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Site Selection - Loudoun features a variety of buildings and land to meet your business needs.

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Major Employers - 100-499 Employees
Loudoun County is home to businesses of all sizes. The Howard Huges Janelia Farms research campus, United Airllines and Rockwell Collins are just some of the companies that employ between 100 and 499 people.


Employer Industry Range
Air Force Retired Officer Health Care and Social Assistance 250 - 499
Airline Tariff Publishing Co Information 250 - 499
Alliedbarton Security Ser Administrative and Support and Waste Management and Remediation Services 250 - 499
Avenge Inc Transportation and Warehousing 250 - 499
Baker Dc Llc Construction 250 - 499
Carmax Auto Superstores Inc Retail 250 - 499
Christos Building Services, In Administrative and Support and Waste Management and Remediation Services 250 - 499
Continental Airlines Inc New Transportation and Warehousing 250 - 499
Destination Leesburg Mana Inc Accommodation and Food Services 250 - 499
Dynalectric Company Construction 250 - 499
Dynamic Details Inc Of Va Manufacturing 250 - 499
Federal Express Corp Transportation and Warehousing 250 - 499
Forfeiture Support Associ Administrative and Support and Waste Management and Remediation Services 250 - 499
George Washington University Educational Services 250 - 499
Home Depot Usa Inc Retail 250 - 499
Howard Hughes Medical Ins Professional, Scientific, and Technical Services 250 - 499
Hunt Leigh Usa Corp Transportation and Warehousing 250 - 499
Intelligent Decisions Inc Wholesale 250 - 499
Ltf Club Management Co Arts, Entertainment, and Recreation 250 - 499
Mastec Services Company Inc Construction 250 - 499
Nalc Hbp Finance and Insurance 250 - 499
Niitek Inc Professional, Scientific, and Technical Services 250 - 499
Prospect Waterproofing Co Construction 250 - 499
Rockwell Collins
Professional, Scientific, and Technical Services 250 - 499
Six3 Advanced Systems Inc Professional, Scientific, and Technical Services 250 - 499
Sky Chefs Inc Accommodation and Food Services 250 - 499
Southland Industries Construction 250 - 499
Swissport Usa Inc Transportation and Warehousing 250 - 499
Telos Corp Professional, Scientific, and Technical Services 250 - 499
Valleycrest Landscape Mai Administrative and Support and Waste Management and Remediation Services 250 - 499
Wegmans Food Markets Inc Retail 250 - 499
Adesa Virginia Llc Wholesale 100 - 249
Aircraft Service Internat Inc Transportation and Warehousing 100 - 249
Alpha Construction & Engi Corp Professional, Scientific, and Technical Services 100 - 249
American Red Cross Health Care and Social Assistance 100 - 249
American Security Program Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Andrew Corporation Professional, Scientific, and Technical Services 100 - 249
Arthur Construction Co, Inc Construction 100 - 249
Ashby Ponds Inc Real Estate and Rental and Leasing 100 - 249
Atlantic Southeast Airline Inc Transportation and Warehousing 100 - 249
B F Saul Property Company Accommodation and Food Services 100 - 249
Beckstrom Electric Co Inc Construction 100 - 249
Belfort Furniture Retail 100 - 249
Bergmanns Cleaning Inc Other Services (except Public Administration) 100 - 249
Blazin Wings Inc Accommodation and Food Services 100 - 249
Blue Ridge Veterinary Asc Inc Professional, Scientific, and Technical Services 100 - 249
Boeing Company Professional, Scientific, and Technical Services 100 - 249
Caci Inc Federal Professional, Scientific, and Technical Services 100 - 249
Cargo Airport Services Us Transportation and Warehousing 100 - 249
Chapel Valley Landscape Co Administrative and Support and Waste Management and Remediation Services 100 - 249
Cheesecake Factory Restaurants Accommodation and Food Services 100 - 249
Chenega Corporation Administrative and Support and Waste Management and Remediation Services 100 - 249
Cis Secure Computing Inc Professional, Scientific, and Technical Services 100 - 249
Clippers Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Clyde Broadland Inc Accommodation and Food Services 100 - 249
Compusearch Software Sys Professional, Scientific, and Technical Services 100 - 249
Computer Sciences Corp Professional, Scientific, and Technical Services 100 - 249
Con Serv Industries Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Convention Store Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
D A Foster Company Construction 100 - 249
Declercq Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Discovery Productions Gro Inc Information 100 - 249
