Jack Altman Joins Benchmark as General Partner, Bringing Alt Capital Team Along
In a significant development within the venture capital landscape, Jack Altman has been appointed as a general partner at Benchmark, a prominent venture capital firm. This move marks a notable transition for Altman, who has been at the helm of his own venture firm, Alt Capital, since 2024.
Alt Capital made headlines with its rapid fundraising achievements, securing a $150 million Fund I in early 2024, followed by an impressive $274 million Fund II in September 2025, raised in just one week. Reflecting on his tenure at Alt Capital, Altman described the past two years as the most rewarding of his life, expressing a deep appreciation for engaging with new ideas and collaborating with a mission-driven team.
Under Altman’s leadership, Alt Capital invested in at least 52 companies, including notable names like Rippling, Antares Nuclear, and CompLabs. The future of Alt Capital’s portfolio remains uncertain, especially since Altman has announced that his team from Alt Capital will be joining him at Benchmark. This integration is particularly noteworthy given Benchmark’s traditional structure as a flat firm primarily composed of general partners, without multiple layers of investors.
Altman has also committed to maintaining his board positions at the companies he supported during his time at Alt Capital. Despite requests for comments, both Altman and Benchmark have remained silent on the matter.
Beyond his venture capital endeavors, Jack Altman is recognized as the founder of the HR platform Lattice, where he continues to serve as chairman. He is also known as the younger brother of Sam Altman, co-founder of OpenAI.
This strategic move to Benchmark signifies a new chapter in Jack Altman’s career, potentially influencing the firm’s investment strategies and portfolio dynamics.
