continue expanding his portfolio as the urgency for effective defense solutions grows.
While skepticism regarding European defense spending was prevalent in the past, the current geopolitical environment has shifted the perception, making defense innovation a priority in the wake of global instability. Slesinger represents a new breed of investor—a reflection of changing military priorities and economic opportunities on the continent.
During a whirlwind visit to Copenhagen, Slesinger engaged with various innovators, from creators of maritime drones to advisers linked with NATO, a schedule reminiscent of his previous life in intelligence. His current work is increasingly relevant as European governments contemplate significant investments in military capabilities amidst shifting political climates, especially with uncertainties stemming from the Trump administration's rhetoric on European defense strategies.
Slesinger’s foresight into Europe’s defense spending needs, which began years ago when he relocated to Madrid, has proven accurate. With U.S. military assurances no longer seen as a given, European nations are now positioning to spend potentially hundreds of billions of euros on advanced weaponry, missile-defense technologies, and satellite systems. This collective pivot towards self-sufficiency in defense is creating an influx of opportunities for both startups and investors in the region.
One of the companies Slesinger has backed is Delian, a Greek startup focused on building surveillance technologies to enhance border security. As he navigates this burgeoning sector, Slesinger has successfully gained recognition among European defense circles and expects to continue expanding his portfolio as the urgency for effective defense solutions grows.
While skepticism regarding European defense spending was prevalent in the past, the current geopolitical environment has shifted the perception, making defense innovation a priority in the wake of global instability. Slesinger represents a new breed of investor—a reflection of changing military priorities and economic opportunities on the continent.