AEC - Adventure Education Centers
- Spanish lessons with afternoon and weekend activities. Campuses in Arenal, Dominical and Turrialba.
- http://www.adventurespanishschool.com/

Combination Services
- Professor Estela Gomez specializes in teaching Spanish as a second language. Offers customized classes at your place of business, focusing on vocabulary and conversation for professionals in the workplace, health and social services, and environmentalists
- http://www.combinationservices.com/

Amistad Institute
- San Isidro. Spanish programs with options for activities, volunteers and internships. Also a camp for middle and high school student groups. Includes prices and contact information.
- http://www.amistadinstitute.net

COSI - Costa Rica Spanish Institute
- Offers classes in San José and at Manuel Antonio National Park (beach and rain forest) on the Pacific Coast. Airport pickup, optional homestays, email access, cultural activities.
- http://www.cosi.co.cr

Intercultura Costa Rica
- Heredia and Samara campuses. Teaches in a warm yet intellectually challenging environment, using the Communicative Approach. Cultural activities allow opportunity to come to know Costa Rica, its traditions and its rich cultural heritage.
- http://www.spanish-intercultura.com/

Centro Panamericano de Idiomas - CPI
- Information on group programs, academic credit, teaching methods, and costs. Campuses in Heredia, Monteverde, and Flamingo Beach.
- http://www.cpi-edu.com/