Theia tracking naval activity around the Taiwan Strait, with satellite confirmation of an aircraft carrier

Maritime Capability

Military Vessel Detection

Monitor naval activity: surface combatants, aircraft carriers, and submarines, from satellite, independent of cooperative signals.

The Capability

An independent layer of naval awareness.

Theia detects and monitors military vessels using satellite imagery across the world’s oceans: surface combatants, aircraft carriers, submarines when surfaced or at shallow depth, and naval auxiliaries.

Military vessels rarely broadcast AIS during operations, so conventional tracking is limited to cooperative signals and public reporting, both incomplete by design. Theia supplements classified sources with open-source, commercially available satellite intelligence that allies, partners, and analysts can share and reference.

Alert triggered as a military vessel enters monitored waters

How Theia Detects

Satellite detection, applied to naval activity.

01 / Detect

SAR Detection


Synthetic aperture radar identifies vessel-sized objects regardless of weather, time of day, or AIS status, with no emitted signal required.

02 / Classify

Optical Classification


High-resolution optical imagery enables classification and identification of vessel type, size, and configuration.

03 / Monitor

Continuous Monitoring


Detections are timestamped, geolocated, and cataloged across strategic waterways, naval operating areas, and chokepoints.

OSINT Verification

Satellite ground truth for open-source analysis.

Open-source intelligence is increasingly important for governments, analysts, and journalists tracking naval activity. When reports surface of naval movements, fleet exercises, or vessel transits through strategic waterways, Theia’s imagery and detection data offer an independent way to verify or contradict those claims.

For agencies that need to corroborate classified reporting with open-source evidence, or for analysts working entirely in the open-source space, Theia provides the satellite ground truth that OSINT depends on.

By the Numbers

Naval activity, observed.

73,264

Military vessel detections

820

Aircraft carrier detections

274

Submarine detections

Use Cases

Where naval detection matters.

National Defense & Security

Monitor adversary naval force posture, track fleet movements, and maintain awareness of strategic waterways.

Allied Force Coordination

Support multi-national maritime operations with shared, commercially sourced intelligence that complements classified systems.

Maritime Domain Security

Fill surveillance gaps in exclusive economic zones, territorial waters, and chokepoints.

Analysts & Researchers

A foundational dataset for academic, think tank, and policy research on naval activity and maritime security.

Get Started

Discuss secure access to military vessel intelligence.

For government and defense inquiries, contact our team to discuss deployment options and access requirements.