Contractor permit directory

Contractors observed in Maryland county permit records, grouped from public filings. Our observation is not complete: not every filing names a contractor, so a firm's real activity is almost always greater than what appears here.

All counties Anne Arundel County Baltimore County Frederick County Howard County Prince George's County

All trades Accessory Structure Deck & Patio Electrical Exterior Fire Protection Gas Interior HVAC Plumbing Pool & Spa Sign Site Solar Structural

CECO, INC Electrical/Anne Arundel County, Frederick County, Howard County 865 permits/to Sep 2026
TRINITY WIRING SOLUTIONS Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 605 permits/to Sep 2026
BENFIELD ELECTRIC CO INC Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 506 permits/to Sep 2026
HILLTOP ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 505 permits/to Aug 2026
KENNETH J LEMERE/SPARTAN ELEC Electrical/Frederick County 477 permits/to Aug 2026
PROVIDENT ELECTRIC Electrical/Frederick County, Howard County 328 permits/to Sep 2026
ADT Security LLC Electrical/Frederick County 312 permits/to Sep 2026
SILVER DOLLAR ELECTRIC INC. Electrical/Frederick County, Howard County 287 permits/to Sep 2026
ERCOLE ELECTRIC INC Electrical/Frederick County, Howard County 271 permits/to Sep 2026
SPARTAN ELECTRIC Electrical/Anne Arundel County, Frederick County, Howard County 265 permits/to Sep 2026
Ramiro A Fernandez Electrical/Frederick County 232 permits/to Aug 2026
ROYAL ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 216 permits/to Sep 2026
MILES ELECTRIC CO INC Electrical/Anne Arundel County, Frederick County, Howard County 202 permits/to Sep 2026
NORTHERN CROSS ELECTRIC INC Electrical/Frederick County, Howard County 184 permits/to Aug 2026
Wenbrooke Services Electrical/Frederick County, Howard County 169 permits/to Aug 2026
ELECTRICAL CONNECTIONS LLC Electrical/Frederick County, Howard County 157 permits/to Sep 2026
LONG ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 146 permits/to Sep 2026
ADVANCED WIRING SOLUTIONS LLC Electrical/Anne Arundel County, Frederick County, Prince George's County 133 permits/to Sep 2026
KIM SIMPSON Electrical/Frederick County 128 permits/to Sep 2026
GOT ELECTRIC LLC Electrical/Frederick County, Howard County 127 permits/to Aug 2026
GUS D BISER Electrical/Frederick County 127 permits/to Aug 2026
GUARDIAN PROTECTION SERVICES Electrical/Anne Arundel County, Frederick County, Howard County 126 permits/to Aug 2026
PREMIERE ELECTRICAL SERVICES LLC Electrical/Howard County 126 permits/to Aug 2026
ALLEN B COBLENTZ Electrical/Frederick County 123 permits/to Aug 2026
SUMMIT ELECTRIC COMPANY Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 123 permits/to Sep 2026
KCL ELECTRIC Electrical/Frederick County, Howard County 121 permits/to Aug 2026
BOPAT ELECTRIC CO INC Electrical/Anne Arundel County, Frederick County, Howard County 117 permits/to Aug 2026
EVERON LLC Electrical/Frederick County, Howard County, Prince George's County 111 permits/to Sep 2026
THOMAS M GRUENTZEL Electrical/Frederick County 110 permits/to May 2024
CHESAPEAKE ENERGY SOLUTIONS LLC Electrical/Anne Arundel County, Howard County 109 permits/to Aug 2026
WHITE SPARK ELECTRIC Electrical/Anne Arundel County, Frederick County, Howard County 109 permits/to Aug 2026
THREE BROTHERS SERVICES LLC Electrical/Anne Arundel County, Howard County, Prince George's County 102 permits/to Sep 2026
Donald W Guyton Inc Electrical/Frederick County 100 permits/to Sep 2026
ARK SYSTEMS INC Electrical/Anne Arundel County, Frederick County, Howard County 99 permits/to Jul 2026
HAAS & SONS ELECTRIC INC Electrical/Anne Arundel County, Howard County, Prince George's County 99 permits/to Aug 2026
BOYLAND ELECTRIC INC Electrical/Frederick County, Howard County 97 permits/to Aug 2026
Robbie Norwood Electrical/Frederick County 97 permits/to Aug 2026
C & R ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 94 permits/to Sep 2026
RISK MANAGEMENT CONSULTANTS LLC Electrical/Howard County 92 permits/to Apr 2026
Michael P O'Connor Electrical/Frederick County 87 permits/to Apr 2026
CLARKSVILLE ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 84 permits/to Sep 2026
Redstone Electric, Inc. Electrical/Frederick County, Howard County 84 permits/to Jun 2026
Weisman Electric Company Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 84 permits/to Sep 2026
D M V ELECTRICAL PROFESSIONALS Electrical/Howard County 80 permits/to May 2026
MAGOTHY ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 79 permits/to Sep 2026
JEM ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 78 permits/to Sep 2026
KOLB ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 78 permits/to Sep 2026
REEDY ELECTRICAL SERVICES INC Electrical/Howard County 77 permits/to Aug 2026
TIM KYLE CO ELECTRICAL SERVICE INC Electrical/Howard County 76 permits/to Aug 2026
GSB SERVICES LLC Electrical/Howard County 74 permits/to Jan 2026

Source: county permit records. Updated weekly.