Jonathan Ellis is the Founder and General Partner of Sandalphon Capital. See sector focus and contact routes.
Jonathan Ellis is the Founder and General Partner of Sandalphon Capital, a Chicago-based venture firm he established in 2016 after serving as a Senior Vice President in Macquarie’s Principal Finance Group[2][4]. His investment thesis targets Pre-Seed and Seed stages, focusing primarily on B2B SaaS, Marketplaces, and consumer tech within the Midwest, with specific sector interests in fintech, insurtech, proptech, and enterprise SaaS[3][4]. While specific check sizes are not explicitly detailed in public profiles, Sandalphon participates in early-stage rounds and has backed companies like Kin Insurance in a $3M Seed round and Truss in a $6M round[3][6]. Notable portfolio companies include Kin Insurance, Truss, Stere, and RoofMarketplace, where Ellis has held board or observer roles[5][6]. Ellis distinguishes himself by co-founding midwest.tech/connect, a bi-annual virtual summit connecting Midwest startups with investors to foster regional growth[3][5]. He has been an active angel investor in Chicago startups since 2014 and emphasizes mentoring emerging entrepreneurs through co-chaired support programs[3][4].
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