Auxitrol Weston

What Auxitrol Weston does

Auxitrol Weston is a French-headquartered aerospace sensor manufacturer formed from the 2003 consolidation of Auxitrol (founded 1960), Weston Aerospace (founded 1888), and Norwich Aero Products (founded 1983), and acquired by TransDigm Group in 2019. The company designs, manufactures, and supports highly engineered temperature, speed, pressure, torque, vibration, level, density, and mass flow sensors — plus analog indicators and integrated harnesses — using proprietary physical-sensing technologies including silicon piezoresistive, vibrating cylinder, thermocouple, RTD, thermistor, eddy current, optical pyrometer, and patented variable reluctance Phase Displacement torque measurement. Production is distributed across four manufacturing facilities in France (Bourges), the United Kingdom (Farnborough, Waltham Cross), the United States (Norwich, NY), and Mexico (Tijuana), supported by five certified MRO/repair stations across France, the UK, the USA, Singapore, and China, and a Designated Service Partner network (Proponent, Habco) plus OEM Services for AOG support.

Auxitrol Weston operates as a B2B Tier-1/Tier-2 supplier to the global aerospace industry under a quote-based, multi-year contract model with no publicly disclosed pricing. Customers span commercial aerospace primes (Airbus, Boeing), business jet OEMs (Gulfstream, Dassault, Bombardier, Cessna, Embraer), helicopter OEMs (Sikorsky, Airbus Helicopters, Leonardo), defense aerospace (Lockheed Martin, Northrop Grumman, Eurofighter, Dassault, KAI), defense non-aerospace (submarine applications), space launch vehicles, and industrial gas turbine operators. The company employs 501–1,000 people across its global footprint.

Revenue is generated through three streams: aerospace sensor hardware sales (core), MRO services through certified repair stations, and supply-chain management of approximately 200 key suppliers across 10 commodity groups. The business is supported by an unusually broad portfolio of regulatory certifications (FAA FAR145, EASA Part 145, TCCA, CAAC, NADCAP, AS/EN 9100, Part 21, MIL-DTL-7990D QPL) that constitute a structural barrier to entry and enable global sale of qualified parts into both commercial and defense aerospace platforms.

Name

Auxitrol Weston

Legal name

Auxitrol Weston

Website

https://auxitrolweston.com

Company type

Private

Founded year

1888

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Auxitrol Weston is a French-headquartered, TransDigm-owned aerospace sensor manufacturer (501–1,000 employees) that designs and produces proprietary temperature, pressure, speed, torque, vibration, level, density, and mass flow sensors for commercial, business jet, helicopter, defense, space, and industrial gas turbine OEMs worldwide.

Ownership category

akta.pro rank

Product category

Aerospace Sensors and Instrumentation

NAICS

Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413), Aerospace Product and Parts Manufacturing (33641), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345)

SIC

Aircraft Parts & Auxiliary Equipment, Nec (3728), Industrial Instruments For Measurement, Display, And Control (3823), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Parts Distribution & Spares Management (Aftermarket) (IMABALAK)

Keywords

• Aerospace sensor manufacturing
• Aerospace temperature sensors
• Aerospace pressure sensors
• Aerospace MRO services
• Gas turbine instrumentation

Headquarters

HQ city

Bourges

HQ country

France

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aerospace Sensor Manufacturing: Design, manufacture and sale of highly reliable temperature, speed and pressure sensors for aerospace applications including engines, airframes, and industrial gas turbines
2. MRO Services: Maintenance, Repair and Overhaul services on sensors and other engine components with 4 FAA FAR145, EASA part 145, TCCA and CAAC certified repair stations
3. Supply Chain Services: Global supplier management with approximately 200 key suppliers across 10 major commodity groups supporting product and industrial performance

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Auxitrol Weston designs, manufactures, and sells highly reliable aerospace sensors and instrumentation measuring temperature, speed, pressure, torque, vibration, level, density, and mass flow for engines, airframes, and industrial gas turbines. The company also provides FAA/EASA/TCCA/CAAC-certified Maintenance, Repair and Overhaul (MRO) services on sensors and engine components through its global network of repair stations and Designated Service Partners. Customers include major commercial, defense, helicopter, space, and industrial gas turbine OEMs and operators worldwide.

Product overview

Auxitrol Weston is a leading global manufacturer of aerospace sensors for harsh environments, offering a comprehensive portfolio of highly reliable sensors and instrumentation. The product portfolio includes pressure sensors (silicon piezoresistive and vibrating cylinder), speed sensors (intrusive and non-intrusive), temperature sensors (RTDs, thermocouples, thermistors, pyrometers, TAT sensors), densitometers, level sensors, mass flow sensors, torque sensors, vibration sensors, analog indicators, and specialized harness/interconnection solutions. These products serve commercial aerospace, business jets, helicopters, defense aerospace, defense non-aerospace (submarines), space, and industrial gas turbine markets. The company provides both standard and bespoke sensor solutions with manufacturing facilities in France, UK, USA, and Mexico, and maintains global product support centers for MRO services.

