Goin' Down Divin'
- Informal group specializing in scuba diving vacations, primarily in the Caribbean area for all levels of divers. Includes details and pricing on upcoming trips and past trip reports. Located in Mount Joy.
- http://www.goindowndivin.com

Nittany Divers
- A dive club at Penn State College lists information on courses, rentals and trips.
- http://www.nittanydivers.org

Washington Scuba Center
- Find information on instruction, travel, contact details and store hours of operation.
- http://www.washingtonscuba.com/

Susquehanna Scuba Center Inc.
- Danville based, with information on instruction, travel, local dive sites, and staff biographies.
- http://www.susquehannascuba.com/

Smokeys Divers Den
- Lancaster dive center with information on certification classes, travel opportunities, photo albums, dive site descriptions and reviews, and store hours.
- http://www.smokeysdiversden.com/

Dutch Springs Diving and Recreation Facility
- Bethlehem area lake with information on rates, hours of operation, facility rules, site map and driving directions.
- http://www.dutchsprings.com/

Downey Diving
- Includes information on classes, trips, and local dive sites along with contact information. Located in the Pittsburgh area.
- http://www.downdive.com/

Brian's Coral Reef
- Wexford dive center with instruction and travel information, along with contact details and hours of operation.
- http://www.brianscoralreef.com/

Blue Horizons Dive Center
- Philadelphia dive center with information on PADI classes, vacation travel, local dive sites, and contact details.
- http://www.bluehorizons.net/

FF Divers
- Sellersville shop has information on certification courses, travel excursions, an online newsletter, calendar of events, and hours of operation available.
- http://www.ffdivers.com/

Diver Services
- Conshohocken dive center with class details, staff biographies, calendar of events and hours of operation available.
- http://www.diverservices.com/

York Divers
- PADI center, with information on classes, equipment, and trips.
- http://www.yorkdivers.com/

Underwater World
- Philadelphia center offers courses through NAUI, PADI, YMCA, and TDI, along with details on dive travel.
- http://www.diveunderwaterworld.com

Splash Water Sports Scuba and Snorkelling Center
- PADI 5 star Instructor Development Center features information on instruction, travel, an online newsletter, contact details and hours of operation. Located in Pittsburgh.
- http://www.splashws.com

Diving Bell
- Philadelphia based dive center with information on classes and equipment, along with contact details and driving directions.
- http://www.divingbell.com

Ultimate Scuba Adventures
- Media based dive facility offering PADI and TDI instruction, equipment sales and service.
- http://www.ultimatescuba.com