Civil & Earthwork

Option Construction Corp. provides general contracting, petroleum construction, facility maintenance, and upgrade services, primarily serving commercial, light industrial, and downstream oil and gas industries. They operate across British Columbia, Alberta, Saskatchewan, Manitoba, and Ontario.

ORBIN Contracting is a commercial general contracting firm specializing in maintenance and renovations in healthcare, secure spaces, and technical areas. They focus on delivering smarter construction from pre-lease to closeout, particularly in high-compliance, regulated industries. They offer pre-lease test fit analysis, manage field conditions, construction logistics, and trade sequencing.

Orchard City Electric is an electrical contractor based in Kelowna, BC, providing residential and commercial electrical services and lighting solutions.

Orchard Earth & Pipe Corp. is a full-service civil and paving contractor centrally located in New York State, providing a diverse range of construction services.

DSC Builds provides general contractor and commercial pool solutions for industrial and commercial clients throughout Florida.

Local ceiling and acoustical tile installer/reseller. Steel stud construction. Fast, efficient, clean.

Oregon Electrical Contractor focusing on HVAC Controls and low voltage systems.

Orion Construction is a design-build contractor specializing in industrial, commercial, and multi-family construction in the Lower Mainland and beyond. They provide design, permitting, preconstruction, and construction management.

Orion Contracting Corp is a leading contracting company in UAE for general contracting and steel buildings. They specialize in residential, commercial, and industrial projects.

Orion Engineers, PLLC is a civil, structural & construction engineering consulting firm based in the Midwest delivering planning, design, and construction management services.

Orlando Construction LLC is a full-site development company serving Central Florida. They specialize in excavating and construction services for commercial and residential projects.

ORLAN provides professional crane services, truss setting, and heavy hauling, with over 20 years of experience in the industry. They focus on delivering building trusses, setting payloads, and transporting oversized loads, emphasizing logistical support and customer service.

Ormaza Construction offers design-build services, specializing in commercial, industrial, and mining projects. They provide complete service from conceptual design to the finished project, focusing on cost-effectiveness and client savings.

Ortman Drilling & Water Services is a full-service water supply contractor, working in all phases of water well/system engineering and installation. They also have an elevator drilling division and an ethanol water resource group.

Osage Electrical Contractors is a Native American owned company specializing in commercial electrical installations. They have an extensive background in the casino/gaming environment as well as entertainment facilities, hotels, and multi-family dwellings.

Osborn Consulting is a collaborative team and trusted partner that delivers practical and creative water and land infrastructure solutions. They specialize in stormwater management, natural resources, open space design, and utilities coordination, with a commitment to sustainable solutions.

Oscar Ladouceur & Son Ltd. is a quality driven mechanical contracting company specializing in the commercial and industrial sectors. They offer in-house turnkey service and specialize in value engineering every job.

OS Construction Services specializes in providing top-tier construction services across various industries. They offer expertise in project planning, design, and execution.

Osman Construction Corporation has a commitment to excellence in construction, emphasizing experience, teamwork, client relationships, and quality. They are involved in general contracting, construction management, and sustainable building practices.

Ossa Terra Ltd. is a locally owned and operated company providing site development, demolitions, contaminated soils-reclamation and remediation, excavations and earthworks, deep utilities, trucking of soils and aggregate materials, and heavy equipment lowboy services.

Ostroff Electric is a construction company based out of 102-15 159th Road Howard Beach, NY

OSTROW ELECTRIC COMPANY was founded in 1939 by John Ostrow. The company has transformed from a single-man shop to one of the leading electrical and telecommunications firms in New England. Now under its third generation of leadership, Ostrow Electric is committed to servicing the electrical industry with the highest installation and safety standards. As a NECA contractor, Ostrow Electric services a wide range of clients in sectors such as Healthcare, Educational, Institutional, Biotech, Commercial, Retail, Technology, and Industrial. They engage with customers from the conceptual budget phase through the bidding or design/build process to value engineering processes. They utilize cutting edge BIM modeling to integrate the design team’s intent into their field crew’s production. Their areas of expertise include security systems, photovoltaic systems, wind turbine generators, electrical infrastructure, fire alarm, clean rooms, and telecommunications.

O.T. Neighoff & Sons, Inc. provides painting, construction, and flooring services, specializing in industrial and commercial applications.

Ott Development, Inc. provides construction services for all types of building projects, including industrial, multi-tenant office buildings, institutional, retail, and religious facilities.

Energy modelling and energy advising for new buildings and renovation projects. We provide EnerGuide ratings and compliance reports, REUP forms, pre-permit checklists and as-built checklists. We also offer heat loss & heat gain calculations for mechanical equipment sizing, and HRV commissioning and balancing. We bring a background of mechanical engineering design to the energy advising role, optimizing mechanical systems to meet step code requirements affordably.

Our Rental Pumps is a WBE certified Equipment Rental Company known for providing an impressive fleet of concrete pumps and telebelts. The company focuses on building trust with major contractors in the New York area and expanding its fleet to include various sizes of Earth Moving Equipment and Screening Plants.

Outdoor Contracting specializes in creating custom-designed outdoor spaces with a focus on engineered drainage systems, high-end colorscaping, and sophisticated landscape lighting. They offer solutions for drainage remediation, retaining wall construction, and comprehensive outdoor transformations.

