About Us

About Us

Who We Are

Our Mission

Clark Pacific is a pioneering team of talented engineers, craftspeople and builders committed to developing, producing and providing to our world-class clients innovative state-of-the-art prefabricated building systems with excellence.

We strive to provide security and career growth for our employees through the continued development of new products and sustainable building concepts, a practice which delivers high value to our clients, keeps our company financially strong, and fosters a vibrant work environment.

Our Values

Safety – Keeping an eye out for each other. (Getting home safely every day.)

Quality – Doing things right. (Even when no one is looking.)

Integrity – Doing the right thing. (No matter what.)

Respect – Treating everyone with dignity. Valuing team members’ contributions.

Innovation – Continuously creating new and better approaches and solutions that positively impact our customers and our company.

Perseverance – Never accepting defeat. Driving ourselves to meet every challenge head on to champion great results for our customers and our company. (“It is not falling down, but staying down that defines failure”)

Our Commitment

Our Commitment

High quality service, unparalleled technical expertise, commitment to excellence, and attention to detail.

These are the qualities that have earned Clark Pacific a valued reputation among owners, developers, architects, engineers and general contractors. Clark Pacific’s team of engineers and prefabrication craft experts are the most highly accomplished in the industry, and possess the technical knowledge and experience to provide true value to our partners at every stage of project development and delivery – from design to construction. Clark Pacific takes pride in building on time and on budget without compromising service or quality.

One Company. One Life. Zero Injury.

Environmental Health and Safety (EHS) is first among Clark Pacific’s  Values. Safety is part of our culture and our company DNA and it informs how we run our business.  We believe attention to safety begins from the earliest design stages through production to project delivery and final turnover.  Our successful performance in this area has been made possible through the leadership and teamwork of all employees.  This success depends on an unyielding commitment to EHS at all levels of the organization.

Clark Pacific believes all incidents are preventable and reaching Zero Injury is achievable.

Accordingly, Clark Pacific:

  • Is committed to providing a safe work environment for all employees;
  • Establishes roles and responsibilities for all levels of the organization;
  • Conducts our business so it meets or exceeds all applicable laws and regulations and minimizes risk to our employees, the public and the environment;
  • Expects each employee to be responsible for their safety and to be held accountable for the safety of the people and equipment around them;
  • Is committed to continuously improving our EHS system and performance;
  • Has established processes for hazard recognition, evaluation and control that involve employee participation;
  • Continually promotes and communicates employee safety on and off the job;
  • Encourages employee reporting of all EHS related hazards, potential hazards, incidents and near-misses.
  • Provides training to enable duties to be carried out in a safe, efficient, and environmentally conscientious manner.

Our Commitment To Green Building

Clark Pacific has established itself as a leader in developing Sustainable Building Systems in California. Our team (including LEED Accredited Professionals on staff) has an understanding of green building concepts and our solution’s contribution to sustainable design.

This is reflected in our product development as well as our contributions to integrated project teams.

Clark Pacific collaborates with design teams in the earliest stages of a project to determine how our approach and solutions can assist the team in developing and meeting its sustainable design goals.

Clark Pacific is a founding member of the PCI Sustainability Committee and will be an early participant in the PCI Sustainable Plants Initiative which takes a close look at the environmental impact of our processes, materials and operations.

Additionally, Clark Pacific is a member of the U.S. Green Building Council and the Regenerative Network.   USGBC founder, David Gottfried had this to say about Clark Pacific:

“Clark Pacific is pioneering new levels of sustainable performance in their cost effective precast building systems, including thermal mass, high R-value insulated panels, local materials, high recycled content and lower waste.” – David Gottfried, Regenerative Network.

Together, we will build a better world.


Corporate Citizenship

At Clark Pacific, we believe in good corporate citizenship. Through the expertise of our employees, in-kind and surplus donations, or cash contributions, Clark Pacific believes in supporting its community.  Clark Pacific also believes that our role as a community investor goes beyond simply writing a check.  Our strategy is to apply our core competencies to contribute toward sustainable, measurable growth and self-sufficiency for the organizations we partner with – growth that will continue long after the money we donate has been spent.

