Today’s market size is based on the revenues earned by Voice Over Internet Protocol (VOIP) providers in 2010. VOIP saw a tremendous 194 percent growth from 2000 to 2010. This industry is expected to grow another 17.4 percent from 2010 to 2016.

Geographic reference: United States
Year: 2010
Market size:: $12.5 billion
Source: Phil Izzo, “Top 10 Thriving Industries,” The Wall Street Journal, May 16, 2011, available online here
Original source: IBIS World