Number of Private for All Industries in Middlesex County, CT was 6043.00000 Establishments in July of 2023, according to the United States Federal Reserve. Historically, Number of Private for All Industries in Middlesex County, CT reached a record high of 6043.00000 in July of 2023 and a record low of 3941.00000 in January of 1993. Trading Economics provides the current actual value, an historical data chart and related indicators for Number of Private for All Industries in Middlesex County, CT - last updated from the United States Federal Reserve on May of 2024.