Contractors in Ontario, CA

22,264 Results within

Market Sector
Company Type
Business Classification
Trades and Services

EJD Engineering

Alhambra, CA • Anaheim, CA • Bloomington, CA • Brea, CA • Cerritos, CA • Chino Hills, CA • Chino, CA • Covina, CA • Downey, CA • El Monte, CA • Fontana, CA • Hacienda Heights, CA • Jurupa Valley, CA • La Puente, CA • Los Angeles, CA • Montebello, CA • Monterey Park, CA • Moreno Valley, CA • Norco, CA • Ontario, CA • Orange, CA • Paramount, CA • Pomona, CA • Rancho Cucamonga, CA • Riverside, CA • Rowland Heights, CA • San Bernardino, CA • Santa Ana, CA • Santa Fe Springs, CA • South El Monte, CA • Temple City, CA • West Covina, CA • Whittier, CA • Yorba Linda, CA
Engineer, General Contractor
Commercial, Residential
Architectural Design and Engineering
EJD Engineering, Inc. was founded on the principles of understanding and respecting our client's requests. Once our client's needs are determined, EJD Engineering strives to provide a systematic and accurate service at a fair exchange for such services. The company is proud to go the extra mile and provide value engineering options for low construction costs. EJD Engineering attempts to educate our clients on the reasoning of the design decisions and answer any concerns immediately. The company shall utilize industry leading modeling programs, ensure compliance with all governing codes, and guarantee all designs are methodically thought through. The services of EJD Engineering, Inc. are administered to benefit our client with the ability to build with the most current material and construction methods in a safe and cost effective manner.
Company Logo

Xdelco Electrical Inc

Alhambra, CA • Anaheim, CA • Arcadia, CA • Azusa, CA • Brea, CA • Buena Park, CA • Burbank, CA • Carson, CA • Cerritos, CA • Chino Hills, CA • Chino, CA • Claremont, CA • Compton, CA • Corona, CA • Covina, CA • Cypress, CA • Downey, CA • Eastvale, CA • El Monte, CA • Fontana, CA • Fullerton, CA • Garden Grove, CA • Gardena, CA • Glendale, CA • Glendora, CA • Huntington Beach, CA • Inglewood, CA • Irvine, CA • Jurupa Valley, CA • La Verne, CA • Lancaster, CA • Lawndale, CA • Long Beach, CA • Los Angeles, CA • Midway City, CA • Monrovia, CA • Montclair, CA • Montebello, CA • Norco, CA • Norwalk, CA • Ontario, CA • Orange, CA • Palos Verdes Estates, CA • Pasadena, CA • Pomona, CA • Rancho Cucamonga, CA • Rancho Palos Verdes, CA • Redondo Beach, CA • Riverside, CA • Rosamond, CA • Rosemead, CA • San Bernardino, CA • San Dimas, CA • Santa Ana, CA • Santa Monica, CA • Torrance, CA • Upland, CA • Van Nuys, CA • West Covina, CA • Whittier, CA • Yorba Linda, CA
Engineer
Commercial, Healthcare, Industrial and Energy, Institutional, Residential
Access Control, Electrical, Electrical General, Electrical Utilities High and Medium Voltage Distribution
We specialize in delivering reliable, efficient, and code-compliant electrical solutions for commercial and industrial projects across Southern California. With over a decade of combined experience, our licensed team of electricians and project managers brings a strong track record of quality workmanship, on-time delivery, and client satisfaction. Whether it's lighting retrofits, panel upgrades, full rewiring, or electrical remodeling for retail, office, or warehouse spaces, we are committed to safety, performance, and value in every project we take on. From planning and permitting to execution and inspection, Xdelco Electrical is your trusted partner for jobs that demand precision and professionalism. We take pride in building long-term relationships through honest communication, transparent pricing, and flexible scheduling, because we know our clients' businesses never stop, and neither do we. Let Xdelco Electrical power your next project.

URSteel

Anaheim, CA • Anza, CA • Banning, CA • Beaumont, CA • Big Bear City, CA • Big Bear Lake, CA • Bloomington, CA • Brea, CA • Cabazon, CA • Calimesa, CA • Cathedral City, CA • Chino Hills, CA • Chino, CA • Claremont, CA • Coachella, CA • Colton, CA • Corona, CA • Costa Mesa, CA • Desert Hot Springs, CA • Diamond Bar, CA • Eastvale, CA • Fontana, CA • Fountain Valley, CA • Fullerton, CA • Garden Grove, CA • Grand Terrace, CA • Hemet, CA • Hesperia, CA • Highland, CA • Homeland, CA • Huntington Beach, CA • Indian Wells, CA • Indio, CA • Irvine, CA • Jurupa Valley, CA • La Quinta, CA • Lake Arrowhead, CA • Lake Elsinore, CA • Lake Forest, CA • Loma Linda, CA • Mecca, CA • Menifee, CA • Mentone, CA • Montclair, CA • Moreno Valley, CA • Murrieta, CA • Newport Beach, CA • Norco, CA • Ontario, CA • Orange, CA • Palm Desert, CA • Palm Springs, CA • Perris, CA • Phelan, CA • Placentia, CA • Pomona, CA • Rancho Cucamonga, CA • Rancho Mirage, CA • Redlands, CA • Rialto, CA • Riverside, CA • San Bernardino, CA • San Jacinto, CA • Santa Ana, CA • Temecula, CA • Thermal, CA • Tustin, CA • Upland, CA • Walnut, CA • Westminster, CA • Wildomar, CA • Winchester, CA • Yorba Linda, CA • Yucaipa, CA
Specialty Contractor, Supplier
Commercial, Industrial and Energy, Infrastructure, Residential
Concrete, Structural Steel
URSteel is a Specialty Contractor, Supplier that serves the Beaumont, CA area and specializes in Concrete, Structural Steel.
Company Logo

