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.

• JENSON FIRE PROTECTION INC Fire Protection/Anne Arundel County, Frederick County, Prince George's County 739 permits/to Sep 2026
• BLAZEGUARD, INC. Fire Protection/Frederick County 492 permits/to Sep 2026
• BILL-CHARLES W SAUNDERS Fire Protection/Frederick County 352 permits/to Aug 2026
• BARRY DETWILER Fire Protection/Baltimore County, Frederick County 258 permits/to Aug 2026
• SPRINKLERS,LLC FIRE TECH RESID Fire Protection/Frederick County 222 permits/to Aug 2026
• Suzanne Wiley Fire Protection/Baltimore County 182 permits/to Jan 2024
• US HOMES LLC Fire Protection/Baltimore County, Howard County 172 permits/to Mar 2024
• Dennis M Feola Fire Protection/Baltimore County 139 permits/to Mar 2023
• METROPOLITAN FIRE PROTECTION Fire Protection/Anne Arundel County, Baltimore County, Frederick County, Prince George's County 105 permits/to Sep 2026
• MILLER FIRE PROTECTION INC Fire Protection/Anne Arundel County, Baltimore County 93 permits/to Sep 2026
• Premier Fire Protection Services LLC Fire Protection/Frederick County 85 permits/to Aug 2026
• MERRITT CONSTRUCTION SERVICES LLC Fire Protection/Baltimore County, Howard County 82 permits/to Jul 2026
• Noel's Fire Protection, LLC Fire Protection/Anne Arundel County, Baltimore County 75 permits/to Aug 2026
• BLAZEGUARD FIRE PROTECTION SVC Fire Protection/Anne Arundel County 62 permits/to Aug 2026
• MACE ENTERPRISES LLC Fire Protection/Howard County 57 permits/to Sep 2026
• SANDY STANTON Fire Protection/Baltimore County 51 permits/to Sep 2023
• U S Home LLC Fire Protection/Baltimore County, Howard County 47 permits/to Jun 2024
• Absolute Fire Protection Fire Protection/Anne Arundel County, Baltimore County 41 permits/to Sep 2026
• Joseph Matthews Fire Protection/Baltimore County 41 permits/to Mar 2023
• NVR INC Fire Protection/Baltimore County, Howard County 38 permits/to Dec 2023
• Dennis Briggs Fire Protection/Baltimore County, Frederick County 36 permits/to Feb 2025
• DIGITAL PROTECTION SERVICES INC Fire Protection/Anne Arundel County, Howard County 34 permits/to Jul 2026
• REGIONAL FIRE PROTECTION Fire Protection/Frederick County 34 permits/to Sep 2026
• Reliance Fire Protection, Inc. Fire Protection/Anne Arundel County, Baltimore County, Frederick County 32 permits/to Sep 2026
• DOUGLAS BURNS Fire Protection/Baltimore County 30 permits/to Apr 2023
• Taylor Cool Fire Protection/Baltimore County 30 permits/to Jan 2023
• Lisa Putsky Fire Protection/Baltimore County 29 permits/to Oct 2023
• Grant Smith Fire Protection/Baltimore County 27 permits/to Jun 2023
• Jake Zielinski Fire Protection/Frederick County 27 permits/to Jan 2026
• NV Homes Fire Protection/Baltimore County, Howard County 27 permits/to Dec 2025
• Larry Davis Fire Protection/Baltimore County, Frederick County 26 permits/to Jul 2024
• FIRELINE CORPORATION Fire Protection/Anne Arundel County, Baltimore County, Frederick County, Howard County 25 permits/to Aug 2026
• FIRESIDE STONE & PATIO INC Fire Protection/Frederick County, Howard County 25 permits/to Sep 2026
• PETER MILLER Fire Protection/Prince George's County 24 permits/to Sep 2026
• BLAZEGUARD COMMERCIAL SERVICES Fire Protection/Anne Arundel County, Frederick County, Howard County 23 permits/to Aug 2026
• Blazeguard Partners, INC. Fire Protection/Anne Arundel County, Baltimore County 23 permits/to Aug 2026
• JESSICA HICKMAN Fire Protection/Baltimore County, Frederick County 23 permits/to Jul 2026
• CHRIS BENJAMIN Fire Protection/Frederick County 21 permits/to Sep 2025
• FIRE-X SALES & SERVICE CORP Fire Protection/Frederick County 20 permits/to Aug 2026
• JUDD FIRE PROTECTION, INC. Fire Protection/Anne Arundel County, Baltimore County, Frederick County 20 permits/to Jun 2026
• LISA ADAMS Fire Protection/Baltimore County 19 permits/to Feb 2024
• ECONOMY FIRE PROTECTION, INC. Fire Protection/Anne Arundel County, Baltimore County, Frederick County 18 permits/to Jul 2026
• Peter Anderson Fire Protection/Baltimore County 18 permits/to Apr 2023
• VSC fire & security Fire Protection/Anne Arundel County, Baltimore County, Frederick County 18 permits/to Sep 2026
• ADVANCED FIRE PROTECTION SYSTEMS LLC Fire Protection/Baltimore County 17 permits/to Mar 2023
• American Automatic Sprinkler Co. Inc. Fire Protection/Anne Arundel County, Frederick County 17 permits/to Jul 2026
• Bayside Fire Protection Fire Protection/Anne Arundel County, Baltimore County, Frederick County 17 permits/to Sep 2026
• BRG ENTERPRISE DBA BRG FIRE SYSTEMS Fire Protection/Howard County 17 permits/to May 2025
• Fire Alarm Services, Inc. Fire Protection/Frederick County 16 permits/to Mar 2026
• Gary Walter Fire Protection/Baltimore County 15 permits/to Mar 2023

Source: county permit records. Updated weekly.