Support CSLI

Make a Donation

Through a tax-deductible donation, you can help preserve the beauty of Long Island's beaches and marine life while supporting our marine education programs. Donations of any size are welcome. All donors contributing $100 or more will be recognized in our annual report.
 

Become a Coastal Steward

Join a select group of individual donors and become a Coastal Steward by making a contribution of $1,000 or more. Coastal Stewards will be recognized on our website, in our annual report, our newsletters, our other printed materials, and on signage at the Marine Environmental Stewardship Center and our special events. Coastal Stewards will also receive a guided tour of our Marine Environmental Stewardship Center upon request and by appointment.


Donations by check can be made out to “Coastal Steward Long Island” and mailed to:
 

Coastal Steward Long Island

544 Jefferson Plaza #48 

Port Jefferson Station, NY 11776
 

Or, contribute now by clicking on the link below:

Pay with PayPal or a debit/credit card

Become a CSLI Corporate Sponsor

Corporate sponsors are corporations, businesses, and other organizations that support CSLI’s work restoring and preserving Long Island’s coastline through education, raising public awareness, and community action. If you would like to take part in educating the public—particularly our next generation—on marine conservation, while helping to preserve and restore Long Island’s beaches, we welcome you to become a Corporate Sponsor.


Membership Levels:

Silver: $2,500
Gold: $5,000
Platinum: $10,000


Corporate Sponsors will be recognized with: 

  • Company name and logo on our website
  • Prominent listing in CSLI’s Annual Report
  • Listing in newsletters and other printed materials
  • Company name and logo displayed at the Marine Environmental Stewardship Center and at CSLI Special Events
  • A guided tour of our Marine Environmental Stewardship Center upon request and by appointment 


Donations by check can be made out to “Coastal Steward Long Island” and mailed to:
 

Coastal Steward Long Island

544 Jefferson Plaza #48 

Port Jefferson Station, NY 11776
 

Or, contribute now by clicking on the “Donate Now” button above. 

Other Ways to Give

In-kind Donations

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We graciously accept in-kind donations such as bags for beach cleanups and more. Please view our wish list and contact us if you have resources to donate.

Volunteer Time

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We're always looking for volunteers to help keep our beaches pristine. Check out volunteer opportunities and upcoming events to participate.

Amazon Smile

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Amazon will donate 0.5% of the price of your eligible AmazonSmile purchases to Coastal Steward whenever you shop on AmazonSmile.