Find Specialty Contractors in Maryland

W. H. Boyer, Inc.

W. H. Boyer, Inc. is a Specialty Contractor that serves the Glenwood, MD area and specializes in Landscape Design and Engineering, Landscaping.

Netco, Inc.

District of Columbia • Maryland • Virginia • West Virginia

Specialty Contractor

Commercial, Healthcare

Communications, Electronic Security, Healthcare Equipment, Security Detection Alarm and Monitoring, Security Equipment, Telephone Specialties, Temporary Telecommunications

Netco, Inc. is a Specialty Contractor that serves the Frederick, MD area and specializes in Communications, Electronic Security, Healthcare Equipment, Security Detection Alarm and Monitoring, Security Equipment, Telephone Specialties, Temporary Telecommunications.

Carefree Industries

Washington, DC • Maryland

Specialty Contractor

Commercial, Residential

Architectural Wood Casework, Countertops, Manufactured Casework

Carefree Industries is a Specialty Contractor that serves the Baltimore, MD area and specializes in Architectural Wood Casework, Countertops, Manufactured Casework.

Perpetual Electric

Maryland

Specialty Contractor

Commercial, Institutional, Residential

Electrical General

Perpetual Electric is a Specialty Contractor that serves the Hollywood, MD area and specializes in Electrical General.

Electronic Security Services, Inc. (ESSI)

Washington, DC • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional, Residential

Access Control, Access Doors and Panels, Electronic Security, Gate Operators, Integrated Automation Actuators and Operators, Integrated Automation Systems For Electronic Security, Security Detection Alarm and Monitoring, Security Equipment, Video Surveillance

For over four decades, Electronic Security Services, Inc. (ESSI) has been a trusted leader in security integration, providing innovative, reliable, and high-quality solutions tailored to the unique needs of multifamily and commercial properties. Our expertise spans access control, video surveillance, visitor entry, electronic locking hardware, and gate operator systems—delivering technology-driven security with a commitment to excellence.

Our Mission
At ESSI, our mission is to provide intelligent security solutions that protect and enhance the communities we serve. We combine cutting-edge technology with expert craftsmanship to deliver seamless, efficient, and scalable security systems that support our clients' long-term success.

Our Commitment
Our dedication extends beyond installing and servicing security systems, we are committed to being a true partner to our clients. With a customer-first mindset, we prioritize responsiveness, transparency, and tailored support, ensuring systems operate at peak performance while minimizing downtime.

We don’t believe in lip service, only real service. From the first consultation to ongoing maintenance, our team is driven by integrity, expertise, and a passion for problem-solving. Whether addressing a routine service call or designing a large-scale security upgrade, ESSI delivers solutions that provide peace of mind, efficiency, and lasting value.

Why ESSI?
- Over 40 years+ of proven expertise in electronic security integration.
- Comprehensive solutions from installation to managed services.
- Dedicated, highly skilled professionals who put customers first.
- Commitment to innovation with industry-leading technologies.
- A service-oriented approach that prioritizes uptime, reliability, and long-term client success

At ESSI, security isn’t just about technology, it is about trust, partnership, and delivering real results for the communities we serve. 

Systems We Install, Service, Host, and Support - 
Visitor Entry, Video & Audio Intercoms, Access Control, Video Surveillance, ADA Auto Door Operators, Gate Operators, Smart Apartment Locks, Intrusion / Panic Alarm, Emergency Call Stations, Medeco Cylinders, Electronic Locking Hardware

Some of Our Favorite Brands We Install, Service, Host, and Support -
Brivo, Eagle Eye, LiftMaster, SwiftLane, ButterflyMX, MyDoorView, Kantech, Cansec, AiPhone, DoorKing, Alibi, HilVision, Exaqvision, Keyscan, Salto, 1Valet, 2N, Torus, OpenEye, FAAC, Security Door Controls & More!

CoreTech Ventures LLC

Washington, DC • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Audio Video Communications, Communications, Data and Voice Communications, Electrical, Information Specialties, Integrated Automation Systems For Communications, Technology Design and Engineering, Telephone Specialties, Temporary Telecommunications

CoreTech Ventures LLC is a Specialty Contractor that serves the Fort Washington, MD area and specializes in Audio Video Communications, Communications, Data and Voice Communications, Electrical, Information Specialties, Integrated Automation Systems For Communications, Technology Design and Engineering, Telephone Specialties, Temporary Telecommunications.

Hyland advisors

Ellicott City, MD

Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Institutional, Residential

General Construction Management

Hyland advisors is a Specialty Contractor that serves the Ellicott City, MD area and specializes in General Construction Management.

RKNY Electric & Construction

RKNY Electric & Construction is a Specialty Contractor that serves the Columbia, MD area and specializes in Electrical.

Frederick County Government

Frederick County Government is a Specialty Contractor that serves the Frederick, MD area and specializes in Electronic Security.

