Reuter-stokes, Llc

Name

Reuter-stokes, Llc

Legal name

Reuter-Stokes, LLC

Website

https://reuter-stokes.com

Company type

Private

Founded year

1956

Operating status

Operating

Ownership category

akta.pro rank

Product category

Industrial Radiation and Flame Detection Sensors

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Irradiation Apparatus Manufacturing (334517)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Radiation Detection Instruments & Systems (Portal monitors, spectrometers, contamination monitors) (EUAKAIAK)

akta.pro secondary industry

Reactor Vessel, Internals & Primary Circuit Components (RPV, piping, pumps, valves) (EUAKADAE)

Keywords

• Radiation detection sensors
• Nuclear reactor instrumentation
• Flame sensing technology
• Downhole drilling detectors
• Harsh environment sensors

Headquarters

HQ city

Twinsburg

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Radiation Detection Hardware Sales: Manufacture and sale of neutron detectors, gamma radiation sensors, and radiation monitoring equipment for nuclear, homeland security, and research applications. Products include Helium-3 proportional counters, Boron-10 detectors, and hybrid detectors.
2. Flame Sensor Hardware Sales: Sale of industrial flame sensors including Flame Tracker and Flame Tracker Dry 325 models for gas turbines, hydrogen combustion, and industrial burner monitoring.
3. Downhole Sensor Systems Sales: Gamma sensors, neutron detectors, and orientation modules for MWD/LWD and wireline drilling applications. Custom design and manufacturing services for specific downhole requirements.
4. Nuclear Instrumentation Systems: Complete nuclear instrumentation solutions including neutron flux monitoring detectors, fission chambers, ionization chambers, gamma thermometers, and traversing in-core probes for BWR, PWR, and SMR reactors.
5. Engineering and Technical Services: Custom design, engineering support, outage planning, on-site troubleshooting, and product repair services for nuclear instrumentation customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Reuter-Stokes designs and manufactures harsh-environment detection hardware including Helium-3 and Boron-10 radiation detectors for nuclear reactor monitoring, homeland security, and research applications; Silicon Carbide optical photodiode flame sensors for gas turbines and industrial burners; and downhole gamma sensors, neutron detectors, and orientation modules for MWD/LWD/Wireline oil and gas drilling operations. The company also provides custom design, engineering support, outage planning, on-site troubleshooting, and product repair services for its instrumentation customers.

Product overview

Reuter-Stokes is a precision detection technology company manufacturing harsh environment sensors for radiation measurement, nuclear reactor monitoring, flame detection, and downhole oil & gas drilling applications. The portfolio includes four core product lines: Nuclear Instrumentation (neutron and gamma detectors for BWR, PWR, and SMR reactors), Radiation Measurement & Monitoring (Helium-3, Boron-10, and hybrid radiation detectors), Flame Sensors (Flame Tracker and Flame Tracker Dry 325 for gas turbines), and Downhole Drilling Detectors (gamma sensors, neutron detectors, and orientation modules for MWD/LWD/Wireline). The company also offers a Helium-3 Product Configurator digital tool for customizing over 600 detector options. These products are sold as specialized hardware sensors and instruments, with no software-as-a-service, API, or AI/ML offerings mentioned.

