Primemas
PrivateLast Round
Series B
Jan 23, 2026
Total Funding Raised
$78.74M
Company Overview
Primemas operates in AI, Data & Cloud Infrastructure and is based in Santa Clara, California. Its latest recorded funding round was a Series B round in January 2026.
Primemas is a fabless semiconductor company that provides pre-built SoC Hub Chiplets (Hublet) designed to reduce the cost and time needed to develop custom SoCs for markets such as CXL, AI, and data analytics.
Sector
AI, Data & Cloud Infrastructure
Verticals
Semiconductors, Cloud Infrastructure, Computing Hardware
Business Model
B2B
Customer Profile
Hardware Sales
AI Layer
Infrastructure
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Primemas Comparables
Compare Primemas with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Zero ASIC | 75% | |
| Eliyan | 72% | |
| Qualcomm | 71% |
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Primemas Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | Jan 23, 2026 | ||||
| Pre Seed | Sep 27, 2023 |
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Key People
Founding team and executive leadership
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Primemas Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Rainier Partners | Pre Seed |
| Hanwha Asset Management | Series B |
| Timefolio Asset Management | Pre Seed |
| Korea Development Bank | Series B |
| Solasta Ventures | Pre Seed |
Recent news
Latest coverage and updates
- attends_eventAug 24, 2026
Primemas attended event FMS 2026 on Jul 1st '26.
- launchesAug 24, 2026
At FMS 2026, Primemas introduces SLiM, or Switchless Pooled Memory, a 1U system designed to let multiple servers access tens of terabytes of shared DRAM without external CXL switches for AI inference workloads.
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Primemas Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
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Frequently Asked Questions
Common questions about Primemas's valuation, stock price, and market status.
Is Primemas a public or private company?
Primemas is a private company.
What is the current stock price of Primemas?
Primemas is a private company, so its shares have no public market price. Caplight tracks Primemas's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Primemas worth (valuation)?
Valuation information for Primemas is not publicly available.
Can I buy Primemas stock?
Primemas shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Primemas's last funding round?
Primemas's most recent funding round was Series B on January 23, 2026.
Who are the main investors in Primemas?
Key investors in Primemas include Rainier Partners, Hanwha Asset Management, Timefolio Asset Management, Korea Development Bank, Solasta Ventures.
Will Primemas IPO soon?
No public IPO plans have been announced for Primemas.
How can I track Primemas secondary market activity?
Caplight tracks bids, offers, and trades in Primemas's shares on secondary markets.