Endeavor Optical Networks, a startup emerging from stealth today, is betting that laser-equipped satellites could replace the fragile network of undersea fiber optic cables that currently move data between the world's largest data centers and AI labs. The company, founded in May and backed by $10.75 million in seed funding, aims to launch a fleet of about 20 satellites capable of transmitting data at speeds of 2.4 terabits per second, matching the throughput of today's fastest undersea cables.

The problem EON is trying to solve is real and growing. As hyperscalers like Google, Amazon, and Microsoft build data centers around the world, they need reliable, high-speed connections to move massive amounts of data back and forth. Undersea fiber optic cables have been the standard solution for decades, but they're expensive to install, difficult to repair, and vulnerable to damage from ship anchors and natural disasters. Wireless alternatives have never worked because radio transmissions don't have enough bandwidth to carry the speeds required by modern data centers.

Why Are Lasers in Space a Better Solution?

Laser communications from orbit have been theoretically possible for years, but recent advances in optical technology and more powerful satellites are making the idea practical. NASA successfully used laser communications to beam data back from its most recent moon mission, while private space companies including York, Kepler, and Cailabs have demonstrated laser links between Earth orbit and the ground. However, those earlier demonstrations achieved throughput of only 2.5 gigabits per second, far below what data centers need.

EON's founders, CEO Charlie Horowitz and CTO Tyler Presser, are tackling one of the biggest technical challenges: atmospheric distortion. When laser signals pass through Earth's atmosphere, clouds and weather patterns can scatter and weaken the signal. EON plans to address this by carefully choosing ground station locations in different regions, using redundant sites, and leveraging weather data to ensure reliable connections even during poor conditions.

The company's technical team brings serious credentials to the challenge. Presser is a PhD astronautical engineer who has planned frontier missions for NASA. Michael David Francois is a long-time Google executive focused on global network infrastructure. Wesley Baxter is an optics engineer who recently worked on Amazon's LEO satellite network. Horowitz previously served as CEO and chief of staff at Apex Space, a satellite manufacturer.

How Will EON's Satellite Network Work?

• Initial Fleet Size: EON plans to build a network of approximately 20 satellites, each capable of providing a dedicated laser link between two continents with 24-hour coverage for early customers.
• Target Customers: The startup is talking to hyperscalers and AI labs as potential customers, focusing on underserved or expensive routes like France to Australia, or regions without extensive existing infrastructure such as connections between Africa and South America.
• Revenue Model: EON intends to sell dedicated capacity to customers who want full control over their data transit, rather than sharing bandwidth with other users.
• Timeline: The company plans to launch a demonstration satellite around the end of 2027, with the goal of achieving at least 800 gigabits per second of optical downlink throughput, and possibly reaching one terabit per second.

To keep costs manageable, EON is taking a pragmatic approach to engineering. The company will focus its spending on the components that must be exquisite, such as the gimbals that point the laser with precision. For the satellite bus itself, EON plans to buy powerful off-the-shelf models from companies like Apex Space rather than building custom spacecraft from scratch.

"Charlie is a force of nature, he can move seamlessly from strategy to the details required to make something real. Charlie is the ideal founder, and I invested personally because I believe deeply in Charlie and what he's building at EON with Tyler," said Ian Cinnamon, CEO of Apex Space and a personal investor in the company.

Ian Cinnamon, CEO at Apex Space

How Does EON Compare to Other Space-Based Data Solutions?

EON isn't the only company pursuing this opportunity. Blue Origin, Jeff Bezos' space company, has announced plans for TeraWave, an ambitious network of 5,048 satellites designed to provide speeds of up to 6 terabits per second to large-scale users. Blue Origin's plan is more ambitious in scope, but it will also require significantly more time to launch and deploy the full constellation.

EON's smaller fleet should be easier to get into space quickly, but the company will need to solve many of the same technical challenges as larger competitors. Caleb Henry, director of research at Quilty Space, noted that satellite internet is only now progressing from a technology of last resort to dependable, high-bandwidth infrastructure. "Data centers have high standards for quality and redundancy," Henry explained. "That's not to say it will be impossible to make satellites optimized for data center connectivity, just that it will be harder and take longer than most entrepreneurs suggest".

"I don't worry about demand. I think all of that will solve for itself. It's really all about can you actually get this thing into space in the time that we discussed? We really think about founder-product fit, and Horowitz is just the right caliber of guy to go after a problem like this," said Jeannette zu Fürstenberg, General Catalyst's president and managing director, who led the investment.

Jeannette zu Fürstenberg, President and Managing Director at General Catalyst

Horowitz emphasized that EON is focused on solving real problems that exist today rather than chasing speculative opportunities. "We have one rule at the company: no physics problems," he stated. "There's a market that exists today that we can go serve. Down the road, we'll go and take on more as it comes, but we know that this is a problem that exists today, that's only getting worse. That's our bet, more data is moving terrestrially than ever".

Horowitz

The seed funding will support EON's efforts to build out an optics laboratory, hire additional engineers, and conduct ground tests ahead of the planned 2027 demonstration satellite launch. If successful, the company could fundamentally change how data moves between continents, offering a faster, more resilient alternative to the undersea cables that have dominated global data infrastructure for decades.