| Top 13 Largest Employers | Total Emp. | Nature of Business |
| 1. Centegra Health System | 3093 | Healthcare/hospital |
Centegra Memorial Medical Center
Route 14 and Doty Road,
Woodstock, IL 60098
P: 815-338-2500; http://www.centegra.org/ | | |
Centegra Memorial Medical Center, South Street
527 W. South Street,
Woodstock, IL 60098
P: 815-338-2500; http://www.centegra.org/ | | |
Centegra Northern Illinois Medical Center
4201 Medical Center Drive,
McHenry, IL 60050
P: 815-344-5000; http://www.centegra.org/ | | |
| 2. McHenry County | 1300 | County Government |
2200 N. Seminary Ave.,
Woodstock, IL 60098
P: 815-334-4000; http://www.co.mchenry.il.us/ | | |
| 3. Follett Library Resources, Inc. | 1159 | Wholesale library & classroom books |
1340 Ridgeview Drive,
McHenry, IL 60050
P: 815-759-1700, F: 815-759-0545; http://www.follett.com/ | | |
Follett Software Co.
1391 Corporate Drive,
McHenry, IL 60050
P: 815-344-8700, F: 815-344-8774; http://www.fsc.follett.com/ | | Education, Software, Solutions |
| 4. Affinia Under Vehicle Group | 910 | Distribute, sell, & market brake & chassis products |
4400 Prime Parkway,
McHenry, IL 60050
P: 815-363-9000; http://www.affiniagroup.com/ | | |
| 5. Intermatic Incorporated | 850 | Mfr. Consumer & industrial energy control products |
7777 Winn Road,
Spring Grove, IL 60081
P: 815-675-2321, F: 815-675-7055, http://www.intermatic.com/ | | |
| 6. Mercy Health System | 775 | Regional Healthcare provider |
Mercy Harvard Hosptial
901 Grant Street,
Harvard, IL 60033
P: 815-943-5431; http://www.mercyhealthsystem.org/
With medical centers in:
Algonquin, Cary, Crystal Lake, Fox River Grove, Harvard, Lake in the Hills, McHenry, Richmond, and Woodstock | | |
| 7. Brown Printing | 752 | Printer of magazines and catalogs |
11595 McConnell Road,
Woodstock, IL 60098
P: 815-338-6750, F: 815-206-6266; http://www.bpc.com/ | | |
| 8. McHenry County College | 654 | Educational institution |
8900 U.S. Highway 14,
Crystal Lake, IL 60012
P: 815-455-3700; http://www.mchenry.edu/ | | |
| 9. Knaack Manufacturing Co. | 500 | Manufacturer of jobsite, truck and van tool storage equipment |
420 Terra Cotta Ave.,
Crystal Lake, IL 60014
P: 815-459-6020, F: 815-459-9097; http://www.knaack.com/, http://www.weatherguard.com/ | | |
| 10. Sage Products Inc. | 481 | Manufacturer of interventional patient hygiene products |
3909 Three Oaks Road,
Cary, IL 60013
P: 815-455-4700, F: 815-455-5599; http://www.sageproducts.com/ | | |
| 11. Snap-On Tools Co. | 450 | Distribution customer service, and repair centers |
3011 E. Route 176,
Crystal Lake, IL 60014-2299
P: 815-479-6500, F: 815-479-6523; http://www.snapon.com/ | | |
| 12. Wells Manufacturing Co. | 450 | Manufacturer of continuous cast iron bar |
2100 W. Lake Shore Drive,
Woodstock, IL 60098
P: 815-338-3900, F: 815-338-3950; http://www.wellsmanufacturing.com/ | | |
| 13. Aptar Group Inc. | 440 | Designer and manufacturer of consumer dispensing systems |
475 W. Terra Cotta Ave., Suite E,
Crystal Lake, IL 60014
P: 815-477-0424, F: 815-477-0481; http://www.aptargroup.com/ | | |
Seaquist Perfect Dispensing
1160 Silver Lake Road,
Cary, IL 60013
P: 847-639-2124, F: 847-639-2142; http://www.seaquistperfect.com/ | | |
Seaquist Perfect Molding LLC
4900 Prime Parkway,
McHenry, IL 60050
P: 847-462-3900, F: 847-344-9059; http://www.seaquistperfect.com/ | | |
