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3Si invests in breakthrough innovations within early-stage ventures that can disrupt markets. We build our portfolio based on compelling people, transformative ideas, significant intellectual property, deep market understanding, and the opportunity for capital efficiency and leverage. 

Copyright © 2019 3Si. All Rights Reserved. 

Residence Programs

Do you want to get involved with Startup in a meaningful way? Here are a few ways you can help support our community of entrepreneurs.


The 3Si Entrepreneur-in-Residence (EiR) program provides the opportunity for entrepreneurs to spend some time with startups across a variety of industries. The EiR provide business consulting, networking, mentoring and coaching to our to our portfolio companies. Typically, these services will be provided without charge to our incubates


The XIR will work to find, mentor and evaluate startup companies that could benefit from 3Si’s programs. The ideal Executive-in-Residence will have extensive expertise and experience in entrepreneurial management with an emphasis on R&D, product development, fundraising, marketing or general management.

Business Growth Strategist

The Business Growth Strategist In Residence contributes to our success by promoting our consulting services to C-level decision makers in our target market and securing business opportunities for 3Si.