Contact Us

Diamond would like to hear from you! Whether it is for a freight quote or a lease opportunity, we are excited to hear from you. Please e-mail, call us or click on a link to get more information about Diamond Transportation System, Inc.


Main: 262-554-5400
Toll Free: 800-927-5702


Accounting: 262-898-8610
Brokerage: 262-554-4058
Dispatch: 262-554-5412
Permits: 262-554-5394
Recruiting: 262-598-2821
Sales: 262-554-4057

*Please send Verifications to the number listed for Recruiting

Postal address

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