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.

• CBS ELECTRIC CO., INC. Electrical/Frederick County, Howard County 20 permits/to Jul 2026
• Charm City Electric Electrical/Anne Arundel County, Frederick County, Howard County 20 permits/to Sep 2026
• CONSTELLATION HOME PRODUCTS & SERICES HVAC/Howard County 20 permits/to Sep 2024
• Deck And Shed Pros Deck & Patio/Frederick County, Howard County 20 permits/to Aug 2026
• DECK TEKTON CONSTRUCTION LLC Deck & Patio/Frederick County, Howard County 20 permits/to Jul 2026
• ENERGETIC ELECTRIC LLC Pool & Spa/Anne Arundel County, Howard County 20 permits/to Jul 2026
• FOSTER ENTERPRISES INC Electrical/Anne Arundel County, Howard County 20 permits/to Sep 2026
• HC Elec State ES 08313 Electrical/Howard County 20 permits/to Aug 2026
• INTERCONNECT SERVICES INC Electrical/Anne Arundel County, Frederick County, Howard County 20 permits/to Jul 2026
• JD ELECTRIC LLC Electrical/Anne Arundel County, Howard County 20 permits/to Aug 2026
• M&A HEATING AND COOLING HVAC/Anne Arundel County, Howard County 20 permits/to Aug 2026
• NATIONAL CONTRACTORS LLC Exterior/Howard County 20 permits/to Jul 2026
• S&B ELECTRIC LLC Solar/Anne Arundel County, Howard County 20 permits/to May 2026
• Tejada & Sons Plumbing and Gas Services LLC Plumbing/Frederick County, Howard County 20 permits/to Mar 2026
• WIREWORX ELECTRIC INC Electrical/Howard County 20 permits/to Aug 2026
• ALWAYS WATERPROOFING Interior/Anne Arundel County, Frederick County, Howard County 19 permits/to Aug 2026
• BAY STATE ELECTRIC INC Electrical/Anne Arundel County, Howard County 19 permits/to Aug 2026
• C.D. WILLIAMS ELECTRIC CO. Electrical/Howard County 19 permits/to Sep 2026
• CHESAPEAKE PLUMBING, INC. Plumbing/Anne Arundel County, Howard County 19 permits/to Sep 2026
• Cosmo Solaris LLC Solar/Frederick County, Howard County 19 permits/to Jul 2026
• D. B. ELECTRICAL SERVICES Pool & Spa/Anne Arundel County, Frederick County, Howard County 19 permits/to Sep 2026
• DMS SIGN CONNECTION INC Sign/Baltimore County, Howard County 19 permits/to Aug 2025
• ELECTRON LLC Accessory Structure/Howard County 19 permits/to Jul 2026
• EMFAL ELECTRIC INC Electrical/Anne Arundel County, Howard County 19 permits/to Aug 2026
• FAMILY FIRE SERVICE AND PLUMBING LLC Plumbing/Howard County 19 permits/to Jan 2026
• GREEN CONSTRUCTION MULTI SERVICES Solar/Anne Arundel County, Howard County 19 permits/to Aug 2026
• GROVE HEATING AND COOLING, INC. HVAC/Anne Arundel County, Howard County 19 permits/to Aug 2026
• HARVEST ELECTRIC LLC Electrical/Anne Arundel County, Howard County 19 permits/to Sep 2026
• HAWKINS ELECTRIC SERVICE INC Electrical/Anne Arundel County, Howard County, Prince George's County 19 permits/to Aug 2026
• HORIZONS UNLIMITED INC 01 16606 Deck & Patio/Howard County 19 permits/to Aug 2026
• ION DEVELOPER LLC Solar/Anne Arundel County, Howard County 19 permits/to Aug 2026
• J J ELECTRIC SERVICE Electrical/Howard County 19 permits/to Sep 2026
• JQ ELECTRIC LLC Electrical/Anne Arundel County, Howard County 19 permits/to Aug 2026
• Northeast Plumbing LLC Plumbing/Frederick County, Howard County 19 permits/to Aug 2026
• NORTHERN CHESAPEAKE BUILDERS CORP Structural/Howard County 19 permits/to Apr 2026
• Plumb/Gas 20020008539 Plumbing/Howard County 19 permits/to Aug 2024
• PORTA CONSTRUCTION INC Deck & Patio/Howard County 19 permits/to Aug 2026
• R.E. CLARKE ELECTRICAL SOLUTIONS LLC Electrical/Anne Arundel County, Howard County 19 permits/to Aug 2026
• RIPPLE PLUMBING Plumbing/Anne Arundel County, Howard County 19 permits/to Jun 2026
• RS PLUMBING LLC Plumbing/Anne Arundel County, Howard County 19 permits/to Sep 2026
• SHANCO COMPANIES LLC Deck & Patio/Anne Arundel County, Howard County 19 permits/to Jul 2026
• SUPREME AIR LLC /DBA/ SUPREME SERVICE TODAY HVAC/Howard County 19 permits/to Sep 2026
• TITAN SOLAR POWER MD INC Solar/Frederick County, Howard County 19 permits/to Aug 2025
• TML INTERNATIONAL LLC Solar/Anne Arundel County, Howard County, Prince George's County 19 permits/to Sep 2026
• VERNON MAY/ MAY ELECTRIC Electrical/Howard County 19 permits/to Sep 2026
• BELTWAY AIR CONDITIONING & HEATING HVAC/Frederick County, Howard County 18 permits/to Aug 2026
• BUILD HD LLC Deck & Patio/Anne Arundel County, Frederick County, Howard County 18 permits/to Aug 2026
• CLOCKWORK BUILDERS LTD Deck & Patio/Howard County 18 permits/to Jul 2026
• DAN PRI CONSTRUCTION INC Deck & Patio/Frederick County, Howard County 18 permits/to Aug 2026
• E C SERVICES INC Deck & Patio/Frederick County, Howard County 18 permits/to Apr 2026

Source: county permit records. Updated weekly.