Stefan Mayer Instruments
Stefan Mayer Instruments is a German manufacturer of precision fluxgate magnetometers, magnetic field cancelling systems, and permeability meters, serving research laboratories, electron microscopy facilities, MRI providers, aerospace/automotive users, and advanced research projects globally.
- Company typePrivate
- Founded2000
- HeadquartersDinslaken, Germany
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Stefan Mayer Instruments does
Stefan Mayer Instruments GmbH & Co. KG is a privately held German manufacturer of precision magnetic measurement instruments, founded circa 2000 and headquartered in Dinslaken, North Rhine-Westphalia. The company designs and produces three product families: fluxgate magnetometers and magnetic field sensors (including the Fluxmaster handheld unit, FLC3-70 3-axis sensor with high-temperature variant, FL1-100 low-noise sensor, FLC 100 miniature unit, and FAST AC induction coil sensor); magnetic field cancelling systems (MR-3 for electron microscopes and MK-1 for MRI/biomagnetic applications); and magnetic permeability meters (Ferromaster) for weakly magnetic materials, compliant with ASTM A342 and EN 60404-15 standards. Its core technology is proprietary fluxgate magnetometry achieving sub-nanotesla resolution and noise levels below 20 pT/√Hz at 1 Hz, with active magnetic field cancelling reaching 40 dB reduction at 50/60 Hz. The company has deployed more than 1,600 MR-3 systems worldwide.
The company sells its instruments through a global network of 12 authorized sales and service partners covering Japan, USA, Canada, China, Korea, Taiwan, France, Switzerland, Germany, Netherlands, and the Middle East, including exclusive arrangements in the USA/Canada (Candoo Systems) and Taiwan (Tecit). Revenue is generated via quote-based hardware sales, with additional custom system design work for specialized applications including International Space Station experiments, the ITER nuclear fusion project, and semiconductor fabrication facilities. End users span scientific research laboratories, electron microscopy facilities (SEM/TEM), MRI equipment manufacturers, aerospace and automotive testing, geophysics and paleomagnetism, and material testing. The company employs 7 people and is led by Managing Director Kai Maulwurf-Just; it is structured as a GmbH & Co. KG with general partner Stefan Mayer Verwaltungs GmbH, and remains self-funded with no disclosed outside investment.
Stefan Mayer Instruments firmographics
Firmographics- Name
- Stefan Mayer Instruments
- Legal name
- Stefan Mayer Instruments GmbH & Co. KG
- Website
- https://stefan-mayer.com
- Company type
- Private
- Founded year
- 2000
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Stefan Mayer Instruments is a German manufacturer of precision fluxgate magnetometers, magnetic field cancelling systems, and permeability meters, serving research laboratories, electron microscopy facilities, MRI providers, aerospace/automotive users, and advanced research projects globally.
- Ownership category
- akta.pro rank
Stefan Mayer Instruments industry classification
Industry- Product category
- Magnetic Measurement Instruments
- NAICS
- Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)
- SIC
- Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826)
- akta.pro primary industry
- Magnetic Sensors (Hall/Magnetoresistive/Compass) (HDAHALAC)
- akta.pro secondary industry
- Magnetic Resonance Imaging (MRI) Systems (HLAHABAC)
Keywords
Where Stefan Mayer Instruments is headquartered
LocationHeadquarters
- HQ city
- Dinslaken
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Stefan Mayer Instruments business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales
Revenue model
- Scientific Instrument Sales: Sale of precision magnetic measurement instruments including fluxgate magnetometers, magnetic field cancelling systems, and permeability meters. Products are sold directly and through authorized distribution partners worldwide.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Stefan Mayer Instruments product offering
Product offeringCore offering
Stefan Mayer Instruments designs and manufactures precision scientific instruments for weak magnetic field measurement. Its product portfolio comprises fluxgate magnetometers and magnetic field sensors (Fluxmaster, FLC3-70, FL1-100, FLC 100, FAST AC), magnetic field cancelling systems (MR-3 for electron microscopes and MK-1 for MRI scanners), and magnetic permeability meters (Ferromaster) for testing feebly magnetic materials. The company also provides custom system design for specialized applications including space, nuclear fusion, and semiconductor manufacturing.
Product overview
Stefan Mayer Instruments offers precision scientific measurement instruments organized in three core product families: Fluxgate Magnetometers and Sensors (including Fluxmaster, FLC3-70, FL1-100, FLC 100, and FAST AC Sensor), Magnetic Field Cancelling Systems (MR-3 and MK-1 for electron microscopy and MRI applications), and Magnetic Permeability Meters (Ferromaster). These instruments are used for weak magnetic field measurement, active magnetic shielding, and material permeability testing across scientific, industrial, and medical applications.
Differentiator
Problem solved
Functional benefit
Products and services
- Fluxmaster Hand-held fluxgate magnetometer for precise measurement of weak magnetic fields from 0.1 nT to 200 µT (DC to 1 kHz), featuring three selectable measurement ranges, 0.1 nT resolution, and analog voltage output. Designed for geomagnetic and EMI measurement applications.
