Find and Invite the Best Commercial Utility Contractors in Ontario, CA

S&H Civilworks is a construction and engineering company specializing in concrete and asphalt paving, with a staff that has over 40 years of combined experience ensuring a streamlined process and high-quality results for their projects.

Pro-Craft is an award-winning AQC-certified plumbing and underground utility contractor serving nine Southern California counties. The company, which has been in operation for 20 years, provides end-to-end solutions in the education, healthcare, institutional, commercial, hospitality/gaming, and heavy civil markets, and also offers fire protection and fire sprinkler services.

Leo Tidwell Excavating Corp. (ltec) is a company specializing in underground telephone, gas, and power substructure placement, serving major companies across central and northern California, as well as the coast near the Nevada border.

Pacific West Underground is a California-based company specializing in site maintenance services including sewer, water, storm drain, telecommunications, and electrical conduit projects for housing tracts and public utilities.

Valley Pipeline Inc. is a certified underground utility contractor specializing in the installation of wet and dry utilities, including sewer, water tie-ins, stormwater retention, fire protection systems, and certified welding, with a focus on federally funded projects in California.

Donald Tate Electric Corp is a contractor specializing in electrical work for commercial, hospitality, multifamily, and auto dealership sectors. The company offers services in pre-construction, dry utilities, and works closely with clients to provide quality work at fair prices.

FASTECH is a construction company specializing in end-to-end renewable energy solutions, including the engineering, procurement, and construction (EPC) of hydrogen fuel production facilities, biogas solutions, and conventional fueling infrastructure. With over 30 years of industry experience, FASTECH is dedicated to innovating and building the infrastructure for a greener and more efficient energy industry.

Van Dyke Corporation is a small business based in Twentynine Palms, California, specializing in underground utilities, including water, sewer, and storm drain systems, as well as high-temperature water services, grading, aggregate sales and delivery, earthwork, asphalt, and specialty concrete septic systems. Established by Homer Van Dyke in 1959 and incorporated in 1983, the company has a broad range of experience in large-scale pipeline construction projects and other infrastructure works.

Qwest Engineering, Inc. is a licensed General Engineering Contractor Company that specializes in earthwork, dry utilities, and demolition. Operating since 1996, the company has worked on construction and redevelopment projects for schools, medical buildings, retail, office, and industrial spaces in Southern and Central California.

GRP Contractors, Inc. is a construction company specializing in sewer, water, fire, and dry utility pipeline services, dedicated to providing superior construction services and fostering great client and employee relations in Southern California.

Cal Pacific Constructors, Inc. (CPCI) is a minority-owned, union-signatory firm specializing in commercial construction and infrastructure projects, including new construction, tenant improvements, demolition, site preparation, utilities, renewable construction, and EV charging stations. With a strong track record for quality and safety, CPCI offers comprehensive end-to-end solutions from planning and design to construction and maintenance, serving as a trusted partner for major infrastructure projects across California.

Earth Tek Engineering Corporation is a construction and engineering company based in Chino Hills, California. The company offers a range of services including pre-construction, construction, and post-construction, with a focus on safety and customer satisfaction.

Miller Equipment Company, Inc. is a union general engineering contractor specializing in a variety of construction services including soil cement mix & place, equipment rental, and grading/excavation, with extensive experience in major freeways, airports, and levee systems in Southern California and the Western United States.

KEC Engineering is a company with over 50 years of experience in heavy engineering construction projects, specializing in concrete construction with difficult underground shoring requirements, and working with both public agencies and private developers in Southern California.

Kana Subsurface Engineering is a disabled veteran-owned construction company based in California that specializes in underground utilities installation, subsurface locating, utility potholing, and vault inspection. The company provides services to government agencies, designers, developers, and contractors, and is known for its use of modern tools and technology to ensure quality services and data management.