Be an associate

Become an active part of our association. By becoming an associate of ONCA your regular contributions will help us to progress in the achievement of our goal “To protect the biological and cultural inheritance of this natural eden”

To be an associate follow these steps:

1º Download our associate form, fill it and choose the amount and method of payment.

2º Send the form to or to the address

Calle Cerro Butrera, 24
zip code 28223
Pozuelo de Alarcón
Madrid – España

3º If you want to use credit card or PayPal, choose one of the subscription options below and click on the Subscription button, where you will access paypal and will be able to do a secure transaction.


Payment options

Thanks a lot for your support.

Information of our activities

If you cant afford to be a associate or make a donation, but wish to know about our work and be informed of our projects and activities, write to us at to show your interest and we will maintain you informed with our digital journal.

You also can participate in the social networks, helping us to expand our activities and by sharing your own skills and knowledge, enriching our projects.

If you want to collaborate as volunteer from home or by coming to the jungle you are welcome. Our journey will never go far without the support of people like you, who share our ideals and are willing to make a change.

Make a donation

If you cant afford to be an associate, there is another way to collaborate with ONCA in its struggle for the protection , conservation, rehabilitation of wildlife and work with the local ethnicities.
You can do it by making a single donation, which will give us much needed support to reach our objetives. Each small bit helps.

How to Donate:

1- Write to us at and tell us how you want to donate.

2 - Click the Donate button above to access PayPal and have the option to donate any amount you like by credit card or paypal account.


Thanks a lot for your support.