TWK

What TWK does

TWK-ELEKTRONIK GmbH is a German family-owned manufacturer of precision industrial sensors, headquartered in Düsseldorf and founded in 1962 by Theo W. Kessler. The company has been under Steinebach family stewardship since 1992, with second-generation Managing Directors Dr. Hannwelm Steinebach and Dr. Felix Steinebach joining the management in 2012 alongside additional family members responsible for product management (Robert Steinebach) and the Wedel engineering/manufacturing site (David Steinebach). TWK operates a wholly-owned development and manufacturing subsidiary, TWK-SENSORIK GmbH in Wedel (originally founded in 1979 as PPS Elektronik GmbH), giving the group two engineering and production sites in Germany.

The core product portfolio comprises rotary encoders (Drehgeber), inclination sensors (Neigungssensoren), displacement sensors and probes (Wegaufnehmer und Taster), vibration sensors (Vibrationssensoren), electronic cam switches (Nockenschaltwerke), rotor-hub sensors (Rotornabensensoren), and cable-extension sensors (Seilzugsensoren), supported by an accessories line. The technology base is built on MEMS sensors for inclination, acceleration, and rotation-rate measurement, combined with electronic multiturn detection and signal-processing techniques such as mathematical filtering to suppress acceleration and temperature artefacts. A significant share of the catalogue is certified for functional-safety use (SIL2, SIL3, PLd, PLe per ISO 13849 categories CAT 2/3/4, plus ATEX, E1, and UL listings), with interfaces covering CANopen Safety, PROFINET/PROFIsafe, EtherCAT/FSoE, BiSS-C, SSI, IO-Link, analog, and LoRaWAN outputs. TWK is an active member of the three principal industrial fieldbus consortia — PNO, ETG, and CiA — and contributes to the standardisation of those protocols.

TWK operates a B2B configure-to-order hardware sales model. Pricing is quote-based (not publicly listed), with a 5–10 minute quote turnaround via an online configurator and standard lead times of approximately 60 working days; a dedicated spare-parts shop and direct factory shipments via UPS Express Saver, air freight, or courier extend the channel mix. Revenue is generated exclusively from industrial customers (B2B only) across seven primary verticals: wind energy (rotor hub speed, yaw/pitch control, turbine monitoring), factory automation, mobile automation (AGVs, mobile robots, agricultural machinery), drive-by-wire, safety robotics (cobot joints, medical technology), heavy industry, and water/bridge/sluice construction. Distribution is direct to industrial buyers in roughly 30 countries across Europe, North America, Asia, the Middle East, Oceania, South America, and Africa, with marketing conducted through trade shows (WindEnergy Hamburg, SPS Nuremberg), the e-commerce site, and direct customer consultation.

Name

TWK

Legal name

TWK-ELEKTRONIK GmbH

Website

https://twk.de

Company type

Private

Founded year

1962

Operating status

Operating

Headcount range

101–250 employees

Short description

TWK-ELEKTRONIK GmbH is a German family-owned manufacturer of precision industrial sensors—rotary encoders, inclination, vibration, and displacement sensors with functional-safety certification—serving B2B customers in wind energy, factory automation, mobile automation, and safety robotics globally since 1962.

Ownership category

akta.pro rank

Product category

Industrial Sensors

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Measuring & Controlling Devices, Nec (3829)

akta.pro primary industry

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

akta.pro secondary industries

Condition Monitoring & Predictive Maintenance Instrumentation (Vibration/ultrasound, oil analysis sensors, IIoT monitoring) (IMAGAFAG), Shock, Vibration & Tilt Monitoring Devices (Impact Indicators, Data Loggers) (IMALAFAJ)

Keywords

• Industrial sensor manufacturing
• Rotary encoders
• Inclination sensors
• Functional safety sensors
• Position measurement devices

Headquarters

HQ city

Düsseldorf

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Sensor Hardware Sales: TWK generates revenue through the sale of industrial sensors including rotary encoders, inclination sensors, string potentiometers, vibration sensors, and associated accessories. Products are sold as configured-to-order units with pricing upon request. The company also offers spare parts through a dedicated online shop.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

TWK manufactures and sells industrial sensors for position, inclination, vibration, and speed measurement, including rotary encoders, inclination sensors, displacement sensors, vibration sensors, rotor hub sensors, cable extension sensors, and electronic cam switches. A core differentiator is the company's specialization in SIL2/PLd functional safety–certified sensors for hazardous and safety-critical applications. Products are built to order via an online configurator with quote-based pricing and individually inspected before shipping.

