What Meggitt does

Meggitt (Sensorex) SAS is a France-based designer and manufacturer of high-precision displacement, position, force, and inertial sensors headquartered in Archamps, Haute-Savoie, where it has operated since 1985 as a wholly-owned subsidiary of Meggitt PLC (a UK-listed FTSE-100 aerospace and defense engineering group). The company serves four primary verticals — civil aerospace, railway, defense, and industrial markets — with product families spanning LVDT displacement transducers (e.g., SX12V series rated to 600 bar and 235°C), servo-inclinometers using oil-immersed galvanometer pendulums (SX41400, SX41200), MEMS-based tilt sensors and accelerometers (SX40000 series), and integrated IMU/ARS units (SX43045/SX43046) that combine MEMS gyroscopes and accelerometers with a patented Kalman-filter algorithm for dynamic tilt measurement under vibration.

The underlying technology rests on a vertically integrated stack: in-house MEMS silicon-cell design, oil-damped servo mechanisms with optical position sensing, electromagnetic LVDT transduction, and digital signal-conditioning electronics (SX3120, SX3310). Products are qualified to AS/EN 9100, ISO 9001, EN 50155, AREMA, MIL-STD, and DO-160/178/254, supporting applications such as fly-by-wire flight control, ETCS/CBTC train signalling, military stabilization, LNG/oil-platform monitoring, and robotics. The Archamps facility spans 2,400 m^2 of workshops, 340 m^2 of clean rooms, and dedicated test infrastructure (laser trimming, EB welding, climatic chambers, test benches), all operated under a High Performance System (HPS) excellence framework that succeeded the Meggitt Production System in mid-2021.

The business model is direct enterprise field-sales: a catalog of standard LVDT and inertial products sits alongside custom-designed sensor solutions, both sold quote-based to OEMs. Named customers include Airbus Group, Dassault Aviation, Safran, Collins Aerospace, Liebherr Aerospace, Alstom, Siemens Mobility, Hitachi, Thales, Airbus Defense & Space, Schlumberger, Stäubli, Industeel and PSA Motorsport. No public pricing or standalone subsidiary revenue is disclosed; the parent group reported £1.684 billion in sales across 40 operating companies and ~12,000 employees, but Meggitt Sensorex is a sub-50-person specialized unit within that group, with revenue not separately broken out.

Name

Meggitt

Legal name

MEGGITT (Sensorex) SAS

Website

https://meggittsensorex.fr

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Meggitt Sensorex designs and manufactures high-precision LVDT displacement sensors, servo-inclinometers, and MEMS-based inertial measurement units for severe environments, serving civil aerospace, railway, defense, and industrial OEMs from its Archamps, France facility as a subsidiary of Meggitt PLC.

Ownership category

akta.pro rank

Product category

Industrial Sensors and Microelectronics

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Search, Detection, Navagation, Guidance, Aeronautical Sys (3812)

akta.pro primary industry

Industrial-Grade Sensors & Transducer Components (Discrete sensing elements, transducers, MEMS sensors) (IMAGAJAO)

akta.pro secondary industries

Sensor Fusion, Interface ICs & Modules (AFE/Readout/Packaging/Calibration) (HDAHALAO), Industrial Sensors (Pressure, Temperature, Flow, Level, Proximity, Vibration) (IMAGAFAA)

Keywords

• Aerospace sensors
• Inertial measurement systems
• LVDT displacement sensors
• Railway signalling sensors
• Defense microelectronics

Headquarters

HQ city

Archamps

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. Sensor Products: Sale of catalog products including LVDT sensors, inertial sensors, servo-inclinometers, accelerometers, and signal conditioners for aerospace, railway, defense, and industrial applications
2. Custom Solutions: Custom-designed sensor solutions developed to specific customer specifications for specialized applications in severe environments

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Meggitt (Sensorex) designs and manufactures high-performance sensors and microelectronics for severe environments, specializing in displacement and position sensors (LVDT), inertial sensors (servo-inclinometers, MEMS accelerometers, gyrometers, IMUs), and signal conditioning electronics. The products serve civil aerospace, railway, defense, and industrial markets requiring precision measurement under extreme conditions including high pressure, temperature, vibration, and radiation.

Product overview

Meggitt (Sensorex) is a recognized leader in sensors and microelectronics for severe environments since 1985. The product portfolio consists of three main categories: (1) Inertial sensors including servo-inclinometers (SX41400, SX41200), MEMS-based tilt sensors and accelerometers (SX40000 series), and integrated IMU/ARS units (SX43045/SX43046, SX41800); (2) LVDT displacement transducers for position measurement (SX12V series); and (3) Signal conditioning electronics (SX3120 LVDT conditioner, SX3310 strain gauge conditioner). Products serve aerospace, railway, defense, and industrial markets, featuring standard communication outputs (RS485, CAN bus, USB, 4-20mA) and certifications including AS/EN 9100, ISO 9001, and EN 50155.

