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

RUTHERFORD PLUMBING AND HEATING Plumbing/Anne Arundel County, Howard County 23 permits/to Aug 2026
RYAN ELECTRIC Electrical/Anne Arundel County, Frederick County, Howard County 23 permits/to Sep 2026
STARCOM DESIGN BUILD INC Deck & Patio/Anne Arundel County, Howard County 23 permits/to Sep 2026
A-C AIR CARE LLC HVAC/Anne Arundel County, Howard County 22 permits/to Aug 2026
AKMATTERO INC Plumbing/Anne Arundel County, Howard County 22 permits/to Aug 2026
ALBERT J JACKSON INC Deck & Patio/Howard County 22 permits/to Aug 2026
BLUESTONE COMMUNICATIONS INC Electrical/Frederick County, Howard County 22 permits/to Aug 2026
BMA Landscaping LLC Pool & Spa/Anne Arundel County, Frederick County, Howard County 22 permits/to Jul 2026
COLUMBIA FINISHERS INC Deck & Patio/Howard County 22 permits/to Aug 2026
Delta Electric LLC Electrical/Frederick County, Howard County 22 permits/to Aug 2026
DRAIN RELIEF PLUMBING LLC Plumbing/Frederick County, Howard County 22 permits/to Dec 2025
GREAT VALLEY PROPANE INC. Site/Howard County 22 permits/to Jul 2026
JAD ELECTRIC LLC Electrical/Frederick County, Howard County 22 permits/to Jun 2026
J J ELECTRICAL SERVICES LLC Electrical/Howard County 22 permits/to Jul 2026
Key Solar Solutions Solar/Baltimore County, Frederick County, Howard County 22 permits/to Aug 2026
LEO ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 22 permits/to Sep 2026
NAUMANN PLUMBING Plumbing/Anne Arundel County, Frederick County, Howard County 22 permits/to Aug 2026
NB PEAK ELECTRIC Electrical/Frederick County, Howard County 22 permits/to Jun 2026
S & A PLUMBING SERVICE INC Plumbing/Frederick County, Howard County 22 permits/to Jan 2026
SHANNON-BAUM SIGNS INC Sign/Howard County 22 permits/to Jun 2026
THE JOHN E RUTH COMPANY Plumbing/Howard County 22 permits/to Apr 2026
VIBRANIUM ELECTRICAL SERVICES LLC Electrical/Howard County 22 permits/to Aug 2026
ACH GROUP LLC DBA BASEMENT MASTERS Plumbing/Howard County 21 permits/to Sep 2026
CRITICAL PEAKE SERVICES Electrical/Anne Arundel County, Frederick County, Howard County 21 permits/to Aug 2026
Electrical Creations Electrical/Frederick County, Howard County 21 permits/to Aug 2026
GARRETY GLASS INC Deck & Patio/Anne Arundel County, Frederick County, Howard County 21 permits/to Aug 2026
GLOBAL HVAC LLC HVAC/Anne Arundel County, Howard County 21 permits/to Jul 2026
HUNTS END REMODELING LLC Deck & Patio/Howard County 21 permits/to Aug 2026
J.B. HUNT TRANSPORT, INC Plumbing/Howard County 21 permits/to Aug 2026
J&J MECHANICAL LLC HVAC/Anne Arundel County, Howard County 21 permits/to Jul 2026
JPS ELECTRICAL SERVICES LLC Electrical/Anne Arundel County, Frederick County, Howard County 21 permits/to Aug 2026
KELLY PLUMBING SERVICES, INC. Plumbing/Anne Arundel County, Howard County 21 permits/to Aug 2026
LEROY DAVIS ELECTRIC CO Deck & Patio/Howard County 21 permits/to Jun 2026
LONG FENCE AND HOME LLP Interior/Howard County 21 permits/to Aug 2026
NORTH POINT BUILDERS OF MARYLAND LLC Structural/Howard County 21 permits/to Feb 2026
Plumb/Gas 20020019631 Plumbing/Howard County 21 permits/to Oct 2024
REDLINE MECHANICAL SERVICES LLC Plumbing/Howard County 21 permits/to Aug 2026
ROOFSIMPLE INC Solar/Frederick County, Howard County 21 permits/to Jul 2026
SCRIBA ELECTRIC LLC Electrical/Anne Arundel County, Howard County 21 permits/to Aug 2026
SuperTech HVAC Services, Inc. HVAC/Anne Arundel County, Howard County 21 permits/to Aug 2026
THE BBC GROUP LLC Electrical/Anne Arundel County, Howard County 21 permits/to Aug 2026
TIMELESS CONSTRUCTION Deck & Patio/Howard County 21 permits/to Apr 2026
VALDOVINOS CONSTRUCTION, LLC Deck & Patio/Anne Arundel County, Frederick County, Howard County 21 permits/to Aug 2026
WISNER MECHANICAL LLC HVAC/Howard County 21 permits/to Jul 2025
AQUEDUCT PLUMBING SERVICES LLC Plumbing/Howard County 20 permits/to Jul 2026
A R CROWELL PLUMBING Plumbing/Anne Arundel County, Frederick County, Howard County 20 permits/to May 2026
ARK SIGNS SERVICES INC Electrical/Howard County 20 permits/to Jul 2026
ASC HEATING & AIR CONDITIONING, INC. HVAC/Howard County 20 permits/to Sep 2024
BARNARD BROTHERS ELECTRIC CO Electrical/Howard County 20 permits/to Jul 2026
BCT Design Group Structural/Howard County 20 permits/to Dec 2025

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Source: county permit records. Updated weekly.