U.S. Census Bureau

Statistics of U.S. Businesses: 2004:
NAICS 54 - Professional, scientific, & technical services
Illinois

By detailed employment size By year By industry
 
Illinois - Professional, scientific, & technical services - by Employment Size of Enterprise
Introductory text includes scope and methodology. Table includes only establishments with payroll. Nonemployers are shown separately. For descriptions of column headings and rows (industries), click on the appropriate underlined element in the table.
Employment size of enterprise Firms Estab-
lish-
ments		 Paid
employees		 Annual
payroll
($1,000)
All firms 35,931 37,837 343,894 21,160,060
Firms with no employees (as of March 12) 6,778 6,791 0 486,579
Firms with 1 to 4 employees 19,066 19,080 36,012 1,535,884
Firms with 5 to 9 employees 4,463 4,490 28,998 1,299,074
Firms with 10 to 19 employees 2,568 2,621 33,725 1,745,928
Firms with 20 to 99 employees 1,949 2,189 63,671 3,710,133
Firms with 100 to 499 employees 559 743 47,780 3,194,147
Firms with 500 employees or more 548 1,923 133,708 9,188,315

 
 
Illinois - Professional, scientific, & technical services - by Year
Introductory text includes scope and methodology. Table includes only establishments with payroll. Nonemployers are shown separately. For descriptions of column headings and rows (industries), click on the appropriate underlined element in the table.
More
data		 Year Firms by employment size of enterprise Paid employees by employment size of enterprise
Total20 + 100 +500 + Total20 + 100 +500 +
link to 2005 detail 2005 36,609 8.2% 3.0% 1.5% 350,082 72.1% 54.1% 40.2%
link to 2004 detail 2004 35,931 8.5% 3.1% 1.5% 343,894 71.3% 52.8% 38.9%
link to 2003 detail 2003 35,078 8.6% 3.1% 1.5% 353,625 72.6% 54.8% 41.4%
link to 2002 detail 2002 34,831 8.6% 3.1% 1.5% 334,517 70.7% 52.2% 38.2%
link to 2001 detail 2001 34,053 8.7% 3.1% 1.5% 353,262 72.2% 53.9% 39.8%
link to 2000 detail 2000 33,743 8.6% 3.1% 1.5% 355,199 72.9% 55.0% 41.3%
link to 1999 detail 1999 33,442 8.5% 3.0% 1.5% 337,445 72.0% 53.9% 40.8%
link to 1998 detail 1998 32,797 8.4% 2.9% 1.4% 311,755 70.5% 51.6% 38.1%

 
 
Illinois - Professional, scientific, & technical services - by Subsector
Introductory text includes scope and methodology. Table includes only establishments with payroll. Nonemployers are shown separately. For descriptions of column headings and rows (industries), click on the appropriate underlined element in the table.
NAICS
code		 Industry title
(with link to definition) 		Firms by employment size of enterprise Paid employees by employment size of enterprise
Total20 + 100 +500 + Total20 + 100 +500 +
54 Professional, scientific, & technical services 35,931 8.5% 3.1% 1.5% 343,894 71.3% 52.8% 38.9%
541 Professional, scientific, & technical services 35,931 8.5% 3.1% 1.5% 343,894 71.3% 52.8% 38.9%

All-sector table By detailed employment size By year By industry Data in formats for downloading Other data for NAICS 54

Source: Statistics of U.S. Businesses Questions?