Find Commercial Contractors in Maryland

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STH, Inc

Alexandria, VA • Arlington, VA • College Park, MD • Gaithersburg, MD • Leesburg, VA • Manassas, VA • Reston, VA • Rockville, MD • Washington, DC • Maryland

Supplier

Commercial, Healthcare, Institutional, Residential

Fire Suppression, Plumbing

STH, Inc is a Supplier that serves the Frederick, MD area and specializes in Fire Suppression, Plumbing.

Johnson Consulting Engineers

Florida • Georgia • Maryland • Pennsylvania

Consultant, Engineer

Commercial, Healthcare, Institutional, Residential

Design and Engineering, Electrical, Fire Suppression, Heating Ventilating and Air Conditioning HVAC, Plumbing, Project Management and Coordination

Johnson Consulting Engineers is a Consultant, Engineer that serves the Baltimore, MD area and specializes in Fire Suppression, Electrical, Design and Engineering, Project Management and Coordination, Heating Ventilating and Air Conditioning HVAC, Plumbing.

Digital Video Solutions, Inc

District of Columbia • Maryland • Texas • Virginia

Specialty Contractor

Commercial, Healthcare, Infrastructure, Residential

Electronic Security

DVS is a full-service electronic security integrator specializing in system design, system installation, and integration.

Elevation Flooring

Delaware • District of Columbia • Maryland • New Jersey • Virginia

Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Ceilings, Countertops, Finish Carpentry, Flooring, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Tile, Wall Finishes

Elevation Flooring is a Specialty Contractor that serves the Halethorpe, MD area and specializes in Metals, Plastic Composite Fabrications, Plaster and Gypsum Board, Flooring, Painting and Coatings, Countertops, Ceilings, Wall Finishes, Finish Carpentry, Tile.

L & R Floors

District of Columbia • Maryland • Virginia • West Virginia

Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Ceilings, Countertops, Finish Carpentry, Flooring, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Tile, Wall Finishes

L & R Floors is a Specialty Contractor that serves the Hyattsville, MD area and specializes in Metals, Plastic Composite Fabrications, Plaster and Gypsum Board, Flooring, Painting and Coatings, Countertops, Ceilings, Wall Finishes, Finish Carpentry, Tile.

COA Barrett LLC

Prince Frederick, MD

Engineer

Commercial, Healthcare, Institutional, Residential

Design and Engineering

COA Barrett LLC is a Engineer that serves the Prince Frederick, MD area and specializes in Design and Engineering.

Curtis Power Solutions

Alexandria, VA • Baltimore, MD • Washington, DC

Supplier

Commercial, Healthcare, Industrial and Energy, Infrastructure

Electrical

Curtis Power Solutions is a Supplier that serves the Arbutus, MD area and specializes in Electrical.

All States Construction Co, Inc

Accomac, VA • Chestertown, MD • Easton, MD • Exmore, VA • Ocean City, MD • Salisbury, MD • Delaware

General Contractor, Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Cast In Place Concrete, Exterior Insulation and Finish Systems Eifs, Fiber Cement Siding, Joint Sealants, Siding, Structural Steel, Veneer Plastering

Complete Exterior Renovation Experts and exterior cladding installers. 

FW Haxel Flag, Banner, Flagpole & Sign Co.

Delaware • District of Columbia • Maryland • Pennsylvania

Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional

FW Haxel Flag, Banner, Flagpole & Sign Co. is a Specialty Contractor that serves the Rosedale, MD area.

Global Facility Solutions

Alabama • Alaska • Arizona • Arkansas • California • Colorado • Connecticut • Delaware • Florida • Georgia • Hawaii • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Hampshire • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming

Engineer

Commercial, Healthcare, Institutional, Residential

Design and Engineering, Project Management and Coordination

Turn-key engineering (MEP) design services, construction management, sustainability consulting including LEED, Energy Star and GHG tracking.

CELHOM INC

District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Residential

Design and Engineering, General Construction Management, Project Management and Coordination, Structural Steel

CELHOM INC is a Specialty Contractor that serves the Potomac, MD area and specializes in Design and Engineering, Project Management and Coordination, General Construction Management, Structural Steel.

Wiles Mensch DC

District of Columbia • Maryland • Virginia

Engineer

Commercial, Infrastructure, Institutional, Residential

Design and Engineering

Wiles Mensch DC is a Engineer that serves the Rockville, MD area and specializes in Design and Engineering.

ALLEGANY DOOR & HARDWARE

District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional

Access Control, Door Hardware, Doors and Frames

Over two decades of supplying Maryland with quality door products has made Allegany Door one of the area’s industry leaders in the distribution of commercial hollow metal doors and frames, wood doors, access control and door hardware.

