Home Premium Content Progressive Computing celebrates 20 years in business Premium ContentSmall BusinessTechnologyWestchester Progressive Computing celebrates 20 years in business By Sam Barron - February 28, 2013 Progressive Computing, one of the largest IT companies in Westchester, recently celebrated its 20th anniversary. This content is for Westfair Online members only. Please Sign in / Join to view this content. Become a member by Registering Here.