Ryan Erwin is the Sales Manager at SISO Engineering with more than 15 years of experience in sales, business development, project management, and strategic growth. At SISO, Ryan leads business development efforts focused on identifying new opportunities, building relationships with prospective customers, and expanding SISO’s presence across the power generation industry.

Ryan has extensive experience in the energy industry, working with utilities, independent power producers, developers, and other energy stakeholders across the U.S. His background spans conventional and renewable generation, energy storage, data center power and resiliency, and software-based solutions. He also brings a strong understanding of U.S. power markets and experience developing go-to-market strategies, managing key accounts, and working across technical and commercial teams to advance energy projects.     Erwin_Ryan_03.2026_Recru