Riverside Ventures

Riverside Ventures is a New York City-based early-stage venture capital fund and AngelList syndicate founded in 2017, built by high-level operators, founders and angel investors who took a non-traditional path into the asset class. The firm began as one of the most active syndicates on AngelList and has since evolved into a standing investment platform that sources early-stage and later-stage opportunities for LPs across multiple sectors including enterprise applications, consumer products, software, fintech and climate technology. The firm is led by Founder and General Partner Zachary Ginsburg, who also founded Calm Ventures, alongside General Partner Alex Pattis. Riverside Ventures invests from pre-seed through Series A in US-based technology companies, with checks in the $100K to $500K range per deal. Across its syndicate and fund activity the firm has participated in approximately 233 deals, backing more than 300 founders. Notable portfolio companies include Redwood Materials, the battery materials recycling company, Ripple (payments), Perplexity (AI search), Tofu and Inventex. The team of seven -- five Partners, one Venture Partner and one Principal -- is based across the United States and the United Arab Emirates, giving the platform reach into the Middle East as a source of international LP capital. Riverside Ventures' model -- combining a standing fund with an active AngelList syndicate -- allows LPs to access both a diversified portfolio and individual high-conviction deal allocations. The firm's emphasis on backing operators-turned-founders and its large co-investment network give portfolio companies access to strategic relationships well beyond the initial capital commitment.