Major Employers

To join the list of major employers with 250 employees or more, please contact us.

CompanyIndustryEmployees
Fort Detrick CampusArmy, NCI, and other tenants10,827
Frederick County Public SchoolsPublic Education7,433
Frederick HealthComprehensive Health Care3,360
Frederick County GovernmentCounty Government2,810
Leidos Biomed / Frederick National LabMedical Research2,440
Frederick Community CollegePublic Two-Year College1,369
City of Frederick GovernmentMunicipal Government977
ThermoFisher ScientificLife Sciences Research815
AstraZenecaBiotech Manufacturing799
Costco WholesaleWholesale Distribution Center and E-commerce Center
725
Mount Saint Mary’s UniversityPrivate Four-Year University682
Legal & General AmericaLife Insurance Headquarters638
NVR, Inc.
Home Building and Mortgage Banking
630
ALDI Distribution Center and Retail
Retail Supermarket and Distribution
552
STULZ Air Technology Systems, Inc.
Manufacturer, Commercial Air Conditioners and Dehumidifiers
536
LonzaBiological Products517
Kite, a Gilead CompanyCell Therapy Products510
YMCA of Frederick CountyRecreation and Sports Center509
National Emergency Training Center
US Fire Academy, FEMA, and other tenants
400
Music & ArtsMusic Retailer and Headquarters (a Subsidiary of Guitar Center)396
Plamondon Hospitality Companies
Hospitality (Hotels, Restaurants, and Restaurant Management)
390
Sheppard PrattOutpatient Mental Health376
Pleasants Construction, Inc.
Construction and Paving
360
RR Donnelley
Business Documents
350
Fitzgerald Auto Mall Frederick
Auto Dealership
347
Maryland School for the DeafEducational Institution320
Cian DiagnosticsDiagnostic Testing307
R.W. WarnerConstruction/Trade Contractor302
Homewood Living MinistriesRetirement Community300
Wright Manufacturing
Lawn Maintenance Technology
280
Morgan-Keller ConstructionGeneral Contractors253
Hood CollegePrivate Four-Year College251

Fort Detrick Campus includes military personnel, contractors, and an offsite annex.