- 3Y Power Technology (PMBus adopter)
- ABB [now includes GE Industrial Solutions (GEIS)] (PMBus adopter)
- AcBel Polytech (PMBus adopter)
- Advanced Energy (AEI) [now includes Artesy, Excelsys, & SL Power Electronics] (PMBus adopter)
- Advanced Micro Devices (AMD) [now includes Xilinx] (PMBus adopter)
- Alpha & Omega Semiconductor (PMBus adopter)
- Analog Devices (ADI) [now includes Maxim, Linear Technology, and Volterra] (PMBus & SBS adopter)
- Applied Kilovolts [part of Adaptas Solutions] (PMBus adopter)
- Bellnix (PMBus adopter)
- CAES [Cobham Advanced Electronic Solutions] (PMBus adopter)
- Cincon (PMBus adopter)
- Cisco (PMBus adopter)
- Cosel (PMBus adopter)
- Delta Electronics (PMBus adopter)
- ETA-USA (PMBus adopter)
- Faraday Semi [part of TDK] (PMBus adopter)
- Flex Power Modules (PMBus adopter)
- Hewlett Packard Enterprise (HPE) (PMBus participant)
- Infineon [includes Primarion, International Rectifier, & Cypress Semiconductor] (PMBus adopter)
- Intel [now includes Altera] (PMBus & SBS adopter)
- Lattice Semiconductor (PMBus adopter)
- Maxim Integrated Products, Inc. [now part of Analog Devices (ADI); includes Volterra] (PMBus & SBS adopter)
- MaxLinear (PMBus adopter)
- MEAN WELL (PMBus adopter)
- Micro Computer Control Corporation (MCC) (SMIF & PMBus tools member)
- Microchip [includes Micrel & Atmel] (PMBus & SBS adopter)
- Monolithic Power Systems (MPS) (PMBus adopter)
- Murata Power Solutions (PMBus adopter)
- N2Power [part of Qualstar] (PMBus adopter)
- NXP (PMBus adopter)
- onsemi [includes Fairchild Semiconductor] (PMBus adopter)
- ProGrAnalog (SMIF & PMBus tools member)
- RECOM (PMBus adopter)
- Renesas [includes Intersil, Zilker Labs, & Integrated Device Technologies (IDT)] (PMBus adopter)
- RichTek Technology (PMBus adopter)
- Rivos (PMBus adopter)
- ROHM (PMBus adopter)
- Silergy (PMBus adopter)
- STMicroelectronics (PMBus & SBS adopter)
- Sysgration [was Etasis] (PMBus adopter)
- TDK-Lambda (PMBus adopter)
- Teledyne LeCroy (SMIF & PMBus tools member)
- Texas Instruments [includes National Semiconductor] (PMBus & SBS adopter)
- uPI Semiconductor Corp. (PMBus adopter)
- VeriSilicon (PMBus adopter)
- Vicor (PMBus adopter)
- Vishay (PMBus adopter)
- Xilinx [now part of Advanced Micro Devices (AMD)] (PMBus adopter)
- XP Power (PMBus adopter)