- FLC3-70 Compact 3-axis fluxgate magnetometer for measurement of weak magnetic fields down to nanotesla range, with low power consumption (5 mA), noise < 3 nTpp, and extended operating temperature up to 175°C (HT version). Used for borehole orientation sensors, navigation, aerospace, and deep drilling tool applications.
- FL1-100 Low-noise fluxgate magnetic field sensor with sub-nanotesla resolution and exceptionally low noise (< 20 pT/√Hz at 1 Hz), available in ±10 to ±1000 µT measurement ranges and 0.5% calibration accuracy. Designed for high-precision applications including food metal detection, magnetic signature measurement, and paleomagnetic applications.
- FLC 100 Complete miniature fluxgate magnetometer with ±100 µT measurement range, low power consumption (2 mA), noise < 5 nTpp, and analog voltage output DC to 1 kHz. Designed for multi-sensor array systems.
- FAST AC Magnetic Field Sensor Induction coil sensor with 300 kHz bandwidth and high sensitivity, featuring measurement range > 5,000 nTpp, noise < 0.7 nT RMS, and analog output for oscilloscope or data acquisition systems.
- MR-3 Magnetic Field Cancelling System 3-axis magnetic field cancelling system for electron microscopes (SEM and TEM), featuring DC to 1 kHz frequency range (FAST version up to 10 kHz), with typical 40 dB field reduction at 50/60 Hz and 20 dB at 250/300 Hz. Used in electron microscopy, nanotechnology, and biomagnetic applications. More than 1,600 systems deployed worldwide.
- MK-1 Magnetic Field Cancelling System Single-axis magnetic field cancelling system for MRI scanners and biomagnetic applications, with simultaneous DC to 10 Hz and AC magnetic field cancellation, supporting up to 3 sensors and filters. Available in single-axis and 3-axis versions.
- Ferromaster Magnetic Permeability Meter Magnetic permeability meter for measurement of relative magnetic permeability µr of feebly magnetic materials in the range 1.001 to 1.999, compliant with ASTM A342 and EN 60404-15 standards, calibrated to NPL reference standards. Features 3.5 digit LC display, automatic zeroing, and easy operation.
Quantifiable outcome
- More than 1600 MR-3 magnetic field cancelling systems deployed worldwide
- +3 more outcomes
Companies that use Stefan Mayer Instruments
Customer profileSegments4 records
Ideal customer profiles5 records
Stefan Mayer Instruments technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Stefan Mayer Instruments partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered standard and key.
- ARF Japan Corp.standardSales representative for Stefan Mayer Instruments products in Japan, handling distribution and customer support for the Japanese market.
- Candoo Systems Inc.keyExclusive sales and service partner for Stefan Mayer Instruments in USA and Canada, providing comprehensive distribution and support services for North American customers.
- JLAM (Joachim Leuker Automation und Messtechnik)standardSales and service partner handling automation and measurement technology products for the German market.
- Lintronics Technology LtdstandardSales representative for gauge and sensor products in China, distributing Stefan Mayer Instruments magnetic field sensors and measurement instruments.
- Magnon InternationalstandardPartner specializing in paleomagnetic instruments, representing Stefan Mayer Instruments products in the paleomagnetism research sector.
- MD-ECS (Engineering, Consulting Services, M. Daraei)standardOfficial sales and service partner for Stefan Mayer Instruments magnetic field cancelling systems in China, Hong Kong, the Netherlands, and Middle East countries, including engineering and consulting services.
- Measure Point GmbHstandardSales and service partner specializing in MRI projects, providing installation and support services for magnetic field cancelling systems in medical imaging applications.
- Nano PioneerstandardSales and service partner for Stefan Mayer Instruments products in Korea, handling distribution and customer support for the Korean market.
- Tecit Co., Ltd.keyExclusive sales representative for Stefan Mayer Instruments products in Taiwan, providing comprehensive distribution services for the Taiwanese market.
- VIB & TECstandardSales and service partner operating in France and Switzerland, providing regional distribution and support for magnetic measurement products.
- Vitatech Electromagnetics LLCstandardPartner specializing in passive and active electromagnetic shielding solutions, offering complementary products and integration services for Stefan Mayer Instruments customers.
- W.A.V.E. Ingenieurbüro Dr. StöbenerstandardPartner specializing in vibration measurement and active vibration isolation systems, providing complementary solutions for laboratories using electron microscopes and other vibration-sensitive equipment.
Scale indicators3 records
Recent moves5 records
Expansion highlights4 records
Stefan Mayer Instruments competitors and assessment
Company assessmentDirect peers
- AREPOC s.r.o. Slovak manufacturer of fluxgate magnetometers and magnetic field sensors for space research, geomagnetic applications, and satellite missions. AREPOC's space-focused fluxgate portfolio is directly comparable to Stefan Mayer's FLC3-70 and FL1-100 sensors, particularly for aerospace and scientific satellite customers.