M&M Concrete

Anaheim, CA • Azusa, CA • Baldwin Park, CA • Banning, CA • Beaumont, CA • Bloomington, CA • Brea, CA • Buena Park, CA • Calimesa, CA • Chino Hills, CA • Chino, CA • City of Industry, CA • Claremont, CA • Colton, CA • Corona, CA • Covina, CA • Crestline, CA • Diamond Bar, CA • Eastvale, CA • El Monte, CA • Fontana, CA • Fullerton, CA • Garden Grove, CA • Hacienda Heights, CA • Hemet, CA • Hesperia, CA • Highland, CA • Jurupa Valley, CA • La Habra Heights, CA • La Habra, CA • La Mirada, CA • La Verne, CA • Lake Arrowhead, CA • Loma Linda, CA • Menifee, CA • Mentone, CA • Montclair, CA • Moreno Valley, CA • Norco, CA • Norwalk, CA • Nuevo, CA • Ontario, CA • Orange, CA • Perris, CA • Pomona, CA • Rancho Cucamonga, CA • Redlands, CA • Rialto, CA • Riverside, CA • Rowland Heights, CA • Running Springs, CA • San Bernardino, CA • San Dimas, CA • San Jacinto, CA • Santa Ana, CA • Tustin, CA • Upland, CA • Victorville, CA • Walnut, CA • West Covina, CA • Whittier, CA • Yorba Linda, CA • Yucaipa, CA
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Cast In Place Concrete, Cast In Place Concrete Retaining Walls, Concrete, Concrete Accessories, Concrete Finishing, Concrete Paving, Curbs and Gutters, Curbs Gutters Sidewalks and Driveways, Demolition, Driveways, Earthwork, Excavation and Fill, Grading, Grouting, Masonry, Retaining Walls, Sidewalks, Site Clearing, Unit Masonry, Unit Masonry Retaining Walls
M&M Concrete is a trusted Concrete, Demolition, Grading, Excavating, and Masonry contractor proudly serving homeowners, businesses, and builders throughout Southern California. We specialize in high-quality concrete construction including ADA compliant flatwork, driveways, approaches, handicap ramps, walkways, ADU's, foundations, pour in place retaining/freestanding walls, and decorative finishes designed to enhance curb appeal. Our masonry and block wall services include new CMU walls (Freestanding or Retaining), privacy fencing, and expert repair or replacement of aging structures. We also provide safe and efficient demolition services for concrete removal, site clearing, and project tear-downs — ensuring properties are ready for fresh construction. Our grading and excavating crews handle precise leveling, trenching, and site preparation for slabs, utilities, drainage, and new builds with long-lasting stability in mind. At M&M Concrete, we combine skilled craftsmanship with durable materials built to withstand California weather and heavy use. Our team is licensed, fully equipped, and committed to delivering excellent service, clear communication, and clean job sites from start to finish. Whether it’s a small residential improvement or a large commercial development, we take pride in results that stand strong for years to come.
Company Logo