It takes a community to support programs and organizations, and no one person or company has the resources to do it alone. For this reason, we partner with civic leaders, nonprofit organizations, schools, and other public and private entities to work on projects that are strategically focused and that can have a measurable impact. Clark Pacific is very proud of the contributions it has made in our communities and we will continue to foster and provide outlets for community service within our organization.

Design / Manufacture / Build

All In-House Expertise Means Greater Reliability and Great Control

Architects, contractors and developers alike are taking advantage of Clark Pacific’s Design-Manufacture-Build expertise to help make their projects the best they can be.  With over 50 years of proven experience, Clark Pacific offers a complete range of in-house Preconstruction Services to work as part of your team – partnering with designers and contractors from the earliest conceptual stages of the project. Clark Pacific helps define the most efficient panelization scheme, architectural details, finishes and all interfacing connections for both architectural and structural projects.

We pride ourselves on maximizing design value. By combining our knowledge of how the precast concrete product is manufactured  and erected with the best design for that product we can easily, efficiently, and cost effectively construct components so the client can benefit from a project that has the latest finishes, architectural details, constructability, and schedule and cost savings.

Because Clark Pacific does not outsource the key areas of project management, design, production, or construction, we understand our product from “Cradle to Grave”.  We will be with you every step of the way to consistently deliver the best value possible for the design team and project owner.



  • The latest architectural details, finishes and mix designs
  • Current panelization techniques, window interfaces and correct tolerances
  • Precast Concrete Institute (PCI) Certified Plants and Inspectors
  • Embedded Steel Parts Fabricated by one of two Clark Pacific subsidiaries: Pacific Embedded Products (PEP), an LA certified steel fabricator or Clark Metal Works, a West Sacramento manufacturer.
  • Multiple plant and field inspections by in-house engineering and certified quality control and construction staff
  • Early design assistance on critical path items
  • Best methods to economically panelize the building
  • Alternate cladding systems to consider
  • Panel to structure connection details and preliminary loads to structure
  • Incorporation of story drift
  • Miscellaneous prewelded attachment steel can be installed in the structural steel suppliers shop rather than on the job site
  • Early location of blockouts in concrete decks


  • Early coordination will cut weeks to months off the project critical path
  • Project estimates are accurate as a result of Clark Pacific’s initial and updated Budget Pricing
  • Coordination throughout the project with General Contractor, Window Contractor and Steel Subcontractor saves schedule and reduces punch list at completion
  • Pre-approved panelization and connection schemes save time during formal design approval process


  • Over 2500 completed projects
  • Over 50 years under the same management
  • Over $250,000,000 bonding capacity


Founded as Tecon Pacific in 1963, Clark Pacific started in West Sacramento on a four-acre site with 15 employees. In 1966, James Clark joined the then small firm as its general manager.

With the help of many talented and dedicated engineering, plant, and field employees, the company grew rapidly during the pioneering stages of the industry in California. New forming, casting, stripping, finishing, loading, shipping, and erection techniques were being developed throughout the industry, and Tecon Pacific, under Jim Clark’s management, was at the forefront of this development on the West Coast.

Today, Clark Pacific is owned and operated under equal partnership between Jim Clark’s sons, Donald Clark and Robert Clark. Like their father before them, Don and Bob are registered engineers dedicated to producing the best quality building solutions possible and pushing the limits of what prefabricated building systems can bring to today’s construction.

Clark Pacific has become an industry-leading design-build manufacturer and constructor of complete building solutions and a key partner of owners, architects, engineers, and general contractors throughout California. With its industry partners, Clark Pacific continues to help shape the vibrant urban landscape of the West Coast.



Clark Pacific Completes Apple Park


Clark Pacific successfully completes delivery of the prefabricated concrete building systems for Apple Park, including the complete office building and the two-stand alone parking structures.  Apple’s headquarters office  is the largest prefabricated concrete building in the world.


