Contractors in California

Commercial electrical contractor specializing in lighting and electrical maintenance, repairs, service, replacements, new construction, remodels, and upgrades for commercial properties.

Arch Plumbing Inc. is a family-owned, full-service plumbing contractor providing plumbing repair and installation services to San Francisco, Oakland, and surrounding cities in the Bay Area. They emphasize quality workmanship, customer satisfaction, and have over 20 years of plumbing experience.

Armour Safety & Compliance LLC is a one-stop shop safety company providing safety consulting, site safety, safety training, and rescue services. They offer efficient safety programs tailored to company needs.

Artyc is a climate tech company focused on electrifying the cold chain, offering advanced sustainable packaging for temperature-sensitive goods and ensuring efficient logistics for essential products.

Ashmore Construction specializes in commercial and industrial building projects in Southern California. They offer a one-stop shop experience, leading clients through projects with creative and strategic innovations.

Aspen Builders, Inc. is a full-service construction firm licensed in multiple states. They cater to the construction needs of a wide variety of national clients with a focus on consumer-serving facilities, such as movie theaters and cinemas, entertainment venues, retail stores, public works, hospitality and hotels, restaurants, religious buildings and industrial facilities.

Associated Concrete Pumping and Material belting is a pioneer in the placing industry. With over 45 years in the industry, we proudly operate a putz exclusive fleet. Associated is built on a combination of reliable equipment, and the right people to go above and beyond in helping our customers get the job done.

Associated Tank Constructors, Inc. (ATC) has a focused interest on API 650 & AWWA new tank construction, API 653 tank repair and maintenance, and Bolted Tank supply and construction. They provide a total turn-key service on all welded, bolted, and concrete tank structures within and not limited to Thermal Energy Storage, Petroleum, Water (potable and waste), Agricultural, Wine, Beer, and Stainless Steel tank industry.

Associated Traffic Safety is a full-service traffic safety company that rents, installs, uninstalls, manufactures, and places permanent or temporary traffic control devices.

Associates Environmental provides high quality environmental consulting services focusing on helping clients relieve the burden of obtaining environmental permits and writing environmental plans.

Astro Energy Group is a global energy development & services company that creates energy solutions by utilizing financial, legal, and technological expertise tailored to the energy industry. They have experience managing energy conservation and sustainability programs and projects worldwide and proficiency in energy conservation measures, demand aggregation/management, power purchase agreements, and maintenance.

Astro Mechanical Contractors, Inc. is a mechanical and plumbing contractor specializing in design/build, negotiated, and specification contracting for industrial, commercial, institutional, and healthcare projects.

Athena Engineering, Inc. provides building and building systems design, construction, and service to commercial, industrial, and institutional clients. They specialize in complicated environments like hospitals, laboratories, infrastructure, utility, and operational facilities.

Atlas Clean Energy is an experienced consultancy helping companies facilitate green energy projects worldwide. Their specialties include solar, CHP, and microgrid technology. Areas of focus include maquiladoras, the Mexican Energy Market, and California’s proposed NEM 3.0 plan.

Atlas Geotechnical provides foundation engineering for heavy industrial, port, and municipal infrastructure projects worldwide.

Atlas/Pellizzari Electric is an electrical contracting firm based in Redwood City, California. They have been in business for over a century and are considered one of Silicon Valley's most trusted electrical contractors.

Auburn Constructors is a general engineering contractor specializing in the construction of water and wastewater treatment facilities, storm water and fresh water pump stations, water storage facilities, and other water resource/recovery projects. They operate in California and Nevada.

Auerbach Engineering Corporation provides civil engineering, land surveying, and environmental planning services.

Aurora Blue assists developers with utility design and construction, acting as a single point of contact for all utility needs.

Provides building automation and energy management systems to increase energy efficiency and maximize occupant comfort. Offers design-build control solutions.

Automated Controls, Inc. offers complete user-friendly Facilities Automation Solutions, Energy Limiting Systems, and Green Sustainability for HVAC to Closed-circuit Television Systems (CCTV), along with 24hr emergency servicing and troubleshooting of HVAC Controls equipment. Their mission emphasizes customer satisfaction and maintaining quality control in all aspects of their projects.

Full-service provider of low voltage systems, offering design to full automation for homes and commercial spaces.