BesaGov

Top federal contractors in Maryland

6,261 SAM.gov-registered federal contractors based in Maryland. Ranked by lifetime federal award amount. Updated 2026-05-07.

Firms tracked
6,261
Top-50 lifetime $
$76.07B
Top NAICS
8

Top 50 federal contractors in Maryland

# Firm City NAICS Lifetime $ Contracts
1 LOCKHEED MARTIN CORP BETHESDA 335311 $51.35B 0
2 CONSOLIDATED NUCLEAR SECURITY, LLC FREDERICK 561210 $4.04B 0
3 THE JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY LLC LAUREL 541715 $1.76B 0
4 MARYLAND STATE DEPARTMENT OF EDUCATION BALTIMORE 541720 $1.40B 0
5 BAE SYSTEMS TECHNOLOGY SOLUTIONS & SERVICES INC. ROCKVILLE 541519 $1.09B 0
6 THE JOHNS HOPKINS UNIVERSITY BALTIMORE 541715 $1.05B 0
7 LEIDOS, INC. GAITHERSBURG 541330 $962.35M 0
8 KBR WYLE SERVICES, LLC FULTON 541715 $862.11M 0
9 UNITED CLEANUP OAK RIDGE LLC GERMANTOWN 562910 $797.17M 0
10 FCN, INC. ROCKVILLE 541519 $782.72M 0
11 INTERNATIONAL BUSINESS MACHINES CORPORATION BETHESDA 811121 $749.77M 0
12 TCOM, L.P. COLUMBIA 334511 $709.76M 0
13 LEIDOS BIOMEDICAL RESEARCH INC FREDERICK 541715 $667.30M 0
14 WHITING-TURNER CONTRACTING COMPANY, THE BALTIMORE 236220 $634.89M 0
15 KBR WYLE SERVICES, LLC LEXINGTON PARK 541330 $599.17M 0
16 NORTHROP GRUMMAN SYSTEMS CORPORATION LINTHICUM HEIGHTS 334511 $574.41M 0
17 FAIRWINDS TECHNOLOGIES LLC ABERDEEN PROVING GROUND 541519 $542.68M 0
18 THE HENRY M. JACKSON FOUNDATION FOR THE ADVANCEMENT OF MILITARY MEDICINE, INC. BETHESDA 541715 $444.54M 0
19 TRIBALCO LLC BETHESDA 541519 $409.69M 0
20 UNIVERSITY OF MARYLAND, COLLEGE PARK COLLEGE PARK 541720 $397.55M 0
21 CLARK CONSTRUCTION GROUP LLC BETHESDA 236220 $396.89M 0
22 THE JOHNS HOPKINS MEDICAL SERVICES CORPORATION BALTIMORE 524114 $380.23M 0
23 LEIDOS, INC. GAITHERSBURG 561210 $360.19M 0
24 WESTAT, INC. ROCKVILLE 541611 $358.48M 0
25 ROHDE & SCHWARZ USA, INC. COLUMBIA 334210 $305.04M 0
26 ASSOCIATION OF UNIVERSITIES FOR RESEARCH IN ASTRONOMY, INC. BALTIMORE — $290.94M 0
27 NORTHROP GRUMMAN SYSTEMS CORPORATION LINTHICUM HEIGHTS 336413 $275.95M 0
28 SODEXO MANAGEMENT INC. GAITHERSBURG 722310 $267.66M 0
29 THE ENVIRONMENT MARYLAND DEPARTMENT OF BALTIMORE 541620 $252.50M 0
30 ASRC FEDERAL SYSTEM SOLUTIONS LLC BELTSVILLE 541330 $234.92M 0
31 UNIVERSITY OF MARYLAND, BALTIMORE BALTIMORE 541714 $225.75M 0
32 MARYLAND DEPARTMENT OF HEALTH BALTIMORE 923120 $216.52M 0
33 COLOSSAL CONTRACTING LLC ANNAPOLIS 541519 $207.30M 0
34 MISTRAL INC BETHESDA 336411 $202.09M 0
35 FREQUENTIS USA, INC COLUMBIA 334210 $197.33M 0
36 NIH BAYVIEW ACQUISITION LLC LUTHERVILLE TIMONIUM 531120 $177.85M 0
37 MOTOROLA SOLUTIONS, INC. LINTHICUM HEIGHTS 334220 $157.11M 0
38 ABT GLOBAL LLC ROCKVILLE 541690 $153.96M 0
39 THALES DEFENSE & SECURITY INC CLARKSBURG 444180 $152.31M 0
40 JBG/FEDERAL CENTER, L.L.C. CHEVY CHASE 236220 $143.35M 0
41 AXLE INFORMATICS, LLC NORTH BETHESDA 541690 $142.53M 0
42 TISTA SCIENCE AND TECHNOLOGY CORPORATION ROCKVILLE 541512 $140.92M 0
43 AMERICAN CENTRIFUGE OPERATING, LLC BETHESDA 325180 $134.81M 0
44 INDEX ANALYTICS LLC WINDSOR MILL 541612 $128.06M 0
45 HELICOPTER TRANSPORT SERVICES, LLC BALTIMORE 481212 $126.77M 0
46 ESIMPLICITY INC SILVER SPRING 541512 $125.21M 0
47 SMITHS DETECTION INC. EDGEWOOD 532490 $124.09M 0
48 ASRC FEDERAL FACILITIES LOGISTICS LLC BELTSVILLE 334412 $123.44M 0
49 TRANSOCEANIC CABLE SHIP COMPANY LLC BALTIMORE 483111 $120.39M 0
50 ASRC FEDERAL FIELD SERVICES, LLC BELTSVILLE 561210 $117.62M 0

Top NAICS in Maryland

Get the Maryland weekly digest

New federal registrations and award activity for Maryland, every Monday. No login required.

✓ You’re on the list. We’ll never spam you.

Helpful guides

Continue learning

See all guides →
More on BesaGov

Keep researching

FAQ

How many federal contractors are based in Maryland?

BesaGov tracks 6,261 SAM.gov-registered firms whose physical state of business is Maryland. The list updates weekly as new entities register or update their SAM profile.

Who are the largest federal contractors in Maryland?

By lifetime federal award amount, the largest Maryland-based contractors include LOCKHEED MARTIN CORP, CONSOLIDATED NUCLEAR SECURITY, LLC, THE JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY LLC. See the full top-50 list above.

Can I get notified when a new firm registers in Maryland?

Yes. Sign up for the free weekly Maryland digest above. We'll email you new SAM.gov registrations and award activity for the state — no login required.

Is this data official?

Firm registrations come from SAM.gov entity public extracts. Lifetime award totals come from USAspending.gov. Both are official U.S. government data sources, refreshed weekly.