Contractors in California

Radius Design provides utility design services, specializing in gas, electric, and telecommunications infrastructure design. They offer consulting and project management services to navigate the complex regulatory environment.

Industrial contractor specializing in Millwright, Sheetmetal, and Piping Trades. Also provides automation services with expertise in Fanuc Robotics and various control systems.

Ramos Environmental Services specializes in hazardous waste transportation, disposal, and environmental services. They assist companies in managing hazardous waste responsibly and efficiently, offering services such as waste management, onsite services, and hazardous waste removal.

Rancho delivers proactive vegetation management, environmental and professional solutions that ensure safety, reliability, and environmental stewardship—protecting communities and powering the future.

Raney Geotechnical, Inc. (RGI) is a full-service geotechnical engineering and construction observation and materials testing firm providing services throughout Northern California. Founded in 1979, it aims to be the go-to consulting firm in its field and is recognized as a certified Small Business Enterprise (SBE).

Develops and manages rangeland conservation projects, including research, assessments, strategic planning, monitoring, grazing management planning, and conservation easement supervision. Also conducts expert investigations of livestock management and infrastructure.

Rapid Diesel Repair provides light to heavy-duty truck repair & fleet services from their truck repair shop in Rancho Cucamonga, CA. They offer dealership-level services and repairs at an affordable price.

Rapid Logistics is a logistics company specializing in various transportation and logistics services, including medical transport solutions, dedicated courier services, and warehousing.

RapidX provides transportation solutions and logistics expertise, focusing on client satisfaction and innovation to accommodate various industries.

Raven American Tanks specializes in designing, constructing, maintaining, and inspecting tanks and liners. They deliver industrial-grade water storage solutions.

Rawlings Electric, Inc. is a California licensed electrical contractor specializing in full-service commercial, industrial, public works, and infrastructure electrical construction applications.

Rayco Exteriors specializes in multi-family and HOA improvements, offering reconstruction, waterproofing, painting, railing, siding, and stucco services.

Reasontek Corporation is specialized in accumulator production, surge control solutions, and oilfield industrial supplies. It focuses on being a reliable source for oilfield equipment and technology both domestically and globally.

Recovered Water Solutions is a water recycling company that provides water recovery plans combining reuse and recycling to improve water security. They serve the wine and beverage industries.

RedHammer Building Services provides building repair, maintenance, and emergency services to commercial and retail clients. They offer carpentry, electrical, plumbing, and other expert trades.

Reed Construction & Development's mission is to provide its clients with the best in construction services, focusing on honesty, reputation, and prioritizing client needs. They aim to provide the best customer service experience with integrity.

Reliable Concepts Corporation operates as a general contractor specializing in transforming commercial spaces through expert general contracting, tenant improvements, and comprehensive building services. They are committed to delivering top-notch results on time and within budget.

Reliable Technical Installations, Inc. specializes in the assembly and disassembly of products, offering services from quoting to installation and punch resolution. They focus on communication and execution, aiming for long-term customer loyalty.

Reliance Building Services specializes in providing construction services focused on large commercial projects, restoration, and asbestos abatement. They emphasize over-communication, adherence to schedules, and minimizing financial losses for building owners.

Reliant LLC offers project management services focused on repairing, maintaining, and advancing the status of its clients' assets. They act as the client's advocate for Homeowner Associations, Commercial Entities, and Single Family Dwellings.

Reliant Testing Engineers, Inc. provides specialized construction engineering and inspection services, supported by a certified laboratory and skilled technicians. Their focus is on delivering high-quality services with a personalized client-focused approach.

Remediation Sciences is an environmental consulting and remediation organization specializing in subsurface soil, soil gas and groundwater investigation and remediation.