- Metrolab Technology SA: Swiss manufacturer of precision magnetic field measurement instruments, including NMR and Hall-based magnetometers used in MRI and physics research. Metrolab directly competes in the high-precision laboratory magnetometer space that Stefan Mayer serves with its Fluxmaster and FLC-series products.
- GEM Systems, Inc. Canadian supplier of high-sensitivity magnetometers and gradiometers (including Overhauser and potassium systems) for geophysics, archaeology, and mineral exploration. Overlaps with Stefan Mayer on geomagnetic measurement applications served by the Fluxmaster handheld magnetometer.
- Bartington Instruments: UK-based specialist manufacturer of fluxgate magnetometers and magnetic field sensors for scientific, industrial, and defense applications. Bartington is the closest direct competitor to Stefan Mayer Instruments, offering overlapping product families (handheld and OEM fluxgate sensors) to similar research, aerospace, and laboratory customers.
- TW Electronics (UK): UK-based supplier of fluxgate magnetometer sensors, including the widely used Mag-01/Mag-03 series, for industrial, laboratory, and security applications. TW Electronics is a direct competitor in fluxgate sensor technology and serves overlapping markets such as geomagnetic measurement and EMI testing.
Emerging players
- Magnicon GmbH: German specialist in SQUID-based magnetometer systems and ultra-low-noise magnetic measurement for research and biomagnetic applications. Magnicon is an adjacent technology peer — overlapping with Stefan Mayer on biomagnetic and high-sensitivity magnetic measurement use cases but using a different sensing modality (SQUID vs. fluxgate).
- MR Instruments, Inc. US supplier of MRI-compatible devices and magnetic field measurement accessories for clinical and research MRI environments. Overlaps with Stefan Mayer's MK-1 MRI fringe-field compensation system in the medical imaging customer segment.
Regional players
- Heimann Sensor GmbH: German manufacturer specializing in thermal (non-fluxgate) magnetic sensors and infrared detector arrays for industrial and automotive applications. While its sensing technology differs, it operates in overlapping precision-sensor niches for industrial and automotive customers in Germany and Europe.
Broad incumbents
- FOERSTER Group: German-headquartered industrial group offering a broad portfolio of magnetic testing, eddy current, and material characterization instruments. FOERSTER overlaps with Stefan Mayer's permeability measurement business and serves many of the same materials testing customers, but at significantly greater scale and product breadth.
- Lake Shore Cryotronics, Inc. US-based manufacturer of precision magnetic measurement and materials characterization instrumentation, including Gaussmeters, Hall sensors, and cryogenic probe stations. Lake Shore competes broadly with Stefan Mayer in laboratory magnetic field measurement, particularly where customers require integrated materials research platforms.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Stefan Mayer Instruments social profiles
Digital presenceStefan Mayer Instruments financial estimates
Financial estimateRevenue estimate
Valuation estimate
Stefan Mayer Instruments leadership team
Management profileNumber of profiles
Profiles1 record
Stefan Mayer Instruments funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Stefan Mayer Instruments M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Stefan Mayer Instruments
What does Stefan Mayer Instruments do?
Stefan Mayer Instruments designs and manufactures precision scientific instruments for weak magnetic field measurement. Its product portfolio comprises fluxgate magnetometers and magnetic field sensors (Fluxmaster, FLC3-70, FL1-100, FLC 100, FAST AC), magnetic field cancelling systems (MR-3 for electron microscopes and MK-1 for MRI scanners), and magnetic permeability meters (Ferromaster) for testing feebly magnetic materials. The company also provides custom system design for specialized applications including space, nuclear fusion, and semiconductor manufacturing.
Is Stefan Mayer Instruments a public or private company?
Stefan Mayer Instruments is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Stefan Mayer Instruments founded?
Stefan Mayer Instruments was founded in 2000. It employs 1 to 10 people.
Where is Stefan Mayer Instruments based?
Stefan Mayer Instruments is headquartered in Dinslaken, Germany, in the Europe region.
How does Stefan Mayer Instruments make money?
One revenue line is on record: scientific Instrument Sales.
Who are Stefan Mayer Instruments's main competitors?
Direct peers on record are AREPOC s.r.o., Metrolab Technology SA, GEM Systems, Inc., Bartington Instruments and TW Electronics (UK). Emerging players are Magnicon GmbH and MR Instruments, Inc.. Heimann Sensor GmbH is listed as a regional player. Broad incumbents are FOERSTER Group and Lake Shore Cryotronics, Inc..
Does Stefan Mayer Instruments have an API?
No public API is recorded for Stefan Mayer Instruments.
What industry is Stefan Mayer Instruments in?
Stefan Mayer Instruments's product category is Magnetic Measurement Instruments. Its primary akta.pro industry code is HDAHALAC, Magnetic Sensors (Hall/Magnetoresistive/Compass), with a secondary code of HLAHABAC, Magnetic Resonance Imaging (MRI) Systems. Its NAICS code is 334515 and its SIC code is 3825.