Conn. Gen. Stat. § 4-37h

Any person soliciting funds or any other thing of value for donation to a foundation by a person, firm, corporation or other entity shall, at the time of such solicitation or in any receipt for or other written confirmation of such donation, clearly and conspicuously disclose to the person, firm, corporation or other entity that the funds or other things of value donated are to be provided to the foundation and that the person, firm, corporation or other entity may request in writing that its identity be confidential, and upon such request, the identity of the person, firm, corporation or other entity shall not be publicly disclosed.