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

ARUNDEL COOLING & HEATING CO INC HVAC/Anne Arundel County, Howard County 45 permits/to Aug 2026
BATHGATE ELECTRIC Pool & Spa/Anne Arundel County, Frederick County, Howard County 45 permits/to Jul 2026
GRAMOPHONE LTD Electrical/Anne Arundel County, Howard County 45 permits/to Aug 2026
Rick Jones Electric Electrical/Frederick County, Howard County 45 permits/to Aug 2026
CECCIO ELECTRIC LLC Electrical/Anne Arundel County, Howard County 44 permits/to Aug 2026
INTEGRATESUN LLC Solar/Frederick County, Howard County 44 permits/to Feb 2026
SMITH MECHANICAL, INC. Plumbing/Anne Arundel County, Howard County 44 permits/to Sep 2026
T&D PLUMBING & HEATING CO., INC Plumbing/Howard County 44 permits/to Aug 2026
TRI-STATE COMMUNICATIONS, INC. Pool & Spa/Frederick County, Howard County 44 permits/to Aug 2026
F&B ELECTRIC LLC Electrical/Frederick County, Howard County 43 permits/to Jan 2026
FIDELITY ENGINEERING, LLC HVAC/Frederick County, Howard County, Prince George's County 43 permits/to Sep 2026
Sight & Sound Systems, Inc. Electrical/Frederick County, Howard County 43 permits/to Jul 2026
SYSTCOM INC Electrical/Anne Arundel County, Howard County, Prince George's County 43 permits/to Aug 2026
TEVIS OIL, INC. Plumbing/Frederick County, Howard County 43 permits/to Aug 2026
THE WHITING TURNER CONTRACTING COMPANY HVAC/Howard County 43 permits/to Sep 2026
Al Gleeson Electric Electrical/Frederick County, Howard County 42 permits/to Jun 2026
ANCHOR MECHANICAL LLC HVAC/Anne Arundel County, Frederick County, Howard County 42 permits/to Sep 2026
DESHAIES ELECTRICAL SERVICES LLC Deck & Patio/Frederick County, Howard County 42 permits/to Jul 2026
GARCIA'S MECHANICAL LLC Plumbing/Anne Arundel County, Frederick County, Howard County 42 permits/to Jul 2026
GREEN BRILLIANCE LLC Solar/Howard County 42 permits/to Jul 2026
JP ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 42 permits/to Aug 2026
PUMPHREY PLUMBING LLC Plumbing/Anne Arundel County, Howard County 42 permits/to Jul 2026
VENTURE SOLAR/VENTURE HOME SOLAR LL Solar/Howard County 42 permits/to Aug 2026
BURGAN, INC Plumbing/Frederick County, Howard County 41 permits/to Jun 2026
Englar Electric LLC Electrical/Frederick County, Howard County 41 permits/to Aug 2026
OLYMPUS ELECTRIC LLC Electrical/Frederick County, Howard County 41 permits/to Jul 2026
PLUGG ELECTRIC LLC Electrical/Howard County 41 permits/to Aug 2026
PLUMB CHEAP INC Plumbing/Anne Arundel County, Howard County 41 permits/to Aug 2026
QSP Plumbing Services, Inc. Plumbing/Anne Arundel County, Frederick County, Howard County 41 permits/to Apr 2026
SCANLON ELECTRIC LLC Accessory Structure/Anne Arundel County, Howard County 41 permits/to Aug 2026
AROUND THE CLOCK PLUMBING Plumbing/Anne Arundel County, Howard County 40 permits/to Aug 2026
ARTISAN INVESTMENTS LLC Accessory Structure/Anne Arundel County, Frederick County, Howard County 40 permits/to Jul 2026
C T Smith Electrical Services LLC Electrical/Anne Arundel County, Frederick County, Howard County 40 permits/to Sep 2026
INTEGRATED TECHOLOGIES GROUP Electrical/Howard County 40 permits/to Apr 2026
JB HUNT TRANSPORT INC. Plumbing/Howard County 40 permits/to Oct 2024
OWINGS MECHANICAL Electrical/Anne Arundel County, Howard County 40 permits/to Jul 2026
R. L. THOMPSON ELECTRIC CONTRACTORS INC Electrical/Howard County 40 permits/to Jul 2026
UTILITIES UNLIMITED INC Plumbing/Anne Arundel County, Howard County 40 permits/to Jul 2026
CONNOLLY SIGN COMPANY Electrical/Anne Arundel County, Howard County 39 permits/to Sep 2026
DEL ELECTRIC Electrical/Howard County 39 permits/to Aug 2026
Fortress Foundation Solutions Structural/Frederick County, Howard County 39 permits/to Aug 2026
KH BEST CONSTRUCTION INC Plumbing/Anne Arundel County, Frederick County, Howard County 39 permits/to May 2026
MID ATLANTIC COOPERATIVE SOLUTIONS DBA AERO ENERGY Site/Howard County 39 permits/to Aug 2026
SKIRATKO ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 39 permits/to Aug 2026
WADI ELECTRIC Electrical/Anne Arundel County, Howard County 39 permits/to Sep 2026
WITKOWSKI MECHANICAL HVAC/Anne Arundel County, Howard County 39 permits/to Sep 2026
BENJAMIN FRANKLIN PLUMBING HVAC/Frederick County, Howard County 38 permits/to Jul 2026
HANSY ENGINEERING INC. Plumbing/Anne Arundel County, Howard County 38 permits/to Aug 2026
J AND J CONTRACTING, INC Plumbing/Howard County 38 permits/to Apr 2026
JDS HOME IMPROVEMENT LLC Interior/Anne Arundel County, Baltimore County, Frederick County, Howard County 38 permits/to Sep 2026

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Source: county permit records. Updated weekly.