The IIMS is allied to the following Marine Surveying Organisations

ACMS USA www.acms-usa.com
AIMS Australia www.aimsurveyors.com.au
AISI Indonesia www.aisi-indonesia.org
AMSBC Canada www.amsbc.org
SIMSA Sweden www.simsa.com
AFEXMA France  
BSA Baltic States  

The IIMS is also allied to the following Organisations

Institute of Diagnostic Engineers UK www.diagnosticengineers.org
ICOMIA   www.icomia.com