Premier flooring installation 1 inc

DC, DC • Maryland • Pennsylvania • Virginia

Specialty Contractor

Commercial, Residential

Carpeting, Ceramic Tiling, Flooring, Quarry Tiling, Resilient Flooring, Tile, Wall Carpeting

Premier flooring installation 1 inc is a Specialty Contractor that serves the Rosedale, MD area and specializes in Carpeting, Ceramic Tiling, Flooring, Quarry Tiling, Resilient Flooring, Tile, Wall Carpeting.

Roofing By Elite

Beltsville, MD

Specialty Contractor

Commercial, Institutional

Roofing

Roofing By Elite is a Specialty Contractor that serves the Beltsville, MD area and specializes in Roofing.

RMS METALS LLC

Maryland

Specialty Contractor

Commercial

Heating Ventilating and Air Conditioning HVAC

RMS METALS LLC is a Specialty Contractor that serves the Severn, MD area and specializes in Heating Ventilating and Air Conditioning HVAC.

Environmental Quality Resources LLC

Environmental Quality Resources LLC is a Specialty Contractor that serves the Gambrills, MD area and specializes in Landscaping.

Axis Concrete Construction, LLC

Maryland • Pennsylvania • Virginia

Specialty Contractor

Commercial, Residential

Cast In Place Concrete, Cast In Place Concrete Retaining Walls

Axis Concrete Construction, LLC is a Specialty Contractor that serves the Westminster, MD area and specializes in Cast In Place Concrete, Cast In Place Concrete Retaining Walls.

Greenridge Contractors Inc.

Maryland

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Grading

Greenridge Contractors Inc. is a Specialty Contractor that serves the Hagerstown, MD area and specializes in Grading.

Emerald Landscaping Corp.

Maryland

Specialty Contractor

Commercial, Residential

Erosion and Sedimentation Controls, Excavation and Fill, Landscaping, Planting Preparation, Plants, Sidewalks, Stone Retaining Walls, Transplanting

Emerald Landscaping Corp. is a Specialty Contractor that serves the Gaithersburg, MD area and specializes in Erosion and Sedimentation Controls, Excavation and Fill, Landscaping, Planting Preparation, Plants, Sidewalks, Stone Retaining Walls, Transplanting.

Subcontractor

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial, Residential

Heating Ventilating and Air Conditioning HVAC

Subcontractor is a Specialty Contractor that serves the Laurel, MD area and specializes in Heating Ventilating and Air Conditioning HVAC.

Pro Plumbing Services LLC

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Plumbing, Plumbing General

Pro Plumbing Services LLC is a Specialty Contractor that serves the Mount Airy, MD area and specializes in Plumbing, Plumbing General.

BE Genius

DC, DC • Maryland • New Jersey • North Carolina • Pennsylvania • South Carolina • Virginia • West Virginia

Specialty Contractor

Commercial

Design and Engineering

BE Genius is a Specialty Contractor that serves the Severn, MD area and specializes in Design and Engineering.

Sunbelt Rentals

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial, Industrial and Energy, Infrastructure

Rough Carpentry

Sunbelt Rentals is a Specialty Contractor that serves the Elkridge, MD area and specializes in Rough Carpentry.

Flooring Partners

Delaware • Maryland • New Jersey • Pennsylvania • Virginia

Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Carpeting, Flooring, Tile

Flooring Partners is a Specialty Contractor that serves the Baltimore, MD area and specializes in Carpeting, Flooring, Tile.

Golden Acres Contracting

Annapolis, MD • Baltimore, MD • Washington, DC

Specialty Contractor

Commercial, Residential

Demolition, Landscaping, Roofing, Rough Carpentry

Golden Acres Contracting is a Specialty Contractor that serves the Crownsville, MD area and specializes in Demolition, Landscaping, Roofing, Rough Carpentry.

Grandstand Design Enterprises, Inc.

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial, Institutional

Grandstand Design Enterprises, Inc. is a Specialty Contractor that serves the Annapolis, MD area.

Capital INK Corp

Albany, NY • Atlanta, GA • Augusta, GA • Austin, TX • Baton Rouge, LA • Bismarck, ND • Boise, ID • Boston, MA • Carson City, NV • Charleston, SC • Cheyenne, OK • Columbus, OH • Concord, NH • Denver, CO • Des Moines, IA • Dover, DE • Frankfort, KY • Hartford, CT • Helena, MT • Indianapolis, IN • Jackson, MS • Jefferson City, MO • Juneau, AK • Lansing, MI • Lincoln, NE • Little Rock, AR • Madison, WI • Montgomery, AL • Montpelier, VT • Nashville, TN • Oklahoma City, OK • Philadelphia, PA • Phoenix, AZ • Providence, RI • Raleigh, NC • Richmond, VA • Sacramento, CA • Salem, OR • Salt Lake City, UT • San Diego, CA • Santa Fe, NM • Silver Spring, MD • Springfield, IL • St Paul, MN • Tallahassee, FL • Topeka, KS • Trenton, NJ

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional, Residential

We are a National signage and graphics company specializing in design, production and installation across the continental United States, Phillipines, and Canada.  From single banners to nationwide rollouts, we have you covered.

