Industry · SIC 3825
Instruments For Meas & Testing of Electricity & Elec Signals
74 tracked issuers filing with the SEC under this industry classification.
Issuers
74
Recent filings
40
SIC code
3825
Industry overview
Instruments For Meas & Testing of Electricity & Elec Signals
Companies in SIC 3825 design and manufacture instruments that measure and test electricity and electronic signals, including oscilloscopes, spectrum and network analyzers, power meters, automated test equipment, calibration gear, and embedded sensing modules. Typical customers span utilities, defense and aerospace primes, automotive and EV platforms, semiconductor fabs, contract manufacturers, and R&D labs that demand precise, reliable data. Key risks center on component supply volatility, rapid obsolescence as signal speeds rise, export controls and ITAR/EAR limits, EMC and safety compliance, and liability tied to mission-critical performance. In 2024-2025 the sector is pivoting to higher-frequency RF for 5G-to-6G, EV power electronics using SiC/GaN, tighter factory automation, AI-driven analytics in test workflows, modular PXI/USB form factors, and greener designs that cut energy use. Stay ahead of these shifts by exploring SEC filings and updates on Earnings Feed.
Source: Earnings Feed research · Nov 23, 2025
Latest filings
- 144COHUCOHU INC6.9 KBSEC(opens sec.gov)
- 144TERTERADYNE, INC6.3 KBSEC(opens sec.gov)
- 144TERTERADYNE, INC7.4 KBSEC(opens sec.gov)
- 8-KFEIMFREQUENCY ELECTRONICS INC202.7 KBSEC(opens sec.gov)
- 8-KINTTINTEST CORP292.2 KBSEC(opens sec.gov)
- 144COHUCOHU INC6.8 KBSEC(opens sec.gov)
- 144TERTERADYNE, INC6.3 KBSEC(opens sec.gov)
- 144COHUCOHU INC5.7 KBSEC(opens sec.gov)
- 144COHUCOHU INC4.8 KBSEC(opens sec.gov)
- 144TERTERADYNE, INC6.2 KBSEC(opens sec.gov)
- 144COHUCOHU INC6.9 KBSEC(opens sec.gov)
- 144TERTERADYNE, INC6.2 KBSEC(opens sec.gov)
- 144TERTERADYNE, INC6.3 KBSEC(opens sec.gov)
- 10-QFEIMSEC(opens sec.gov)
- 8-KTRNSTRANSCAT INC154.3 KBSEC(opens sec.gov)
- 8-KFEIMFREQUENCY ELECTRONICS INC239.8 KBSEC(opens sec.gov)
- 144TRNSTRANSCAT INC4.3 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.10.1 KBSEC(opens sec.gov)
- 144TERTERADYNE, INC6.3 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.7.5 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.9 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.9 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.6.5 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.7.0 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.7.0 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.9 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.7.0 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.6.4 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.9 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144ITRIITRON, INC.5.8 KBSEC(opens sec.gov)
- 144COHUCOHU INC12.1 KBSEC(opens sec.gov)
- 144AEHRAEHR TEST SYSTEMS9.1 KBSEC(opens sec.gov)
- 144COHUCOHU INC6.8 KBSEC(opens sec.gov)
Featured issuers
- ACTERNA CORPCIK 0000030841
- ADE CORPCIK 0000884498
- ADEZA BIOMEDICAL CORPCIK 0000902482
- AEHR TEST SYSTEMSCIK 0001040470AEHR
- ALLIENT INCCIK 0000046129ALNT
- ANALOGIC CORPCIK 0000006284
- APPLIED DIGITAL ACCESS INCCIK 0000919048
- ARTEST CORPCIK 0001116467
- ASECO CORPCIK 0000896645
- ASTRO MED INC /OLD/CIK 0000717836
- BOONTON ELECTRONICS CORPCIK 0000013191
- CASCADE MICROTECH INCCIK 0000864559
Classification
- SIC code
- 3825
- Total issuers
- 74
- Recent filings
- 40