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WE BUILD BUSINESSES

From launching our own startups to helping professionals age 50+ start a business on the side, all done in-house and self-funded for 25+ years.

Our Portfolio

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Jonathan headshot

About us

Founded by Jonathan Aspatore in 1999, the mission of SideStarter is to pioneer a new type of business model for starting and growing businesses that more rapidly compounds learnings, diversifies risk, maximizes return on investment, and redefines what is a successful business outcome.