List of Sub-Industries
SIC Code Sub-Industry Companies
3821 Laboratory Apparatus and Furniture 7
3822 Automatic Controls for Regulating Residential and Commercial Environments and Appliances 5
3823 Industrial Instruments for Measurement, Display, and Control of Process Variables; and Related Products 21
3824 Totalizing Fluid Meters and Counting Devices 1
3825 Instruments for Measuring and Testing of Electricity and Electrical Signals 17
3826 Laboratory Analytical Instruments 31
3827 Optical Instruments and Lenses 6
3829 Measuring and Controlling Devices, Not Elsewhere Classified 34
Member Companies

This list is made from self-reported SIC codes that companies file with the SEC.

Country Exchange Ticker Name Market Cap ($MM)
US NasdaqGS TXG 10x Genomics, Inc.
US NasdaqGM MASS 908 Devices Inc.
FR ENXTPA ALATI ACTIA Group S.A.
US NYSE AME AMETEK, Inc.
BR BOVESPA A1ME34 AMETEK, Inc. - Depositary Receipt (Common Stock)
US NasdaqCM AEHR Aehr Test Systems, Inc.
US NYSE A Agilent Technologies, Inc.
BR BOVESPA A1GI34 Agilent Technologies, Inc. - Depositary Receipt (Common Stock)
US NasdaqGM ALNT Allient Inc.
JP TSE 7859 Almedio Inc.
US OTCPK AGIN American Graphite Technologies, Inc.
US ARCA SMAP Amplify ETF Trust - Amplify Small-Mid Cap Equity ETF
US NasdaqCM APM Aptorum Group Limited
US OTCPK ARYC Arrayit Corporation
US NasdaqCM ASTC Astrotech Corporation
US OTCPK AURT Attune RTD, Inc
PL WSE APS Automatyka-Pomiary-Sterowanie S.A.
US OTCPK AATC Autoscope Technologies Corporation
US NYSE AVTR Avantor, Inc.
US NYSE BMI Badger Meter, Inc.
US NYSE BIO Bio-Rad Laboratories, Inc.
US NYSE BIO.B Bio-Rad Laboratories, Inc.
US OTCPK BFNH BioForce Nanosciences Holdings, Inc.
US NasdaqCM BNGO Bionano Genomics, Inc.
US OTCPK BCHT Birchtech Corp.
US NasdaqGS BRKR Bruker Corporation
BR BOVESPA B2RK34 Bruker Corporation - Depositary Receipt (Common Stock)
US OTCPK BRUKP Bruker Corporation - Preferred Stock
US NasdaqGM CAMT Camtek Ltd.
CH SWX GAV Carlo Gavazzi Holding AG
US NasdaqCM CLIR ClearSign Technologies Corporation
US NasdaqGS CGNX Cognex Corporation
BR BOVESPA C2GN34 Cognex Corporation - Depositary Receipt (Common Stock)
US NYSE COHR Coherent Corp.
US NasdaqGS COHU Cohu, Inc.
US OTCPK CRAWA Crawford United Corporation
US NasdaqGS CTKB Cytek Biosciences, Inc.
BE ENXTBR DIE D'Ieteren Group SA
US OTCPK SIETY D'Ieteren Group SA - Depositary Receipt (Common Stock)
US NYSE DHR Danaher Corporation
AR BASE DHR Danaher Corporation - Depositary Receipt (Common Stock)
BR BOVESPA DHER34 Danaher Corporation - Depositary Receipt (Common Stock)
US NasdaqCM DAIO Data I/O Corporation
US NasdaqCM ELSE Electro-Sensors, Inc.
US NasdaqGM EYPT EyePoint Pharmaceuticals, Inc.
US OTCPK FLXT Flexpoint Sensor Systems, Inc.
US NasdaqCM FCUV Focus Universal Inc.
US NYSE FTV Fortive Corporation
BR BOVESPA F1TV34 Fortive Corporation - Depositary Receipt (Common Stock)
US NasdaqGM FEIM Frequency Electronics, Inc.
IN BSE 530343 Genus Power Infrastructures Limited
US NasdaqGS GEOS Geospace Technologies Corporation
FR ENXTPA GEA Grenobloise d'Electronique et d'Automatismes Société Anonyme
US OTCPK GIGAQ Gresham Worldwide, Inc.
FR ENXTPA ALGTR Groupe Tera SA
US OTCPK HTGMQ HTG Molecular Diagnostics, Inc.
US NasdaqGM HBIO Harvard Bioscience, Inc.
JP TSE 6866 Hioki E.E. Corporation
IN BSE 517174 Honeywell Automation India Limited
US NasdaqGS HURC Hurco Companies, Inc.
KR KOSDAQ 126700 HyVision System. Inc
CH SWX IFCN INFICON Holding AG
US OTCPK IFHLY INFICON Holding AG - Depositary Receipt (Common Stock)
US NasdaqGS ILMN Illumina, Inc.
BR BOVESPA I1LM34 Illumina, Inc. - Depositary Receipt (Common Stock)
IN NSEI INGERRAND Ingersoll-Rand (India) Limited
US OTCPK INIS International Isotopes Inc.
US NasdaqGS ITRI Itron, Inc.
JP TSE 6951 JEOL Ltd.
US NasdaqGM KEQU Kewaunee Scientific Corporation
JP TSE 6861 Keyence Corporation
US NYSE KEYS Keysight Technologies, Inc.
BR BOVESPA K1SG34 Keysight Technologies, Inc. - Depositary Receipt (Common Stock)
JP TSE 6570 Kyowa Corporation
CH SWX LEHN LEM Holding SA
US OTCPK LCTC Lifeloc Technologies, Inc.
