D-Subminiature connectors are standard over a slew of manufacturers. The standard sizes are 9, 15, 25, 37, 50 Pin.
You can get datasheets for any of these connectors most anywhere as this is the most common connectors ever built.
Just a search on Google lists a few thousand sites on D-Sub connectors.
For starters, check:
Amphenol connectors
ITT connectors
etc...
Look under d-subminiature and you will find what you need.