Call Us Now: +1 (305) 576 4403

Connect with Us

THO Office 4770
Biscayne Blvd Suite 800
Miami, FL 33137, USA

+1 (305) 576 4403

What can we help you achieve today?

Contact Directory

  • To request classification or statutory certification services or to coordinate a survey please contact the Survey Management Department:
  • To check the survey status of your vessels, please contact the Records and Statistics Department:
  • To check the status of the full term certificates contact the Certification-control department:
  • To register a complaint about the services provided by us please contact our Quality Assurance Department:
  • For an enquiry about other services provided by us write to our service enquiry e-mail address:
  • To inquire about job opportunities write to:
  • If you are interested in representing us in your area, please write to

Request Classification Services

For requesting the classification services from IRS, please contact our survey management department Please write to for other services offered by International Register.