Maryland has long been a hub for business. Its proximity to Washington DC makes it attractive for businesses that thrive on government contracts, particularly the defense sector. Maryland’s proximity to the sea—and location midway up the Atlantic shore—makes it a hub for the transporation of goods, or the seagoing vessels that move them.
Our list of companies headquartered in Maryland is drawn from the Fortune 1000, Inc. 5000, and other sources. The result? Nearly 100 Maryland companies that lead a vibrant business community.
List of Companies Headquartered in Maryland
AdvisorShares
Headquartered in Bethesda
AGV Sports Group
Headquartered in Buckeystown
Allegis Group
Headquartered in Hanover
Amelex
Headquartered in California
American Capital
Headquartered in Bethesda
Aquilent
Headquartered in Laurel
Arxan Technologies
Headquartered in Bethesda
Balducci’s
Headquartered in Bethesda
Black & Decker
Headquartered in Towson
A leading Maryland employer providing jobs to some 22,000 residents, Black & Decker manufactures and sells more than $6 billion of power tools and other hardware around the world.
Blackstreet Capital Management
Headquartered in Chevy Chase
Bozzuto Group
Headquartered in Greenbelt
CallTrackingMetrics
Headquartered in Severna Park
CareFirst
Headquartered in Owings Mills
Chesapeake Shipbuilding
Headquartered in Salisbury
Choice Hotels
Headquartered in Rockville
Choptank Electric Cooperative
Headquartered in Denton
Ciena Corporation
Headquartered in Hanover
Perhaps unknown to some, Ciena Corporation ranks 854th among the Fortune 1000. The company offers telecommunications networking equipment, software, and services.
ClearShark
Headquartered in Hanover
Colfax Corporation
Headquartered in Annapolis Junction
Colfax is another relatively unknown giant—a specialty fluids handling manufacturer that ranks among the top 600 in the Fortune 1000 (596 in 2016).
Connections Academy
Headquartered in Baltimore
Constellation Energy Group
Headquartered in Baltimore
Coventry Health Care
Headquartered in Bethesda
Cutts & Case Shipyard
Headquartered in Oxford
Development Alternatives Incorporated
Headquartered in Bethesda
Digital Management, Inc.
Headquartered in Bethesda
Discovery Communications
Headquartered in Silver Spring
Parent company of the Discovery Channel, Animal Planet, and TLC, Discovery Communications ranks 406th among the Fortune 500. In all, the company controls 50 media brands and employs 7,000.
District Photo
Headquartered in Beltsville
e4e Inc
Headquartered in Towson
GEICO
Headquartered in Chevy Chase
GenVec
Headquartered in Gaithersburg
Giant Food Inc.
Headquartered in Landover
Goodwill Industries
Headquartered in Rockville
The non-profit Goodwill Industries started in 1902 and has expanded to 17 countries with more than $5.3 billion in annual revenue. Its stores provide employment for some 318,000 people.
GP Strategies Corporation
Headquartered in Columbia
Greater Baltimore Medical Center
Headquartered in Baltimore
Greenbranch Publishing
Headquartered in Phoenix
Host Hotels & Resorts
Headquartered in Bethesda
Inifiniti HR
Headquartered in Burtonsville
ISE America
Headquartered in Galena
Jerry’s Subs & Pizza
Headquartered in Gaithersburg
Johns Hopkins Medical Institutions
Headquartered in Baltimore
One of the world’s leading health-care providers, the $8 billion Johns Hopkins Medical Institutions include six academic and community hospitals as well as dozens of surgery centers and outpatient sites. U.S. News & World Report has ranked the flagship hospital as the best in the country 22 times.
JoS. A. Bank Clothiers
Headquartered in Baltimore
Ledo Pizza
Headquartered in Adelphi
Legg Mason
Headquartered in Baltimore
LibLime
Headquartered in North Bethesda
LifeBridge Health
Headquartered in Baltimore
Lockheed Martin Corporation
Headquartered in Bethesda
Lockheed Martin is the largest Maryland-based company, ranking 60th on the Fortune 500 list. Annual revenue for the defense and aerospace contractor tops $46 billion.
London Fog
Headquartered in Baltimore
LWRC International
Headquartered in Cambridge
M3D
Headquartered in Fulton
Magellan Health Services
Headquartered in Columbia
MailerMailer
Headquartered in Rockville
Marquee Broadcasting
Headquartered in Salisbury
Marriott International
Headquartered in Bethesda
Among the Fortune 200, Marriott International operates more than 5,700 properities in 110 countries—a majority of the world’s nations. In all, the hotel chain offers 1.2 million rooms to guests each night.
McCormick & Company, Incorporated
Headquartered in Sparks
McShane Bell Foundry
Headquartered in Glen Burnie
MedImmune
Headquartered in Gaithersburg
MedStar Health
Headquartered in Columbia
Like other populous states, Maryland has its fair share of large-scale health-care providers. MedStar Health is no exception, employing some 22,000 people at dozens of facilities throughout Maryland.
Mercantile Bankshares Corp.
Headquartered in Baltimore
Micros Systems Inc.
Headquartered in Columbia
Millennial Media
Headquartered in Baltimore
Monumental Vending
Headquartered in Beltsville
Netcordia
Headquartered in Annapolis
Novavax
Headquartered in Gaithersburg
Omni International Jet Trading
Headquartered in Easton
Paice
Headquartered in Balitmore
Perdue Farms
Headquartered in Salisbury
Piedmont Airlines
Headquartered in Salisbury
While major air carriers operate long-haul and internatinal flights, many of the connecting flights are operated by smaller carriers—like Piedmont Airlines. Piedmont Airlines operates American Eagle flights to 47 destinations and is a wholly owned subsidiary of American Airlines.
PRS Guitars
Headquartered in Stevensville
Radio One
Headquartered in Silver Spring
Raxco Software
Headquartered in Gaithersburg
Recorded Books
Headquartered in Prince Frederick
RLJ Companies
Headquartered in Bethesda
Roy Rogers Restaurants
Headquartered in Frederick
Salsa Labs
Headquartered in Bethesda
Sapio Sciences
Headquartered in Baltimore
Sharp Water
Headquartered in Salisbury
Shoppers Food & Pharmacy
Headquartered in Lanham
Sinclair Broadcast Group
Headquartered in Hunt Valley
Sylvan Learning
Headquartered in Baltimore
Solar Energy World
Headquartered in Elkridge
Southern Maryland Electric Cooperative
Headquartered in Hughesville
STX
Headquartered in Balitmore
T. Rowe Price Group
Headquartered in Baltimore
Falling just outside the Fortune 500, T. Rowe Price manages nearly $800 billion in assets and employees some 4,200 to manage the funds entrusted to the investment firm, which was founded in 1937.
Tapout
Headquartered in Baltimore
Temple Allen Industries
Headquartered in Rockville
The Ritz-Carlton Hotel Company
Headquartered in Chevy Chase
The Rouse Co.
Headquartered in Columbia
Total Wine & More
Headquartered in Bethesda
Transamerica Corporation
Headquartered in Baltimore
Under Armour
Headquartered in Baltimore
Challenging athletic apparel giants such as Nike and Adidas isn’t easy, but Under Armour has done it. In just 20 years, Under Armour has grown to generate nearly $4 billion in annual revenue and employees 11,000.
United States Enrichment Corporation
Headquartered in Bethesda
University of Maryland Medical System
Headquartered in Baltimore
W.R. Grace & Co.
Headquartered in Columbia
Webs
Headquartered in Silver Spring
Westat
Headquartered in Rockville
ZeniMax Media
Headquartered in Rockville