Concept Wood Design, LLC

Maryland

Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional, Residential

Project Management and Coordination

Millwork

Calvert Specialties, LLC

Washington, DC • Maryland • Virginia

Specialty Contractor

Commercial

Heating Ventilating and Air Conditioning HVAC, Plumbing

Calvert Specialties, LLC is a Specialty Contractor that serves the Owings, MD area and specializes in Heating Ventilating and Air Conditioning HVAC, Plumbing.

Waters Services LLC

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial

Electrical

Waters Services LLC is a Specialty Contractor that serves the Warwick, MD area and specializes in Electrical.

RTZ A V

RTZ A V is a Specialty Contractor that serves the Elkridge, MD area and specializes in Communications.

Número Uno Floors LLC

Maryland

Specialty Contractor

Commercial, Residential

Concrete, Demolition

Número Uno Floors LLC is a Specialty Contractor that serves the Laurel, MD area and specializes in Concrete, Demolition.

Delaware Elevator

Delaware Elevator is a Specialty Contractor that serves the Mardela Springs, MD area and specializes in Electrical.

Poole and Kent

Maryland • Virginia

Specialty Contractor

Infrastructure

Heating Ventilating and Air Conditioning HVAC, Plumbing

Poole and Kent is a Specialty Contractor that serves the Halethorpe, MD area and specializes in Heating Ventilating and Air Conditioning HVAC, Plumbing.

Absolute Builders

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial

Rough Carpentry

Absolute Builders is a Specialty Contractor that serves the Lanham, MD area and specializes in Rough Carpentry.

Wsp

Maryland

Specialty Contractor

Healthcare

Heating Ventilating and Air Conditioning HVAC

Wsp is a Specialty Contractor that serves the Columbia, MD area and specializes in Heating Ventilating and Air Conditioning HVAC.

Apex Roofing and Exteriors

Maryland • Pennsylvania

Specialty Contractor

Commercial, Residential

Roofing

Apex Roofing and Exteriors is a Specialty Contractor that serves the Bel Air, MD area and specializes in Roofing.

Black Anchor Roofing

Annapolis, MD

Specialty Contractor

Commercial, Residential

Roofing

Black Anchor Roofing is a Specialty Contractor that serves the Annapolis, MD area and specializes in Roofing.

Bear Drywall & Paint LLC

Bear Drywall & Paint LLC is a Specialty Contractor that serves the Annapolis, MD area and specializes in Structural Steel.

Mid Atlantic Shelving Distributors

DC, DC • Florida • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Project Management and Coordination

We Furnish and Install Divisions 10 and Division 12 products, such as shelving, pallet rack, wire partitions, Demountable walls, modular buildings, in plant offices, lockers, mezzanines, and labs---we also do EV Charging Stations 

EAI

EAI is a Specialty Contractor that serves the Rockville, MD area and specializes in Access Control.

DN Contracting LLC

Baltimore, MD • Maryland

Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Painting, Painting and Coatings

Baltimore based commercial painting company. 

Hutchinson International Corp

Washington, DC • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure

Temporary Cranes

Hutchinson International Corp is a Specialty Contractor that serves the Beltsville, MD area and specializes in Temporary Cranes.

Specialty Contractors in Maryland

7,675 Results

W. H. Boyer, Inc.

Netco, Inc.

Carefree Industries

Perpetual Electric

Electronic Security Services, Inc. (ESSI)

CoreTech Ventures LLC

Hyland advisors

RKNY Electric & Construction

Frederick County Government

Premier flooring installation 1 inc

Roofing By Elite

RMS METALS LLC

Environmental Quality Resources LLC

Axis Concrete Construction, LLC

Greenridge Contractors Inc.

Emerald Landscaping Corp.

Subcontractor

Pro Plumbing Services LLC

BE Genius

Sunbelt Rentals

Flooring Partners

Golden Acres Contracting

Grandstand Design Enterprises, Inc.

Capital INK Corp

Concept Wood Design, LLC

Calvert Specialties, LLC

Waters Services LLC

RTZ A V

Número Uno Floors LLC

Delaware Elevator

Poole and Kent

Absolute Builders

Wsp

Apex Roofing and Exteriors

Black Anchor Roofing

Bear Drywall & Paint LLC

Mid Atlantic Shelving Distributors

EAI

DN Contracting LLC

Hutchinson International Corp

Top Cities in Maryland

Contractors in Baltimore (1122)

Maryland

Contractors in Frederick (354)

Maryland

Contractors in Rockville (331)

Maryland

Contractors in Gaithersburg (301)

Maryland

Contractors in Silver Spring (266)

Maryland

Contractors in Columbia (238)

Maryland

Contractors in Annapolis (226)

Maryland

Contractors in Laurel (196)

Maryland

Contractors in Bethesda (190)

Maryland

Contractors in Beltsville (181)

Maryland

Contractors in Hyattsville (173)

Maryland

Contractors in Upper Marlboro (173)

Maryland

Contractors in California (142)

Maryland

Contractors in Hagerstown (136)

Maryland

Contractors in Glen Burnie (132)

Maryland

Contractors in Bowie (119)

Maryland

Contractors in Owings Mills (112)

Maryland

Contractors in Elkridge (105)

Maryland

Contractors in Hanover (103)