CNG CONTRACTING

Barrie, ON • Brampton, ON • Burlington, ON • Caledon, ON • Cambridge, ON • Harley Canton, ON • London, ON • Markham, ON • Milton, ON • Mississauga, ON • Ontario, CA • Oshawa, ON • Richmond Hill, ON • St Catharines, ON • Toronto, ON • Ontario
General Contractor, Specialty Contractor
Commercial, Healthcare, Infrastructure, Institutional, Residential
Acoustic Ceilings, Aluminum Siding, Blanket Insulation, Blown Insulation, Board Insulation, Board Product Air Barriers, Carpeting, Cast In Place Concrete, Ceilings, Cement Plastering, Ceramic Tile Faced Panels, Ceramic Tiling, Cleaning and Maintenance Of Existing Period Conditions, Cleaning Services, Closet Doors, Concrete, Concrete Finishing, Concrete Paving, Concrete Tiling, Construction Waste Management and Disposal, Countertops, Curbs Gutters Sidewalks and Driveways, Custom Ornamental Simulated Woodwork, Dampproofing, Decking, Decorative Finishing, Demolition, Door and Window Hardware, Door Hardware, Electrical, Electrical General, Estimating, Final Cleaning, Finish Carpentry, Fire Detection and Alarm, Flashing and Trim, Flooring, Flooring Treatment, Folding Doors and Grills, Forming, General Construction Management, Grading, Grouting, Gypsum Board, Gypsum Plastering, Hardboard Siding, Heating Ventilating and Air Conditioning HVAC, HVAC Air Distribution System Cleaning, HVAC General, Interior Design, Interior Specialties, Interior Wall Paneling, Irrigation, Job Site Data Collection and Reporting, Landscape Design and Engineering, Landscaping, Loose Fill Insulation, Masonry, Masonry Flooring, Membrane Roofing, Mirrors, Painting, Painting and Coatings, Paver Tiling, Paving and Surfacing, Plaster and Gypsum Board, Plaster and Gypsum Board Assemblies, Plumbing, Plumbing General, Project Management, Project Management and Coordination, Roof Accessories, Roof Specialties, Roofing, Rough Carpentry, Shingles and Shakes, Site Clearing, Sliding Glass Doors, Soffit Vents, Specialty Flooring, Sprayed Insulation, Stoves, Structure Demolition, Structured Polycarbonate Panel Assemblies, Toilet Bath and Laundry Accessories, Tubs and Pools, Wall Finishes, Wardrobe and Closet Specialties, Window Hardware, Window Treatments, Windows, Wood Flooring, Wood Framing, Wood Paneling, Wood Screens and Shutters
CNG Contracting is a family-owned renovation company based in Brampton, dedicated to transforming spaces into functional and aesthetically pleasing environments. Since our inception in 2005, we have been driven by a passion for craftsmanship and a commitment to delivering exceptional quality in every project we undertake. Our journey began with the simple belief that using our hands to build meaningful structures can change lives. Over the years, we have built a reputation in the Greater Toronto Area for our integrity, reliability, and innovative solutions. Each renovation represents not just a project, but a partnership with our clients, built on trust and communication. At CNG Contracting, we understand that every space tells a story. Our mission is to enhance the value of our clients’ investments by creating tailored solutions that reflect their unique needs and aspirations. Whether it’s a cozy home renovation or a large-scale commercial project, our expert team is dedicated to ensuring that every detail meets the highest standards of quality. A Legacy of Quality and Commitment We take pride in our collaborative approach, working closely with clients throughout the renovation process to ensure their vision is fully realized. Our focus on exceptional service and transparent communication has been the cornerstone of our success, enabling us to build lasting relationships with each client. As we continue to grow, our dedication to quality and craftsmanship remains unwavering. CNG Contracting is more than just a renovation company; we are your trusted partner in creating spaces that inspire and enhance your lifestyle. Our Mission At CNG Contracting, we strive to provide renovation services that meet the diverse requirements of clients in Toronto and beyond. Our mission is to design spaces that not only fulfill functional needs but also resonate with the personal styles and aspirations of our clients. We believe in building trust through exceptional quality and service. Our History CNG Contracting started in 2005 as a family-owned business driven by a love for construction. Our vision was straightforward: to create functional and aesthetically pleasing structures that improve the quality of life for individuals and businesses alike. With each project, our reputation for craftsmanship and dedication has grown.

Frequently Asked Questions

How many contractors in Ontario, CA are on the Procore Construction Network?

There are currently 22,264 contractors in Ontario, CA on the Procore Construction Network.

How can I find and connect with contractors in Ontario, CA?

The Procore Construction Network allows you to search for contractors in Ontario, CA that meet your business needs. Most companies provide a phone number or website on their business page so you can easily connect with them.

How can contractors in Ontario, CA join the Procore Construction Network?

The Procore Construction Network is free and open to any businesses in the construction industry. Click Sign Up at the top of this page to submit your information and create your business page.

How do I know what areas contractors in Ontario, CA cover?

Most businesses listed on the Procore Construction Network have updated their service area. Select a business to view a service area map and find what other areas they work in.

How do I invite contractors in Ontario, CA on the Procore Construction Network to bid on projects?

The Procore platform offers a Bidding tool to Procore customers. If your company uses our Bidding solution, you can search and invite businesses on the Procore Construction Network directly from the Bidding tool. Not yet using Procore? Request a demo.

How many contractors in Ontario, CA are on the Procore Construction Network?

There are currently 22,264 contractors in Ontario, CA on the Procore Construction Network.

How can I find and connect with contractors in Ontario, CA?

The Procore Construction Network allows you to search for contractors in Ontario, CA that meet your business needs. Most companies provide a phone number or website on their business page so you can easily connect with them.

How can contractors in Ontario, CA join the Procore Construction Network?

The Procore Construction Network is free and open to any businesses in the construction industry. Click Sign Up at the top of this page to submit your information and create your business page.

How do I know what areas contractors in Ontario, CA cover?

Most businesses listed on the Procore Construction Network have updated their service area. Select a business to view a service area map and find what other areas they work in.

How do I invite contractors in Ontario, CA on the Procore Construction Network to bid on projects?

The Procore platform offers a Bidding tool to Procore customers. If your company uses our Bidding solution, you can search and invite businesses on the Procore Construction Network directly from the Bidding tool. Not yet using Procore? Request a demo.