baldwinhardware.com - Baldwin (premium door hardware)
emtek.com - Emtek (door and cabinet hardware)
kwikset.com - Kwikset (door knobs, levers and smart locks)
rockymountainhardware.com - Rocky Mountain Hardware (bronze door hardware)
schlage.com - Schlage (door knobs, levers and smart locks)
weiserlock.com - Weiser (Canadian lock brand; sold as Kwikset in the US)
yalehome.com - Yale (locks and smart locks)
acehardware.com - Ace Hardware
doitbest.com - Do it Best (hardware stores)
fergusonhome.com - Ferguson Home door hardware (handlesets.com now goes here)
hardwarestore.com - HardwareStore.com
homedepot.com - The Home Depot
lowes.com - Lowe's
houseofantiquehardware.com - House of Antique Hardware (vintage and reproduction hardware)
nostalgicwarehouse.com - Nostalgic Warehouse (vintage-style door hardware)
rejuvenation.com - Rejuvenation (period door hardware and lighting)
simpsonshardware.com - Simpson's Hardware
doorlocksdirect.com - Door Locks Direct (door locks and hardware)
popularhardware.com - Popular Hardware (commercial door hardware)
taylorsecurity.com - Taylor Security & Lock (locksmith supplies)