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Please accept this invitation to donate to CSI or become a member. Joining CSI costs as little as $15 for students and $20 for adults. As a member you will receive our periodic newsletter in the mail or as a PDF sent to you. CSI never shares or sells our membership list to any other organization and we do not bombard you with donation requests throughout the year. We have just one or two fundraisers per year to support our work, which includes sending well-qualified representatives to the International Whaling Commission.

Membership categories:

  • $15 - Student or Senior (65+)

  • $20 - Regular

  • $30 - Contributing/Family

  • $50 - Supporting

  • $100 - Sustaining

  • $500 - Patron

Become a Member

Help us make a difference

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Thank you for joining us in whale conservation!

You may use PayPal to become a member or make a donation.

Paypal accepts credit card payments. You do not need a PayPal account.

Please click the "Donate" button to become a member or make a donation to CSI.

If you prefer to donate to CSI by mail, send payment to:


Cetacean Society International

c/o Brent Hall

460 Wallingford Road

Cheshire, CT 06410 USA

Please note that CSI honors your privacy and security. We will never share your name or personal information.



Your membership dues constitute tax deductible contributions as provided by law. If your employer has a matching grant program, please include the application form; this will double your donation to Cetacean Society International.  (Members outside U.S.A.: please send the equivalent of the values shown above in your local currency

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