A longtime established firm (1971) - founded by former Esso (now dba ExxonMobil) employee with a chemical engineering doctorate with a strong background in computer science and a passion for process modeling and simulation - OLI initially developed flexible solution approaches for simple textbook style mathematical models that led to activity coefficients and simple electrolyte models and eventually predictive electrolyte modeling and the creation of highly rigorous property databanks for an ever increasing range of industrial applications and use cases. Today, OLI is a cutting edge chemical process technology and computer software company whose products and services save the worldwide Chemical Process Industry (CPI) and related industries millions of dollars every year. OLI's unique, powerful, and valuable software provides process, corrosion, and environmental chemistry solutions in the plant, in the lab, in the oilfield, and in the environment