Daimler Trucks North America Tuesday officially opened its nine-story headquarters building on its corporate campus in north Portland, Ore.

The headquarters project took two years to complete, beginning in April 2014 after a $150 million investment by DTNA. The 268,000-square-foot headquarter building will merge DTNA employees currently located in offices separated by the Willamette River. It will also accommodate new positions in Portland that the company anticipates it will need as business grows.

“As a leader in the industry with a reputation for high standards in engineering and sustainable practices, we felt it was important to have our headquarters campus reflect those values,” said Martin Daum, president and CEO of Daimler Trucks North America. “As one of Portland’s largest employers, we will now have a state-of-the-art work environment to inspire the great talent in our organization and to continue contributing to long-term prosperity in Portland.”

DTNA prioritized creating an environmentally conscious plan with the goal of achieving LEED Platinum Certification. LEED Platinum is the most prestigious certification available through the U.S. Green Building Council. DTNA expects to receive certification later this year.

"With the new headquarters building, Daimler achieved what only 1% of office buildings nationwide can claim: the design energy efficiency is sky high with an Energy Star score of 99 out of 100,” said Nicole Isle, chief sustainability strategist of Glumac, a sustainable design engineering firm focused on energy efficiency, water conservation, and improving the indoor occupant health.