About Us

Our Mission

To advance industrialized construction innovations and products for a safer, more sustainable, and predictable building environment.

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Our Approach

Our offsite manufacturing approach reduces overall project risk through improved cost and schedule certainty and greater supply chain controls without compromising a project’s overall design.

Full-Service Manufacturer

We are a full-scale design-manufacturer-builder delivering prefabricated building systems; our services include:

  • Design and Engineering Services
  • Manufacturing and Quality Control
  • Transportation and Logistics
  • Erection and Build Services
  • Full Warranty on our Systems

Energy Efficient Manufacturing

More than half of the energy used during prefabrication is from on-site generated photovoltaic electricity at our Woodland Plant.


Over the last six decades, IJʿ has been at the forefront of the changing construction landscape, innovating to ensure we are meeting the market’s needs and adapting to ensure our processes support the success, health, and happiness of all.

IJʿ's History

Founded as Tecon Pacific in 1963, IJʿ 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, IJʿ is owned and operated under an 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.

Finishes Guide

Standard Finishes Guide

We offer a wide range of standard colors, forms and textures or a combination for our integrated envelope systems. The Standard Finishes Guide showcases our standard finishes and cost ranges.