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Mark Gies

Director of Business Development

Get to Know Mark

Mark is a mechanical engineer and business manager with deep skills and experience in many technical and business disciplines, which he leverages to foster strong relationships and support customer success. He has 30 years of industry experience with a focus on solar and has unique expertise in technical issues related to the application and deployment of solar on many types of buildings and roofs.

Mark joined S-5! in 2019 and is responsible for the business development of S-5!’s solar product line along with managing a number of distributor, EPC and solar installer accounts. In addition, he provides leadership and support to product management and new product development initiatives.

He is an out-of-the-box thinker who is passionate about renewable energy, especially solar energy, and enjoys bringing new and innovative ideas to the table. He is also passionate about doing his part to evolve the solar industry through involvement in numerous industry-wide committees and events.

Mark has an extraordinary ability to understand complex issues and translate them into laymen’s terms. He especially enjoys troubleshooting and problem solving, from helping customers tackle technical hurdles to developing new products that solve problems in the marketplace. When he is not at work, Mark enjoys outdoor sports including alpine skiing, backcountry skiing, mountain biking and hiking.


  • B.A. and M.E. Mechanical Engineering, Dartmouth College
  • MBA (Summa Cum Laude), Babson College

Industry Associations

  • Vice-Chair of the Mounting Systems Manufacturing Committee at SEIA
  • Member of Structural Engineers Association of California’s (SEAOC) Solar Committee
  • Spoken at Industry Events and Co-authored Articles in Industry Journals
Project Dashboard & Product Downloads


Recent Snow Projects

Recent Solar Projects

Product Downloads

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