Clark Pacific Opens Adelanto Plant


Clark Pacific tripled its production capacity to meet the growing demand for prefabricated building systems in Southern California by launching its new 110-acre state-of-the-art fabrication facility in the high desert community of Adelanto.


Clark Pacific Launches Clark PARC


Clark Pacific launches Clark PARC, a prefabricated parking product designed to allow owners/developers and their design teams to effectively design and build parking structures with lower first-costs, faster schedules, and greater quality than conventional construction.


Clark Pacific Consolidates NorCal Operations


In 2016, Northern California operations were consolidated at the Woodland, CA facility. At 140 industrialized acres, Clark Pacific’s NorCal Plant is the largest prefabricated concrete building systems facility in North America.



Clark Pacific Celebrates Its 50th Anniversary


Clark Pacific Awarded Apple Park Project


Clark Pacific is awarded the contract to produce over 6 million square feet of prefabricated concrete building systems for Apple Park, including the complete structure for the main office building and the two 3,000 stall stand alone-parking structures.


Clark Pacific Acquires Irwindale Plant


Clark Pacific completed the acquisition of the California assets of Hanson Structural Precast, a division of Hanson Building Products North America. The acquisition included its Irwindale facility, in continuous operation since 1968.  In 2017, Clark Pacific transferred the Irwindale plant to a new state of the art prefabrication facility in Adelanto, CA.


Clark Pacific awarded contract to supply precast concrete for 49ers stadium project

Clark Pacific is awarded a competitively bid contract to furnish precast concrete for the new San Francisco 49ers stadium being built in Santa Clara. The new $1.2 billion, 68,500-seat stadium is being delivered as a design-build project by a joint venture of Turner Construction and Devcon Construction and design work by architect HNTB.Clark Pacific will manufacture and install over 2,000 precast components including treads, risers, and steps for the stadium seating as well as various stadium walls. All precast work will be completed by early 2013. It is projected to open in time for the 2014 NFL season


Clark Pacific Completes San Jose Int’l Airport ConRAC

San Jose International Airport ConRAC Parking

At over 1,800,000 SF San Jose Mineta International Airport’s new consolidated rental car facility was the then-largest prefabricated concrete parking structure ever completed in California.  The project comprised facilities for the rental car companies, an integrated Quick Turnaround area, as well as public parking spaces.


Clark Pacific Opens NorCal Plant

To meet growing market demand for offsite prefabricated parking structures and building systems, Clark Pacific opened a new state-of-the art manufacturing facility in Woodland, CA. The facility is located at the site of a former Spreckels Sugar Mill. After extensive demolition and repurposing, the site opened and began manufacturing prefabricated structural elements in July 2008 for the San Jose International Airport ConRAC.


CLARK PACIFIC Introduces total precast solutions utilizing the precast hybrid moment frame to the California marketplace

Combining its advances in architectural + structural solutions as well as lessons learned through its on-going involvement in the PREcast Seismic Structural Systems (PRESSS) research, Clark Pacific developed a total precast solution (architecturally finished structural elements including spandrels, columns, beams, and precast flooring) featuring the Precast Hybrid Moment Frame as the seismic resistance system. The first project to utilize the solution was the 800 J Street Lofts in Sacramento, CA.


Clark Pacific Introduces “All-In-One” Solutions

Combining the strengths of its architectural expertise and extensive structural experience, Clark Pacific began producing structural elements with integrated architectural features including multi-colored panels and other custom finishes – giving architects the flexibility to build architectural and structural functionality into single elements. New efficiencies in design became possible with this advance. The Solano County Government Center Parking Structure in Fairfield, CA was the first to receive this treatment.


