Endeavor Optical Networks (EON), a startup founded in May 2026, has emerged from stealth with a $10.75 million seed funding round led by General Catalyst and Andreessen Horowitz. The company, co-founded by CEO Charlie Horowitz and CTO Tyler Presser, plans to develop a network of laser-equipped satellites to facilitate high-speed data transmission between continents, potentially replacing the reliance on undersea fiber-optic cables.
Undersea cables, while currently the backbone of global data transmission, present challenges in terms of installation, maintenance, and vulnerability to damage. EON’s proposed satellite network aims to address these issues by providing a more resilient and flexible alternative. Traditional radio frequency communications lack the necessary bandwidth for such high-volume data transfer, making laser-based optical communication a promising solution.
Recent advancements have demonstrated the feasibility of laser communications in space. For instance, NASA’s Deep Space Optical Communications project has showcased reliable high-bandwidth data transmission over vast distances. Additionally, companies like Rocket Lab have expanded their capabilities by acquiring firms specializing in laser optical communications, indicating a growing interest in this technology.
EON’s ambitious plan involves deploying approximately 20 satellites, each capable of providing dedicated links between continents. The initial fleet aims to offer 24-hour coverage for early customers, with a focus on underserved or expensive routes, such as connections between France and Australia or between Africa and South America. By carefully selecting ground stations and leveraging weather data, EON intends to ensure reliable links despite atmospheric challenges like cloud cover.
The startup is targeting hyperscalers and AI labs as primary customers, given their substantial data transfer needs. EON plans to sell dedicated capacity, allowing clients full control over their data transit. The seed funding will be utilized to establish an optics lab, expand the engineering team, and conduct ground tests ahead of a demonstration satellite launch anticipated by the end of 2027. This demonstration aims to achieve optical downlink throughput of at least 800 gigabits per second, potentially reaching up to a terabit.
To achieve these goals, EON will focus on developing high-precision optical communication terminals, investing in critical components like gimbals for accurate laser pointing. The company plans to integrate these terminals with off-the-shelf satellite buses from manufacturers such as Apex Space, where Horowitz previously held leadership roles.
As global data demands continue to escalate, EON’s initiative represents a significant step toward diversifying and enhancing the infrastructure that supports our digital world. By leveraging space-based laser communications, the company aims to provide a robust alternative to traditional undersea cables, potentially transforming the landscape of global data transmission.
