Both conventional and stern drive azimuth Tug Boats of up to 65 tons bollard pull have been delivered to fully satisfied owners  and operators.   In addition tractor-tug designs have been developed and also designs of tugs with Voith Schneider propulsion system.   In this area, and thanks to his competitive advantages, hightening the permanent innovations introduced, ASENAV is in condition to compete successfully in the international market, having already exported also tugboats, nevertheless the internal market demand in Chile for these kind of vessels has been also permanent and up to now ASENAV has constructed them mainly for Chilean customers.

ASENAV is prepared to construct much larger and with higher bollard pull tugboats than the up to now constructed ones, being an example the "supply vessels" already constructed, with up to 212 tons bollard pull.

ASENAV is also not limited to the type of tugboats with conventional propulsions up to now constructed but prepared to construct tractor tugs with azimuthal or VOITH SCHNEIDER propulsion systems.