SandGrain
PrivateLast Round
Series A
Dec 9, 2025
Total Funding Raised
$19.32M
Momentum
Top 50%
of companies Caplight tracks
Company Overview
SandGrain is a deep-tech company that develops a post-quantum security platform designed to secure industrial IoT networks through hardware-anchored authentication.
Sector
Cybersecurity
Verticals
IoT Security, Digital Identity, IoT Hardware, Defense Tech
Business Model
B2B
Customer Profile
Hardware Sales, Subscription SaaS
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
SandGrain Comparables
Compare SandGrain with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Crypto Quantique | 83% | |
| Veridify Security | 70% | |
| Xiphera Ltd | 67% |
SandGrain Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Dec 9, 2025 | ||||
| Seed | Mar 8, 2024 | ||||
| Seed | Apr 11, 2023 |
Key People
Founding team and executive leadership
SandGrain Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Brabantse Ontwikkelings Maatschappij | Series A |
| Invest-NL | Series A |
| Innovation Industries | Series A |
| DeepTechXL | Seed, Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jan 8, 2026
Grew 17% QoQ from 18 to 21 employees.
- Dec 23, 2025
Grew 43% QoQ, from 14 to 20 employees.
Recent news
Latest coverage and updates
- is_developingSep 8, 2026
Sandgrain Securities LLC is developing joint reference implementation.
- partners_withSep 8, 2026
Sandgrain Securities LLC partners with Axelera AI.
SandGrain 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 SandGrain's valuation, stock price, and market status.
Is SandGrain a public or private company?
SandGrain is a private company.
What is the current stock price of SandGrain?
SandGrain is a private company with no public stock price. Caplight tracks SandGrain's secondary market activity and provides MarketPrice™ estimates to Caplight users.
How much is SandGrain worth (valuation)?
Valuation information for SandGrain is not publicly available.
Can I buy SandGrain stock?
SandGrain shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was SandGrain's last funding round?
SandGrain's most recent funding round was Series A on December 9, 2025.
Who are the main investors in SandGrain?
Key investors in SandGrain include Innovation Industries.
Will SandGrain IPO soon?
No public IPO plans have been announced for SandGrain.
How can I track SandGrain secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor SandGrain's secondary market activity and sign up for updates.