Contact Us


Ecology Project International is headquartered in downtown Missoula, Montana on the first floor of the historic Swift building, located at 315 S. 4th St. East. We also have program offices in Costa Rica, Galapagos, and Baja California Sur, Mexico. Feel free to stop by and say hello!

Our business hours are 9 am − 5 pm, Monday through Friday. Mountain Standard Time.

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Conservation for the next generation A nonprofit organization


  • phone +1 406.721.8784
  • fax +1 406.721.7060
  • mail 315 S. 4th St. East
    Missoula, MT 59801

Costa Rica

  • phone +506 4000.2727
  • fax 506.2221.6457
  • mail P.O. Box 202 - 3100 Heredia
    Santo Domingo, Costa Rica


  • phone +52 612.165.6561
  • fax 612.165.6560
  • mail Guillermo Prieto 1038
    e/Navarro y Encinas. Col. Centro
    La Paz B.C.S. C.P. 23000


  • phone 593.5.3013266
  • mailJuan Leon Mera y Scalesia
    Puerto Ayora, Isla Santa Cruz, Galapagos, Ecuador