Civil & Earthwork

Omega Construction serves the commercial and industrial construction needs of the Southeastern US, emphasizing innovative design and quality construction.

Provides technical and administrative services from concept through completion for infrastructure and land development projects, including comprehensive studies and system design for hydrology, transportation engineering, and significant engineering and construction management services for water and sanitary sewer projects.

Omega GC is a general contractor specializing in construction services from renovations to ground-up developments. They serve the I-35 corridor, spanning from Waco to the Rio Grande Valley.

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.

Omega Waterproofing provides business owners and general contractors with professional, reliable waterproofing services.

MDBrinn (formerly Omni Building Corporation) is a Denver-based full-service general contractor specializing in high-end commercial construction projects for the hospitality and gathering place markets.

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.

Omni Contracting Solutions LLC is a construction company that provides turn-key solutions from raw land to concrete.

Omni Energy Partners designs and executes infrastructure improvement projects with a focus on energy efficiency, functionality, and safety, primarily in Illinois and Missouri.

Omni Engineering Inc. is a British Columbia based firm providing engineering services in the municipal, industrial, and port related sectors. They also specialize in precision metal stampings and manufacture of miniature and micro-miniature components.

Omniflow Systems Inc. specializes in custom wastewater solutions, including treatment plants, wet utilities, and lift stations. They offer precision engineering and high-quality construction for reliable infrastructure solutions.

Expert instrumentation, electrical and controls services for a variety of industries throughout the eastern United States.

OmniVueNDT specializes in Non-Destructive Testing (NDT) and Non-Destructive Engineering (NDE) using GPR, offering concrete scanning and utility locating. They provide services throughout the country and abroad (Canada and Mexico) for public, commercial, Industrial and residential projects.

ONE70 Group is a full-service design-build firm specializing in constructing beautiful and enduring structures. They offer design-build, general contracting, and mechanical services.

One Construction Group Inc. is a New York City based general contracting and construction management firm specializing in commercial, residential, and design + build projects.

One Day Installation & Repairs Inc offers general contractor services for government and other businesses. They specialize in electrical, rough carpentry, HVAC, painting and coatings, elevators, and furnishings. They focus on high quality work and great customer service.

ONE ELECTRIC is an electrical contractor servicing greater LA, offering end-to-end turnkey solutions (design-build) for all building electrical & low voltage systems needs.

O'Neill Electric Inc. is an electrical contractor specializing in commercial, industrial, and residential electrical construction. They are licensed, bonded, and insured in MN and WI.

A design-build construction company in the ICI (Industrial, Commercial, and Institutional) sector, focusing on restaurants and hospitality, office, and retail projects.

One Source Building Services is a commercial construction and facility management service company based in the DFW area. They have been involved in construction services for over 30 years. They specialize in providing a professional yet easy going approach.

One Source Construction LLC is a commercial construction company specializing in new construction, additions, and remodeling for various businesses.

One Source Electric is a full-service electrical contractor committed to providing safe, clean workmanship and electrical installation services. They focus on exceptional communication, professionalism, and reliability.

Commercial landscape, irrigation and grounds maintenance contractor serving the Houston metro area. Positioned as a single source to property owners and developers, general contractors and property managers.

OneTwo Stop Portable Sanitation Inc. provides portable washroom rentals focused on the construction industry, and also serves the industrial, commercial and residential sectors.

Commercial general contractor specializing in tenant projects within the Phoenix and Tucson regions. Provides a wide variety of construction and facilities services.

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

One West Construction is a construction company in Utah specializing in charter school, commercial, and industrial construction.

ON EX Limited is a civil construction company based in Grey County, Ontario, providing excavation services to commercial, infrastructure, agricultural, and residential customers. They focus on collaborative delivery methods and utilizing the latest technology.

Onshore Companies provides civil and commercial construction, oil field services, site work, construction management, logistics and transportation for projects on the Gulf Coast.

ONSITE is a commercial construction contractor transforming California and beyond. They provide various professional construction services for all project types.

OnSite Construction Management, LLC is a construction management company based in Phoenix, AZ. They focus on prefabricated steel and modular buildings, offering preconstruction, architectural design, and construction management services.

Onsite Electric provides electrical services for commercial and industrial clients, specializing in design/build, troubleshoot & repair, and control and automation wiring.

OnStation is the first-ever digital stationing platform purpose-built for road construction and civil engineering teams. The platform brings together location, design, documentation, and team communication into one easy-to-use app.

To offer turn-key solutions for all asset protection needs, including assessment, planning, and installation. They focus on the planning and implementation of turn-key asset protection systems with various products like K-Rated anti-terrorism bollards and safety barriers.

On The Wire Services Pty Ltd provides comprehensive solutions for transmission line construction and maintenance, specializing in difficult access and technically challenging work.

Commercial construction firm based in Houston, specializing in full-service commercial construction.

On-Track Earthworx Ltd. is a commercial earthworks contractor specializing in commercial earthworks in and around the Edmonton area.

On Track Safety Ltd. offers complete traffic control solutions focused on higher standards and safer work zones, building partnerships since 1998. The management team and traffic services employees of On Track Safety have played a key role in the Traffic Management of Ontario Freeways and Highways since 1998.

Onward Construction is dedicated to excellence in commercial construction and tenant improvements. Our team collaborates with you right from the start, offering expert guidance and innovative problem-solving to bring your vision to life.

A nationwide full-service commercial and residential paving contractor providing asphalt, concrete, and paver solutions.

ootbox delivers full-service offices and container builds wherever they are needed. They offer standard models and custom builds for commercial, residential, and industrial needs.

Openshore Pty Ltd is a horizontal directional drilling and civil construction company providing underground service installations using trenchless and conventional construction techniques.

Local 450 has negotiated fair working conditions, wages, and benefits for working men and women while providing the best qualified workforce for our signatory contractors.

Operation Freedom Construction, LLC, is a Federally and NYS certified SDVOSB. They specialize in heavy equipment, hauling, excavation, and general construction services. They also work with landscaping, snow removal, and other seasonal services.

OPCMIA Local 72 is a labor organization representing Cement Masons and Plasterers in Central & Eastern Washington, North Idaho, and Montana. It focuses on promoting skilled craftsmanship, safe working conditions, and family wages and benefits. They offer training and apprenticeship programs.

Opperman Construction Co. provides underground utilities, earthwork, and concrete services. They strive to be fair and just, an employer with employees that want to work for them, a company their customers want to work with – guided by confidence in each other, good family values, hard work, and faith in God.

Optimum Air & Water provides certified testing, adjusting, and balancing services to general contractors, mechanical contractors, and independent business owners. They are a client-focused, professional firm dedicated to delivering exceptional performance, quality, and service.

Pegasus Construction, Inc. is a leading Phoenix commercial general contractor that puts people first. They specialize in commercial construction, design-build, remodels, and tenant improvements.

Optimum Services, Inc. is a leading provider of public and private sector land and construction services including earthwork and waterway creation, infrastructure and utility construction and roadway improvements. OSI is also a national expert in disaster relief services including debris removal, demolition and reconstruction. OSI is a fully comprehensive site contractor providing clients with complete project management services.

Optimum Seismic, Inc. is a leading earthquake retrofit company in California providing high quality structural engineering, metal fabrication and construction services for multifamily and commercial buildings.