Contractors in California

Oilfield Environmental & Compliance, Inc. (OEC) is a small, woman owned enterprise providing field and laboratory services to the environmental, regulatory,and petroleum industries since 1997. They offer analytical laboratory support for environmental investigation and monitoring, focused service for petroleum and production, and field services including sampling, field testing, monitoring, and subsurface investigations.

Serving over 1,000 customers in the US and Canada, Old Frontier is a highly recommended and competitive source to be your next freight partner. Old Frontier offers multiple offices in the US to insure we have your loads covered. At Old Frontier we are committed to getting your freight to its locations on time and in perfect condition.

Olson-Olson Construction, INC builds environments through practical design development and a thoughtful approach to budget savvy construction.

Omega Environmental Services, Inc. is a full-service environmental management and hazardous materials consulting firm recognized for its responsiveness and excellent client service. They provide professional services through experts with experience in assessment, remediation, demolition, restoration, and construction.

Omega Land Surveying, Inc. is a private land surveying business located in San Diego, specializing in all aspects of private land surveying with emphasis in boundary surveys, topographic surveys, and construction staking throughout southern California.

Omni Concepts specializes in operable airwall service, new installation, airwall repair, operable wall replacement, and refurbishment. They collaborate with designers, architects, interior designers, and general contractors.

One Water LLC is your partner for the water and wastewater industry, addressing industry challenges with expertise and innovation through its portfolio that consists of Aqua Staffing, OneWater P3 Gurus, and Water Sales Hub.

One Way Trigger LLC is a general contractor and service provider specializing in pavement preservation.

Revolutionize the way owners navigate water-related public-private partnerships (P3s) and create sustainable and innovative water solutions through collaboration between public and private sectors.

Optimize Freight Solutions is a third-party logistics provider. Headquartered in San Diego, our team has decades of experience working with the greatest shippers and carriers in the USA. We continuously strive to create a great customer experience and bring forth innovative transportation solutions to our partners.

Orange Coast Petroleum Equipment (OCPE) is a petroleum and lubrication equipment supplier. They offer top quality products at affordable prices and also stock, service, and install all of the equipment that they sell.

Service & Repair for Semi-Trucks, Box Trucks, Service Vans, Panel Vans, Equipment and Fleet Cars & Trucks in Orange County. Orange County Fleet Services will eliminate the hassle of transporting your vehicles back and forth to a repair facility. We come to you at your location, saving you time & money. Our Mobile Workstations are powered by Richard Petty Garage and operated by service technicians who can service all your vehicles from passenger cars to heavy-duty trucks. Whatever your needs; oil changes, DOT inspections, major engine, and transmission repairs, we do it all....fast and convenient at our shop, on the road or at your location.

Orgel Construction Management is a full spectrum construction management firm providing professional services for all aspects of construction. They offer services from the earliest planning stages through project closeout and occupancy.

Origin Solutions provides owner representation for all aspects of operations and facility management. They guide design, construction, and operation of advanced technology facilities.

Ozone Reality Capture is a reality capture firm that provides survey, scanning, modeling, and UAV (Drone) services. They partner with pioneers in the industry to continually evolve and improve their services.

P&F Metals is a General Engineering and Mechanical Design firm established in 1956, known for performing under critical timelines, sensitive schedules and demanding quality standards. They serve the industrial, agricultural and food processing communities.

PACE Engineering offers comprehensive civil, structural, mechanical, and electrical engineering services, delivering dependable solutions with a personal touch. Their mission is to improve the lives of their people and local communities.

Pacific Building Inc. is a commercial construction company specializing in turn-key construction and ground-up building of storage facilities.

Pacific Coast General Engineering is a Union Heavy Civil construction company located in Pittsburg California. They specialize in Grading, Paving, Underground utilities, and site concrete.

PAG Construction is a licensed general contracting, construction management company, serving Southern California since 1991. They focus on interior tenant improvement, site development, and exterior renovation.

PCS Concrete specializes in commercial, retail, and industrial concrete construction, with a focus on tilt-up structures and cold storage facilities. They offer a range of services including concrete place and finish, laser grading, backhoe excavation, and trucking.

PEMY Consulting, LLC is composed of highly trained experts in various disciplines that support basic and advanced engineering for tanks, piping, vessels, and other equipment systems. They provide services to companies in the chemical, petrochemical, paper, refining and fuels distribution industries.