The sector of the U.S. economy that has been growing most strongly over the last decades is the Service Sector. The service sector includes all those who provide services instead of goods so, accountants, architects, computer programmers, consultants, doctors, hair stylists, lawyers, teachers and truckers to name but a few. The Census Bureau divides the Service Sector into eleven major categories and our market size today is one of those: Professional, Scientific and Technical Services, an industry whose revenues in 2009 represented 21.6% of all Service Industry revenues.

Over the period shown in the graph, 1998—2009, businesses providing professional, scientific and technical services saw their revenue grow by 85.3% which is 42.7% ahead of inflation.

Geographic reference: United States
Year: 1998 and 2009
Market size: $751.3 billion and $1,378.3 billion
Source: Services Annual Survey 2009, “Tables 1.1 Selected Service Industries – Estimated Revenue for Employer and Nonemployer Firms: 2005 through 2009,” and “Table 1.2 Selected Service Industries – Estimated Revenue for Employer Firms: 2005 through 2009,” pages 4 and 6, February 2011, available online here. Data in the graph are from earlier editions of this report series, links to which are available on a Census Bureau web page here.
Original source: U.S. Department of Commerce, Bureau of the Census