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Majestic Labs Ai
Semiconductors · Israel · Founded 2024
Power-efficient AI servers for advanced AI workloads MoreLess
Majestic Labs AI is a developer of next-generation, power-efficient AI servers designed to handle the largest and most advanced AI workloads. Founded in 2023 by former Google and Meta executives Ofer Shacham (CEO), Masumi Reynders (COO), and Sha Rabii (President), the company emerged from stealth in November 2025 with over $100 million in financing. The founding team previously worked together building custom silicon platforms and holds extensive experience in AI silicon and systems development.
The company's core mission is to address the critical imbalance between memory and compute in conventional GPU-centric AI infrastructure, a problem often referred to as the "memory wall". Majestic Labs' flagship product is an AI server architecture that collapses the equivalent of multiple server racks into a single unit. This is achieved through custom accelerator and memory interface chips that disaggregate memory from compute. The system architecture, which includes both hardware and software, enables a single server to support up to 128 TB of high-bandwidth memory, which is nearly 100 times more than leading GPU servers. This breakthrough allows organizations to run massive AI models while significantly reducing power consumption, data center footprint, and overall infrastructure costs.
Majestic Labs targets hyperscale data centers and enterprises in data-intensive industries like finance and pharmaceuticals. By providing vastly more memory, the servers are designed for emerging AI workloads such as large language models with massive context windows, mixture of experts (MoE) models, agentic AI, and large-scale graph analytics. The company's business model is focused on the sale of this advanced hardware, with pilot deployments and pre-orders under discussion. The firm operates out of San Francisco, California, and Tel Aviv, Israel, and is backed by investors including Bow Wave Capital, Lux Capital, Grove Ventures, and others.
Keywords: AI server architecture, power-efficient servers, AI infrastructure, memory wall, data center efficiency, AI workloads, custom silicon, high-bandwidth memory, AI hardware, large language models, agentic AI, mixture of experts, compute infrastructure, disaggregated memory, AI acceleration, semiconductor, system architecture, data center consolidation, deep learning hardware, enterprise AI
Company overview
Majestic Labs Ai company information
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- Status
- Operational
- Founded
- 2024
- Headquarters
- Israel
- Employees
- 55
- Open positions
- 23
- Dealroom signal
- 93.4
Valuation & funding
Majestic Labs Ai funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES AOther financing | Sep 2025 | $100M | $400M | Hetz Ventures · Qp Ventures · Grove Ventures · Bow Wave Capital Management | ↗ |
| SEEDOther financing | May 2024 | $10M | $40M | Lux Capital | ↗ |
Growth signals
Majestic Labs Ai website traffic
Latest recorded traffic for Majestic Labs Ai is 6.5K monthly website visits, up 209.5% over the last three months. Majestic Labs Ai's team grew 66.7% over the past year.
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