Jack Altman, co-founder of Lattice and brother of OpenAI's Sam Altman, has made waves in the venture capital world by raising a staggering $275 million for his new early-stage fund, Alt Capital II, in just one week.
This achievement, reported by TechCrunch, marks a significant leap from his first fund of $150 million, which was raised in early 2024, showcasing his growing influence in the startup ecosystem.
Alt Capital’s Rapid Rise in Venture Funding
The speed of this fundraising—completed in a mere seven days—stands in stark contrast to the industry average of over 15 months for venture funds in 2025, highlighting Altman’s strong network and investor confidence.
Alt Capital II aims to focus on leading Series A rounds, particularly for AI startups, a sector experiencing explosive growth and intense investor interest.
A History of Entrepreneurial Success
Altman’s background as the CEO of Lattice, a people management platform that achieved unicorn status, provides him with unique insights into the challenges and needs of early-stage founders.
His transition to full-time investing reflects a personal mission to be the kind of partner he wished for during his entrepreneurial journey—one with experience, connections, and unwavering support.
Impact on the Startup Ecosystem
This new fund is poised to inject significant capital into the tech landscape, potentially accelerating innovation in artificial intelligence and other high-growth areas.
By targeting Series A rounds, Alt Capital II could help bridge the funding gap many startups face after seed stages, offering them the resources to scale effectively.
Looking Ahead: The Future of Alt Capital
Looking to the future, Altman’s ability to raise such a substantial sum so quickly suggests that Alt Capital may become a dominant player in early-stage investing, especially as the demand for AI-driven solutions continues to soar.
Investors and entrepreneurs alike will be watching closely to see which startups receive backing and how these investments shape emerging tech trends.
The success of this fund could also inspire other industry leaders to launch similar initiatives, further intensifying competition in the venture capital space.
For now, Jack Altman’s latest venture underscores a pivotal moment for tech startups, signaling robust investor appetite and a promising horizon for innovation.
Alfred Lee
