Major Employers
To join the list of major employers with 250 employees or more, please contact us.
| Company | Industry | Employees |
|---|---|---|
| Fort Detrick Campus* | Army, NCI, and other tenants | 10,200 |
| Frederick County Public Schools | Public Education | 7,013 |
| Frederick Health | Comprehensive Health Care | 3,300 |
| Frederick County Government | County Government | 2,563 |
| Leidos Biomed / Frederick National Lab | Medical Research | 2,440 |
| Frederick Community College | Two-Year College | 1,313 |
| City of Frederick Government | Municipal Government | 905 |
| Thermo Fisher Scientific | Life Sciences Research | 766 |
| AstraZeneca | BioTech Manufacturing | 725 |
| Costco Wholesale | Wholesale Distribution Center and E-commerce Center | 725 |
| Mount Saint Mary’s University | Four-Year University | 682 |
| Legal & General America | Life Insurance Headquarters | 638 |
| NVR, Inc. | Home Building and Mortgage Banking | 630 |
| Lonza | Biological Products | 561 |
| Aldi Distribution Center and Retail | Retail Supermarket & Distribution | 552 |
| Kite Pharma | Life Sciences | 510 |
| YMCA of Frederick County | Recreation and Sports Center | 450 |
| STULZ Air Technology Systems, Inc. | Manufacturer, Commercial Air Conditioners and Dehumidifiers | 430 |
| National Emergency Training Center | US Fire Academy, FEMA, and other tenants | 400 |
| Music & Arts | Music Retailer and Headquarters | 396 |
| Plamondon Hospitality Companies | Hospitality (Hotels, Restaurants, and Restaurant Management) | 390 |
| Sheppard Pratt | Outpatient Mental Health | 376 |
| Pleasants Construction, Inc. | Construction and Paving | 360 |
| RR Donnelley | Business Documents | 350 |
| Maryland School for the Deaf | Educational Institution | 320 |
| Fitzgerald Auto Mall Frederick | Auto Dealership | 307 |
| Cian Diagnostics | Diagnostic Testing | 300 |
| R.W. Warner | Construction/Trade Contractor | 300 |
| Wright Manufacturing | Lawn Maintenance Technology | 283 |
| Homewood Retirement Centers | Retirement Community | 280 |
| Morgan-Keller Construction | General Contractors | 268 |
| Hood College | Four-Year College | 251 |
*Includes military personnel, contractors and offsite annex
Last updated 7/2023