Yes, but usually require an envelope. A 10x13 catalog-style envelope is the best for the job and can make it easy for you to send envelopes filled with materials security through the mail. This takes 2 stamps for 1oz and 15 cents worth of postage for each additional ounce.
In the case of using our direct mail mailing services, the answer is technically yes. You can send full size business folders through the mail (sometimes even without an envelope) depending on the mailing method and the entry code used. If you are interested in this option use the form at the bottom of this page to inquire further.