leslie b
Lakeshore Learning is one you may have seen. Also, Discount School Supply, and Kaplan Early Learning Company. If you google preschool supply companies you will find a lot of them including the ones I listed. The ones I listed are ones we use a lot so I know they are reputable. I'm sure any of these companies would send you a catalog if you want one.

jayne
The catalogs Leslie listed are great. You can also go to Costco.com and order a lot of what you need from there. I received a large grant last year and spent about half of it at Costco. My cribs, tables and chairs, shelves and cubbies AND my play structure and many of my outdoor toys all came from Costco. I estimate I saved about $3000 over buying from the preschool catalogs. I am a bargain hunter so I want to get the most bang for my buck.

S
We get all of our supplies from Discount School Supply and Oriental Trading