- Advanced Micro Devices (AMD) (PMBus adopter)
- Analog Devices, Inc. (PMBus & SBS adopter)
- Cherokee International (PMBus adopter)
- CHiL Semiconductor Corporation (PMBus adopter)
- ColdWatt (PMBus adopter)
- Dell (PMBus & SBS adopter)
- Delta Electronics (PMBus adopter)
- Emerson Network Power Embedded Power [was Artesyn & Astec] (PMBus adopter)
- Ericsson Power Modules (PMBus adopter)
- Fairchild Semiconductor (PMBus adopter)
- Freescale Semiconductor (PMBus & SBS adopter)
- Fujitsu VLSI Ltd. (PMBus adopter)
- HiPro (PMBus adopter)
- Infineon [now includes Primarion] (PMBus adopter)
- Inspired Energy (SBS adopter)
- Integral Wave Technologies (PMBus adopter)
- Intel (PMBus & SBS adopter)
- International Rectifier (PMBus adopter)
- Intersil Corporation (PMBus & SBS adopter)
- iWatt (PMBus adopter)
- Lineage Power [was Tyco Electronics Power Modules] (PMBus adopter)
- Linear Technology (PMBus & SBS adopter)
- Maxim Integrated Products, Inc. (PMBus & SBS adopter)
- Micro Computer Control Corporation (MCC) (PMBus & SBS adopter)
- Microchip (PMBus & SBS adopter)
- Murata (PMBus adopter)
- N2Power (PMBus adopter)
- National Semiconductor (PMBus & SBS adopter)
- NXP [was Philips Semiconductors] (PMBus adopter)
- ON Semiconductor (PMBus adopter)
- Power Plaza (PMBus adopter)
- Primarion (PMBus adopter)
- Richtek
- Roal Electronics (PMBus adopter)
- RRC Power Solutions (PMBus & SBS adopter)
- Samsung Electro-Mechanics (PMBus adopter)
- Silicon Storage Technology (SST)
- STMicroelectronics (PMBus & SBS adopter)
- Texas Instruments (PMBus & SBS adopter)
- Unipower Corporation (PMBus adopter)
- Vicor (PMBus adopter)
- Volterra Semiconductor Corporation (PMBus adopter)
- Zilker Labs (PMBus adopter)
