Sensirion

What Sensirion does

Sensirion AG is a Swiss fabless-to-IDM sensor manufacturer headquartered in Stäfa, Switzerland, founded in 1998 and publicly listed on the SIX Swiss Exchange (ticker: SENS). The company designs and sells a broad portfolio of environmental and flow sensors — including humidity, temperature, CO2, VOC/NOx, particulate matter, hydrogen, gas flow, and liquid flow sensors — built on its proprietary CMOSens platform, which integrates the sensing element with signal-processing electronics on a single CMOS chip. The portfolio spans 13+ product categories organized into families such as SHT4x, SCD4x, SGP4x, SPS30, SFM4xxx, SLD3x, and the SEN6x/SEN62 multi-parameter platforms, supplemented by evaluation kits (SEK-SensorBridge, SEK-SGP4x), gas metering modules (SGM5304), and — following the December 2025 acquisition of Qmicro — standalone micro gas chromatographs (DynamiQ-X).

Sensirion serves six horizontal customer segments: medical technology (ventilators, CPAP, smart inhalers, infusion), industrial/semiconductor/logistics, life sciences/diagnostics, HVAC and appliances, consumer electronics, and mobility/automotive — including emerging applications in EV battery safety, hydrogen fuel cells, humanoid robots, and brake-by-wire systems. It monetizes almost exclusively through hardware sales of components and modules, distributed via a global network that includes Future Electronics, regional channel partners and representatives, and direct sales through sensirion.com, supported by a developer platform (developer.sensirion.com, GitHub) and evaluation kits for prototyping. Pricing is quote-based for enterprise volume orders; the company does not publicly disclose unit pricing.

In FY2025, Sensirion reported CHF 342.4M in revenue with 29.2% organic growth and an 18.5% adjusted EBITDA margin, exceeding guidance and consensus. Management guided FY2026 revenue to CHF 335-360M with mid-to-high teens EBITDA margins. Strategic positioning rests on dense global certifications (ATEX, IECEx, cQPSus, EN 17526, AEC-Q100, RESET, WELL), twenty-plus years of accumulated sensor IP, and acquisitions of IRsweep (optical spectroscopy, 2021) and Qmicro (MEMS gas chromatography, 2025) that extend the company from component supplier to integrated analytical instrument provider.

Name

Sensirion

Legal name

Sensirion AG

Website

https://sensirion.com

Company type

Public

Founded year

1998

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Sensirion AG is a Swiss public sensor company that designs and sells CMOSens-based environmental and flow sensors — humidity, temperature, CO2, VOC/NOx, particulate matter, hydrogen, gas and liquid flow — serving medical, industrial, HVAC, consumer electronics, and automotive OEMs globally.

Ownership category

akta.pro rank

Product category

Environmental & Flow Sensors

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Analytical Laboratory Instrument Manufacturing (334516), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Other Measuring and Controlling Device Manufacturing (334519), Totalizing Fluid Meter and Counting Device Manufacturing (334514)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826), Totalizing Fluid Meters & Counting Devices (3824), Auto Controls For Regulating Residential & Comml Environments (3822)

akta.pro primary industry

Environmental Sensors (Temperature/Humidity/Gas/Air Quality) (HDAHALAD)

akta.pro secondary industries

Sensors & Feedback Devices (Pressure, Flow, Position, Encoders, Transducers) (IMAHAGAK), Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity) (IMAGAFAE), Industrial-Grade Sensors & Transducer Components (Discrete sensing elements, transducers, MEMS sensors) (IMAGAJAO)

Keywords

• Environmental sensors
• Flow sensors
• Gas sensing
• Humidity sensors
• CO2 sensors

Headquarters

HQ city

Stafa

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sensor Hardware Sales: Sensirion generates revenue primarily from the sale of physical sensor components and modules, including humidity, temperature, CO2, gas flow, liquid flow, and mass flow controllers. The company also offers standalone micro gas analyzers for industrial applications following the Qmicro acquisition.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Sensirion designs and manufactures high-precision environmental and flow sensors, including humidity, temperature, CO2, VOC/NOx, particulate matter, hydrogen, gas flow, liquid flow, and mass flow controllers. The portfolio also includes multi-parameter sensing platforms, evaluation kits, gas meter modules, and standalone micro gas analyzers (via acquired Qmicro), built on the proprietary CMOSens technology. These components and modules are integrated by manufacturers in medical, industrial, HVAC, consumer electronics, and mobility applications.

Product overview

Sensirion is a Swiss sensor company offering a comprehensive portfolio of environmental and flow sensing solutions. The product portfolio spans multiple categories including humidity sensors (SHT4x series), temperature sensors (STS4x), CO2 sensors (SCD4x), VOC/NOx sensors (SGP40/SGP41), particulate matter sensors (SPS30), gas flow sensors (SFM4xxx), liquid flow sensors (SLD3x), mass flow controllers (SFC5500), and hydrogen sensors (STC42A). These are organized into evaluation kits (SEK series) and integrated sensing platforms (SEN6x, SEN62). The portfolio also includes gas metering solutions (SGM5304) and micro gas analyzers from the acquired Qmicro brand. Sensirion's sensors are designed for applications across medical technology, industrial/semiconductor, life sciences, HVAC/appliances, consumer electronics, and mobility/automotive sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Qmicro by Sensirion: Micro gas analyzers for industrial applications using MEMS-based gas chromatography technology, developed by Qmicro which has been part of Sensirion since December 2025.
• Sensirion Automotive Solutions
• Sensirion Connected Solutions

