Contact Us GuideStream Charitable Gift Fund8050 Spring Arbor Rd.PO Box 580Spring Arbor, MI 49283Phone: 800.325.8975Fax: 517.750.2752Email: info@gscgf.orgPlease use the form below to contact us: For security reasons, please do NOT send sensitive information such as account numbers, social security numbers, balances etc. through the website.