Product overview

TWK-ELEKTRONIK GmbH is a German industrial sensor manufacturer offering a comprehensive portfolio of precision sensors under the 'Supreme Sensoring' brand. The core product lineup consists of Drehgeber (rotary encoders) for rotational speed and position measurement, Neigungssensoren (inclination sensors) using MEMS technology, Wegaufnehmer und Taster (displacement sensors), Vibrationssensoren (vibration sensors), Nockenschaltwerke (cam switches), Rotornabensensoren (rotor hub sensors), Seilzugsensoren (cable extension sensors), and Zubehör (accessories). The product portfolio features specialized sub-products including Ring Encoders (LBBN/LBBT/LBEK/LBEN/LBBK), Kit Encoders (TBN/TMN/TRK42-E/TRT42-E), and Hohlwellen-Drehgeber (hollow shaft encoders ABB/ABE series). A significant portion of products carry SIL2/PLd safety certifications for functional safety applications. The company positions itself as a specialist in sensors with functional safety for sensitive hazardous areas, serving industries including wind energy, mobile automation, factory automation, heavy industry, and water/bridge/sluice construction.

Differentiator

Problem solved

Functional benefit

Products and services

• Drehgeber (Rotary Encoders) Rotary encoders for measuring rotational speed and detecting positions, available in incremental and absolute versions across various form factors and industrial protocols for industrial OEMs and automation customers.
• Ring Encoder LBBN / LBBT / LBEK / LBEN / LBBK Hollow shaft ring encoders offering electronic multiturn detection with resolution up to 22-bit, supporting CANopen Safety, PROFIsafe, and EtherCAT FSoE interfaces for safety-critical automation applications.
• Singleturn / Multiturn Rotary Encoders TRK / TRT58 Series SIL2/PLd certified rotary encoders for safety-critical position and speed monitoring, available in singleturn and multiturn configurations.
• Kit Encoder TBN / TMN / TRK42-E / TRT42-E Bearingless kit encoders with safety certifications designed for space-constrained industrial applications requiring integration without a dedicated bearing.
• Hollow Shaft Encoders ABB / ABE Series Hollow shaft encoders with resolution up to 23-bit, using BiSS-C and SSI interfaces for precision positioning applications.
• Neigungssensoren (Inclination Sensors) MEMS-based inclination sensors with optional acceleration output for tilt measurement in industrial applications such as mobile machines, wind turbines, and industrial automation.
• Inclination Sensors NBT / NBN Series MEMS-based inclination sensors available in 45mm, 65mm, and 90mm form factors with CANopen, CANopen Safety, PROFINET, and Analog interfaces for industrial tilt measurement.
• Wegaufnehmer und Taster (Displacement Sensors and Probes) Contactless and wear-free displacement sensors and probes for capturing absolute positions in industrial applications, available with various interfaces and measurement ranges.
• Absolute Displacement Sensor PWA Absolute displacement sensor with analog interface for measurement ranges up to 200mm in industrial positioning applications.
• Inductive Displacement Sensors IW Series Inductive displacement sensors (IW10, IW101, IW120, IW250, IW260, IWE250, IWE260, IWM300) with Analog, CANopen, IO-Link, and SSI interfaces in fully potted designs for harsh industrial environments.
• Potentiometric Displacement Sensors RH / RP Series Potentiometric displacement sensors (RH33, RP13) with measurement ranges up to 1000mm for industrial positioning applications.
• Magnetostrictive Displacement Sensor MPA Magnetostrictive displacement sensor supporting measurement ranges from 200mm to 6350mm for long-stroke industrial positioning applications.
• Vibrationssensoren (Vibration Sensors) MEMS-based vibration sensors for detecting acceleration, vibrations, and oscillations in industrial machinery for condition monitoring and predictive maintenance.
• Vibration Sensors NVA / NVT / NVW Series MEMS-based vibration sensors supporting Analog, CANopen, CANopen Safety, Relais, and LoRaWAN (wireless) interfaces for industrial condition monitoring.
• Nockenschaltwerke (Cam Switches) Electronic cam switches with high resolution and accuracy for position measurement and control in industrial automation applications.
• Electronic Cam Switches NOCA / NOCE / NOCN / NOCIO Series Electronic cam switches with up to 16-bit resolution and Analog, Relais, SSI, CANopen Safety, IO-Link, and Safety Relais interfaces for safety-critical position control.
• Rotornabensensoren (Rotor Hub Sensors) Precision rotor hub sensors for safe rotational-speed measurement using MEMS technology combining inclination and rotation-rate detection, eliminating the need for direct connection to the rotation shaft and using filter functions to minimize interference from accelerations and temperature fluctuations.
• Seilzugsensoren (Cable Extension Sensors) Cable extension sensors that convert linear movement to rotational motion for measurement lengths up to 60 meters in robust industrial housings.
• Cable Extension Sensors SWE / SWEK / SWF / SWH / SWL / SWM / SWG / SWR Cable extension sensors with measurement ranges from 3m to 60m, featuring removable encoders and robust aluminum housings with IP54/IP65 protection for harsh environments.
• Zubehör (Accessories) Electrical and mechanical accessories for TWK sensors, including connectors, cables, programming devices, and shaft couplings sold as standalone accessory items.

