Xona's $170 million Series C is, in one sense, a simple story: a startup raised growth capital to scale a new satellite service. In another sense, it is a much bigger story about the changing risk profile of one of the most foundational pieces of global infrastructure — GPS.
The investor case for Pulsar, articulated by Mohari Ventures Natural Capital's Jay Zaveri, was unusually blunt:
[QUOTE]"GPS was designed 50 years ago and the world has outgrown it. \[Its signals are\] weak, unencrypted, easily jammed." — Jay Zaveri, Founder and Partner, Natural Capital[/QUOTE]
That framing reflects a real shift in how both the Department of Defense and operators of critical commercial infrastructure are thinking about positioning, navigation, and timing.
What GPS Actually Underpins
GPS is, by far, the most consequential dual-use space system ever fielded. It underpins navigation and timing for both military and civilian applications, including:
- **Defense** — Precision-guided munitions, ISR platforms, command-and-control, search and rescue
- **Aviation and maritime** — Civil and military navigation across virtually all aircraft and ships
- **Telecommunications** — Network synchronization for mobile and broadband infrastructure
- **Financial systems** — Time-stamping for transactions, settlement, and high-frequency trading
- **Energy** — Synchronization across power grids and substations
- **Logistics** — Fleet management, delivery routing, supply-chain tracking
- **Consumer applications** — Mobile navigation, fitness, location-aware services
The breadth of that dependency is the heart of the problem. Any vulnerability in GPS becomes, potentially, a vulnerability across the entire economy.
The Vulnerabilities Are Operational, Not Theoretical
GPS signals are inherently weak by the time they reach the ground because GPS satellites operate in medium Earth orbit, roughly 20,000 kilometers above the planet. That weakness translates into a specific set of vulnerabilities:
- **Jamming** — A relatively low-power ground transmitter can drown out GPS signals in a local area, disrupting navigation and timing for any nearby user
- **Spoofing** — More sophisticated attacks broadcast falsified GPS signals that cause receivers to compute the wrong position or time
- **Atmospheric and environmental disruption** — Solar weather and other natural events can degrade signal quality
- **Single point of trust** — Most civilian receivers are designed assuming GPS signals are authentic, with limited cross-checking
These are not theoretical concerns. Jamming and spoofing of GPS in conflict zones has become routine, and the effects have spilled into commercial aviation, shipping, and even civil location services in regions far from active conflict.
[HIGHLIGHT]The cost of GPS dependence is no longer theoretical. Jamming and spoofing have moved from edge-case threats to operational realities — and the response is a steadily growing investment in alternative and complementary PNT systems.[/HIGHLIGHT]
How the Department of Defense Is Responding
The Department of Defense's posture toward PNT has evolved meaningfully over the last several years. Where the operative assumption was once "GPS is sufficient," the current direction is explicitly toward diversification.
A clear example is the Strategic Funding Increase (STRATFI) agreement that the Space Force awarded to Xona. The structure of that award is itself instructive: $20 million in government funding combined with $30 million in private capital — $50 million in total — specifically to support development of the Pulsar constellation. The mechanism is designed to leverage commercial investment alongside DoD funding rather than replacing one with the other.
Xona's CEO Brian Manning summed up the current procurement appetite directly:
[QUOTE]"There's a very clear need. They're looking to diversify their PNT capabilities … and the administration is very much looking at commercial capabilities." — Brian Manning, Co-Founder and CEO, Xona[/QUOTE]
That quote is short but carries a lot of weight. It signals two things at once: the Pentagon is actively buying commercial PNT, and the administration as a whole is encouraging that direction.
Why Commercial Infrastructure Operators Are Buying Too
The Department of Defense is not the only buyer of alternative PNT. Several commercial sectors that depend on high-precision timing are increasingly treating GPS resilience as a critical-infrastructure problem in their own right:
- **Telecommunications** — Mobile and broadband networks rely on precise time synchronization across cell sites and core network elements. Loss of GPS timing can degrade network performance and capacity.
- **Banking and financial services** — Trade time-stamping, regulatory compliance, and clearing operations all depend on highly accurate, traceable time.
- **Data centers** — Distributed compute and storage systems use precise timing for synchronization, log correlation, and consistency. Hyperscale operators are increasingly building independent timing infrastructure.
Xona has explicitly identified these sectors as initial commercial demand. Critically, high-precision timing customers can begin using Pulsar with a relatively small number of satellites in orbit, which gives the company an early commercial revenue path that doesn't depend on completing the full 258-satellite constellation.
[STATS]
GPS Satellites | ~20,000 km altitude (MEO)
Pulsar Satellites | Low Earth Orbit
Pulsar Signal Strength | Stronger than GPS at the receiver
Pulsar Frequency | L-band (compatible with existing GPS equipment)
Pulsar Constellation Target | 258 satellites
[/STATS]
What Pulsar Adds to the Resilience Stack
Pulsar's design choices map directly onto the GPS vulnerability landscape:
1. **Stronger signals from LEO** — Harder to jam in any given area
2. **Modern signal architecture** — Including authentication features that legacy GPS signals do not provide
3. **L-band compatibility** — Works with existing GPS receivers, dramatically lowering the adoption barrier
4. **Commercial deployment cadence** — Can deliver value with a partial constellation, then scale toward full coverage
5. **Independent operator** — Provides a second commercial source of PNT, reducing single-vendor risk
None of those features make GPS obsolete, and Xona is not marketing Pulsar as a GPS replacement. The product positioning — "alternative or backup to GPS" — is about diversification and resilience rather than displacement.
What to Watch Over the Next 18 Months
For DoD program managers, infrastructure operators, and investors tracking PNT modernization, several milestones will signal whether the alternative-PNT thesis is moving from concept to operational reality:
1. **Pulsar Q4 2026 launch and constellation buildout.** Successfully expanding from one production satellite to seven, then continuing through the 2027 ramp, is the most visible technical milestone.
2. **Additional STRATFI- and OTA-style awards.** The shape and scale of further DoD commercial PNT awards will signal how serious the procurement shift really is.
3. **First commercial timing customers going live.** When the first major telecom, data center, or financial-services customer publicly adopts a non-GPS PNT source, the alternative-PNT category will have crossed an important threshold.
The era when PNT meant exclusively "GPS" is ending. The next era, increasingly, will be a mix — GPS plus commercial LEO services like Pulsar — and Xona's Series C is one of the clearest market signals to date that the transition has real institutional support.