River Venture Partners (now Curiosity Venture Capital)

River Venture Partners is an Amsterdam-based venture capital firm and angel syndicate founded in 2015 by Herman Kienhuis, now operating through the successor brand Curiosity Venture Capital. The firm supports early-stage tech entrepreneurs across the Benelux, Nordic and Baltic regions with capital, strategy, fundraising support and syndicated angel investments, while also acting as an advisory and scouting partner for other venture funds. Investment focus is on B2B software companies applying machine learning, AI and data technologies to create business value -- notably enterprise software, SaaS and data analytics. River targets early, Seed and Series A rounds with individual tickets typically around a sweet spot of approximately EUR 200,000, ranging between EUR 50,000 and EUR 300,000 per company. Across 21 investments, the portfolio includes Fledger (contracting and legal tech), Contentoo (content marketing SaaS), Singa (a karaoke platform) and Calqulate (finance SaaS). The firm's latest disclosed investment was Calqulate's Seed round in January 2021, after which Kienhuis transitioned primary activity into Curiosity Venture Capital, which targets B2B software startups in the fastest-growing tech hubs across Europe. River Venture Partners pioneered an accessible, syndicate-style approach to early-stage B2B software investing in the Benelux and Nordic ecosystems -- markets that were systematically underserved by institutional venture capital during the firm's most active years. The evolution into Curiosity Venture Capital represents a continuation of the same thesis with a broader pan-European mandate, maintaining the firm's focus on talented teams building data-driven enterprise software.