When was Sidereus founded?

Sidereus was founded in 2019 and raised its 1st funding round 2 years after it was founded.

Where is Sidereus located?

Sidereus is headquartered in Salerno, Italy.

Who is the current CEO of Sidereus?

Mattia Barbarossa and Luca Principi s of Sidereus. Mattia Barbarossa has also founded 1 company.

How many employees does Sidereus have?

As of Aug 31, 2026, the latest employee count at Sidereus is 11.

Is Sidereus a funded company?

Sidereus is a funded company, having raised a total of $7.15M across 2 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Oct 11, 2021.

When was the latest funding round of Sidereus?

Sidereus' latest funding was a $***** Series A round on Sep 26, 2023, with participation from 2 investors. Its primary sector is Space Tech. In Italy, the Space Tech sector has seen $53.9M in funding in 2026 to date.

Where does Sidereus rank among its competitors?

Sidereus ranks 1st amongst 5 active competitors, of which 4 are funded. It stands 3rd in terms of total funding among its competitors. The most recent competitor to raise funding was Lunar Leap, which secured $12M in Dec, 2025.

Who are the top competitors of Sidereus?

Sidereus' top competitors include Lunar Leap, Radian Aerospace and Escape Dynamics. Among them, Lunar Leap secured the most recent funding round in December, 2025.

Sidereus - 2026 Company Profile, Team, Funding & Competitors

Company Details

Developer of containerized single-stage orbital system for orbital access and testing. The company focuses on accelerating orbital access and hypersonic testing through its deployable system. It designs its technology for validation and responsive missions. The company also provides career opportunities in various engineering and technical fields.

Website: www.sidereus.space/
Social
Email ID: *****@sidereus.space

Key Metrics

Founded Year

2019

Location

Salerno, Italy

Stage

Series A

Total Funding

$7.15M in 2 rounds

Latest Funding Round

Series A, Sep 26, 2023, $*****

Investors

Primo Capital & 2 more

Ranked

1^st among 5 active competitors

Employee Count

11 as on Aug 31, 2026

Similar Companies

Lunar Leap & 3 more

View Sidereus' full profile

Sidereus has raised a total funding of $7.15M over 2 rounds. Its first funding round was on Oct 11, 2021. Its latest funding round was a Series A round on Sep 26, 2023 for $*****. 2 investors participated in its latest round. Sidereus has 3 institutional investors.

Here is the list of recent funding rounds of Sidereus:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Sep 26, 2023	5236568	Series A	6277437	1637208	9711922	5691399
Oct 11, 2021	3814147	Seed	1708421	2104553	Primo Capital	CDP Venture Capital

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View details of Sidereus's funding rounds and investors

The founders of Sidereus are Mattia Barbarossa, Luca Principi and Massimiliano Masciarelli. Mattia Barbarossa and Luca Principi are the CEOs of Sidereus.

Here are the details of Sidereus' key team members:

Mattia Barbarossa: Founder, CEO and CTO of Sidereus.
Luca Principi: Co-Founder & CEO of Sidereus.
Contact Info: 1 email address
Massimiliano Masciarelli: Co-Founder | CFO of Sidereus.

View details of Sidereus's Founder profiles and Board Members

Sidereus' employee count trend

Sidereus has 11 employees as of Aug 26. Here is Sidereus's employee count trend over the years:

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Top competitors of Sidereus include Lunar Leap, Radian Aerospace and Escape Dynamics. Here is the list of Top 10 competitors of Sidereus, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Sidereus 2019, Salerno (Italy), Series A	Developer of containerized single-stage orbital system for orbital access and testing	$7.15M	Primo Capital, CDP Venture Capital & 1 others	37/100
2nd	Lunar Leap United States, Series B	Developer of electromagnetic launch technology for space infrastructure and hypersonic testing	$12M	-	36/100
3rd	Radian Aerospace 2016, Renton (United States), Seed	Developer of fully reusable spacecraft for orbital access and hypersonic flight	$27.5M	Fine Structure Ventures, The Private Shares Fund ... & 20 others	35/100
4th	Escape Dynamics 2010, Broomfield (United States), Seed	Developer of spaceplane	$148K	-	26/100
5th	Vishnu Spaceways 2023, Mumbai (India), Unfunded	Developer of electromagnetic rail technology for launching payloads into space	-	-	13/100