Clark Pacific Introduces Fast Track Modular Design/Build Building System

In 1997, Clark Pacific developed fast track, turn-key, design/build building systems which integrated the building structure and exterior cladding system. It was first used at the Aerojet facility in Rancho Cordova, CA and Adventis pharmaceutical manufacturing facility in Bridgewater, NJ.Load bearing precast wall building systems removed the need for the conventional steel frame or cast-in-place concrete frames. This new system provided one stop shopping at Clark Pacific for Owners and Developers to obtain building shells, thus eliminating customary interface problems. All structural engineering, fabrication, and construction for the integrated precast building shell was provided by Clark Pacific. Customary design, fabrication and construction schedules were slashed by months with the new building system.


CLARK PACIFIC Introduces Preconstruction Service Partnering Process

During the early 1990’s Clark Pacific began partnering with Architects, General Contractors and Owner/Developers during the initial stages of project development to form state of the art, aesthetically pleasing, economical and constructible fast track, design/build precast cladding systems. Partnering early with Clark Pacific saves Owners and Developers money and time through the early coordination and integration of the cladding panel system with the buildings’ structural system. Many Architects, Contractors and Developers began selecting Clark Pacific cladding systems concurrent with their Preliminary Design Process. Clark Pacific Preconstruction Service Process streamlined the connection design and interfaces with the structural frame. Panelization concepts are resolved early, saving all parties time and money, and leaving the conceptual panel system design, connection and preweld designs to Clark Pacific.


Company Changes Name To Clark Pacific

In 1995, the company name was changed to Clark Pacific to more closely reflect the name of its three owners (Jim, Don, and Bob Clark). The Clark Family has provided continuous management and leadership for over 35 years.


Company Forms Miscellaneous Metal Fabrication Subsidiary

In 1988, the company formed a miscellaneous metal fabrication subsidiary, Pacific Embedded Products (PEP). PEP fabricates all the precast concrete panel embedded steel anchors, steel inserts, steel bearing angles and other fabricated metal required for our products. PEP was established to provide critical connection components with stringent inspection and quality.


Company Introduces C-CAPP (Clark Composite Architectural Precast Panel)

* In 1987, the company introduced C-CAPP, which permitted the fabrication of larger thin shell panels, thereby facilitating quicker fabrication and construction with a lower cost per square foot. These panels were more flexible and adept at dealing with evolving earthquake design technology. The panel system was first introduced on the Grand Promenade High-Rise on top of Bunker Hill in Los Angeles.


Company Introduces Multiple Colored Architectural Precast Panels

In 1986, the company introduced its first architectural precast panel with multiple colored mix designs in one panel, allowing Architects to design panels with more than one color. Initially panels had cold joints at color transitions. Later, special casting techniques were developed to pour multiple colored mixes integrally into the panel. This new technique was first introduced in 1986 on the Silicon Valley Financial Center in San Jose, followed by the AST project in Irvine and on the 77th Street LAPD project in 1994.


Company Introduces Natural Stone On Truss Frame Panel System

In 1986, the company introduced its Natural Stone on Truss Frame Panel System on the Studio Plaza Project in Burbank, immediately followed by use in 1987 on the 505 Montgomery Building in San Francisco near the Transamerica Tower. The Natural Stone on Truss Frame System utilized a truss frame mechanically connected to 1.25″ and 2″ thick stone. These panels were very light and suitable for economical high-rise structure designs in zones of high seismic activity.


Company Opens Fontana Plant

In 1984, the company opened an additional plant in Fontana, CA. This plant was located at the site of a former large Kaiser Steel Normalizing Facility, which had been shut down by Kaiser and sold to Tecon Pacific. Don Clark helped open and manage the new plant about a year and a half after he graduated from Stanford University. A few years later, Don brother, Bob Clark, a recent graduate from San Jose State civil engineering school, helped run the Fontana Engineering and Project Management Group. Later, the Irwindale facility was absorbed by the Fontana Plant Operation.


