Contractors in California

Spartan Fabrication Inc. and Spartan Technical serve as full service Engineering, Design & Fabrication Companies. They employ highly skilled engineers, designers, project managers, supervisory personnel and craftsmen in all disciplines across various industries. They are accredited by American Society of Mechanical Engineers (ASME) and has a Certificate of Authorization from “The National Board”.

Specialty Construction, Inc. provides expert services in General, Heavy Civil, and Telecommunications Construction on the Central Coast of California. They focus on delivering quality projects on schedule and under budget.

Spectrum Construction Group, Inc. specializes in fast-track project completion, assuring clients of consistently high standards within record time frames. They focus on effective management, accurate planning, and resource deployment. Their vision is to be the leading construction company in their chosen markets.

Spectrum Fire Protection offers fire protection services for facilities. They install, service, and maintain fire protection systems.

Spectrum Geophysics specializes in the subsurface characterization of industrial, military, and urban settings for environmental and engineering projects.

Provide best-in-class management delivery while acting as an advocate for clients and maximizing value. Focus on construction project management for commercial real estate projects.

Spiess Construction Co., Inc. is a specialized tank and pipeline contractor, and a contributor in the water, sewer and the storm drain construction markets.

Putting safety and customer service first, we are driven to providing quality work on efficient time schedules and budgets. Our areas of focus include the construction of underground utilities, grading, curb and gutter, pervious concrete, demolition, residential construction, commercial construction, erosion control.

Welding contract service provider located in Northern California. Specializes in custom stainless fabrication for the Food and Beverage, Brewing, And High Purity Welding Industry.

Staples Construction Company, Inc. is a licensed California general contracting corporation that specializes in commercial and industrial construction projects, ranging in size from small interior tenant improvements to multi-million dollar concrete tilt-up commercial office buildings and large distribution centers.

State Electric Generator has been in business since 1955, providing customers with quality power products from simple UPS systems to large hospital and military installations. They offer design & installation services, and provide a variety of products.

Station Electric provides complete turnkey construction and maintenance services for substations in brownfield and greenfield environments, specializing in primary electrical, secondary electrical, and civil construction focused on utility electrical infrastructure systems.

Stations San Jose specializes in workstation and cubicle installation, logistics, and related services.

Steady Solutions tackles complex design-build projects for corporations throughout the Western United States—exceeding compliance and client expectations. Our focused, professional team strives to maximize efficiencies throughout the feasibility, design, and build phases of every successful project. Currently licensed in California, Nevada, Arizona, Texas and Idaho, Steady focuses on exterior work—parking improvements such as underground conduit installation, industrial yards upgrades, ADA, and EV Chargers installation— such as interior-work including: retail upgrades, office space conversions, rebranding, move in- move out, and remediation.

Steel Connections specializes in structural and miscellaneous steel fabrication and erection, offering consulting services.

Commercial and Industrial steel design, detailing and plant design. Our main focus is steel detailing of all types of Structural and Miscellaneous Steel, as well as, Conveyors, Chutes, Hoppers, Flumes, Silos and Equipment Support Structures.

Steel Clad, Inc. provides construction services, specializing in architectural wall cladding systems, roofing systems, and structural steel. Steeclad, Inc is a family-owned and operated business that was established by 35 years of hard work, ingenuity, and oilfield experience. Steelclad owns a full service fleet of trucks and equipment which enables us to perform our services without a regular need of subcontractors.

General Engineering Contractor specializing in heavy civil construction.

Steelman Build & Construction, Inc. is a commercial and public works general construction company that specializes in commercial door services. They install, service and repair industrial & commercial doors. They also offer installation and repair of dock levelers, dock seals and dock bumpers.

Steve Manning Construction, Inc. is one of the leading general engineering contractors in Northern California, certified by the U.S. Small Business Association (SBA) as a HUBZone contractor specializing in heavy civil construction, highway, and road building.

Stillwater Sciences specializes in science-based, technical approaches to natural and water resource management. Their approach is targeted and holistic, evaluating environmental issues within a larger watershed context. They seek long-term and practical solutions that are science-based, balancing cost, regulatory compliance, and natural resource management. Stillwater integrates biological and physical sciences to inform effective management solutions, building trust and consensus among stakeholders using the best available science.

Stone Bear Environmental provides non-hazardous waste water processing and pipeline inspection services.