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

HOFMANN ASSOCIATES INC Fire Protection/Frederick County, Howard County 15 permits/to Aug 2026
Connie Bertram Fire Protection/Baltimore County 14 permits/to Jan 2023
JAMES G DAVIS CONSTRUCTION CORP Fire Protection/Howard County 14 permits/to Sep 2026
EVRON LLC- Fire Protection/Anne Arundel County 13 permits/to Jul 2026
Gregg Reinsmith Fire Protection/Baltimore County 13 permits/to Jun 2023
LIVINGSTON FIRE PROTECTION Fire Protection/Anne Arundel County, Howard County 13 permits/to Sep 2026
Services LLC Guardian fire protection Fire Protection/Frederick County 13 permits/to Jun 2026
ADVANCED FIRE PROTECTION Fire Protection/Anne Arundel County 12 permits/to Sep 2026
COLUMBIA CHIMNEY SWEEPS INC Fire Protection/Howard County 12 permits/to Jul 2026
PARTNER CONTRACTING LLC Fire Protection/Howard County 12 permits/to Feb 2026
PRIME FIRE PROTECTION LLC Fire Protection/Anne Arundel County, Frederick County, Howard County 12 permits/to Aug 2026
Summit Fire & Security Fire Protection/Anne Arundel County, Frederick County, Howard County 12 permits/to Aug 2026
ADCOCK SYSTEMS LLC Fire Protection/Anne Arundel County 11 permits/to Jun 2026
Chesapeake Sprinkler Company Fire Protection/Anne Arundel County, Frederick County 11 permits/to Jun 2026
CHRIS WINE Fire Protection/Baltimore County 11 permits/to Aug 2023
Jennifer Ray Fire Protection/Baltimore County 11 permits/to Jun 2023
POTOMAC FIRE SPRINKLER SERV Fire Protection/Frederick County 11 permits/to Jul 2026
WOLF FIRE PROTECTION Fire Protection/Anne Arundel County, Baltimore County 11 permits/to Aug 2026
BERNARD R GIBSON Fire Protection/Frederick County 10 permits/to Jun 2026
DAY OR NIGHT HOME & HEARTH SERVICES LLC Fire Protection/Howard County 10 permits/to Jan 2026
Fire Sprinklers, LLC Safeguard Residential Fire Protection/Frederick County 10 permits/to Jul 2026
JOHNSON CONTROLS FIRE Fire Protection/Anne Arundel County, Baltimore County 10 permits/to Aug 2026
McCusker Enterprises LLC Fire Protection/Baltimore County, Frederick County 10 permits/to Sep 2025
WFX Fire, Lock & Security, Inc. Fire Protection/Frederick County 10 permits/to Jul 2026
Advanced Integrated Solutions LLC Fire Protection/Frederick County 9 permits/to Sep 2025
ALL RELAIBLE CONTRACTING LLC Fire Protection/Howard County 9 permits/to Jul 2025
Battaglia Homes LLC Fire Protection/Baltimore County, Howard County 9 permits/to Oct 2024
Janet Garner Fire Protection/Baltimore County 9 permits/to Dec 2022
Jimmy Anastasia Fire Protection/Baltimore County 9 permits/to Apr 2023
Melvin Grupp Fire Protection/Baltimore County 9 permits/to Sep 2022
Tony Flemming Fire Protection/Baltimore County 9 permits/to Apr 2023
CONSTANTINE COMMERCIAL Fire Protection/Howard County 8 permits/to Mar 2025
Fireline Powered by Encore-Sprinkler Fire Protection/Frederick County 8 permits/to Jun 2026
FIRE TECH Fire Protection/Anne Arundel County 8 permits/to Aug 2026
Harper Electrical Services, LLC Fire Protection/Anne Arundel County, Frederick County 8 permits/to Jul 2026
Noah Koski Fire Protection/Baltimore County 8 permits/to Jan 2023
PREMIER FIRE PROTECTION Fire Protection/Anne Arundel County, Baltimore County 8 permits/to Jun 2026
SPECIFIED ELECTRICAL SYSTEMS Fire Protection/Anne Arundel County, Frederick County 8 permits/to Sep 2026
A-SERVICE CO., INC. Fire Protection/Anne Arundel County, Howard County 7 permits/to Aug 2026
B&V Sprinkler LLC Fire Protection/Frederick County 7 permits/to Jul 2025
CASTLE SPRINKLER Fire Protection/Anne Arundel County 7 permits/to Jul 2026
COMMERCIAL INTERIOR CONSTRUCTION INC Fire Protection/Howard County 7 permits/to May 2026
Dennis Feola Fire Protection/Baltimore County 7 permits/to Jan 2023
FEDERAL FIRE PROTECTION CORP Fire Protection/Anne Arundel County 7 permits/to Jul 2026
George Jenson III Fire Protection/Baltimore County 7 permits/to Mar 2023
Jay Mousavi Fire Protection/Baltimore County 7 permits/to Jun 2023
jon skarda Fire Protection/Baltimore County 7 permits/to Nov 2024
MAXCELL PLUMBING LLC Fire Protection/Anne Arundel County, Howard County 7 permits/to May 2026
Noels Fire Protection, LLC Fire Protection/Baltimore County 7 permits/to Feb 2023
SHAWN HAGER Fire Protection/Frederick County 7 permits/to Mar 2025

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Source: county permit records. Updated weekly.