Differentiator

Problem solved

Functional benefit

Products and services

• Pressure Sensors Pressure sensors including silicon piezoresistive amplified output, silicon ratiometric output, pressure switches, and vibrating cylinder pressure sensors for aerospace engine and aircraft applications.
• Speed Sensors Speed sensors including intrusive and non-intrusive variants using variable reluctance and eddy current technologies for gas turbine and gearbox monitoring, achieving MTTF exceeding 40 million hours.
• Temperature Sensors Complete range of aircraft temperature sensors including heated and non-heated de-iced TAT sensors, nickel and platinum RTDs, thermocouples, optical pyrometers, and thermistors for aerospace applications.
• Densitometers Fuel density sensors using vibrating cylinder technology for aerospace fuel density measurement applications, offering best-in-world accuracy and drift performance with drift less than 0.03% per year and repeatability less than 0.01%.
• Level Sensors Aerospace level sensors for measuring level in engine lube oil tanks using resistive/potentiometric technology with reed switches and magnetic float, achieving over 20 million flight hours across 15+ years of deliveries.
• Mass Flow Sensors Mass flow sensors using thermal exchange technology for air and nitrogen fluid measurement in air management and inerting systems, capable of operating in extreme environments with no flow detection capability.
• Torque Sensors Aerospace torque sensors for turboprop and turboshaft engines using patented variable reluctance Phase Displacement technology, achieving MTTF over 40 million hours, speeds up to 60,000 RPM, and repeatability up to ±0.025%.
• Analog Indicators Analog indicators using magnetic deflection technology for measuring temperature, pressure, level, position, angle of attack, speed, and torque in aircraft, helicopters, ships, and submarines, with MTBF typically exceeding 135,000 hours.
• Integrated Harnesses Integrated harness assemblies combining multiple sensor types with mineral insulated cables for temperature and speed measurement interconnection in aircraft engines.
• Thermocouple Interconnection Solutions Thermocouple interconnection solutions including flexible and rigid mineral insulated cables, terminal blocks, and connectors for aircraft engine and gas turbine sensor interconnection.
• Turbines Interconnection Solution Low pressure turbine overspeed (LPTOS) and overspeed leadout (TOSL) harness assemblies for turbine monitoring applications.
• High Temperature Vibration Sensors Piezoelectric accelerometer vibration sensors designed for extreme high temperature environments up to +500°C, with ceramic piezoelectric material operating in compression mode and tested stability over 1500 hours at high temperature with minimal drift.
• Moderate Temperature Vibration Sensors Piezoelectric accelerometer vibration sensors for moderate temperature environments up to +260°C, using ceramic piezoelectric material in shear mode for reduced base strain sensitivity.
• Thermocouples K-type thermocouples and other types using Seebeck effect technology for aircraft engine temperature measurement, with operating temperatures from -65°C to +1200°C and MTBF exceeding 1 million hours.
• Platinum Resistance Temperature Detectors (RTD) Wire-wound and thin film platinum RTDs meeting IEC751, DIN 43760, and EN 60751 standards for aerospace air, fuel, and oil temperature measurement with accuracy up to ±0.15°C.
• Nickel Resistance Temperature Detectors (RTD) MIL-DTL-7990D certified nickel RTDs Qualified Products List (QPL) approved for aerospace temperature measurement in liquid or gaseous media, with measurement range from -55°C to +322°C.
• Thermistors High accuracy aerospace thermistor probes with NTC (negative temperature coefficient) for cockpit, galley, and cabin air temperature applications with ultra-high resolution.
• Optical Pyrometers Non-contact optical pyrometers for high temperature turbine blade measurement from +400°C to above +1200°C, using thermal radiation detection technology and immune to EMI.
• Non-heated De-iced Total Air Temperature Sensors Passive de-iced TAT sensors using platinum resistance for ice crystal and low ice accretion conditions, operating from -85°C to +300°C with no power requirement.
• Heated De-iced Total Air Temperature Sensors Heated TAT sensors for aircraft air data systems with AC (115VAC) or DC (28VDC) power options, tested up to Mach 0.9 and compliant with MIL-P-27723-E and AS5562 icing standards.
• Intrusive Speed Sensors Variable reluctance intrusive speed sensors for engine, FMU, and APU applications with vibration capability exceeding 200g and operating temperatures up to +240°C at the body.
• Non-intrusive Speed Sensors Eddy current and capacitive non-contact speed sensors for industrial gas turbines with modular design, achieving weight as low as 35 grams and MTTF exceeding 40 million hours.
• Maintenance, Repair and Overhaul (MRO) Services Maintenance, Repair and Overhaul services on sensors and other engine components provided through 4 FAA FAR145, EASA part 145, TCCA and CAAC certified repair stations in France, UK, USA, Singapore and China.

