A new deep‑tech investment firm linking Israeli innovation with US national‑infrastructure needs emerged from stealth on Tuesday, announcing the launch of a $150 million fund aimed at solving infrastructure bottlenecks constraining the global AI boom.
Deep33 Ventures, which has already secured a $100 million first close, aims to identify deep tech companies that have “the potential to transform entire industries and guide them from the post-research stage to commercial breakthrough” the fund said in a press release.
With offices in Tel Aviv, New York, and Los Angeles, the firm aims to create what it calls an “allied infrastructure corridor” connecting the two countries’ technological strengths.
The fund is led by Lior Prosor, an entrepreneur and investor with experience across technology, energy, and defense, whose past investments include Via Transportation, DigitalOcean, Lemonade, UVeye, and Carbyne. He is joined by Michael Broukhim, a California‑based serial entrepreneur and angel investor known for early stakes in SpaceX, Stripe, Hut8, and Groq.
Team of experts
Lior Susan, founder of Eclipse Ventures and a prominent force in Silicon Valley’s deep‑tech sector, will serve as chairman. Yarden Golan, formerly chief of staff to Ron Dermer, will guide government relations and grants.
According to the fund, the world’s AI ambitions cannot be realized without rebuilding the physical foundations that support modern computing.
Deep33 was created to address the hard problems that software alone cannot solve, Prosor said.
"Deep33 was built because the AI Supercycle cannot reach its potential without a radical reimagining of our physical foundations," he said. "We are not investing in software layers; we are backing the 'hard' systems - energy, quantum, and robotics - that sustain a modern sovereign state."
According to a press release, the fund aims to guide portfolio companies and help them advance collaborations with government bodies “during a period of peak investment in critical infrastructure,” helping founders navigate government partnerships, regulatory environments, and large‑scale deployment.
The will focus on several verticals including quantum, energy, AI infrastructure, and autonomous robotics.
According to the firm’s quantum vertical, Col. (Res.) Joab Rosenberg, a quantum physicist from the Weizmann Institute and Talpiot commander quantum computing represents the next major leap in global technological capability, noting that every time a new computing layer has emerged, entirely new markets have followed.
"Every time a new computing layer was added, vast markets were born. Quantum computing is the next layer, and its impact will cross almost every significant industry, including the other areas the fund will engage with - Energy, AI Infrastructure, and all other national infrastructures,” he said.
Geopolitical urgency
The fund’s first close was backed by major family offices, institutional investors, deep‑tech founders, and general partners from leading venture funds in both Israel and across the United States. Deep33 has already made five initial investments that reflect its focus on critical US and Israeli infrastructure.
According to the press release, the firm believes the combination of Israeli innovation, US industrial demand, and geopolitical urgency creates a unique opportunity to build category‑defining companies.
"Deep33 occupies a critical and underserved niche at the intersection of Israeli engineering and US national resilience," said Michael Broukhim. "Our platform is designed to help founders cross the hardest chasm: moving from breakthrough invention to large-scale industrial and governmental adoption.”
Deep33 expects to reach its full $150 million close by the end of the first quarter of 2026.