Products and services

• SEN6x A multi-parameter environmental sensing platform combining multiple sensors in a compact form factor to measure up to six air quality parameters for indoor air quality applications.
• SHT4x Fourth-generation best-in-class humidity and temperature sensor providing high-accuracy measurements for a wide range of applications.
• SHT4xI A reliable 5V humidity sensor designed specifically for industrial applications requiring robust environmental sensing.
• SCD4x A compact CO2 sensor module that breaks size barriers in carbon dioxide sensing, enabling miniaturized implementations for indoor air quality and HVAC.
• SFM4xxx Pressure-resistant flow sensors designed for gas-mixing applications in industrial environments.
• STS4x State-of-the-art temperature sensing solutions providing high accuracy and reliability across applications.
• SFC5500 A versatile mass flow controller available through online distribution, enabling precise gas flow control in laboratory and industrial applications.
• STC42A

Quantifiable outcome

• Over 11 million gas meters installed globally with EN 17526 certification
• +2 more outcomes

Named customers1 record

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature4 records

Partnerships

Four partnerships are on record, tiered minor and core.

• ATMOminorOEM/ Whitelabel/ Licensing Partner · 11 June 2026ATMO integrated multiple Sensirion sensing solutions into its Atmotube PRO 2 portable air quality tracker, including the STCC4 CO2 sensor, SGP41 VOC/NOx sensor, SPS30 particulate matter sensor, and SHT40 temperature/humidity sensor.
• Future ElectronicscoreChannel Partner/ Reseller/ Distributor · 18 March 2026Future Electronics, a global distributor of electronic components, announced a new portfolio of Sensirion environmental sensors designed for indoor air quality monitoring. The sensors provide measurements for CO2, particulate matter, gases, humidity, and temperature, supporting energy-efficient and compliant air quality systems.
• QmicrocoreStrategic or Co-development Partner · 4 December 2025Sensirion acquired Qmicro, a Dutch micro gas analyzer specialist based in Enschede, The Netherlands, for an undisclosed amount. The acquisition expands Sensirion's gas sensing portfolio from components and modules to standalone micro gas analyzers for industrial applications, leveraging Qmicro's MEMS-based gas chromatography technology. Qmicro operates as a competence center for micro gas analyzers while benefiting from Sensirion's global marketing and sales network.
• IRsweep AGcoreStrategic or Co-development Partner · 10 May 2021Sensirion fully acquired IRsweep, a Swiss company specializing in infrared spectrometers. IRsweep's technology focuses on fast, high-resolution spectroscopic applications including industrial and research uses, expanding Sensirion's optical sensing technology portfolio.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Vaisala: Finnish specialist in environmental and industrial measurement, with strong positions in humidity, CO2, dewpoint, and gas concentration measurement. Closely comparable to Sensirion in high-precision humidity and gas sensing for industrial, HVAC, and life science markets.
• Figaro Engineering: Japanese specialist in semiconductor gas sensors for detecting combustible gases, VOCs, refrigerants, and air quality. Closely comparable to Sensirion's SGP series and refrigerant leak detection sensors, competing directly in residential and commercial gas detection.
• Membrapor: Specialty manufacturer of electrochemical gas sensors for industrial safety, environmental monitoring, and emissions. Direct competitor in gas detection sensor technology serving industrial and safety applications.

Broad incumbents

• ams Osram: Specialty sensor and optical solutions provider with strong presence in environmental, spectral, and biomedical sensing. Overlaps with Sensirion's IRsweep-derived optical spectroscopy and gas/flow sensing, particularly in industrial and medical applications.
• Texas Instruments: Major analog and embedded semiconductor supplier with a portfolio of temperature, humidity, and gas sensors integrated with microcontrollers. Comparable as a broad incumbent in industrial/environmental sensing, though sensors are a small fraction of TI's overall business.
• Honeywell International: Diversified industrial conglomerate with broad sensor and environmental monitoring offerings across building automation, process control, and gas detection. Overlaps with Sensirion in HVAC controls, gas metering, and industrial sensors, but as part of a much wider portfolio.
• Bosch Sensortec: MEMS sensor subsidiary of Robert Bosch offering environmental, motion, and smart sensors at massive scale into consumer electronics, automotive, and IoT. Directly comparable in humidity, temperature, gas, and pressure sensors, though serving broader end-markets with deeper customer relationships.
• Amphenol: Global interconnect, sensor, and antenna solutions provider with environmental and gas sensor offerings in automotive, industrial, and medical markets. Comparable in sensor-based measurement solutions though most known for connectors and cabling.
• STMicroelectronics: Global semiconductor manufacturer with a substantial MEMS and environmental sensor portfolio, including temperature, humidity, and pressure sensors. Comparable as a major CMOS/MEMS-based sensor competitor, though operating across a much wider semiconductor product set.
• Infineon Technologies: Leading semiconductor company with significant MEMS sensor presence in automotive, industrial, and consumer markets. Directly comparable pressure, gas, and flow sensor offerings, complemented by Infineon's broader power and automotive semiconductor portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/Sensirion
• Xx.com/sensirion
• Facebookfacebook.com/Sensirion
• LinkedInlinkedin.com/company/sensirion

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A3 records

Investments1 record

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

Frequently asked questions about Sensirion