Who is U.S. Mailbox, Inc.? Mark Winner and Bobby Moore have over 15 years experience in the construction industry, and 5 years of extensive experience in the sales, installation and repair of apartments and commercial mail centers. We have experience in dealing with the United States Post Office rules and regulations required for any new installations and/or repairing of mailboxes. We have the knowledge and the expertise to fulfill your needs quickly and efficiently and meet all U.S. Postal requirements.