Okay, let's see if I can get all this without forgetting anything...

Bike:
Kestrel (Frame and Fork)
Shimano (Groupo)
Selle Italia (Saddle)
Speedplay (Pedals)
Bontrager (Stem)
Giant (Seat post & Bottle Cages)
Specialized (Handlebars)
FSA (Cranks & Headset)
Velocity (Rims)
American Classic (Front Hub)
Tune (Rear Hub)
DT Swiss (Spokes)
Pedros (Saddle Bag)
Cinelli (Cork Tape)
Polar (Speed/Cadence Sensors)
SRAM (Powerlink)
Salsa (Skewers)

(Can you tell I built my own bike?)

Clothing:
Nalini (Jersey, Shorts and Gloves)
Trek (Helmet)
Sock Guy (Socks (duh))
Sidi (Shoes)
Polar (HRM Strap)
Oakley (Sunglasses)