Why PrimeCore?

PrimeCore has been determined to serve every customer with the highest level of integrity, honesty, and quality. With over 120 years of combined experience across our company, we pride ourselves on being a one-stop-shop for all aspects of civil construction. We are a WBE business and a member of the AGC Safety Team.

Mission Statement

We are dedicated to providing construction solutions and construction management expertise with safety as the highest priority.

holly willi

Holly Willi

I grew up in a construction family, as my Dad and brother worked in the industry, so to be the owner of PrimeCore really is full circle. For me, it is the relationships that I have been able to create over the years with our team, their families, customers, clients, and vendors, that I am truly thankful for. I feel a sense of pride knowing that when I drive past a building or site that we were a part of, we’ve had an impact on the footprint of the Greater Seattle Area. In my free time, I enjoy watching my daughter play soccer, spending time with my family and friends and playing golf with my husband. I am obsessed with my Peloton bike and like to stay active. I take a lot of pride in being a woman in construction and hope that I can be a mentor to other women looking to enter the industry.

david willi

David Willi

My path in the construction industry started at 14 years old when my Dad and I built a home from the ground up on Lake Tapps. I was extremely focused, in my late teens, on competitive water skiing and competing on the professional freestyle snow skiing tour. When the freestyle circuit went bankrupt, I realized that the ski-bum life was not going to work out and I started working for a local home builder as a subcontractor building custom homes from the ground up. From there, I teamed up with a real estate development firm in the early 80s and for the next decade we bought, designed and built several multi-family properties in the University District area. I eventually moved on to focus specifically on civil construction and have been doing so for nearly three decades. I am proud of what we have built at PrimeCore; I love my work family and hope to see PrimeCore succeed well beyond my years. I feel a sense of pride knowing that PrimeCore has been a part of the changing landscape in Western Washington. Away from work, I am a proud husband, father of four daughters and grandfather to six grandkids. I enjoy spending time with my family, stand-up paddle boarding, golfing and watching my youngest daughter compete in soccer.

mike wells

Mike Wells

Transplant to Washington State, I have enjoyed the beauty and quality of life found in the Greater Seattle area. Seeing the anticipation and excitement over the course of construction is extremely rewarding. I enjoy being part of building facilities for the end users – the power of team work continually amazes me and I look forward to the future.

danny brill

Danny Brill

After attending Seattle Pacific University where I played four years of soccer and majored in Journalism, I spent the better part of my 20s coaching youth soccer around the Greater Seattle Area and working as a carpenter, doing additions and remodels on residential homes. While on holiday in Maui in 2016, I was introduced to Dave and Holly Willi by a mutual friend, and that is how my career with PrimeCore began. When I am away from work, you can find me golfing, enjoying the mountains, spending time with my family and learning how to cook new things. My job as Executive Assistant at PrimeCore allows me to be involved in all aspects of our business and I enjoy the collaborative process and family-like atmosphere that we have cultivated.

“Success is liking yourself, liking what you do and liking how you do it”

– Maya Angelou