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.

• CIRCA ENERGY Solar/Anne Arundel County, Baltimore County, Howard County 15 permits/to Aug 2026
• C KING ELECTRIC Electrical/Anne Arundel County, Frederick County, Howard County 15 permits/to Apr 2026
• clean line plumbing llc Plumbing/Anne Arundel County, Frederick County, Howard County 15 permits/to Sep 2026
• CONVERGINT TECHNOLOGIES Electrical/Frederick County, Howard County 15 permits/to Jun 2026
• CWT ELECTRIC LLC Electrical/Frederick County, Howard County 15 permits/to Mar 2026
• Do-It Plumbing & Heating LLC Plumbing/Frederick County, Howard County 15 permits/to Nov 2025
• GREEN FUTURE CONSTRUCTION LLC Deck & Patio/Howard County 15 permits/to Aug 2026
• HERITAGE ELITE LLC Pool & Spa/Anne Arundel County, Frederick County, Howard County 15 permits/to May 2026
• HOFMANN ASSOCIATES INC Fire Protection/Frederick County, Howard County 15 permits/to Aug 2026
• HOMETOWN LANDCAPE & LAWN INC Deck & Patio/Howard County 15 permits/to Jul 2026
• HONEST ELECTRICAL SERVICE Electrical/Anne Arundel County, Howard County 15 permits/to Jul 2026
• JEFF WELCH PLUMBING, INC. Plumbing/Howard County 15 permits/to Aug 2026
• J R TRAWICK COMPANY INC Deck & Patio/Frederick County, Howard County 15 permits/to May 2026
• KASTLE SYSTEMS LLC Electrical/Anne Arundel County, Howard County 15 permits/to Jul 2026
• KNOX ELECTRIC Electrical/Howard County 15 permits/to Jul 2026
• LIGHTHOUSE ELECTRICAL CONTRACTORS INC Electrical/Howard County 15 permits/to Aug 2026
• LIGON ELECTRIC INC Electrical/Anne Arundel County, Frederick County, Howard County 15 permits/to Aug 2026
• MAINSTREET MAINTENANCE LLC Plumbing/Howard County 15 permits/to Aug 2026
• MILTON ELECTRIC CO INC Electrical/Anne Arundel County, Howard County 15 permits/to Sep 2026
• MORGAN KELLER INC Site/Frederick County, Howard County 15 permits/to May 2026
• PATAPSCO PLUMBING LLC Plumbing/Anne Arundel County, Howard County 15 permits/to Aug 2026
• Power Solutions Electrical/Anne Arundel County, Frederick County, Howard County 15 permits/to Aug 2026
• QUALITY CABLE SOLUTIONS INC Electrical/Anne Arundel County, Frederick County, Howard County 15 permits/to Aug 2026
• REVOLUTION SOLAR LLC Solar/Baltimore County, Frederick County, Howard County 15 permits/to Sep 2026
• SB Plumbing, LLC. Plumbing/Frederick County, Howard County 15 permits/to Aug 2026
• SECURITAS TECHNOLOGY CORPORATION Electrical/Anne Arundel County, Howard County 15 permits/to Jun 2026
• SECURITY ENGINEERING INC Electrical/Howard County 15 permits/to Jul 2026
• SHAW ELECTRIC Electrical/Anne Arundel County, Howard County 15 permits/to Sep 2026
• Signature Elevators & Accessible Design LLC Interior/Anne Arundel County, Frederick County, Howard County 15 permits/to May 2026
• ULTRA LIGHTING LLC Electrical/Anne Arundel County, Frederick County, Howard County, Prince George's County 15 permits/to Aug 2026
• UNITED CONSTRUCTION & RESTORATION Solar/Frederick County, Howard County 15 permits/to Jul 2026
• WELOVESOLARPOWER LLC Solar/Howard County 15 permits/to Dec 2025
• WIREMASTER ELECTRIC LLC Electrical/Anne Arundel County, Frederick County, Howard County 15 permits/to Aug 2026
• Alcor Power Solutions LLC Electrical/Anne Arundel County, Frederick County, Howard County 14 permits/to Aug 2026
• AMIRS PLUMBING Plumbing/Anne Arundel County, Howard County 14 permits/to Jun 2026
• Aquatic Solutions, LLC Pool & Spa/Frederick County, Howard County 14 permits/to May 2026
• ARM Group LLC Solar/Frederick County, Howard County 14 permits/to Jul 2026
• AUSTIN CITY LIMITS LLC Howard County 14 permits/to Mar 2026
• BEAON CONTRACTING Accessory Structure/Frederick County, Howard County, Prince George's County 14 permits/to Sep 2026
• BFMD, LLC Plumbing/Howard County 14 permits/to Aug 2026
• BROOKMAN PLUMBING LLC Plumbing/Anne Arundel County, Howard County 14 permits/to Jul 2026
• CAPITOL PLUMBING Plumbing/Anne Arundel County, Howard County 14 permits/to Jul 2026
• CATONSVILLE PROFESSIONAL SERVICES Plumbing/Howard County 14 permits/to Sep 2026
• C.B. Plumbing LLC Plumbing/Anne Arundel County, Frederick County, Howard County 14 permits/to Aug 2026
• COMPASS POINTE PLUMBING & HEATING Plumbing/Howard County 14 permits/to Aug 2026
• COVE ELECTRIC INC Electrical/Howard County 14 permits/to Jul 2026
• CRANDELL ELECTRICAL SERVICES LLC. Electrical/Anne Arundel County, Howard County 14 permits/to Aug 2026
• DELUCA ELECTRIC Electrical/Anne Arundel County, Howard County 14 permits/to May 2026
• D L S CONTRACTORS 01 71824 Deck & Patio/Howard County 14 permits/to Mar 2026
• DW PLUMBING SERVICES Plumbing/Howard County 14 permits/to May 2026

Source: county permit records. Updated weekly.