Outer Beach Marine Inc. is a full-service marine construction company with nearly forty years of experience in the marine construction permitting business in Long Island, NY. They provide help with all aspects of the construction process: site evaluation, construction design, photo presentation, drawings and, ultimately submittal of documents as well as follow up to permit acquisition.

Out of the Park Sports designs and builds indoor and outdoor commercial and residential turf and sporting facilities. They specialize in building top-notch training facilities and outdoor landscapes using premium artificial turf.

Founded in Denver, Colorado in 2011, Outpost Construction Supply is your supply support team for your construction, industrial and job site service needs. We are a family owned business and hold tightly to the idea that the customer comes first and nothing will ever replace a trusting relationship. We bring decades of understanding and experience in the construction industry. Our boots on the ground approach keeps our team in the field, actively listening to people who end the day with their hands dirty, learning what the true needs of the contractor are today. Outpost online leads the way in presenting new and innovative products as well as bringing customers the top brands in construction. We believe that people should come first and pride ourselves in being the most dependable partner to our customers. Our mission is to create a competitive advantage for our customers by delivering products punctually and accurately with service that reflects Biblical values.

Outright Surveying is a Victoria-based Engineering Surveying company established in 2009. They provide precise, efficient surveying solutions.

Overhead Crane Solutions Inc. offers reliable quality servicing of overhead cranes, jib cranes, and associated lifting equipment. Their mission is to remain responsive to customer needs and to assume a key role in the industry by meeting and exceeding industry standards and expectations.

The Overhead Door Co of Boston has been dedicated to supplying superior service and products for over 50 years to the Boston and South Shore areas.

Overhead Door Co. of Vancouver specializes in the service and installation of overhead doors and gates for commercial, strata, and residential properties.

Overley’s was established in 1959 and headquartered in Gilbert, Arizona as one of Arizona’s first hazardous waste transporters. They provide cradle-to-grave waste management and civil construction services. In recent years, Overley’s expanded its foothold further with the expansion of environmental services that focus on remediation, demolition, and reclamation, while maintaining superior waste management and civil construction services.

Ovida Construction Group, Inc. is a general contractor specializing in Amenity Centers, Hardscapes, and Commercial Construction with in house concrete, masonry, and carpentry crews.

OVR Equipment Sales & Rental is always ready to help with any and all of your needs. Whether you need to purchase or rent equipment, train your staff or have your equipment serviced, we are your one stop shop. We have been hosting IICRC Certification courses consistently since 2001 and provide a state of the art training facility and an 1100 sq ft Flood House. For rental we have over 2000 pieces of drying equipment available 24/7/365 because we know from experience that when you need it, you need it now! If you need the power, we have the Generators you need, sizes 20 KW to 125 KW.

Owen Construction is an excavation and site work contractor serving the Willamette Valley since 2005. They focus on delivering high-quality products with unmatched service.

Owen Electric Company, Inc. is a commercial electrical contractor providing a full range of electrical services since 1986.

Owens Construction, Inc. is a residential / site development road construction company incorporated in Idaho. They offer consultation, development, design-build, and construction administration.

A team of professional contractors that furnish and install mechanical insulation to prevent heat loss and gain of HVAC and plumbing systems. They provide comprehensive estimates based on site visits and are focused on energy efficiency of commercial, institutional, and industrial facilities.

The Construction Committee mandate is to support the advancement in understanding construction processes associated with treatment and distribution through sharing of knowledge via different stakeholders and presenting them to the industry. Another mandate is to provide mentoring for new professionals. Stakeholders include Owners, Contractors and Consultants, including office and field staff. Processes include the review of contract delivery methods, communications, construction techniques, value engineering, cost bench marking, market analysis, innovations, project controls, change and risk management, partnering, collaboration, close-out, contract administration and resident inspection, health and safety and quality controls.

Veteran owned firm that specializes in siteworks and civil construction.

Ozanne Construction Company is a multi-disciplinary construction management company doing business throughout the Midwestern and Southern United States.

Ozark Fire Sprinkler (formerly Ozark Fire Protection) is a full service Fire Sprinkler Protection company specializing in saving lives and property by providing fire protection in hospitals, multifamily living complexes, educational facilities, industrial and other commercial and residential properties.

Ozmatic Inc. is a Florida-based engineering inspection and consulting firm specializing in construction oversight, contract administration, and infrastructure management. The company provides expert services in roadway and bridge construction, utility coordination, and claims analysis. It is a DBE and SBE-certified firm committed to quality, compliance, and efficiency in transportation and civil engineering projects.

P3 Built provides superior workmanship and design in various construction divisions. They provide rough carpentry, finish carpentry, specialty carpentry, steel fabrication, and custom wood work.

Full-service commercial HVAC company providing quality and affordable heating and air conditioning services.

P4 Electrical Contractors Ltd, established in 1988 and located in Winnipeg, MB, provides electrical contracting services. They specialize in design/build projects and are well-versed in commercial and industrial projects as well as service work.

P4P Construction is dedicated to being the preeminent provider of the 4 P’s while gaining trust, relationships, and longevity through transparency, quality, and great customer service in residential, commercial and industrial construction.