SBG Systems

About SBG Systems

We design, manufacture, and support advanced inertial sensors, including IMUs, AHRS, and GNSS-embedded INS. Headquartered near Paris, SBG Systems is a French company serving customers in more than 70 countries worldwide. Built on deep MEMS technology expertise, our solutions are designed to perform in real-world conditions : from open seas and survey vessels to autonomous platforms and critical infrastructure. Rooted in technology and driven by people, we create motion and navigation solutions our customers trust to move with confidence.

Qinertia: Post-Processing Made Easy for all Marine Surveyors' Projects

Qinertia is SBG Systems’ GNSS+INS post-processing software, built to deliver centimeter-level positioning and highly accurate trajectories in even the most challenging environments. Key features include:

• Multi-constellation & multi-frequency GNSS for robust and fast convergence
• Flexible processing modes: PPK (single or virtual base), near-real-time PPK with RTCM, and tightly coupled PPP
• Orbi AR: high-precision PPP without a local base station
• Multi-sensor aiding: integrates DVL, odometer, magnetometer, air data, and velocity sensors for reliable trajectory continuity

Designed for both professionals and integrators, Qinertia combines powerful capabilities with user-friendly tools:

• Intuitive drag-and-drop interface for easy project setup 3D visualization for sensor layout and trajectory inspection
• Customizable exports compatible with downstream workflows
• Seamless integration with major GNSS receivers
• Global coverage: access to 10,000+ base stations in 164+ countries
• Flexible deployment: Desktop, OEM, and Cloud/API editions to fit any workflow 

A Complete Offer for all Marine Applications

SBG Systems provides a comprehensive range of MRU and INS solutions to address the full spectrum of marine and offshore requirements from compact survey platforms to high-performance navigation systems.

Ellipse Series

• Ultra-compact INS with 5 cm heave accuracy
• Ideal for hydrography, USVs, and space-constrained platforms

Ekinox Series

• Tactical-grade MEMS INS in a compact, low-weight, and low-power design
• Robust enclosure with IP68-rated marine version
• High-end MEMS sensors, advanced calibration, and optimized algorithms
• Well suited for hydrography, oceanography, and offshore operations

Apogee Series

• High-performance MEMS INS with very low noise gyroscopes
• Delivers precise roll, pitch, heading, heave, and position data
• Low latency and high resistance to vibrations
• Embedded Extended Kalman Filter for real-time GNSS/INS fusion
• Designed for harsh and GNSS-challenged environments (bridges, tunnels, forests)

Navsight Marine solution

Together, these product families form a scalable and complete marine navigation portfolio, enabling users to select the right performance level for every marine application.

• Available as MRU (roll, pitch, heave) or full INS with tri-frequency GNSS
• Continuous positioning even during GNSS outages under bridges or near port infrastructure
• Real-time heave accurate to 5 cm, with delayed heave option up to 2 cm for long or complex waves
• Compatible with Qinertia INS/GNSS post-processing software for highest survey accuracy
• Ideal for hydrographic surveys, offshore surveying, and challenging coastal environments.