How it all began.

Koldson Electric was developed after three different company ventures joined forces. TDK Electric a commercial electrical company operating since 2010 and specializing in capital projects for the state of Washington, TECC Services a full scale electrical consulting services business, and Dold Electric a residential and small commercial electrical company made the decision to assemble together for the perfect fit.  

All three owners have been working together for well over a decade and have 50+ years of combined experience in the electrical industry.  As each previous company matured and advanced forward, they saw the value of delivering on any request from a customer and providing a one stop shop for all electrical needs.

With the added bandwidth Koldson Electric aims to use their skills and experience to continue to execute commercial, residential and contracting projects but with an additional focus on innovative ways to deliver green power solutions and programs to save energy and money for their customers.

The founders of Koldson Electric consist of a group of professionals that do not skimp when it comes to hard work, loyalty, and getting the job done right from start to finish.





Thad Olson is a journeyman electrician with over 26 years in the business. In 2010, Thad formed TDK Electric LLC with a focus on specializing in new school construction, running projects for school districts from Seattle to Blaine.  Thad’s relationships with architects, engineers, general contractors, school construction administrators, and other building trades has fostered his understanding of the requirements for the timely and economical completion of complex construction projects.

Thad started TECC Services in 2017 and has had the privilege of being part of multiple VE and CR studies.  Utilizing years of bidding, managing and onsite experience Thad has enjoyed expanding his reach within the electrical industry and providing top level consulting services.

Thad resides in Mount Vernon WA with is wife Tiffany, daughter Toria and son Parker.  In his free time he enjoys fine tuning his cars or hitting the trails with the family German Shepherd Zeus.



Mike Dold is also a Journeyman Electrician with over 20 years of experience in the industry.  During the second half of his career he performed as a foreman on many projects working directly with company owners, completing jobs under budget and within deadlines.  Mike takes great pride in his work and has demonstrated success collaborating with all trades, and developing long lasting partnerships with those he works with.

In 2018 Mike opened Dold Electric LLC focusing on residential and small commercial projects, the business took off quickly and Mike enjoyed learning about new aspects of the electrical world.  After discussion with his current employer and long time friend, it was decided they could be stronger together.  And Dold Electric merged into a larger picture forming Koldson Electric.

Mike lives in Snohomish Washington with his wife Joni and two daughters Piper and Fynlee, ages 4 and 6.  When he’s not working he enjoys playing soccer, fishing, snowboarding or lounging with the family at home.


Keith Leffler is a retired economics professor from the University of WA.  During the course of his career he performed as an economics analyst and expert witness for a number of high profile court cases and has authored countless research articles within this field.  Keith is also a real estate and company investor and he enjoys analyzing the details of these ventures to create profitability and success.

Keith lives in Lake Forest Park with is wife Patty and dog Spikey.  He splits his time between his home in Washington and his vacation home in Puerto Vallarta. Currently Keith has found a passion for energy efficiency, researching and evaluating a number of solutions such as solar power, electric vehicles, and elimination of energy waste.