Xona Space Systems raises $170M Series C and opens San Francisco satellite factory to build GPS alternative

Xona Space Systems raises $170M Series C to build GPS alternative from San Francisco factory

Xona Space Systems is building a new GPS. Not an improvement layered on top of the existing constellation — a parallel network of small low Earth orbit satellites designed to deliver navigation signals that are more accurate, more powerful, and more secure than anything available to civilians today.

The company closed a $170M Series C and opened a satellite factory in San Francisco, both announced on the same day. CEO Brian Manning, who came from SpaceX, says the factory is modeled after a supercar assembly line and is built to produce multiple satellites per week. For context: the US currently produces roughly two navigation satellites per year.

Why LEO changes the math

Xona's satellites orbit 20 times closer to Earth than existing GPS infrastructure. That proximity is the source of the signal's core advantage — it arrives 100 times stronger than standard GPS, strong enough to penetrate walls, tree cover, and active jamming. Manning says the system can tell an autonomous vehicle not just what road it's on, but whether it's centered in its lane. At the consumer end, the signal is strong enough to track a dog collar indoors, where standard GPS fails entirely.

The constellation is planned at 258 satellites.

“We're basically building a new GPS — a network of small satellites that are 20 times closer to earth than existing GPS to provide extremely high accuracy, extremely high reliability navigation capabilities... The US currently produces maybe two navigation satellites in a year. With what we're building here, we can produce that many satellites in a week.”

Software update, not hardware swap

The user equipment angle is where the commercial model gets interesting. A satellite navigation system has three components — the ground segment, the satellites, and the user equipment — and Manning argues user equipment is the most overlooked. Xona has designed its signal to integrate via software update into existing GPS chipsets, from automotive receivers to consumer trackers. The company says it has already demonstrated compatibility across more than a dozen receiver types using a satellite launched last year that is currently operational.

Chipsets Xona is working with are roughly 3mm x 3mm. Because GPS is a receive-only broadcast (the satellite sends, the device only listens), it works in ultra-low-power form factors — peel-and-stick shipping labels are one use case Manning mentions.

Business model

Manning frames the service like satellite radio versus FM. Standard GPS is the free, open broadcast. Xona's network operates on a subscription model: the signal is available, but a subscription key is required to unlock the data. That framing also covers the security pitch — today's GPS signal is effectively unencrypted and unauthenticated, which Manning describes as the equivalent of mailing your social security number on a postcard. Xona's civilian service offers the kind of signal authentication and encryption previously available only to military users.

Spectrum and regulatory position

The hardest technical problem Xona solved may not be the satellites themselves. Manning says the company spent years on spectrum engineering before touching satellite design, working out how to broadcast a high-power signal in the GPS frequency bands without causing interference to the existing GPS signals — which arrive from orbit at roughly the power of a light bulb. Xona launched a satellite last year specifically to demonstrate that coexistence is possible. The result now forms the regulatory basis for the constellation, and Manning argues it's also a practical necessity given the scale of electronic warfare and GPS jamming in the current environment.

Why San Francisco

The founding team came from Stanford, and Manning argues the talent profile Xona needs — electrical engineers, software engineers, mechanical engineers — maps better to Silicon Valley than to the aerospace corridor in Southern California. He describes the inside of Xona's satellites as looking more like a desktop computer than a Boeing 747, which makes the Bay Area's compute and chip ecosystem a better fit than LA's traditional aerospace base.

The factory is now operational. Whether it can sustain the claimed production cadence of multiple satellites per week is the execution question the $170M is meant to answer.