Dons Johns Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Dulles Motor Cars Inc Retail 100 - 249
Duty Free Americas Inc Retail 100 - 249
Electronic Instrument & T Inc Manufacturing 100 - 249
Ex Zel Janitorial Service Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Federal Bakers Inc Manufacturing 100 - 249
Five Star Home Health Car Health Care and Social Assistance 100 - 249
G & D America Inc Management of Companies and Enterprises 100 - 249
Gettier Commercial Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Gg Ashburn Llc Arts, Entertainment, and Recreation 100 - 249
Gg Cascades Llc Arts, Entertainment, and Recreation 100 - 249
Giant Retail 100 - 249
Global Wireless Solutions Inc Professional, Scientific, and Technical Services 100 - 249
Gmri Inc Accommodation and Food Services 100 - 249
Guernsey Office Products Inc Wholesale 100 - 249
H C M F Corp Health Care and Social Assistance 100 - 249
Harris Teeter Inc Retail 100 - 249
Healthsouth Rehabilitatio Health Care and Social Assistance 100 - 249
Heritage Landscape Servic Administrative and Support and Waste Management and Remediation Services 100 - 249
Hogan & Sons, Inc. Other Services (except Public Administration) 100 - 249
Home School Legal Defense Other Services (except Public Administration) 100 - 249
Host International Inc Accommodation and Food Services 100 - 249
Iconma Llc Administrative and Support and Waste Management and Remediation Services 100 - 249
Independent Project Analy Inc Professional, Scientific, and Technical Services 100 - 249
Inovant Llc Finance and Insurance 100 - 249
JCPenney Co Inc Retail 100 - 249
Jetblue Airways Transportation and Warehousing 100 - 249
K T Enterprise Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
K2M Inc Manufacturing 100 - 249
Leesburg Imports Llc Retail 100 - 249
LM Operations Support Professional, Scientific, and Technical Services 100 - 249
Loudoun County Sanitation Authority Utilities 100 - 249
Loudoun Long Term Care Health Care and Social Assistance 100 - 249
Lowes Home Centers Inc Retail 100 - 249
M C Enterprise Transportation and Warehousing 100 - 249
Marriott Hotel Services Inc Accommodation and Food Services 100 - 249
May Department Stores Co Retail 100 - 249
MCI Communications Inc Information 100 - 249
Meadows Farms Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Mesa Airlines Inc Transportation and Warehousing 100 - 249
Metron Aviation Inc Professional, Scientific, and Technical Services 100 - 249
Mindshift Technologies Inc Professional, Scientific, and Technical Services 100 - 249
Moore Cadillac Hummer Dul Retail 100 - 249
Mvm International Sec Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
National Rural Utilities Finance and Insurance 100 - 249
Nordstrom Inc Retail 100 - 249
Nova Medical & Urgent Car Inc Health Care and Social Assistance 100 - 249
Patrick Henry College Educational Services 100 - 249
Patriot Development Corp Construction 100 - 249
Prison Fellowship Ministries Other Services (except Public Administration) 100 - 249
Pro Football Inc Arts, Entertainment, and Recreation 100 - 249
Professional Maintenance Inc Administrative and Support and Waste Management and Remediation Services 100 - 249
Psychiatric Solutions Of Inc Health Care and Social Assistance 100 - 249
R B Hinkle Construction Inc Construction 100 - 249
R C D Inc Construction 100 - 249
Reston Limousine & Travel Inc Transportation and Warehousing 100 - 249
River Creek Country Club Arts, Entertainment, and Recreation 100 - 249
Rosendin Electric Inc Construction 100 - 249
S A Halac Iron Works Inc Construction 100 - 249
Sears Roebuck & Co Inc Retail 100 - 249
Simplexgrinnell Lp Wholesale 100 - 249
Sky Courier Inc Transportation and Warehousing 100 - 249
Smx Llc Administrative and Support and Waste Management and Remediation Services 100 - 249
Sport And Health Inc Arts, Entertainment, and Recreation 100 - 249
Sweetwater Ltc Llc Accommodation and Food Services 100 - 249
Swissport Cargo Services Transportation and Warehousing 100 - 249
Tamsco Information 100 - 249
Technica Corporation Professional, Scientific, and Technical Services 100 - 249
Thomas A Moorehead Inc Retail 100 - 249
Troon Golf Llc Arts, Entertainment, and Recreation 100 - 249
Trugreen Company Lp Administrative and Support and Waste Management and Remediation Services 100 - 249
Trump Natl Golf Club Wash Arts, Entertainment, and Recreation 100 - 249
Virginia Regional Transportation Transportation and Warehousing 100 - 249
W.E. Bowers & Associates Inc Construction 100 - 249
Wal Mart Retail 100 - 249
Webco General Partnership Wholesale 100 - 249