Contractors in California

Full service transportation and logistics company.

Alliant Construction Management combines big-company capabilities with small-company responsiveness, overseeing projects from inception to occupation. A principal of the firm assumes primary responsibility for every project.

Allied Cleanrooms specializes in the design, construction, and installation of modular cleanroom systems for various industries. They provide comprehensive cleanroom solutions, adhering to stringent standards like ISO 5 and ISO 7.

Specializes in the design and construction of wastewater reclamation systems for communities and commercial developments.

Ally Building Company provides facility management and building services. They offer solutions for maintenance, janitorial, HVAC, electrical, and plumbing.

Ally Enterprises specializes in projects for Oil and Gas Producers, Pipeline Operators, Petro-chemical Refineries, Water Utilities, Civil Infrastructures, Power Generators, Renewable Energy and other Industrial sectors. They combine technical expertise with a personal touch, delivering excellent results with greater efficiency.

General construction consulting.

Alpha Mechanical LLC provides HVAC, plumbing, and related services to commercial and industrial businesses.

Alpha Petroleum Transport, Inc. II dba Alpha Environmental Engineering & Construction is an environmental services company committed to safety. They specialize in environmental services and logistics.

Alpine Design provides dry utility coordination, site electric design, composite design, civil engineering, site development, water quality, and water resource engineering for commercial, residential, and industrial development. They also offer habitat restoration and environmental monitoring.

Offering OEM quality Delta Customer Experience by Former Delta Separations Customer Support, Engineering and Manufacturing staff. We install, commission, maintain and repair as well as provide IQ/OQ/PQ, staff training and ongoing technical support services for all Delta Separations equipment.

Amber Industrial Services (AIS) provides solutions to industrial lubricant and fuel issues to help customers increase profitability and the reliability of their equipment. They offer a range of services utilizing portable filtration equipment units with experienced operators. AIS is a member of the Amber Resources family.

Amber Industrial Services (AIS) is a division of Dion & Sons that specializes in increasing the reliability and profitability of our customers. They offer critical lubrication and fuel maintenance solutions – from emergency responses to planned maintenance, in a timely and professional manner.

Ambit Construction & Design, Inc. is a Design Build Commercial, Industrial & Residential construction company based out of Los Angeles, California. They focus on delivering quality buildings on time and within budget.

America Pro Design, Inc. is a construction and maintenance company serving Southern California. They offer services such as drywall, stucco, waterproofing, patio & decks, concrete, asphalt, drainage, tenant improvements, paint, carpentry, demolition, and ADA upgrades.

American Air Balance Company is among the largest test and balance companies in the United States. They provide a complete array of indoor environmental services and are committed to serving their customers with the highest quality testing and balancing services.

American Bobcat & Backhoe Service, Inc. is a Class A General Engineering Contractor, a Woman-Owned Minority Business Enterprise and certified by the State of California as a Small Business. They specialize in underground trenching, footings, foundations, utilities and also do concrete demo, removal and replacement. They rent operated heavy equipment.

American Building Automation Inc. provides HVAC control systems throughout Central and Southern California. They specialize in building automation and energy management controls systems, offering turn-key services from design to installation, service, maintenance, and end-user training.

American Construction Group, Incorporated (ACG) is a union-affiliated Veteran Owned Small Business (VOSB) general engineering construction company that provides cost-effective demolition, heavy civil, concrete construction and related services with high quality and timely results.

American Drilling is a Drilling Contractor for the construction industry. We specialize in: Drilling, CIDH Piles, Dewatering, Shoring, Tiebacks, Soil Nails, Shotcrete, Micropiles, Auger Cast Piles, Sheet Piles, Driven Piles, Deep Soil Mix (DSM), Soil Improvement, Design Build (Assist), Internal Bracing and other construction techniques. American Drilling operates on a wide variety of projects from heavy civil, infrastructure, commercial, and residential. We have the ability to perform work on public and private jobs. The majority of our projects are located in Northern California.

American Heavy Moving & Rigging specializes in relocating homes and buildings and transporting heavy and oversized loads. They have over fifty years of experience in heavy hauling and rigging.

American Hydroseed is a Women Business Enterprise (WBE Supplier Clearinghouse) offering full-service hydroseeding and erosion control in Southern California and Western Arizona. The company focuses on providing timely and professional services on public works, utility projects, and private commercial projects.