Sine Engineering
PrivateLast Round
Seed
Mar 25, 2026
Company Overview
Sine Engineering is an aerospace and defense company that develops and manufactures resilient communication, navigation, and coordination systems for unmanned aerial vehicles operating in contested environments.
Sector
Frontier & Industrial Tech
Verticals
Drones & UAVs, Defense Tech, Computing Hardware, Network Equipment
Business Model
B2B
Customer Profile
Hardware Sales, Government Contracts
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Sine Engineering Comparables
Compare Sine Engineering with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| The Fourth Law | 79% | |
| ModalAI | 79% | |
| Theseus | 78% |
Sine Engineering Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed | Mar 25, 2026 |
Key People
Founding team and executive leadership
Sine Engineering Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Defence Builder | Seed |
| U.S.–Ukraine Reconstruction Investment Fund | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Feb 23, 2026
Grew 45% QoQ, from 20 to 29 employees.
- Jan 23, 2026
Grew 50% QoQ, from 16 to 24 employees.
Recent news
Latest coverage and updates
- is_developingJun 12, 2026
Sineeng is developing UAV communication and positioning platform generation on Jun 12th '26.
Sine Engineering 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 Sine Engineering's valuation, stock price, and market status.
Is Sine Engineering a public or private company?
Sine Engineering is a private company.
What is the current stock price of Sine Engineering?
Sine Engineering is a private company with no public stock price. Caplight tracks Sine Engineering's secondary market activity and provides MarketPrice estimates to Caplight users.
How much is Sine Engineering worth (valuation)?
Valuation information for Sine Engineering is not publicly available.
Can I buy Sine Engineering stock?
Sine Engineering 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 Sine Engineering's last funding round?
Sine Engineering's most recent funding round was Seed on March 25, 2026.
Who are the main investors in Sine Engineering?
Key investors in Sine Engineering include U.S.–Ukraine Reconstruction Investment Fund.
Will Sine Engineering IPO soon?
No public IPO plans have been announced for Sine Engineering.
How can I track Sine Engineering secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Sine Engineering's secondary market activity and sign up for updates.