Differentiator

Problem solved

Functional benefit

Products and services

• Nuclear Instrumentation Complete suite of in-core and ex-core neutron and gamma radiation detectors for Boiling Water Reactor (BWR), Pressurized Water Reactor (PWR), and Small Modular Reactor (SMR) operators, engineered to avoid unplanned shutdowns and ensure timely startups, rapid issue resolution, and effective outage delivery alignment.
• Neutron Flux Monitoring Detectors (NFMS) Fission Chambers, Ionization Chambers, and Proportional Counters designed for neutron flux monitoring in Small Modular Reactor (SMR) and Pressurized Water Reactor (PWR) applications.
• Local Power Range Monitors (LPRM) Miniature fission chambers for local and average power range monitoring in Boiling Water Reactor (BWR) designs, conforming to ASME Boiler and Pressure Vessel Code Section III.
• Wide Range Neutron Monitor (WRNM) Combines the functionality of Source Range Monitors (SRM) and Intermediate Range Monitors (IRM) into a single solution for wide range neutron monitoring from source level to approximately 10% of rated reactor power.
• Movable In-Core (MIC) Detector Movable detector introduced in 1968 for Pressurized Water Reactor utilities, designed to map thermal neutron flux in the water gap between adjacent fuel bundles, available in right- and left-handed models and custom lengths.
• Traversing In-Core Probe (TIP) Gamma and neutron Traversing In-Core Probes for LPRM sensor calibration and axial flux mapping in Boiling Water Reactors, featuring mechanical drive equipment, tubing, and guide tube assemblies.
• Gamma Flux Monitoring Detectors Gamma Thermometers and Scintillation Detectors designed for gamma flux monitoring in nuclear reactors.
• Radiation Measurement & Monitoring Helium-3, Boron-10, and hybrid radiation detectors for homeland security, nuclear safeguards, neutron scattering research, and reactor monitoring applications.
• Helium-3 Proportional Counters High sensitivity neutron detectors with moderate operating voltage and excellent spectral resolution, mean time before failure greater than 100 years, with helium leak checking to less than 1x10⁻⁹ cc/sec.
• Boron-10 Detectors Neutron detectors with exceptional neutron sensitivity and excellent gamma rejection capabilities, ideal for neutron detection in gamma-saturated environments, customizable for spent nuclear fuel measurements.
• B10Plus+ Hybrid Detector Hybrid detector combining Helium-3 and Boron-10 for improved gamma rejection and sensitivity, applicable for safeguard systems, handheld neutron detection, and road gauging applications.
• Flame Sensors Industrial flame sensing technology for gas turbines, hydrogen and hybrid-fuel combustion systems, and industrial burner applications, featuring Silicon Carbide optical photodiode technology with over 500 million operating hours of accumulated fired operation.
• Flame Tracker Water-cooled flame sensor (models RS-FS-9001, RS-FS-9004, RS-FS-9006) with response time under 0.025 seconds, operating temperatures from -20°F to +300°F (or 455°F with water/air cooling), providing 4-20 mA industry-standard output signal for gas turbine and industrial burner applications.
• Flame Tracker Dry 325 (FTD 325) Flame sensor (models RS-FS-9009-03 and RS-FS-9010-03) with remote electronics eliminating the need for water cooling, response time under 0.175 seconds, cool end temperature range -51°C to 140°C, hot end to 325°C for industrial flame monitoring applications.
• Downhole Drilling Detectors Sensors and detectors for Measurement-While-Drilling (MWD), Logging-While-Drilling (LWD), and Wireline applications, designed to withstand high temperatures, shocks, and vibrations for precise formation evaluation and directional measurements in oil and gas drilling.
• Downhole Gamma Sensors Downhole gamma sensors for gross counting, spectral, and density gamma sensing with Sodium Iodide scintillators, shock survivability to 1,000 g, random vibration rating of 20 grms, and operating temperatures to 200°C (392°F) for oil and gas drilling applications.
• Downhole Neutron Detectors Downhole neutron detectors for gross counting and neutron porosity detection, available in drilling application sensors (0.75 in. to 1.00 in. diameter) and wireline application sensors (1.00 in. to 2.50 in. diameter), featuring patented anode suspension technology for oil and gas drilling applications.
• Orientation Modules Compact downhole survey technology available in Digital and Analog Fluxgate variants, designed to double mean time between calibrations with accurate inclination and azimuth survey data for directional drilling applications.
• Helium-3 Product Configurator Online interactive tool allowing configuration of over 600 Helium-3 detector options to exact specifications, with ability to customize gas mixtures and operating parameters for specific radiation detection applications.
• Engineering and Technical Services for Nuclear Instrumentation Custom design, engineering support, outage planning, on-site troubleshooting, and product repair services for nuclear instrumentation customers, supporting BWR, PWR, and SMR operators with installation and maintenance of radiation detection equipment.

Quantifiable outcome

• Mean time before failure (MTBF) greater than 100 years for Helium-3 detectors
• +5 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Crane CompanycoreOthers · 1 January 2025Crane Company (NYSE: CR) signed agreement to acquire Precision Sensors & Instrumentation (PSI) from Baker Hughes, which includes Reuter-Stokes, for approximately $1.06 billion (net of tax benefits). PSI expected to have 2025 sales of approximately $390 million. Transaction expected to close end of 2025 or early 2026 pending regulatory approvals.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Teledyne FLIR: Teledyne FLIR offers the identiFINDER handheld radiation detection product line and broader CBRNE/threat detection systems, competing with Reuter-Stokes in homeland security and radiation portal monitoring.
• Honeywell Process Solutions: Honeywell provides industrial flame detection, combustion control, and process safety instrumentation used in gas turbines and industrial burners — directly comparable to Reuter-Stokes' Flame Tracker and FTD 325 product lines within a much larger industrial portfolio.
• GE Hitachi Nuclear Energy: GE Hitachi designs BWR reactor systems and instrumentation, holding a complementary — and partially overlapping — position in neutron monitoring and core monitoring for the same Boiling Water Reactor customers where Reuter-Stokes is dominant.
• Crane Nuclear: Crane Nuclear, the acquirer of Reuter-Stokes' parent PSI segment, manufactures nuclear-qualified components, valves, and instrumentation for the same nuclear power plant customer base, with overlapping safety-critical instrumentation offerings.
• Thermo Fisher Scientific: Thermo Fisher offers radiation detection and identification instruments (RIIDs), portal monitors, and nuclear instrumentation as part of a broad scientific instruments portfolio, competing with Reuter-Stokes in homeland security and research segments.

Direct peers

• ORTEC (AMETEK): AMETEK's ORTEC division manufactures high-purity germanium and scintillation detectors, as well as nuclear instrumentation, directly competing in radiation measurement and monitoring for research, safeguards, and homeland security.
• Mirion Technologies: Mirion is the largest direct competitor in radiation detection and nuclear instrumentation, offering neutron and gamma detectors, dosimetry, and reactor monitoring systems overlapping directly with Reuter-Stokes' nuclear and homeland security product lines.
• Berthold Technologies: Berthold provides radiation measurement and detection instruments for nuclear power plants, homeland security, and research — directly comparable to Reuter-Stokes' Helium-3 and process radiation detection offerings in Europe and globally.
• Schlumberger (SLB): SLB is a major MWD/LWD downhole sensor and formation evaluation provider serving the same oilfield services customers as Reuter-Stokes' Downhole Drilling Detectors line, with overlapping gamma and neutron measurement capabilities.
• Saint-Gobain Crystals & Detectors: Saint-Gobain supplies scintillation crystals (NaI, LaBr3, SrI2) and detector assemblies used in gamma radiation detection — a direct upstream/component-level peer to Reuter-Stokes' Sodium Iodide scintillator-based downhole and nuclear sensors.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@reuter-stokes
• LinkedInlinkedin.com/company/reuter-stokes

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

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 Reuter-stokes, Llc