Mazatlan Frank - Mazatlan Frank is a site that shows you tours done by him and his team, but also gives you some tips and hints about the towns around. - http://www.mazatlan-frank.com
Ole Tours - Offer different tours from buses, trolleys and also air conditioned vans, also can do private tours and service for cruise ship passengers looking for a shore excursion. - http://www.ole-tours.com/
Hudson Tours - Tour information for Mazatlan. - http://www.hudsontours.com
Mazatlan's Tour Guides Association - Offers bi-lingual driver guide and air conditioned van for half-day or full-day sightseeing. - http://www.mazinfo.com/tourguides
Vista Tours - Offering airport transfers and a variety of area tours. - http://www.vistatours.com.mx/