Posted in Business & Finance, Information Technology, Organizations, Schools & Education ABSI stands for; ABSI stands for American Business Solutions, Inc. (various locations) ABSI stands for Ankle-Brachial Systolic Pressure Index ABSi stands for Adelphia Business Solutions (telecommunications) ABSI stands for Alpha Broadcast Services International (Adelaide, South Australia, Australia) ABSI stands for American Behavioral Studies Institute (Santa Ana, CA)