Differentiator

Problem solved

Functional benefit

Products and services

• SX41400 - Twin axis servo-inclinometer Dual axis closed loop inclinometer/accelerometer offering angular tilt or acceleration measurements in two perpendicular axes. Features rugged IP65 sealed housing, hydro-mechanical damping for high shock and vibration resistance, and galvanometer pendulum sensing with optical position sensor. Used in aerospace, railway, defense, and industrial applications.
• SX41200 - Servo-inclinometer series Closed loop instrumentation transducer with galvanometer pendulum and optical position sensor. Enables very sensitive inclinometers (<0.5 arc second) without hysteresis, with accuracy of 1.10-4 of measuring range. Available in six measuring ranges from ±3° to ±90°. For aerospace, railway, defense, and industrial applications.
• SX40000 - MEMS based high performance tilt sensor MEMS-based tilt sensor combining high-performance MEMS cells with digital signal compensation and processing. Achieves <0.05% scale factor non-linearity error and ±0.057° bias calibration residual error. Features adjustable bandwidth (0.01Hz to 10Hz), 4-20mA, RS485 and USB outputs. Withstands 200g/6ms shock.
• SX40000 - MEMS based high performance accelerometer MEMS accelerometer matching servo-accelerometer performance at optimized cost. Features <0.05% non-linearity, <0.01mg resolution, operating temperature -40°C/+85°C. Available ranges ±0.25g & ±1g with 4-20mA, RS485 and USB outputs.
• SX43045 & SX43046 - IMU/ARS Triple function sensor (acceleration, angular speed & attitude) as an Inertial Measurement Unit. Measures accelerations, angular speeds and tilt in dynamic conditions using 3 MEMS gyrometers and 3 MEMS accelerometers with patented Kalman filter algorithm. Provides roll & pitch angles via CAN bus, RS485 Modbus RTU, and analog 0-5VDC outputs.
• SX41800 - Servo-accelerometer High performance digital RS485 (MODBUS) servo-accelerometer with optical infrared sensor and inertial mass with servo feedback. Features outstanding accuracy, long term stability, auto-test function, and oil immersed damped servo mechanism for high shock and vibration resistance. CE EN 50155 and CE EN 61326 qualified.
• SX12V series - LVDT for servo-actuator AC/AC LVDT sensor specially designed for servo-actuator pressure chambers. Resists static pressure of 350 bar with threaded end for fixation and zero mechanical adjustment. Available with 6-pin connector output or PTFE cable output. Requires conditioning unit model SX3120 or SX9130.
• SX3310 - Strain gauge conditioner Strain gauge conditioner module for very low bridge impedance (down to 120 ohms). Features 24VDC power supply, 5VDC or 10VDC transducer excitation, 0/10V or ±10V and 4-20mA output signals. Simple zero and scale adjustment with dip-switches and potentiometer. DIN EN track compatible.
• SX3120 - LVDT conditioner Inductive transducer conditioner for LVDT, RVDT and half bridge sensors. Features 24VDC power supply, 3.5kHz or 5kHz excitation frequency options, phase shift adjustment -20° to +15°, and master/slave synchronization capability.

Quantifiable outcome

• MTBF: Very high mean time between failures demonstrated in severe aerospace environments
• +5 more outcomes

Named customers19 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Safran Sensing Technologies (formerly Colibrys / Sagem): Safran's inertial-sensor division manufactures MEMS accelerometers, gyrometers, and IMUs for aerospace, defense, and industrial markets — the closest direct competitor to Meggitt Sensorex's inertial product line (servo-inclinometers, MEMS accelerometers, IMU/ARS).
• SBG Systems: French-headquartered designer of high-performance MEMS-based IMUs, AHRS, and INS for survey, marine, and land-based autonomous applications. Closely comparable in inertial product architecture and target verticals, though less focused on aerospace/rail safety-certification use cases.
• Exail (iXblue): Exail manufactures fiber-optic gyroscope (FOG) and MEMS-based inertial systems for defense, marine, and aerospace — a direct peer in high-precision inertial measurement serving many of the same severe-environment and defence programmes as Meggitt Sensorex.
• TE Connectivity (Measurement Specialties): TE Connectivity's sensors business (incorporating Measurement Specialties) is one of the largest manufacturers of LVDT position sensors, accelerometers, and pressure sensors for industrial, aerospace, and rail applications — a direct competitor across the LVDT and vibration-sensor categories.
• Sensata Technologies: Sensata manufactures sensors and sensor-based solutions for industrial, aerospace, and rail markets, including position, pressure, and force sensors — broadly comparable product overlap with Meggitt Sensorex's industrial and rail LVDT/conditioner portfolio.

Broad incumbents

• Northrop Grumman LITEF: LITEF, a Northrop Grumman subsidiary, produces tactical-grade MEMS and fiber-optic gyros and inertial systems primarily for military and commercial aerospace — overlapping with Meggitt Sensorex's IMU/aerospace inertial portfolio at a broader incumbent scale.
• Honeywell Aerospace: Large incumbent supplying inertial sensors, LVDTs, pressure sensors, and avionics to civil and military aerospace — overlapping with Meggitt Sensorex's LVDT and IMU product lines within a much broader portfolio.
• Curtiss-Wright (Pax Electronics / Defense Solutions): Curtiss-Wright supplies ruggedized inertial sensors, IMUs, and data acquisition modules for defence, aerospace, and industrial applications — directly comparable product lines for severe-environment sensing, within a much larger defense-electronics group.

Others

• L3Harris Technologies: Defence and aerospace prime producing inertial measurement units, tactical sensors, and avionics for military and commercial platforms — comparable to Meggitt Sensorex's defence IMU business as part of a much larger sensor and systems portfolio.

Emerging players

• VectorNav Technologies: VectorNav designs tactical-grade MEMS IMU/AHRS/INS for unmanned systems, robotics, and industrial applications — emerging competitor in the same dynamic-tilt/IMU space where Meggitt Sensorex's Kalman-filtered SX4304x IMU competes, though at a smaller scale and more limited safety-certification.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance20 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Meggitt