Wesco - Industry Directory Are you already on the list? Do you need to update your information? Click On the button below and Fill out the form to request edits to your listings or to be included in our Directory. Click Here Contact Admin [contact-form-7 id=”37131″ title=”Contact form”] Go back to directory. Add to Address Book. Wesco Wesco Contact: Melissa Bolton Work 949 S Montana St Butte MT 59701-2837 work Work Phone: 406-782-2374work Work Fax: 406-782-2908workfax No Image Available