Deep33 launches with $100 million first close, aiming to shape the infrastructure of AI
The fund has already backed five startups across quantum, energy, and AI infrastructure. Its founders are Lior Prosor, a partner at the Hanaco fund, and Michael Broukhim, an angel investor, who joined forces with a group of former senior figures from IDF technology units and serial entrepreneurs.
A new venture capital fund named Deep33 is raising $150 million to invest in deep tech companies developing critical technologies for the infrastructure of the United States and its allies, with an emphasis on the US-Israel allied infrastructure corridor. The fund has already completed a first close of $100 million for investments in startups in the quantum and AI fields, and is expected to complete the remaining amount during the current quarter. Among the fund’s major investors is Arkin Capital, led by Nir Arkin.
The fund will be led by Lior Prosor, a partner at the Hanaco venture capital fund, and Michael Broukhim, a serial entrepreneur and angel investor based on the U.S. West Coast. Broukhim has invested in major American companies such as Stripe, Hut8, Groq, and SpaceX, among others. The capital the fund is raising is intended for investments in companies developing technologies in quantum computing, artificial intelligence infrastructure (AI Infra), advanced energy, and robotics, based on the understanding that these areas will play key roles in unlocking bottlenecks that are already emerging and are expected to grow significantly over time.
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The Deep33 fund team (top to bottom, L-R): Yarden Golan, Ori Amsalem, Michael Broukhim, Yael Barsheshet, Lior Prosor, Joab Rosenberg.
(Photo: Ohad Kab)
“The decision to establish the fund came after many months of in-depth research to identify the areas where immediate investment will be required in the coming years in order for the West, led by the United States, to win the AI race,” says Prosor, the fund’s managing partner. “Based on the research we conducted, we developed a comprehensive investment thesis on which the fund was built, and partners with expertise in these fields were recruited.”
The fund’s founders explain that they identify “the largest investment cycle ever,” the AI SuperCycle, in which tech giants including Amazon, Microsoft, Apple, and Google have already committed more than $1 trillion to AI investments, of which $315 billion was allocated in 2025 alone. In parallel, the U.S. government has committed to investing vast sums in these technologies through budgets and grants that government ministries are promising for breakthrough developments that could give the United States a competitive advantage in the geopolitical race among global powers over AI.
Additional partners at the fund will lead the subdomains in which it operates within deep tech. The quantum domain will be led by Col. (res.) Joab Rosenberg, a former senior officer in Military Intelligence and a former commander of the Talpiot program. Rosenberg is also a quantum physicist and a graduate of the Weizmann Institute of Science.
The energy domain will be led by Ori Amsalem, formerly a technology investment manager at the Arkin Group and at Ernst & Young.
The AI infrastructure domain will be led by Maj. (res.) Yael Barsheshet, who spent about a decade in a series of command and technology leadership roles within Military Intelligence.
In the field of autonomous robotics, the fund will be advised by Elram Goren, co-founder and former CEO of the startup Fabric, which raised more than $300 million and built an autonomous robotics platform.
Government relations and grants will be handled by Yarden Golan, until recently chief of staff to Ron Dermer during his tenure as Israel’s minister for strategic affairs and ambassador to the United States.
Another addition to the fund is Lior Susan, who will serve as chairman of Deep33. Susan is a founding partner of the American venture capital fund Eclipse Ventures.
The new fund has already made five initial investments, including in two quantum companies, QuamCore and CyberRidge; in Particle, a company developing technology in the energy field; and in two additional companies in the energy and AI infrastructure sectors that have not yet been disclosed and are operating in stealth mode. One has developed technology for producing fuels and chemicals without oil, living cells, or toxic waste, and the other is building critical layers of AI infrastructure that enable companies to extract more computing power, improve performance, and increase GPU utilization while reducing operating costs.