Our main focus is Division 8 Specification Sections:

08100 – Hollow Metal Doors & Frames

08200 – Wood Doors

08700 – Finish Door Hardware

In addition to expertise Allegany Door also offers services from an on-staff Architectural Hardware Consultant (A.H.C.) and Minority Business Enterprise Certification as a Minority Women-Owned Firm (#91-188).

B Frank Joy,LLC

District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Residential

Communications, Electrical

B Frank Joy,LLC is a Specialty Contractor that serves the Hyattsville, MD area and specializes in Electrical, Communications.

Capitol Finishes, Inc.

District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional

Fluid Applied Flooring

Capitol Finishes, Inc. is a Specialty Contractor that serves the Middle River, MD area and specializes in Fluid Applied Flooring.

Heller Electric Co., Inc.

District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional

Communications, Electrical, Electronic Security

Heller Electric Co., Inc. is a Specialty Contractor that serves the Brandywine, MD area and specializes in Electrical, Electronic Security, Communications.

NGA

Consultant

Commercial, Healthcare, Industrial and Energy, Institutional

Design and Engineering

NGAssociates provides a full range of consulting and design services for the professional foodservice industry. Our expertise spans programming and design, operational consulting, and equipment asset management, allowing us to deliver thoughtful, practical, and innovative solutions tailored to each client.  We work alongside architects and engineers to provide detailed construction drawings to ensure the projects are well planned and can be well executed for a successful outcome for all.

Clear Connection, Inc

District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure

Electronic Security

Clear Connection, Inc is a Specialty Contractor that serves the Beltsville, MD area and specializes in Electronic Security.

Hayles and Howe, Inc.

Connecticut • District of Columbia • Maryland • Massachusetts • Nevada • New Jersey • New York • Ohio • Pennsylvania • Rhode Island • Virginia • West Virginia

Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Ceilings, Countertops, Finish Carpentry, Flooring, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Tile, Wall Finishes

Hayles and Howe, Inc. is a Specialty Contractor that serves the Baltimore, MD area and specializes in Metals, Plastic Composite Fabrications, Plaster and Gypsum Board, Flooring, Painting and Coatings, Countertops, Ceilings, Wall Finishes, Finish Carpentry, Tile.

Ruppert Landscape, Inc.

Alabama • Delaware • District of Columbia • Florida • Georgia • Maryland • Nevada • New Jersey • North Carolina • Oklahoma • Pennsylvania • South Carolina • Tennessee • Texas • Virginia • West Virginia

General Contractor, Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional

Concrete, Earthwork, General Construction Management, Irrigation, Landscaping, Masonry, Project Management and Coordination, Roof Pavers, Site Furnishings, Unit Paving

Ruppert Landscape, Inc. is a General Contractor, Specialty Contractor that serves the Gaithersburg, MD area and specializes in Site Furnishings, Project Management and Coordination, Landscaping, Masonry, Concrete, General Construction Management, Earthwork, Unit Paving, Irrigation, Roof Pavers.

American Countertop Company

Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Ceilings, Countertops, Finish Carpentry, Flooring, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Tile, Wall Finishes

American Countertop Company is a Specialty Contractor that serves the Columbia, MD area and specializes in Metals, Plastic Composite Fabrications, Plaster and Gypsum Board, Flooring, Painting and Coatings, Countertops, Ceilings, Wall Finishes, Finish Carpentry, Tile.

ADP Consultants, Inc.

District of Columbia • Maryland • Virginia

General Contractor, Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Institutional

Bim and Model Making Services, Ceilings, Concrete, Countertops, Curtain Wall and Glazed Assemblies, Demolition, Design and Engineering, Door and Window Hardware, Doors and Frames, Earthwork, Electrical, Entrances and Storefronts, Finish Carpentry, Flooring, General Construction Management, Glass and Glazing, Heating Ventilating and Air Conditioning HVAC, Louvers, Masonry, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Plumbing, Project Management and Coordination, Roof Windows and Skylights, Roofing, Rough Carpentry, Specialty Doors and Frames, Structural Steel, Tile, Translucent Wall and Roof Assemblies, Vents, Wall Finishes, Window Wall Assemblies, Windows, Wood Framing

ADP Consultants, Inc. is a General Contractor, Specialty Contractor that serves the Laurel, MD area and specializes in Door and Window Hardware, Window Wall Assemblies, Electrical, Metals, Design and Engineering, Windows, Plastic Composite Fabrications, Project Management and Coordination, Plaster and Gypsum Board, Masonry, Wood Framing, Glass and Glazing, Translucent Wall and Roof Assemblies, Demolition, Rough Carpentry, Heating Ventilating and Air Conditioning HVAC, Concrete, Flooring, Specialty Doors and Frames, Painting and Coatings, General Construction Management, Earthwork, Countertops, Roof Windows and Skylights, Louvers, Vents, BIM and Model Making Services, Structural Steel, Ceilings, Wall Finishes, Entrances and Storefronts, Doors and Frames, Plumbing, Curtain Wall and Glazed Assemblies, Finish Carpentry, Roofing, Tile.

