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Majestic Labs

San Francisco, US · Founded 2023 · 57 employees on LinkedIn · 8 known investors

Find your way into Majestic Labs

2,128 people in our graph share verified history with the Majestic Labs team — schools, employers, funds. One of them is your warm intro.

Ken Chenaultunlockedknows Masumi Reynders · together at Facebook (overlapped)
×6knows the team · via Stanford University
×2knows the team · via University of Michigan
knows the team · via Facebook
knows the team · via Motorola Mobility, a Google Company
knows the team · via NVIDIA

Majestic Labs builds specialized compute systems aimed at solving the "Memory Wall" and the power problem of AI infrastructure, drawing on the team's experience in custom silicon and system architecture. The company develops semiconductor and AI hardware technology.

AI & Machine LearningDeep TechHardwareSemiconductors

Founders & leadership

Majestic Labs was founded in 2023 by Masumi Reynders, Ofer Shacham, Shahriar (Sha) Rabii, Sha Rabii, and Mark Shacham.

MRMasumi Reynders
Masumi ReyndersinCo-Founder and COOCo-founder and COO of Majestic Labs, which develops semiconductor and AI hardware technology focused on memory and power efficiency for AI infrastructure.
OSOfer Shacham
Ofer ShachaminCo-Founder and CEOOfer Shacham holds a PhD in Electrical Engineering from Stanford and has worked on system-on-chip architecture, processor and memory system design, and high-performance low-power hardware and software for imaging and machine learning applications. He previously served five years in an elite unit of the Israeli Navy.
S(Shahriar (Sha) Rabii
Shahriar (Sha) RabiiinCo-Founder and President
SRSha Rabii
Sha RabiiinCo-founder
MS
Mark ShachamCo-founder

Investors · 8

Hetz VenturesTel Aviv · $3.6M – $90M
Lux CapitalNew York · $100K – $100M
Tal VenturesTel Aviv · $3M – $120M
Upfront VenturesLos Angeles · $1M – $10M
Grove VenturesreportedTel Aviv-Yafo · $3.5M – $74M
PIPELINE CAPITAL PARTNERSreportedLas Vegas
QP Venturesreported
UPFRONTreportedSanta Monica

Funding

SEC filings, press & company announcements

$100M disclosed across 1 of 2 rounds · 2025–2026

Source: company announcements and press reports — follow each round's link for the claim.

In the news

Majestic Labs Raises $100M for Memory Pooling AI Server - EE Timeseetimes.com · May 2026Majestic Labs Raises $100M in Fundingfinsmes.com · Nov 2025Former Google, Meta execs form AI startup Majestic Labscnbc.com · Nov 2025AI server co Majestic Labs raises $100m to challenge Nvidia - Globesen.globes.co.il · Nov 2025Led by Ex-Google and Meta Executives, Majestic Labs Emerges From Stealth with $100M To Redefine AI Infrastructure by Tearing Down the “Memory Wall”businesswire.com · Nov 2025Majestic labs news: raises $100mgrovevc.com · Nov 2025

Frequently asked questions

What does Majestic Labs do?
Majestic Labs builds specialized compute systems aimed at solving the "Memory Wall" and the power problem of AI infrastructure, drawing on the team's experience in custom silicon and system architecture. The company develops semiconductor and AI hardware technology.
Who founded Majestic Labs?
Majestic Labs was founded by Masumi Reynders, Ofer Shacham, Shahriar (Sha) Rabii, Sha Rabii, Mark Shacham in 2023.
Who are Majestic Labs's investors?
Majestic Labs's investors include Hetz Ventures, Lux Capital, Tal Ventures, Upfront Ventures, Grove Ventures, PIPELINE CAPITAL PARTNERS, QP Ventures, UPFRONT.
How much funding has Majestic Labs raised?
Majestic Labs has disclosed $100M raised across 1 of its 2 known rounds.
Where is Majestic Labs headquartered?
Majestic Labs is headquartered in San Francisco, US.