Donate to HCAS: Donations: Click Here Donate Online NOTE: Visa & Mastercard Only! The Howard County Autism Society would not function without the generous donations of individuals, families, businesses, local government, and foundations. Supporting organizations include: Howard County Department of Citizen Services, The Horizon Foundation, The Columbia Foundation, and through employee matching programs, Microsoft Corporation and the Fannie Mae Office of Corporate Giving. In addition numerous families and professionals have contributed to our work through financial and in-kind donations. The Howard County Chapter of the Autism Society of America is a non-profit organization that is tax-exempt as a 501(c)3 charity. Your membership dues and donations to the chapter support our mission of advocacy and public awareness. All donations are tax deductible. Click Here Donate Online NOTE: Visa & Mastercard Only! If you would prefer to make a donation to the Chapter by mail, please send a check to The Howard County Autism Society, 10280 Old Columbia Rd Suite 215, Columbia, MD 21046-2378.