- Maine State Planning Office
One of the most frequently asked questions about the Maine economy is "What are Maine's biggest industries?" This brief paper attempts to answer this question as well as provide some numbers for natural resource based industries and tourism. The report provide measures of Maine industries by employment, Gross State Product (the value added to the economy by an industry), and Personal Income (the dollar volume of income received by people working in the industries). The last table is a list of Maine's 50 largest private companies.