Deep33 Ventures
Deep33 Ventures emerged from stealth, announcing a $150 million fund specifically designed to finance the “physical foundations” of the next generation of quantum computing. In order to close the gap between innovative research and extensive industrial implementation, the company focuses on energy systems, AI infrastructure, and quantum technology.
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Breaking the “Physical Wall” of Computing
Deep33 Ventures‘ main argument is a calculated break from the software-focused venture capital models that have dominated the market over the past ten years. The company contends that the current global AI “supercycle” is encountering a “physical wall” that is characterized by actual limitations, such as deployment infrastructure, materials, specialized computational capacity, and power availability.
The company is investing in “hard systems” like energy and robotics, which are necessary for a contemporary sovereign state, rather than software layers, according to Managing Partner Lior Prosor. This strategy reflects a rising fear that the rapid growth of artificial intelligence cannot be sustained by incremental software improvements.
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A Transatlantic Allied Infrastructure Corridor
With offices in Tel Aviv, New York, and Los Angeles, Deep33 presents itself as a link between Israeli technological innovation and government and industry demand in the United States. The “allied infrastructure corridor” is how the company refers to this approach.
- Israeli Innovation: Making use of the country’s research-based innovation base, especially in cybersecurity and quantum physics.
- U.S. Scale: Linking these technologies to government initiatives and the world’s biggest market for industrial computing.
- National Security: During a time of increased geopolitical urgency, national security involves making sure that vital technology are included into the infrastructure of allies.
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Leadership: Combining Experience in Venture and Defense
A pair with vast backgrounds in both the American financial scene and the Israeli technology environment are in charge of the fund:
- Lior Prosor (Managing Partner): An experienced investor with experience in energy, technology, and defense who was previously with Hanaco Ventures.
- Michael Broukhim (Managing Partner): Managing Partner Michael Broukhim is an angel investor and entrepreneur from California who has early investments in important infrastructure firms such as SpaceX, Stripe, Groq, and Hut 8.
- Lior Susan (Chairman): Creator of Eclipse Ventures and a strong supporter of deep tech’s “re-industrialization” of the West.
Using a “expert-first” approach, the company hires senior technical leads for its primary verticals. The quantum vertical is led by Col. (Res.) Joab Rosenberg, a physicist and former head of the IDF’s elite Talpiot program, while the AI infrastructure is managed by Maj. (Res.) Yael Barsheshet, a former technical leader in IDF Intelligence. Government relations and grant strategy are overseen by Yarden Golan, a former chief of staff to Israel’s ambassador to the United States.
The Quantum Mandate: Industrializing a New Layer
The core of Deep33’s approach is quantum technology. Instead than considering quantum as a far-off research endeavor, the company views it as a potential industrial capacity and a new computing layer with an impact similar to the emergence of cloud computing.
According to Col. Rosenberg, enormous markets emerge each time a new computing layer is implemented. The objective of Deep33 is to advance quantum technologies from post-research development to extensive commercial and governmental implementation. Hardware developers, energy suppliers, and national security organizations must work closely together to accomplish this.
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Initial Portfolio: Securing the Hard Tech Stack
After making five initial investments, Deep33 has identified three businesses that share its “infrastructure-first” philosophy:
- Quamcore: Creating a superconducting quantum architecture that can scale to million-qubit devices is the goal of Quamcore.
- CyberRidge: A post-quantum defense company that develops encryption systems that transform private information into “optical noise” in order to fend off potential quantum-enabled decoding.
- Particle: An energy and materials science corporation that specializes in particle accelerators.
Two other portfolio businesses are still operating covertly; one is purportedly developing “oil-free” fuel generation, while the other concentrates on optimizing GPU utilization to reduce AI data center operating expenses.
Bridging the “Valley of Death”
The company’s main objective is to assist creators in navigating the “Valley of Death” the challenging process of turning a ground-breaking laboratory idea into a profitable business. Deep33 offers direction on:
- Public procurement and public-private partnerships.
- Adherence to regulations and national implementation.
- The grant approach, especially as the U.S. government expands funding via the CHIPS Act and the National Quantum Initiative.
Arkin Capital Group, family offices, and institutional investors supported the fund’s $100 million initial close. By the end of the first quarter of 2026, Deep33 hopes to have raised the entire $150 million.
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