Majestic Labs raises $100M to build high-capacity AI servers

Team S · 2025-11-12T16:56:51.000Z

Majestic Labs, led by former Meta and Google silicon executives Ofer Shacham (CEO), Sha Rabii (President), and Masumi Reynders (COO), has raised $100 million, including a $71 million Series A in September led by Bow Wave Capital with Lux Capital among investors. The startup is building patent‑pending server architecture with up to 1,000× the memory of typical enterprise servers, aiming to collapse multiple racks into a single server that cuts power, cooling, and footprint. They develop the full chip system “much like Nvidia,” but focus on memory‑intensive AI workloads where fixed compute‑to‑memory ratios constrain performance, targeting hyperscalers and data‑heavy sectors like finance and pharmaceuticals. Each server may replace up to 10 leading racks. Prototypes of Majestic’s box servers are slated for 2027, with pre‑order talks underway; clients were not disclosed. The company has fewer than 50 employees, split between Tel Aviv and Los Altos, plans to grow both sites and seek additional funding in the coming year, and expects hiring to ramp in 2026. The founders previously stood up Google’s TPU efforts and Meta’s FAST team; Rabii led Google’s Argos video chip used in YouTube data centers, and Shacham’s Chip Genesis tech contributed to Pixel AI accelerators. Their launch coincides with rising capex across Alphabet, Meta, Microsoft, and Amazon, collectively projected to exceed $380 billion this year.

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Majestic Labs raises $100M to build high-capacity AI servers | Newnex