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• PNO (Profibus Nutzerorganisation)coreTechnology or IntegrationActive member in PNO driving standardization of PROFINET and PROFIBUS protocols. TWK participates in this organization to ensure their sensors integrate seamlessly with modern automation environments.
• ETG (EtherCAT Technology Group)coreTechnology or IntegrationActive member driving EtherCAT protocol standardization. TWK develops EtherCAT and FSoE (Fail-safe over EtherCAT) compatible sensors as part of this membership.
• CiA (CAN in Automation)coreTechnology or IntegrationActive member advancing CANopen and CANopen Safety protocol standardization. TWK produces CANopen Safety certified sensors as a result of this engagement.

Scale indicators2 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Balluff: German industrial sensor specialist covering position, inclination, and condition-monitoring sensors. Balluff competes with TWK across factory automation and mobile automation and serves overlapping OEM customers.
• Pepperl+Fuchs: German industrial sensor and explosion-protection specialist with a strong functional-safety portfolio. Directly comparable to TWK on safety-rated encoders and inclination sensors for hazardous-area and process-industry customers.
• ifm electronic: German manufacturer of industrial sensors and IO-Link connectivity, including position, inclination, and vibration sensors. Comparable to TWK in B2B configure-to-order distribution and factory-automation use cases.
• Wenglor Sensoric: German manufacturer of optoelectronic and inductive sensors with expanding presence in inclination and vibration sensing. Wenglor competes with TWK in factory and mobile automation customers.
• Turck: German industrial sensor and connectivity specialist active in position sensing and functional-safety applications. Turck overlaps with TWK in encoders, inclination sensors, and IO/protocol-based factory automation.
• SICK AG: Germany-based global leader in industrial sensors, including rotary encoders, inclination, and safety-rated sensors. SICK competes head-to-head with TWK across factory automation, wind, and mobile automation, and operates at meaningfully larger scale.
• Baumer Group: Swiss-German manufacturer of sensors, encoders, and instrumentation for factory automation. Baumer's encoder and inclination portfolio overlaps directly with TWK's product range and customer verticals.
• Dr. Johannes Heidenhain GmbH: German manufacturer of high-precision rotary encoders and angle measurement solutions. Heidenhain is the benchmark premium encoder supplier and directly overlaps with TWK's Drehgeber line in factory automation and wind applications.
• Hansford Sensors: UK-based specialist in industrial vibration sensors and condition-monitoring instrumentation. Directly comparable to TWK's MEMS vibration-sensor line for predictive-maintenance use cases.
• Kübler Group (Fritz Kübler): German Mittelstand manufacturer of rotary encoders and slip rings. Closest direct peer to TWK in encoder specialization, similarly family-influenced and Germany-based.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 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 TWK