Founded in Cleveland in 1956, Reuter-Stokes manufactures detection and sensing technology for harsh environments, from nuclear reactor monitoring and radiation measurement to industrial flame detection and downhole drilling. Its detectors are installed in every operational boiling water reactor globally, while its Helium-3, Boron-10 and hybrid radiation sensors also serve security, research and space applications. The company marks 70 years of precision sensing in 2026 and operates with nuclear quality programs including ISO 9001:2015, 10 CFR 50 Appendix B and an ASME “N” Stamp.
10 CFR 50 Appendix B Quality Program
Compliance program
ISO 9001:2015
ASME "N" Stamp
NPT-type certificate holder
Registration
AS9100
ETL
ATEX
IECEx
NPT
Quality certification
femto-TECH, INCKnown in radiation measurement since 1986, femto-TECH, INC. is a Carlisle, Ohio manufacturer whose U.S.-made instruments have become fixtures in professional and government testing. The company’s long-lived equipment is still sent back for calibration decades after manufacture, while its staff also develops specialized monitoring systems for national laboratories and nuclear-reactor applications.FRANKLIN, OH
LND, IncSince 1964, Oceanside-based LND, Inc. has designed and manufactured gas-filled nuclear radiation detectors, supplying more than two million units worldwide for scientific, commercial and military applications. Its more than 1,000 detector designs include specialized instruments used in air-pollution monitoring, neutron-scattering research and space missions such as ExoMars. LND also develops custom detectors when standard designs do not meet a customer’s specifications.OCEANSIDE, NY
COTEMP SensingCOTEMP Sensing makes and tests temperature sensors for demanding industrial environments, from nuclear power plants to cryogenic hydrogen systems. The company combines more than 80 years of expertise with manufacturing sites across North America, Europe, and Asia, and has installed more than 50 million sensors worldwide. Its capabilities include specialized testing and an ISO 17025-certified calibration laboratory, including a 300mm instrumented wafer with 49 thermocouple measurement points for semiconductor applications.WEST CHESTER, PA
The Bionetics Corporation (Bionetics C.E.S.G.; formerly Intek, Inc.)Since Intek’s founding in 1976, the central Ohio operation now known as Bionetics C.E.S.G. has made precision thermal flow instruments and condenser-monitoring systems, while developing custom measurement solutions for demanding industrial, nuclear and aerospace applications. The Bionetics Corporation acquired Intek’s assets and retained key staff to carry forward the Rheotherm® and RheoVac® product lines, including instruments that have flown on NASA manned spacecraft and supported nuclear plants measuring radiation-hardened flows. Products are manufactured and calibrated in Ohio under an ISO 9001:2015-certified quality program.WESTERVILLE, OH