Silentium Defence
PrivateLast Round
Grant
Jul 28, 2025
Total Funding Raised
$10.48M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Silentium Defence operates in Frontier & Industrial Tech and is based in Adelaide. Its latest recorded funding round was a Grant round in July 2025.
Silentium Defence is an aerospace and defense company that develops and deploys passive radar systems for tactical and strategic surveillance across land, sea, air, and space.
Sector
Frontier & Industrial Tech
Verticals
Defense Tech, Space Technology, Sensors
Business Model
B2G
Customer Profile
Government Contracts, Hardware Sales, Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Silentium Defence Comparables
Compare Silentium Defence with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Daronmont Technologies | 84% | |
| Hidden Level | 81% | |
| Hensoldt | 76% |
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Silentium Defence Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Jul 28, 2025 | ||||
| Accelerator | Jul 27, 2022 | ||||
| Corporate Funding | Jul 27, 2021 | ||||
| Grant | Oct 12, 2020 | ||||
| Grant | Jun 18, 2020 | ||||
Grant | Jul 19, 2018 |
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Key People
Founding team and executive leadership
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Silentium Defence Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Catalyst Accelerator | Accelerator |
| South Australian Early Commercialisation Fund | Grant |
| Australian Government Defence Innovation Hub | Grant |
| Australian Space Agency | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 20, 2026
Open roles increased to 108, 3.8x the trailing average.
- May 19, 2026
Matthew Ratnesar appointed Chief Executive Officer, North America.
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Recent news
Latest coverage and updates
- expands_offices_toOct 11, 2026
Silentium Defence expands its international presence across Europe, United States and United Kingdom, establishing a US headquarters in 2026 and launching a dedicated UK and European operation in Jul '26.
- expands_offices_toOct 11, 2026
Silentium Defence establishes a US headquarters earlier in 2026 and launches a dedicated UK and European operation in Jul '26 as it builds its international presence.
- increases_headcount_byOct 11, 2026
Silentium Defence plans to add up to 70 highly skilled jobs across its three Australian facilities over the next 12 months as its passive radar technology expands into international markets.
- expands_offices_toSep 1, 2026
Silentium Defence is establishing its North American headquarters in North Carolina as the state attracts more defense investment on Sep 1st '26.
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Silentium Defence 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.
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Frequently Asked Questions
Common questions about Silentium Defence's valuation, stock price, and market status.
Is Silentium Defence a public or private company?
Silentium Defence is a private company.
What is the current stock price of Silentium Defence?
Silentium Defence is a private company, so its shares have no public market price. Caplight tracks Silentium Defence's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Silentium Defence worth (valuation)?
Valuation information for Silentium Defence is not publicly available.
Can I buy Silentium Defence stock?
Silentium Defence shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Silentium Defence's last funding round?
Silentium Defence's most recent funding round was Grant on July 28, 2025.
Who are the main investors in Silentium Defence?
Key investors in Silentium Defence include Australian Space Agency.
Will Silentium Defence IPO soon?
No public IPO plans have been announced for Silentium Defence.
How can I track Silentium Defence secondary market activity?
Caplight tracks bids, offers, and trades in Silentium Defence's shares on secondary markets.