Top NAICS Trades — DBE Contractors in Maryland
11,477 DBE, WBE, MBE, and SBA companies in Maryland with certifications recognized by Maryland Department of Transportation (MDOT) and partner agencies. Browse by trade below to drill into contractors specializing in each NAICS code.
Browse by Trade (NAICS Code)
Top trades represented by certified companies in Maryland. Sign up to see full contact details and export GFE forms.
541611
Strategic planning consulting services
4,605 companies
541512
Systems integration design services, computer
3,102 companies
541519
Software installation services, computer
2,748 companies
541511
WEB (i.e., internet) page design services, custom
2,697 companies
541618
Utilities management consulting services
2,001 companies
541690
Security consulting services
1,818 companies
611430
Professional development training
1,818 companies
541330
Mechanical engineering services
1,809 companies
541513
Data processing facilities (i.e., clients' facilities) management and operation services
1,670 companies
541990
Pipeline inspection (i.e., visual) services
1,460 companies
236220
Project management (deactivated in 2007 codeset)
1,336 companies
561110
Office Administrative Services.
1,236 companies
561320
Temporary staffing services
1,189 companies
238210
Railroad signaling equipment installation
1,156 companies
541613
Marketing management consulting services
1,152 companies
561720
Janitorial Services.
1,147 companies
541612
Organization development consulting services
1,111 companies
518210
Data Processing, Hosting, and Related Services.
1,062 companies
611420
Computer Training.
980 companies
541614
Transportation management consulting services
942 companies
238990
Scaffold erecting and dismantling
927 companies
561210
Facilities Support Services.
819 companies
238320
Painting and Wall Covering Contractors.
803 companies
425120
Wholesale Trade Agents and Brokers.
790 companies
238910
Site Preparation Contractors.
735 companies
238310
Drywall and Insulation Contractors.
715 companies
611710
Test development and evaluation services, educational
702 companies
484220
Specialized Freight (except Used Goods) Trucking, Local.
669 companies
541430
Graphic Design Services.
667 companies
236118
Residential Remodelers.
661 companies
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