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 5,863
Frederick Health Comprehensive Health Care 3,300
Leidos Biomed / Frederick National Lab Medical Research 2,277
Frederick County Government County Government 2,175
Wells Fargo Home Mortgage Mortgage Loans and Service Center 1,175
Frederick Community College  Two-Year College 1,115
City of Frederick Government Muncipal Government 931
AstraZeneca BioTech Manufacturing 700
NVR, Inc. Home Building and Mortgage Banking 683
Mount Saint Mary’s University Four-Year University 666
Hood College Four-Year College 643
Costco Wholesale Wholesale Distribution Center, E-commerce Center, and Retail 639
UnitedHealthcare Insurance 613
Way Station Healthcare Services 592
Legal & General America Life Insurance Headquarters 586
STULZ Air Technology Systems, Inc. Manufacturer, Commercial Air Conditioners and Dehumidifiers 520
Lonza Biological Products 464
Plamondon Hospitality Companies Hospitality (Hotels, Restaurants, and Restaurant Management) 445
Thermo Fisher Scientific Life Sciences Research 430
Goodwill Industries of Monocacy Valley, Inc. eCommerce, Retail, and Workforce Development 401
National Emergency Training Center  US Fire Academy, FEMA, and other tenants 400
Music & Arts Music Retailer and Headquarters 396
Pleasants Construction, Inc. Construction and Paving 385
RR Donnelley Business Documents 350
Homewood Retirement Centers Retirement Community 334
Maryland School for the Deaf Educational Institution 320
Fountain Rock Management Corp Restaurant Management Services 315
Aldi Distribution Center Distribution Center and Retail  300
YMCA of Frederick County Recreation and Sports Center 285
Morgan-Keller Construction General Contractors 276
Builders FirstSource Lumber Supply 271