Allied Business Systems, LLC Allied Business Systems has been a leading supplier of technology for the Consumer Lending Industry since 1978. ABS is proud to provide COMPLETE loan management software solutions for all types of consumer lending. absSterling® is a flexible and configurable web-based solution which provides users with a simplified process to manage the entire customer lifecycle. From the branch level to the home office, absSterling helps to protect data, improve efficiency, simplify financial analysis and increase profitability. ABS also offers extensive Business Services that will enhance your business. With our products, services, and 24/7 technical support, we have it all!