Annual IT Establishment Counts by Region in Total IT
| | U.S. TOTAL |
| | 1990 |
| Establishments in thousands | 139.11 |
| | U.S. TOTAL |
| | 1991 |
| Establishments in thousands | 152.682 |
| | U.S. TOTAL |
| | 1992 |
| Establishments in thousands | 163.376 |
| | U.S. TOTAL |
| | 1993 |
| Establishments in thousands | 172.717 |
| | U.S. TOTAL |
| | 1994 |
| Establishments in thousands | 184.664 |
| | U.S. TOTAL |
| | 1995 |
| Establishments in thousands | 202.284 |
| | U.S. TOTAL |
| | 1996 |
| Establishments in thousands | 220.575 |
| | U.S. TOTAL |
| | 1997 |
| Establishments in thousands | 243.289 |
| | U.S. TOTAL |
| | 1998 |
| Establishments in thousands | 272.407 |
| | U.S. TOTAL |
| | 1999 |
| Establishments in thousands | 297.507 |
| | U.S. TOTAL |
| | 2000 |
| Establishments in thousands | 321.26 |
| | U.S. TOTAL |
| | 2001 |
| Establishments in thousands | 335.921 |
| | U.S. TOTAL |
| | 2002 |
| Establishments in thousands | 336.098 |
| | U.S. TOTAL |
| | 2003 |
| Establishments in thousands | 331.725 |
| | U.S. TOTAL |
| | 2004 |
| Establishments in thousands | 330.387 |
| | California |
| | 1990 |
| Establishments in thousands | 20.638 |
| | California |
| | 1991 |
| Establishments in thousands | 24.475 |
| | California |
| | 1992 |
| Establishments in thousands | 25.786 |
| | California |
| | 1993 |
| Establishments in thousands | 26.876 |
| | California |
| | 1994 |
| Establishments in thousands | 28.077 |
| | California |
| | 1995 |
| Establishments in thousands | 31.592 |
| | California |
| | 1996 |
| Establishments in thousands | 33.204 |
| | California |
| | 1997 |
| Establishments in thousands | 34.724 |
| | California |
| | 1998 |
| Establishments in thousands | 39.876 |
| | California |
| | 1999 |
| Establishments in thousands | 43.474 |
| | California |
| | 2000 |
| Establishments in thousands | 43.777 |
| | California |
| | 2001 |
| Establishments in thousands | 44.748 |
| | California |
| | 2002 |
| Establishments in thousands | 45.184 |
| | California |
| | 2003 |
| Establishments in thousands | 44.008 |
| | California |
| | 2004 |
| Establishments in thousands | 42.252 |