BoatUS contracts the services of 500 towing boats in 250 U.S. ports and provides their services to pre-paid subscribers of BoatUS towing services. Cruising sailors may wish to contact the towing contractors on their itinerary regarding available services. Service is also called TowBoatyU.S. and has acquired Vessel Assist.
Accepting a tow can land you unwittingly with a salvage claim. Here is one towing company's definition of the difference between towing and salvage.
In the event of a serious marine peril, you may want help from a salvage operation. You should be familiar with the terms of a salvage agreement, perhaps keeping one on board just in case. Here is a sample recommended by a towing service.
A clear explanation between the distinction between towing and salvage work under U.S. law.
Regional towing service in Rhode Island, USA.