US NasdaqGS MKSI MKS Inc.
BR BOVESPA M2KS34 MKS Inc. - Depositary Receipt (Common Stock)
US NasdaqGS MLAB Mesa Laboratories, Inc.
US NYSE MTD Mettler-Toledo International Inc.
BR BOVESPA M1TD34 Mettler-Toledo International Inc. - Depositary Receipt (Common Stock)
US NYSE MIR Mirion Technologies, Inc.
US NasdaqCM MSAI MultiSensor AI Holdings, Inc.
US NasdaqCM MSAIW MultiSensor AI Holdings, Inc. - Equity Warrant
US NasdaqGS NAUT Nautilus Biotechnology, Inc.
JP TSE 7731 Nikon Corporation
US OTCPK NINOY Nikon Corporation - Depositary Receipt (Common Stock)
US NasdaqGS NVMI Nova Ltd.
US OTCPK OPST OPT-Sciences Corporation
US NYSE ONTO Onto Innovation Inc.
US NasdaqCM OPXS Optex Systems Holdings, Inc
US NYSE OWLT Owlet, Inc.
US OTCPK OWLTW Owlet, Inc. - Equity Warrant
US NasdaqGS PACB Pacific Biosciences of California, Inc.
BE ENXTBR 015789273 Pantech SA
US NasdaqCM PRPO Precipio, Inc.
US OTCPK PBIO Pressure BioSciences, Inc.
US NasdaqGM QTRX Quanterix Corporation
US NasdaqGM QSI Quantum-Si incorporated
US NasdaqGM QSIAW Quantum-Si incorporated - Equity Warrant
US OTCPK QURT Quarta-Rad, Inc.
US NasdaqCM RPID Rapid Micro Biosystems, Inc.
US OTCPK RSCF Reflect Scientific, Inc.
US NYSE RVTY Revvity, Inc.
BR BOVESPA R1VT34 Revvity, Inc. - Depositary Receipt (Common Stock)
US NYSE ROK Rockwell Automation, Inc.
BR BOVESPA R1OK34 Rockwell Automation, Inc. - Depositary Receipt (Common Stock)
US NasdaqGS ROP Roper Technologies, Inc.
BR BOVESPA R1OP34 Roper Technologies, Inc. - Depositary Receipt (Common Stock)
US ARCA SPAB SPDR Series Trust - SPDR Portfolio Aggregate Bond ETF
US OTCPK SPOM SPO Global Inc.
FR ENXTPA DIM Sartorius Stedim Biotech S.A.
US OTCPK SRTOY Sartorius Stedim Biotech S.A. - Depositary Receipt (Common Stock)
US OTCPK SMIT Schmitt Industries, Inc.
US OTCPK SCND Scientific Industries, Inc.
US NasdaqGS SEER Seer, Inc.
US NYSE ST Sensata Technologies Holding plc
US NYSEAM SENS Senseonics Holdings, Inc.
CH SWX SENS Sensirion Holding AG
US OTCPK SIGL Signal Advance, Inc.
US OTCPK SSCFF Smartcool Systems Inc.
US ARCA KOOL Spinnaker ETF Series - North Shore Equity Rotation ETF
US NasdaqCM OPTX Syntec Optics Holdings, Inc.
US NasdaqCM OPTXW Syntec Optics Holdings, Inc. - Equity Warrant
US NasdaqGM SYPR Sypris Solutions, Inc.
JP TSE 6869 Sysmex Corporation
US OTCPK SSMXY Sysmex Corporation - Depositary Receipt (Common Stock)
US OTCPK TLIS Talis Biomedical Corporation
JP TSE 7740 Tamron Co.,Ltd.
JP TSE 7218 Tanaka Seimitsu Kogyo Co., Ltd.
US OTCPK TKOI Telkonet, Inc.
JP TSE 6627 Tera Probe, Inc.
US NasdaqGS TER Teradyne, Inc.
BR BOVESPA T2ER34 Teradyne, Inc. - Depositary Receipt (Common Stock)
TW TWSE 3030 Test Research, Inc.
US NYSE TMO Thermo Fisher Scientific Inc.
AR BASE TMO Thermo Fisher Scientific Inc. - Depositary Receipt (Common Stock)
BR BOVESPA TMOS34 Thermo Fisher Scientific Inc. - Depositary Receipt (Common Stock)
CA NEOE TMO Thermo Fisher Scientific Inc. - Depositary Receipt (Common Stock)
US OTCPK THMO ThermoGenesis Holdings, Inc.
US NYSE TT Trane Technologies plc
BR BOVESPA I1RP34 Trane Technologies plc - Depositary Receipt (Common Stock)
US NasdaqGM TRNS Transcat, Inc.
US NasdaqGS TRMB Trimble Inc.
BR BOVESPA T2RM34 Trimble Inc. - Depositary Receipt (Common Stock)
US OTCPK UCLE US Nuclear Corp.
US NYSEAM USBC USBC, Inc.
US NYSE VLTO Veralto Corporation
US NYSE VNT Vontier Corporation
US OTCPK VLAI Vulcain Corporation
US NYSE WAT Waters Corporation
BR BOVESPA WATC34 Waters Corporation - Depositary Receipt (Common Stock)
US OTCPK WELX Winland Holdings Corporation
JP TSE 6841 Yokogawa Electric Corporation
US OTCPK YOKEY Yokogawa Electric Corporation - Depositary Receipt (Common Stock)
US NYSEAM INTT inTEST Corporation