Quantifiable outcome

• Over 1 billion flying hours accumulated by Auxitrol Weston sensors in service
• +7 more outcomes

Named customers16 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Proponent (Designated Service Partner)coreChannel Partner/ Reseller/ Distributor · 1 January 2003Designated Service Partner extending Auxitrol Weston's global service network worldwide to satisfy customer needs for aftermarket support
• Habco (Designated Service Partner)coreChannel Partner/ Reseller/ Distributor · 1 January 2003Designated Service Partner extending Auxitrol Weston's global service network worldwide to satisfy customer needs for aftermarket support
• OEM Services (AOG Support Partner)coreChannel Partner/ Reseller/ DistributorPartner for Aircraft on Ground (AOG) support providing emergency sensor replacement services - email [email protected], phone +33 1 72 02 23 23
• University of CambridgeminorStrategic or Co-development PartnerResearch collaboration with major engine OEM and University of Cambridge for advanced thermocouple lifing methodology development and understanding of degradation mechanisms in high temperature sensor materials

Scale indicators11 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Honeywell Aerospace: Honeywell Aerospace is a broad incumbent and the largest integrated aerospace sensor and avionics supplier, with overlapping portfolios in pressure, temperature, and air data sensors. Although it offers a much wider portfolio and bundles into larger avionics systems, it competes head-to-head with Auxitrol Weston on several OEM platforms.
• Safran Electronics & Defense: Safran's Electronics & Defense segment produces aerospace sensors, inertial systems, and instrumentation for civil and military platforms. It overlaps with Auxitrol Weston's defense and commercial aerospace sensor portfolios and operates a similarly broad global manufacturing and MRO footprint.
• Thales Avionics (including telemetry & sensors): Thales Avionics supplies sensors, flight management, and air data systems to commercial and military aerospace - broadly comparable to Auxitrol Weston's sensor portfolio and a competitor in pressure and inertial-sensing applications. Its defense and space presence overlaps with Auxitrol Weston's broader market segmentation.
• TE Connectivity (Aerospace, Defense & Marine): TE Connectivity's Aerospace, Defense & Marine division supplies high-reliability sensors, connectors, and harnesses for aerospace and defense platforms - directly comparable to Auxitrol Weston's integrated harness and thermocouple interconnection products. It competes for similar sockets on major OEM platforms and within the military supply chain.
• Sensata Technologies: Sensata Technologies is a broad incumbent sensor manufacturer with aerospace, industrial, and heavy-vehicle sensing, including pressure and temperature sensors that overlap with Auxitrol Weston's piezoresistive and RTD offerings. While aerospace is a smaller share of Sensata's mix, it competes in similar sensing categories and serves aerospace OEMs and Tier-1s.
• Collins Aerospace (RTX): Collins Aerospace is a broad incumbent offering extensive sensor, air data, and instrumentation portfolios that overlap with Auxitrol Weston across commercial and business jet platforms. As part of RTX, it competes through integrated avionics packages that may displace pure-play sensor suppliers on next-generation aircraft.
• Amphenol (Aerospace & Defense): Amphenol's Aerospace & Defense segment supplies harsh-environment sensors, interconnects, and specialty cables - directly comparable to Auxitrol Weston's integrated harnesses, thermocouple interconnections, and vibration/temperature sensor offerings. It serves a similar blue-chip OEM and defense customer base globally.

Direct peers

• Crane Aerospace & Electronics: Crane Aerospace is a direct peer in aerospace sensing, signal conditioning, and power systems, serving similar OEM and aftermarket customers across commercial, business jet, and defense aerospace. Like Auxitrol Weston, it operates as a TransDigm-style specialty aerospace components supplier emphasizing proprietary IP and sole/dual-source positions.
• Curtiss-Wright Corporation: Curtiss-Wright's Defense and Industrial segments compete with Auxitrol Weston in aerospace sensing, instrumentation, and embedded computing for defense and commercial platforms. Both supply high-reliability sensors and subsystem electronics into similar harsh-environment aerospace and defense applications.
• Meggitt (Parker Hannifin): Meggitt (acquired by Parker Hannifin in 2022) was a direct specialty aerospace sensors and thermal management peer, with comparable positions in temperature, pressure, and vibration sensing for engine and airframe applications. Overlapping customer base on Airbus, Boeing, and major defense platforms makes it a close comparable.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/auxitrolwestonmexico
• LinkedInlinkedin.com/company/auxitrol-weston

Compliance17 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries6 records

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 Auxitrol Weston