Accounting & Tax Resources, Inc. has been assisting individuals and businesses with all of their accounting and tax needs since 1988. Based in the Denver Metro Area, ATRI's main client base is local, however it has clients in over 30 states in the U.S. as well. ATRI started out as a one-man operation and has evolved into a full-scale accounting firm. It's reputation is backed by its quality of work and high client satisfaction and retention.