V-Tech Services

Location: Philadelphia
2002 revenue: $8 million
Growth (1998-2002): 601%
CAGR: 63%
FT/PT employees (2002): 300/0

Thanh H. Nguyen worked as a busboy when he came to the U.S. from Vietnam in 1991. Four years later, he started this facilities-maintenance company when a customer whose table he was busing offered him a contract to clean movie theaters. Nguyen's favorite part about being in the inner city: a diverse work force. His least favorite part: high taxes.