Castro Valley, California Flex Tax and Consulting GroupCastro Valley, CaliforniaFlex Tax and Consulting Group‘s Castro Valley, California, office address, phone number and information. Contact us We provide the exceptional service we'd want to experience ourselves. info@flextcg.com Call us Talk to a human. You are not going to hit a ridiculously long phone menu when you call us. +1 (415) 860-6288 Visit us Monday - Friday 10:00 a.m. - 6.00 p.m. (Appointment Only) CV: 2811 Castro Valley Blvd., Ste. 206, Castro Valley, CA 94546 Facebook-f