These Are The 100 Largest Companies In Maryland

We looked at over 7 million resumes to find the companies in Maryland that have the most employees.

Chris Kolmarby Chris KolmarBiggest Companies, Rankings - 3 months ago

If you live in Maryland and you’re looking for a job, you have come to the right place.

Because, sure, you can google things like ‘biggest companies in Maryland’ and get a fairly long list of companies with a lot of employees, or perhaps that have the biggest names — but here, we bring you the companies with the most current employees that are actually headquarted in Maryland.

Below, we’ll give you a complete list of Maryland’s 100 largest companies, but first, here’s a look at the top 10:

  1. Marriott International
  2. Lockheed Martin
  3. Social Security Administration
  4. The Ritz-Carlton
  5. Johns Hopkins Medicine
  6. Giant Food Of Maryland, LLC
  7. TEKsystems
  8. Perdue Farms
  9. Colfax
  10. Aerotek

Marriott International comes in at the top, with more current employees than any other company in the . We’ll get to specifics in a moment; first, here’s a look at our methodology.

If you’re interested, you can read more about the Maryland job scene here:

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How we identified the biggest companies in Maryland

Here at Zippia we have developed a database of over 250,000 companies that spans the entire country.

For this report, we looked at the companies headquartered in Maryland with at least 100 employees. That left us with 270 companies.

We then ranked each company from most to least current employees to determine the biggest companies in Maryland.

As it turns out, Marriott International looks to the be the biggest company in Maryland clocking in with 199,929 employees.

Now, check out how the 100 biggest companies in Maryland ranked.

For more reading, check out:

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Detailed List Of The 100 Biggest Companies In Maryland

Rank Company City Employees
1 Marriott International Bethesda 199,929
2 Lockheed Martin Bethesda 97,000
3 Social Security Administration Woodlawn 65,000
4 The Ritz-Carlton Chevy Chase 40,000
5 Johns Hopkins Medicine Baltimore 24,580
6 Giant Food Of Maryland, LLC Greater Landover 22,000
7 TEKsystems Hanover 21,190
8 Perdue Farms Salisbury 19,000
9 Colfax Annapolis Junction 18,351
10 Aerotek Hanover 18,040
11 U.S. Food and Drug Administration Silver Spring 14,824
12 Caleres Clayton 12,000
13 DEWALT Towson 10,001
14 Allegis Group Hanover 10,000
15 OneMain Baltimore 10,000
16 Sinclair Broadcast Group Cockeysville 8,400
17 Apex Tool Group Sparks 8,000
18 McCormick & Sparks 8,000
19 Kirkland’s Brentwood 7,900
20 SunEdison Maryland Heights 7,300
21 Piedmont Airlines Salisbury 7,000
22 Discovery Silver Spring 7,000
23 Jos. A. Bank Clothiers Hampstead 6,340
24 T. Rowe Price Baltimore 6,300
25 Adventist HealthCare Gaithersburg 6,200
26 Ciena Hanover 5,600
27 Goodwill Industries International Derwood 5,360
28 MedStar Health Columbia 5,130
29 Marriott Vacation Club Bethesda 5,038
30 MICROS Systems Inc Columbia 4,953
31 Wr Grace & Co Columbia 4,596
32 U.S Department of Education Washington 4,400
33 Clark Construction Bethesda 4,200
34 MedImmune Gaithersburg 4,071
35 Laureate International Universities Baltimore 4,007
36 Deutsch Rockville 3,500
37 MedStar Southern Maryland Hospital Center Clinton 3,500
38 HMSHost Bethesda 3,460
39 Merkle Columbia 3,400
40 GP Strategies Columbia 3,300
41 Foundation Coal Holdings Linthicum Heights 3,300
42 Maxim Healthcare Services Columbia 3,300
43 Perdue Chicken Salisbury 3,250
44 Loral Space & Communications Bethesda 3,100
45 Legg Mason Baltimore 3,066
46 Balducci’s Bethesda 3,000
47 Mars Supermarkets Rosedale 3,000
48 John J. Kirlin, LLC Rockville 3,000
49 Usec Inc Bethesda 2,949
50 Centrus Energy Bethesda 2,949
51 Westat Rockville 2,903
52 DAI Bethesda 2,888
53 Erickson Living Catonsville 2,876
54 LifeBridge Health Baltimore 2,779
55 MedStar Washington Hospital Center Columbia 2,750
56 Dunbar Armored Cockeysville 2,750
57 Towne Park Annapolis 2,605
58 The Whiting-Turner Contracting Towson 2,513
59 Inovalon Bowie 2,500
60 Senior Helpers Lutherville-Timonium 2,483
61 Hughes Germantown 2,254
62 Aggregate Industries US Rockville 2,250
63 Holy Cross Health Silver Spring 2,200
64 Total Wine & More Bethesda 2,070
65 Kennedy Krieger Institute Baltimore 2,000
66 BioReliance Rockville 2,000
67 Allegis Global Hanover 1,842
68 Anne Arundel Medical Center Annapolis 1,827
69 Choice Hotels International Rockville 1,789
70 Algeco Scotsman Baltimore 1,750
71 Vietnam Veterans of America Silver Spring 1,750
72 Prometric Baltimore 1,680
73 GXS Gaithersburg 1,650
74 Safe Net Inc Tokyo 1,600
75 BroadSoft Gaithersburg 1,597
76 Bozzuto Greenbelt 1,570
77 Red Coats Bethesda 1,500
78 Sheppard Pratt Health System Towson 1,500
79 ZeniMax Media Rockville 1,500
80 ASRC Federal Beltsville 1,425
81 ARINC Services Annapolis 1,412
82 Howard Hughes Medical Institute Chevy Chase 1,372
83 DMI Bethesda 1,267
84 Comdata Brentwood 1,253
85 RK&K Baltimore 1,250
86 e4e Healthcare Business Services Towson 1,250
87 Peninsula Regional Medical Center Salisbury 1,250
88 Mercy Medical Center (baltimore) Inc Baltimore 1,151
89 Silver Diner Rockville 1,134
90 Connections Academy Baltimore 1,047
91 Cystic Fibrosis Foundation Bethesda 1,034
92 Emergent BioSolutions Gaithersburg 1,011
93 Urban One Silver Spring 1,011
94 Mariner Finance Baltimore 1,000
95 Baltimore Aircoil Jessup 1,000
96 SAGE Dining Services Lutherville-Timonium 1,000
97 Cowan Systems Lansdowne 1,000
98 MedStar Franklin Square Medical Center Rosedale 1,000
99 University of Baltimore Baltimore 1,000
100 Meritus Health Hagerstown 1,000

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