Custom Stitch Designs for Windows, Inc

Delaware • District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Institutional, Residential

Glazing Surface Films, Window Treatments

Commercial and Residential Window Coverings, Draperies, Film, Awnings, Upholstery

Pleasants Construction Inc.

Maryland • Pennsylvania • Virginia

General Contractor

Commercial, Infrastructure, Institutional, Residential

Demolition, Earthwork

Pleasants Construction Inc. is a General Contractor that serves the Clarksburg, MD area and specializes in Demolition, Earthwork.

Calmi Electrical Company, Inc.

Maryland

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional

Electrical

Calmi Electrical Company, Inc. is a Specialty Contractor that serves the Baltimore, MD area and specializes in Electrical.

SPH Solutions, LLC

District of Columbia • Maryland • Virginia

Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Institutional

SPH Solutions, LLC is a Specialty Contractor that serves the Columbia, MD area.

Bozzuto Construction Company

DC, DC • Delaware • Maryland • Massachusetts • Pennsylvania

General Contractor

Commercial, Healthcare, Infrastructure, Residential

General Construction Management

Bozzuto is a diversified real estate company that specializes in developments, construction, property management, and homebuilding. 

Eastern Contracting Services Inc.

Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional

Ceilings, Countertops, Demolition, Finish Carpentry, Flooring, Masonry, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Rough Carpentry, Tile, Wall Finishes, Wood Framing

Eastern Contracting Services Inc. is a Specialty Contractor that serves the Millersville, MD area and specializes in Metals, Plastic Composite Fabrications, Plaster and Gypsum Board, Masonry, Wood Framing, Demolition, Rough Carpentry, Flooring, Painting and Coatings, Countertops, Ceilings, Wall Finishes, Finish Carpentry, Tile.

Greenlight Total Integrated Systems, LLC

DC, DC • Maryland • Virginia

Consultant

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Project Management and Coordination

Greenlight Total Integrated Systems LLC is a company with BICSI\Comm Scope &  OSHA 30 certified technicians  who provides low voltage for cable plant distribution for voice\data\video, cabling & wiring (data,fiber optics, Coax), CCTV cameras, security installation, secure wireless for DOD & civilian agencies.

PURE SERVICES

Washington, DC • Maryland • Virginia

General Contractor, Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional, Residential

Architectural Design and Engineering, Cleaning Services, Construction Scheduling, Fences and Gates, General Construction Management, Interior Wall Paneling, Metal Doors and Frames, Metals

Pure Services LLC is a construction services firm delivering high-quality residential and commercial solutions focusing on precision, safety, and client satisfaction. Backed by over 13 years of project management experience, we specialize in structural repairs, renovations, decking, roofing, and demolition. Our team is equipped to handle projects of varying scopes with detailed planning, clear communication, and a commitment to on-time, on-budget delivery. Leveraging RSMeans for accurate estimating, we ensure transparency and trust at every construction phase.

EnviroVantage

Connecticut • Maine • Maryland • Massachusetts • New Hampshire • Rhode Island • Vermont

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Demolition

EnviroVantage is a Specialty Contractor that serves the Edgewood, MD area and specializes in Demolition.

Retro Insulation

Easton, MD • Lewes, DE • Milford, DE • Salisbury, MD • Seaford, DE

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Heating Ventilating and Air Conditioning HVAC, Plumbing

We specialize in mechanical insulation, duct systems, steam & chilled water systems, and heat tracing.

S.R Plumbing

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Institutional, Residential

Heating Ventilating and Air Conditioning HVAC, Plumbing, Plumbing General, Plumbing Utilities Distribution

We are the Master plumbing. Master Natural Gas Fitter on MD and VA, and Back Flow certifícate and contractor Class A VA and Master HVAC and fully Insurance

Milestone Building Services

Maryland

General Contractor, Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Electrical

Milestone Building Services is a General Contractor, Specialty Contractor that serves the Gaithersburg, MD area and specializes in Electrical.

Northside Steel Fabricators LLC

DC, DC • Connecticut • Delaware • Florida • Georgia • Maine • Maryland • Massachusetts • New Hampshire • New Jersey • New York • North Carolina • Pennsylvania • South Carolina • Virginia

Specialty Contractor, Supplier

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Art, Fabric Structures, Metal Fabrications, Structural Steel, Structural Steel Framing Erection, Structural Steel Framing Fabrication

Northside Steel Fabricators is a premier provider of high-quality steel fabrication services of structural, miscellaneous and architectural steel products. We are a team of skilled craftsmen with 20 years of experience in the industry, dedicated to creating innovative and durable steel structures for a wide range of clients.

