ABSTRACT This document contains a description of acid deposition-related research projects funded by the private sector during 1890@ 1981 and 1982. The projects listed are either being performed internally by the particular entity or contracted out to universities@ private firms@ etc. This is the first attempt at assembling an inventory of private sector-funded acid deposition research. Some of the summaries are incomplete because all desired information was not available from the performing or sponsoring institutions. In addition@ despite attempts to make this an exhaustive inventory@ it is possible that a few projects have been overlooked. Finally@ projects funded at less than $5@000 were not included in this survey.