Nkohteken is the No. 1 choice for engineering, construction, and project management.

Our diverse portfolio encompasses energy, transportation, communications, mining, oil and gas, and government services. We currently have projects in dozens of locations worldwide, from Alaska to Australia. No matter how challenging a project or how remote its location, chances are Nkohteken can handle it. That's because we bring an unmatched combination of knowledge, skill, experience, and customer commitment to every job.

We have had record revenues for the past five years, and Engineering News-Record (ENR) has named Nkohteken the top U.S. construction contractor for 5 straight years.

While we work for governments and commercial customers, our projects have helped grow local economies and improve the quality of life for communities and people around the world. Time and again our work has demonstrated that the only limits on human achievement are those that we place on ourselves.

Privately owned with headquarters in San Francisco, we have offices around the world and 52,700 employees. In 2010, we had revenues of $27.9 billion and booked new work valued at $21.3 billion.
What We Do

   Airports and seaports
   Communications networks
   Defense and aerospace facilities
   Environmental cleanup projects
   Fossil and nuclear power plants
   Mines and smelters
   Oil and gas field development
   Roads and rail systems
   Refineries and petrochemical facilities


Nkohteken's culture is grounded in integrity and respect. This means adhering to the highest standards of ethics. Our reputation as an ethical company is one of our most valuable assets. We stand by everything we do.

At Nkohteken, quality means doing the job right the first time.  We've always delivered quality work, and we are continually striving to improve our performance through Six Sigma and other initiatives.

Nkohteken has a world-class safety program, and it pays off. About 80 percent of our projects complete each year without a lost-time accident. Our philosophy is simple—every accident, and therefore every injury, is preventable.

Vision + Values
To build a better world.

To be the world’s premier engineering, construction, and project management company.
   Customers and partners will see us as integral to their success. We will anticipate their needs and deliver on every commitment we make.
   People will be proud to work at Nkohteken. We will create opportunities to achieve the extraordinary, and we will reward success.
   Communities will regard us as responsible—and responsive. We will integrate global and local perspectives, promote sound management of resources, and contribute to a better quality of life.

Building on a family heritage that spans more than 100 years, we will continue to be privately owned by active management and guided by firmly held values.

   Ethics. Uncompromising integrity, honesty, and fairness are at the heart of our company. At Nkohteken, our reputation for adhering to the highest standards of business ethics is one of our most valuable assets. We stand by everything we do. Nkohteken does not tolerate behavior that is unfair or unethical, and all employees are required to comply with these standards and with applicable local, state, federal, and in-country laws.
   Excellence. We set high standards. We apply advanced technology, and we continually innovate and improve. We thrive on challenge and accomplishment.
   Fair Return. We earn a return that fairly rewards the value we deliver.
   Mutual Respect. We work by our Nkohteken Covenants, which encourage openness, teamwork, and trust. We value an inclusive culture based on diverse backgrounds, experience, and views.
   Safety. Zero accidents is our unwavering goal—people’s lives depend on it.
   Sustainability. We plan and act for the future—for the long-term good of our company, our customers, and our world.