Sphere Semi
PrivateLast Round
VC Round
Sep 22, 2025
Total Funding Raised
$15M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Sphere Semi is a semiconductor company that produces AI-designed custom analog chips for industries including defense, satellites, and autonomous systems.
Sector
Frontier & Industrial Tech
Verticals
Semiconductors, Computing Hardware
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Sphere Semi Comparables
Compare Sphere Semi with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Celera Semiconductor | 78% | |
| Tenstorrent | 64% | |
| RFA Electric, Inc. | 59% |
Sphere Semi Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| VC Round | Sep 22, 2025 | ||||
| Seed | Mar 15, 2024 |
Key People
Founding team and executive leadership
Sphere Semi Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Future Ventures | VC Round |
| Construct Capital | VC Round, Seed |
| Village Global | VC Round, Seed |
| Abstract Ventures | VC Round, Seed |
| Generational Partners | VC Round, Seed |
| Sherpa Capital | VC Round |
| Abstract Ventures | VC Round, Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 13, 2026
Monthly visitors increased 46% MoM.
- May 19, 2026
Monthly visitors grew 824% MoM, reaching 2.5K.
Sphere Semi Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about Sphere Semi's valuation, stock price, and market status.
Is Sphere Semi a public or private company?
Sphere Semi is a private company.
What is the current stock price of Sphere Semi?
Sphere Semi is a private company, so its shares have no public market price. Caplight tracks Sphere Semi's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Sphere Semi worth (valuation)?
Valuation information for Sphere Semi is not publicly available.
Can I buy Sphere Semi stock?
Sphere Semi shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Sphere Semi's last funding round?
Sphere Semi's most recent funding round was VC Round on September 22, 2025.
Who are the main investors in Sphere Semi?
Key investors in Sphere Semi include Future Ventures, Construct Capital, Sherpa Capital.
Will Sphere Semi IPO soon?
No public IPO plans have been announced for Sphere Semi.
How can I track Sphere Semi secondary market activity?
Caplight tracks bids, offers, and trades in Sphere Semi's shares on secondary markets.