About Us

Culture & History

Our values are rooted in a long history of ecological sensitivity and technical expertise. We thrive on challenging designs, and have developed a culture focused on providing staff the right tools to do their best work. We promote from within, offer mentorship and continuing education, and utilize the most advanced technologies – guiding practices that allow us to create optimal environments for our teams as well as our projects.

Creating Optimal Environments for Life

1 1969 Mc Ginnis Engineering

McGinnis Engineering

Established in 1969 in Gladstone, Oregon, Dan Pickett and Larry McGinnis form McGinnis Engineering. Offering Mechanical Engineering services, the firm was comprised of only 4 employees.

2 1976

McGinnis Becomes Mc-AN Engineering

Under the new name Mc-AN Engineering, the growing firm relocates to Milwaukie, Oregon.


Mc-An Becomes Interface Engineering

42 employees strong and with the recent addition of electrical engineering services, Mc-An purchases Langton-Mehlig and forms Interface Engineering.

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Specialty Services

Interface expands its services to include lighting design, fire/life safety, building technologies, and commissioning.


Interface Headquarters Relocates to Downtown Portland

After several years in Milwaukie, Interface moves its headquarters to downtown Portland.


San Francisco Office Opens

Interface San Francisco opens its doors on April 1.


Seattle Office Opens

Interface Seattle opens its doors in October of 2007.


Sustainable Milestones

Interface completes 100 LEED Certified Projects.

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Interface Expands East and West

Interface opens offices in Washington, DC and Honolulu, Hawaii, extending our services and providing new opportunities for our clients East and West.


Net-Zero Energy Certification

Hood River Middle School's Music & Science Building and Sacred Heart Lower and Middle Schools' Stevens Library both achieve Net-Zero Energy Certification.

Chicago And La Timeline

Chicago + Los Angeles Offices Open

Interface expands our presence on the West Coast and in the Midwest, providing clients with even better access to our innovative team members and shared technical expertise.

  • 1969
  • 1976
  • 1980
  • 1995
  • 2002
  • 2006
  • 2007
  • 2012
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  • 2014
  • 2016

Year In Review


We believe both reflection and recognition are important. 2018 brought us an abundance of success and growth, and we are proud to share our fourth annual Year in Review. The booklet highlights and celebrates our achievements, including our unique company culture, awards, and signature projects.

Our History Drives Our Leadership to Consistently Improve