645 Ventures
645 Ventures, established in 2013, is a New York-based venture capital firm focusing on early-stage investments. It specializes in growth capital, seed, and Series A rounds, primarily investing in SaaS and infrastructure software, augmented and virtual reality, fintech, online marketplaces, DTC digitally-native brands, and marketplace technology companies. The firm partners with exceptional founders, aiming to help them scale their companies to the growth stage. Notable portfolio companies include Iterable, Goldbelly, Resident, Eden Health, and FiscalNote. 645 Ventures manages over $200 million in assets, backed by leading institutional investors, and has a portfolio of over 35 active companies across enterprise SaaS, infrastructure software, and consumer technology sectors.
Top Stages
Past deals in Simulation
True Anomaly
Series C in 2025
True Anomaly is a company dedicated to advancing space security and resilience through an integrated approach that combines spacecraft, software, and autonomy. It aims to create a secure, stable, and sustainable space environment for the United States, its allies, and partners. The company designs, builds, and sells innovative solutions that address the complexities of space security. By leveraging advanced spacecraft manufacturing infrastructure and autonomy systems, True Anomaly revolutionizes how space missions are conducted, while also offering training and simulation tools. Its focus on providing comprehensive software solutions positions True Anomaly as a key player in the evolving commercial space market.
True Anomaly
Series B in 2023
True Anomaly is a company dedicated to advancing space security and resilience through an integrated approach that combines spacecraft, software, and autonomy. It aims to create a secure, stable, and sustainable space environment for the United States, its allies, and partners. The company designs, builds, and sells innovative solutions that address the complexities of space security. By leveraging advanced spacecraft manufacturing infrastructure and autonomy systems, True Anomaly revolutionizes how space missions are conducted, while also offering training and simulation tools. Its focus on providing comprehensive software solutions positions True Anomaly as a key player in the evolving commercial space market.
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