See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
This page covers the following companies:
Microchip Technology Inc.
- Microchip has multiple lineages of Wi-Fi chipsets, inherited from
- acquisitions of multiple companies having existing Wi-Fi products.
- 1998 - founded Microchip
- 2010 - acquired SST (802.11abgn Power Amplifiers)
- 2010 - acquired ZeroG Wireless (Wi-Fi 802.11 Chip)
- 2012 - acquired Roving Networks (Wi-Fi Chipset Vendor)
- 2012 - acquired SMSC (Wi-Fi SoC Media Processor)
- 2016 - acquired Atmel and Micrel (PR)
Currently it appears to offer several Wi-Fi chipsets:
- G2C543-1 - (inside RN171 WiFly module, FCC ID T9J-RN171) (originally designed by G2 Microsystems)
- MRF24WG0 (MAC/BB only) - 802.11bg (used with Airoha RFIC); FCC ID W7OMRF24WG0MAMB
- ZG2100 - 802.11b 2Mbps-only (obsolete)
- Microchip also offers a range of 802.11abgn+ac RF Power Amplifiers,
- used in many wireless routers: Microchip Power Amplifiers.
- Relabeled DM870 WiSoC as "jukeblox"
- bridgeco.com / bridgeco.net .
- DM870 (DM870A) - Media Processor (SoC) with 802.11bg MAC/BB jukeblox PBrief
- BridgeCo Eagle - WLAN RFIC (appears to be a rebadged Thomson 6201C)
- 2010 - Roving Networks acquired G2 Microsystems (Wi-Fi chipset vendor);
- 2012 - was acquired by Microchip 
- g2microsystems.com (archived website)
- 2004 - Founded by a group from Radiata (early Wi-Fi startup acquired by Cisco);
- 2010 - acquired by Roving Networks  which was subsequently acquired by Microchip.
- G2C501 (2006) 802.11b WiSoC + RTLS for tags/asset tracking
- G2C543 (2009) 802.11bg WiSoC for IoT, interface: SPI, SDIO, UART
- G2C547 (2008) 802.11bg WiSoC + RTLS/RFID; host interface: SPI, SDIO, UART
- zerogwireless.com (archive.org)
- 2006 - Founded
- 2010 - acquired by Microchip
- ZG2100 - "802.11b" (only 1 and 2Mbps, not the full standard)