Resilient global positioning for maritime navigation and situational awareness

PntGuard™ gives your vessel’s true position when GNSS fails — delivering certainty, safety and control to every voyage. Stay on course with the system every ship needs.

Resilient global positioning for maritime navigation and situational awareness

PntGuard™ gives your vessel’s true position when GNSS fails — delivering certainty, safety and control to every voyage. Stay on course with the system every ship needs.

Risk

Spoofing and Jamming: The Growing Threat Putting Every Vessel at Risk

GNSS interference is no longer confined to conflict zones. Spoofing and jamming is disrupting commercial shipping globally, and sending ships off course and compromising crew safety with far reaching economic consequences. As attacks spread, every unprotected vessel is exposed.PntGuard provides the layer of trust you need — maintaining accurate positioning, providing resilience to GNSS threats, and ensuring safety at sea.

Solution

Always Know Your True Position – Anywhere on Earth

Spoofing and jamming: The growing threat putting every vessel at risk

Powered by NAL’s market-leading assured positioning, navigation and timing (APNT) technology and built on the Iridium® PNT service, PntGuard™ delivers a continuous, authenticated and reliable position 100% independent of GNSS. This self-contained system forms a trusted navigation backbone — providing maritime security by detecting spoofing, overcoming jamming, and keeping vessels safely on track.

Stay on course with PntGuard.

Comparing the ship’s GNSS feed with an alternate and fully authenticated signal, PntGuard gives instant visual and audible alerts when GNSS fails.

Comparing the ship’s GNSS feed with an alternate and fully authenticated signal, PntGuard gives instant visual and audible alerts when GNSS fails.

Technology

PntGuard Technology

PntGuard is the first to combine an authenticated and fully independent positioning signal with real-time jamming and spoofing detection into a standalone system for the maritime industry. No other product currently available to the maritime industry matches PntGuard’s blend of position authentication, resilience and ease of deployment.

Verified Position Source at Sea

Provides a 100% GNSS-independent position source for your vessel using a trusted PNT signal to keep vessels on course and crews safe — even when GNSS/GPS is compromised or disrupted.

Verified Position Source at Sea

Provides a 100% GNSS-independent position source for your vessel using a trusted PNT signal to keep vessels on course and crews safe — even when GNSS/GPS is compromised or disrupted.

Global, 24/7 Coverage

Delivers assured position information anywhere in the world, including polar and remote regions, with Iridium’s global satellite constellation as its backbone.

Global, 24/7 Coverage

Delivers assured position information anywhere in the world, including polar and remote regions, with Iridium’s global satellite constellation as its backbone.

Protect Your Vessel and Bottom Line

Stops spoofing before it happens. Prevent collisions, delays, route deviations or halted transits—triggering charter disputes, missed laycans and lost berthing slots.  

Protect Your Vessel and Bottom Line

Stops spoofing before it happens. Prevent collisions, delays, route deviations or halted transits—triggering charter disputes, missed laycans and lost berthing slots.  

Track Your Vessel With Confidence

Offers a global vessel tracking and monitoring (VMTS) capability when AIS becomes unusable. Track and monitor vessel locations worldwide with a secure and private reporting system.

Track Your Vessel With Confidence

Offers a global vessel tracking and monitoring (VMTS) capability when AIS becomes unusable. Track and monitor vessel locations worldwide with a secure and private reporting system.

Compact Plug and Play

PntGuard comprises two compact components – an above-deck receiver that connects to the Iridium PNT service and a below-deck bridge display that shows both the falsified GPS track and the vessel's true position on a nautical chart in real time.

Compact Plug and Play

PntGuard comprises two compact components – an above-deck receiver that connects to the Iridium PNT service and a below-deck bridge display that shows both the falsified GPS track and the vessel's true position on a nautical chart in real time.

Proven technology

Incorporates proven military-grade APNT technology. PntGuard is built on Iridium's PNT service, with a powerful signal 1,000 times stronger than GPS  to deliver a verified position that can’t be falsified.

Proven technology

Incorporates proven military-grade APNT technology. PntGuard is built on Iridium's PNT service, with a powerful signal 1,000 times stronger than GPS  to deliver a verified position that can’t be falsified.

Results

Field Tested and Industry Verified

PntGuard is built on the same technology that enables APNT solutions for many aspects of critical infrastructure, including telecommunications networks, data centers, and utilities. The PntGuard for maritime solution has been tested by leading international shipowners covering over 100,000 nautical miles (NM) detecting multiple real-world jamming and spoofing events. PntGuard has been rigorously tested against modern military-grade electronic warfare threats, including the Jammertest in Andøya, Norway – the world’s largest proving ground for GNSS resilience – confirming its operational readiness for global deployment.

Partners

Cross-Industry Expertise

PntGuard has been championed by Tschudi Shipping Company alongside U.S. company NAL Research Corporation and Norway's SGM Technology AS – three organisations combining deep expertise in global shipping and logistics operations, military grade APNT systems and maritime technology solutions. Together, they deliver an innovative maritime security solution that bridges defence-grade resilience with commercial simplicity.

Safeguard Your Fleet Get in Touch Today

GNSS interference is spreading fast – and no operating area is immune. PntGuard ensures you always know the truth when GNSS can’t be trusted. Equip your fleet with certainty in an era of invisible threats.