Company Introduces Natural Stone Clad Precast Panels

In the early 1980’s the company began applying Natural Stone Veneer to Architectural Panels. This permitted Architects to mix natural stone and complimentary colored precast concrete mix designs. The company developed a large network of stone suppliers and purchased stone domestically and internationally from quarries throughout the USA, Spain, Germany, Italy, India, Argentina, China and other countries. Granite, travertine, limestone and sandstone veneer were added to precast panels. Clark Pacific’s new panel system was first introduced in 1982 on the 655 Montgomery high-rise project in San Francisco and in 1989 on the Landmark Square project in Long Beach.


Company Lands First Contract For A Precast Prison Opens A North Sacramento Plant

In 1982, the company landed its first precast prison facility contract at the Vacaville State Prison. An additional precast plant was opened across the river from downtown Sacramento to produce modular prison cells.


Company Introduces Glass Fiber Reinforced Panels (GFRC)

In 1981, the company began producing Glass Fiber Reinforced Concrete (GFRC) panel cladding systems. The first panels were sunscreens produced in 1981 for a Sacramento Office Building, followed by major projects in 1983-4 which included the Growers Square Pavilion in Walnut Creek, Chevron Ortho Research Center in Richmond and State Compensation Insurance Fund in Sacramento. The company helped the development of this process on the West Coast and helped to write the first GFRC industry quality control manuals and manufacturing procedures, which are now in use nationwide and promoted by the Precast Concrete Institute (PCI). GFRC panels were one-third the weight of the standard architectural precast panel and permitted structural engineers to design lighter steel frame building structures, resulting in reduced costs on tall structures in zones of high seismic activity.The spray into mold manufacturing process permitted Architects almost unlimited shape possibilities. Ornate and elaborate panel shapes of Victorian style were now possible while still retaining the quick modular construction characteristics of the precast concrete panelized building system. The LAX Control Tower and San Francisco Towers Episcopalian Retirement Home are excellent examples of shape possibilities.


Company Introduces Brick Clad Precast Panel System

In the early 1980’s the company began applying Brick Fascia to Architectural Precast Panels. This provided contractors with a rapid construction alternate to hand set brick. Architects could now design building elevations which combined brick, colored precast, natural stones and even terra cotta. The brick panel system was first introduced in 1980 on the Pacific Lumber Building in San Francisco, again in 1984 at Sutter General Hospital and in 1985 on the Portman Hotel in San Francisco.


Company Introduces Thin Shell Precast Panel

In 1979 the company introduced its first Thin Shell Precast Building Panel which was approximately 2″ thick, 6′ tall and 12′ wide, backed with a steel stud frame. The Thin Shell Precast Panels were one-half the weight of the standard architectural precast panels and permitted structural engineers to design lighter steel frame building structures. The lighter structures resulted in reduced costs on tall structures in zones of high seismic activity. The new panel cladding system was used in 1979 on the Sheraton Hotel Plaza Lareina High-Rise at LAX and on the Warmington Plaza High-Rise in Santa Ana.


Company Opens Irwindale Plant and Mass Produces Modular Apartment Buildings, Modular Classrooms and Modular Prison Cells

In 1973, the company formed a partnership with Forest City Dillon and opened an additional plant in Irwindale, CA. This plant produced and constructed 55 modular precast concrete apartment buildings with over 7000 apartment units, wood and metal formed portable school classrooms and modular prison facilities.


Company Develops Colored Precast Mix Designs, Specialized Forming, Handling and Connection Techniques For the Mass Production and Installation of Precast Panels

During the 1960’s the company developed some of the region’s first pigment colored precast concrete mix-designs. The company experimented with various aggregates and sands to obtain precast concrete panels which closely matched granite, limestone and other natural stone products. The company also developed precast mass production building processes including panelization concepts, casting techniques, panel handling, loading, hoisting and connection processes. Precast panelized building systems replaced the slow, conventional, hand set building process of the day. Precast concrete building panels were approximately 6″ thick, 8′-13′ wide and 30′-40′ long.


Company Founded in West Sacramento

Founded as Tecon Pacific in 1963, Clark Pacific started on a four-acre site in the Pioneer Bluffs area of unincorporated West Sacramento with only fifteen employees.