Maui Transportation

Yelp review
Air Canada Airport Car Rentals Advantage    2  ** Service Information
Alaska Aloha 2 Hawaii Alamo  4 Bus Maps
American Airlines Car Rental in Hawaii AvisBudget 3 Bus Transit System
Continental Discount Hawaii Car Rental Dollar 2 SHUTTLES
Delta Airlines Costco Travel Enterprise 4 Lahaina Cannery Shuttle
Hawaiian LOCAL CAR RENTALS Hertz 2 Speedi Shuttle 
Island Air Aloha Rent A Car National Car Rental 4 LIMOUSINES
Mesa Airlines Bio-Beetle Thrifty 1.5 Carey 
US Airways Hawaiian Riders Maui Executive Transportation
Island Riders TAXIS
Kihei Rent A Car Kihei Taxi
Maui Car Rentals Maui Airport Taxi
Maui Classic Cruisers Maui Pleasant Taxi
Maui Cruisers Maui Rams
Word of Mouth Wailea Taxi
* Since there are fairly negative reviews at some of the Maui companies, review sites are included with recent ratings.
** I've had very good experiences with Advantage.
Rick's Tips   I've found best pricing at Major carriers through Costco, Discount Hawaii Car Rental, and Advantage. 
For money saving tips and links to travel search providers, see: Getting there at a reasonable cost.