Printing Center USA produces my yearly calendars and does an excellent job with high quality and fast turnaround!
I use Acratech for my tripod heads, and after 6 years, they have not let me down.
Hummingbird Hammocks makes the lightest and most packable hammock I have found. Great for a little nap when out exploring.
Nisi Filters offer solutions to filtering unique lenses like my Canon 17 tilt shift and Canon 11-24.
I use Custom USB Drives for longer travel trips when I want to have an extra set of back-ups of my images.