Michael Twiss

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Founder Michael Twiss currently serves as President/CEO of both Columbia Stone, Inc. and Natural Stone Designs, Inc. Michael oversees the day to day management and future planning of both companies. With over 33 years in the construction industry and 27 of those in the stone industry, he has utilized his drive and dedication into building two successful construction companies.

In addition to his corporate duties, Michael served on the Executive Board of the Marble Institute of America as Treasurer in 2009 and President in 2012.
Michael holds a Bachelors Degree in Construction Management from Oregon State University and is a licensed Civil Engineer in California and Washington. When he is not flying around the globe to go to range reviews, jobsite visits, and meeting with new customers, he enjoys family activities and has a passion for golf.

Linda Twiss

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Co-founder Linda Twiss currently serves as Secretary/Treasurer for Columbia Stone, Inc. and Natural Stone Designs, Inc. Linda has been here from the beginning with her steadfast support. Linda serves as the Human Resources Manager for both Companies and Accounts Receivable for Natural Stone Designs. She also takes care of all banking aspects for Columbia Stone, Inc. and Natural Stone Designs.

Linda enjoys traveling, swimming, reading and spending time with her family.

Bernie Bishoff
Vice President

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In 2000, Bernie joined Columbia Stone, Inc. as a Project Manager. For six years he oversaw projects such as the Seattle Justice Center and Cerritos Towne Center. His diligent efforts and dedication proved to pay off when, in 2005, he accepted the position of Vice President. Bernie’s main responsibilities include overseeing the entire Operations Department, including eight employees, while providing backup for President/CEO Mike Twiss.

His open and mentoring mentality coincides with his favorite part of his job, coaching. He is the one that people go to when they need advice or direction. His words are often a comfort to people and have helped to create a solid, healthy work environment for everyone that works at Columbia Stone.
According to Bernie, what he finds so profound about Columbia Stone is, “the integrity that the company holds and the drive to get the job done.” There’s no doubt that a substantial amount of that has come from his tireless efforts to make Columbia Stone a better company.

Josh Eubank

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Josh estimates jobs for both Columbia Stone and Natural Stone designs. He has worked in the construction industry for 13 years and nine of those in the stone industry. He works with new jobs regarding pricing and pre-construction services prior to turning them over to operations. Before moving to estimating, Josh worked at Columbia Stone as a Field Operations Manager.

Josh has a bachelor’s degree in Construction Management from Oregon State University. When not at work, he can be found at the barn with his daughter and her horse, or doing other activities with his family.

Jeff Nyleen

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A work horse…. Jeff has been with Columbia Stone, Inc. for over twenty years. His experience and diligence have been invaluable. “The integrity and ethics of those working for Columbia Stone have made it a most enjoyable career,” he says. “It is a privilege to associate with high caliber, quality people. I never regret going to work on a Monday morning.” Getting to know others throughout the world who work in the stone industry keeps the job interesting.

A Beaver from the previous century, Jeff majored in Rugby, with a minor in bar hopping. He has many hobbies to fill his time, now that his body can no longer take the punishment of sports. “Live every day like it’s the last,” has become his motto.

Steve Franckiewicz
General Superintendent

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Steve has been a Marble Mason for over 35 years. He joined Columbia Stone, Inc. in 2000, and has worked on some of Columbia Stone’s most prominent projects such as the LA County Museum of Arts in Los Angeles, Cal EPA in Sacramento and the LADD Tower in Portland, Oregon. Throughout his career he has worked on high profile projects, including the Legion of Honor and Union Square, both in San Francisco. According to Steve, the best part of working for Columbia Stone is the people. “I have worked for so many companies over the years, but Columbia Stone is different in that they make me feel that I matter and that I am not just another hired hand. Here my input is truly valued and utilized as part of one team in pursuit of a common goal.”

Kurt Lorenzen
Project Engineer

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Kurt joined Columbia Stone, Inc. in the fall of 2012 as a Project Engineer. His day-to-day duties involve processing and reviewing RFIs, Change Orders, Submittals, and Shop Drawings, and assisting the project managers with current ongoing projects. He is young and new to the construction industry, but views every day as a new learning opportunity.

Kurt graduated from Oregon State University with a Bachelor’s degree in Construction Engineering Management and a minor in Business. He is currently studying to become a LEED Green Associate and eventually wants to earn credentials as a LEED AP in Building Design & Construction.

When Kurt is not in the office he can be found at the gym or, if the weather is nice, on the golf course. He enjoys spending time with his wife Trisha, watching football, and catching up on his favorite television shows.

Brad Aird
Project Manager

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In 2007 Brad graduated from Oregon State University with a bachelor’s degree in Construction Engineering Management and joined Columbia Stone, Inc. as a Project Engineer. Through the years his roles have changed from Project Engineer to Estimator to his current position as Project Manager. As a project manager he oversees all aspects of the projects from award of the contract to completion. His management philosophy is to always be open and honest, and to treat people with respect. According to him, “Ultimately everyone has the same goal; it’s how we conduct our business to achieve that goal that matters.” In 2014 Brad moved to the Bay Area to manage a large corporate headquarters project and is currently working out of our San Carlos, CA office.
One of Brad’s favorite aspects of working at Columbia Stone, Inc. is, “The large diverse group of people that we work with on a daily basis. It is not uncommon for our projects to involve stone vendors in Italy, a GC in San Francisco, an architect in New York, and an owner in Los Angeles. Then you add in the great group of people at Columbia Stone and it’s hard to beat.”

When Brad is not behind a computer screen or out on a jobsite he loves to spend time with his wife and two young boys. He also enjoys anything outdoors whether it’s golfing, hiking, hunting, or wakeboarding.

Jessica Larsuel
Executive Assistant

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As the Executive Assistant to President and CEO Michael Twiss, Jessica is responsible for everything happening behind the scenes. From organizing meetings to planning travel to quarries throughout the US and beyond, she keeps Michael organized and ensures the office runs smoothly.

After graduating from Santa Clara University, Jessica lived in California for another year and then moved back to the Portland area where she grew up. In her free time she tutors high school math, loves to travel, and spends lots of time with her family.