PntGuard Maritime
When GPS lies, we don’t.
GNSS/GPS jamming and spoofing are no longer exceptional events. They are daily operational reality for commercial vessels across the world. Every unprotected vessel is exposed.
The World’s First Maritime Navigation Assurance Platform
When GPS lies, we don’t.
GNSS/GPS jamming and spoofing are no longer exceptional events. They are daily operational reality for commercial vessels across the world. Every unprotected vessel is exposed.
Explore The
PntGuard Maritime System
PntGuard™ Maritime combines authenticated positioning, spoofing detection and real-time bridge visualization in a standalone maritime navigation resilience system.
Unlike traditional fleet tracking tools, PntGuard is designed for operational bridge use during active GPS interference events.
GNSS Interference is
no longer only a military problem
About GPS/GNSS Interference
Over 24,000 vessels were affected by GNSS jamming and spoofing in 2025. The number is growing every quarter. State actors, criminal networks and shadow fleet operators routinely manipulate the signals that commercial vessels depend on for positioning, timing and situational awareness. Learn more about GNSS interference.
The PntGuard Maritime Technology
PntGuard is engineered using military-grade assured positioning, navigation, and timing (APNT) technology and proven through one of the industry’s most comprehensive operational validation programmes. Read more about our technology here.
As threats to GNSS continue to evolve, so does PntGuard Maritime
As threats to GNSS continue to evolve, so does PntGuard Maritime. See the latest updates on validation, partnerships, and where we’re headed next.
See PntGuard Maritime in action
Built to perform when
every other signal fails
PntGuard Maritime provides trusted positioning, real-time spoofing detection and operational awareness when GNSS signals can no longer be trusted.
Authenticated positioning independent of GPS and other GNSS systems.
Real-time detection of jamming, spoofing, and meaconing.
Maintain full situational awareness, even in GNSS-denied environments, with a secure cloud-based platform for remote fleet management.
Up to 60 days of encrypted one-second operational recording for investigations, compliance, and insurance documentation.
Developed by
PntGuard Maritime has been developed for the commercial shipping industry using a combination of expertise between cross-industry partners, SGM Technology AS, NAL Technologies (Naltec), and Tschudi Shipping Company. PntGuard is a Naltec-owned product platform, designed and manufactured in partnership with its collaborators.
Service provider
Leveraging Iridium’s low-Earth orbit (LEO) satellite system that provides a PNT signal approximately 1,000x stronger than GNSS/GPS signals
Trusted by leading fleets
