Lightstone Ventures is a San Francisco–based venture capital firm founded in 2020 that invests in early-stage technology companies, focusing on enterprise software, cloud infrastructure, AI/ML, and developer-centric platforms. The firm partners with founders at Seed and Series A stages, providing capital alongside strategic, operational, and recruiting support to help scale product-driven businesses. Lightstone emphasizes deep technical expertise and engagement with management teams on go-to-market strategy, team building, and customer adoption. Its investment activities are concentrated in the United States, with a portfolio spanning data platforms, security, automation, and cloud-native technologies. The firm seeks long-term founder relationships and active involvement during early growth phases.