We are also proud to be a minority-owned and women-led small business, committed to fostering a culture of diversity, equity, and inclusion in everything we do. We support minority workers and are dedicated to providing equal opportunities to all employees and partners.

Our ultimate goal is to build long-lasting relationships with our customers and be a driving force in the industry’s success.

Northside Steel Fabricators aims to become the top choice for high-quality, accurate, and customer-satisfying steel fabrication services on the east coast of the United States.

Our mission is to deliver exceptional steel fabrication services, exceeding customer expectations through innovation, quality craftsmanship, and commitment to service.

Native Terrain

Maryland

Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Institutional, Residential

Coastal Construction, Erosion and Sedimentation Controls, Irrigation, Landscaping, Planting Preparation, Plants, Shoreline Protection, Site Controls, Snow Control, Soil Stabilization, Temporary Erosion and Sediment Control, Temporary Tree and Plant Protection, Temporary Vegetation Control, Turf and Grasses, Wetlands

Native Terrain Restoration Services, Inc. is an ecological construction company. As a certified woman-owned business, we provide services as a general contractor and a subcontractor on commercial and government projects. We strive to provide our clients with excellence in our performance through communication, problem solving, partnership, and responsiveness. Services we perform include planting (landscape, reforestation, wetlands, streams, dunes), mowing, landscape maintenance, soil stabilization, erosion control, hydroseeding, irrigation installation and maintenance, site furnishings installation and snow removal.

United Security & Communications, Inc

DC, DC • Maryland • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional, Residential

Access Control, Electronic Security, Integrated Automation Systems For Electronic Security, Security Detection Alarm and Monitoring, Security Equipment, Video Surveillance

USCI is a leading security integration firm serving Maryland, DC, and Northern Virginia since 1985. We specialize in commercial-grade access control, video surveillance, intrusion detection, and intercom systems. Known for our white-glove service, innovative solutions, and commitment to operational excellence, we partner with general contractors, property managers, and institutional clients to deliver secure, scalable, and efficient systems across a range of verticals including data center, education, multifamily, legal, and government.

RM Welding & Installation Inc

Washington, DC • Maryland • North Carolina • South Carolina • Virginia

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Heating Ventilating and Air Conditioning HVAC, Plumbing, Structural Steel

RM Welding & Installation Inc is a Specialty Contractor that serves the Mount Airy, MD area and specializes in Heating Ventilating and Air Conditioning HVAC, Structural Steel, Plumbing.

Elite-A Fire Protection LLC

Maryland

Specialty Contractor

Commercial, Healthcare, Infrastructure, Institutional, Residential

Fire Protection Engineering, Fire Suppression

Certified Fire sprinkler Design, installation, Service and inspection Company. We are licensed in the state of Maryland to Design, Install, Service and inspect fire sprinkler system. Our staff is comprised of veterans in the fire sprinkler industry that boast decades of experience in the industry. We look forward to working with you on your project, suppling top tier service.

Cloud Advocate LLC

DC, DC • Maryland • North Carolina • Virginia • West Virginia

Consultant, Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Communications

Cloud Advocate LLC is a Consultant, Specialty Contractor that serves the Newburg, MD area and specializes in Communications.

Commercial Contractors in Maryland

9,777 Results

STH, Inc

Johnson Consulting Engineers

Digital Video Solutions, Inc

Elevation Flooring

L & R Floors

COA Barrett LLC

Curtis Power Solutions

All States Construction Co, Inc

FW Haxel Flag, Banner, Flagpole & Sign Co.

Global Facility Solutions

CELHOM INC

Wiles Mensch DC

ALLEGANY DOOR & HARDWARE

B Frank Joy,LLC

Capitol Finishes, Inc.

Heller Electric Co., Inc.

NGA

Clear Connection, Inc

Hayles and Howe, Inc.

Ruppert Landscape, Inc.

American Countertop Company

ADP Consultants, Inc.

Custom Stitch Designs for Windows, Inc

Pleasants Construction Inc.

Calmi Electrical Company, Inc.

SPH Solutions, LLC

Bozzuto Construction Company

Eastern Contracting Services Inc.

Greenlight Total Integrated Systems, LLC

PURE SERVICES

EnviroVantage

Retro Insulation

S.R Plumbing

Milestone Building Services

Northside Steel Fabricators LLC

Native Terrain

United Security & Communications, Inc

RM Welding & Installation Inc

Elite-A Fire Protection LLC

Cloud Advocate LLC

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