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OUR mission and vision


The mission of Tamarack Grove (TGE) is to serve our clients throughout North America by providing responsive, safe and trusted solutions with the highest-quality, most dependable engineering services while providing an environment for our team members to grow.



  1. To be the leading North American provider of specialized engineering and design services in Manufacturing, Retail, Residential, Restoration and Facility Maintenance Markets, through focused, steady, sustainable, purposeful growth.

  2. To build trusted relationships with a loyal and consistent client base that matches our culture and seeks to serve and help them succeed.

  3. To serve our clients through integrity, honesty, hard work and accountability in a collaborative, solution-oriented environment focused on providing the right solution.

  4. To demonstrate servant leadership and to always act with integrity.

  5. To foster a professional and fun work environment that encourages new ideas, new innovations and provides opportunity for professional and personal growth.

BRIAN J. SIELAFF, M.S.C.E., P.E., S.E., P. Eng.

Managing Member

Brian started Tamarack Grove Engineering, PLLC in 2007 with twelve years of prior experience in structural engineering. He specializes in building design, design development, investigative and forensic engineering and project management. Brian has extensive experience in building design of steel structures, concrete design, heavy timber and log home construction design, reinforced masonry design, light gauge metal framing design and lateral element design.

As Managing Member at TGE, he oversees all work, production and client relationships. 



University of Idaho Master of Science Civil Engineering, 2000

University of Idaho Bachelor of Science Civil Engineering, 1996



812 S. La Cassia Dr.

Boise, Idaho 83705


Tel: 208-345-8941

Fax: 208-345-8946


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