Majestic Labs
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Los Altos, United States · Founded 2024 · $100.0M raised
- Headquarters
- Los Altos, California
- Employees
- 11–50
- Founded
- 2024
- Business Model
- B2B
- Website
- majestic-labs.ai
- Total Funding
- $100.0M
- Last Round
- $90.0M Series ASep 2025
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Majestic Labs is an AI infrastructure company building Prometheus, a memory-first server that consolidates up to 10 racks of compute into a single unit with up to 128TB of shared high-bandwidth memory. Founded by former Google and Meta executives, the company aims to eliminate the AI memory wall, enabling multi-trillion parameter models and massive context windows at a fraction of current power and cost.
Summary
Majestic Labs is an Artificial Intelligence company based in Los Altos, United States, founded in 2024. It has raised $100.0M in total across 2 rounds, most recently a $90.0M Series A round in Sep 2025. Investors include Lux Capital, Bow Wave Capital Management and Upfront Ventures.
Tech & App Stack
1 technology or app tracked
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Funding History
Sep 2025
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Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
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