These are companies which give perks related to being a member of some service, including subscription services.
airCloset
Avex
Celsys
CyberAgent
Dai-Ichi Life
Dreambed
Fisco
Fukushima Bank
Internet Infinity
Japan Investment Adviser
Jorudan
Kufu
Mainichi Comnet
Mercury
Minkabu The Infonoid
Nippon Television
Pia
Rakuten
Relo Group
Rizap Group
Round One
SBI Global Asset Management
Tokyotokeiba
U-NEXT
Value HR
WOWOW
Weathernews
Yamaha Motor