Cancun Diving.net
- Provides details of Padi and Naui scuba diving courses and certification programs.
- http://www.cancundiving.net/

ScubaPal
- Offers scuba diving and PADI certification courses.
- http://scubadivingcancun.com/

Scuba Cancun
- Medium size, family run dive center offering scuba diving in Cancun and Cozumel, cavern diving, fishing, scuba courses and underwater photography.
- http://www.scubacancun.com.mx

Personal Diving.com
- Specializes in scuba diver training, open water, cavern and cave diving tours. PADI certification.
- http://www.personaldiving.com

Oceanus Live Aboard
- Scuba diving expeditions to Chinchorro, Alacranes in Mexico, and Maria la Gorda in Cuba from Cancun.
- http://www.oceanus.com.mx

Manta Divers
- PADI Member Scuba Center offering ocean diving trips, scuba courses and underwater photography/video. Also, offers dive trips to Cozumel and cavern/cenote diving.
- http://www.mantadivers.com

Blue Peace Diving
- Provides local area ocean diving as well as cenote diving.
- http://bluepeacediving.com