Supporting Principia financially is quick, easy, and convenient. Choose any of the methods below.
Make a gift via credit or debit card through our secure online giving form.
Call Gift Services to make a gift by credit card.
800.218.7746, ext 3523
Mail your check, payable to The Principia.
c/o Gift Services
13201 Clayton Road
St. Louis, MO 63131
Call Caleb King to make a gift by wire transfer.
Help provide a Principia education to future generations while still providing for your loved ones. Consider a gift to Principia as part of your estate planning.
Plan a Gift
Increase The Impact of Your Gift
Reliable and consistent recurring gifts help Principia plan appropriately for accomplishing its goals.
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Many employers offer corporate matching for their employees’ charitable contributions.
Principia Credit Card
Support Principia with your credit card purchases—and enjoy rewards, too!