Legends of Puerto Rico, Inc.
- Interactive and researched, historical day or night guided walking tours. Nature sightseeing, and arts and craft festivals throughout the towns. Design your tour with a private tour guide.
- http://www.legendsofpr.com

AdvenTours
- Offers day/night hikes, backpacking trek, and bicycling adventures in El Yunque. Also bird watching, ecoyoga, kayak expeditions, coffee plantations, hiking, and islandwide ecotours.
- http://www.angelfire.com/fl2/adventours/

Tour Coop, Tours Puerto Rico
- Guide to incentive travel in the Island offering tours to the rainforest, hiking and kayaking.
- http://www.destinationpuertorico.com/

Sunshine Tours
- Located in Caguas. Provides service from the airport to the hotel, sightseeing and shopping trips.
- http://www.puerto-rico-sunshinetours.com

Puerto Rico Tour Company
- Jorge "George" López specializes in conducting private sightseeing tours for the visitor taking you to all of the popular locations.
- http://www.puertorico-tours.com/