Ursa Major Technologies
Rocket propulsion and solid rocket motor manufacturer for hypersonics, space, and missile defense.
Ursa Major Technologies develops liquid and solid rocket propulsion, including the Arroway 200,000-lbf engine and Lynx solid rocket motor manufacturing process. Founded in 2015 by Joe Laurienti (CEO 2015-Aug 2024), the company was led by Dan Jablonsky from August 2024 until his departure February 19, 2026 to become Sierra Space's CEO; current CEO is Chris Spagnoletti (since Feb 19, 2026, previously President of Liquid Systems since 2022).
Overview
- Headquarters
- Berthoud, CO
- Founded
- 2015
- Employees
- ~270 (2023 figure, stale)
- Total funding
- $497M-$544M (aggregators disagree)
- Valuation
- ~$600M (single-source)
- Stage
- Series E
- Status
- active
- Domains
- X / Twitter
- x.com/ursamajortech
- Website
- ursamajor.com
Founders3
- FounderJoe LaurientiFounder of Ursa Major Technologies, ex-SpaceX/Blue Origin propulsion engineer.
- FounderChris SpagnolettiCEO of Ursa Major Technologies, previously President of Liquid Systems.
- FounderDan JablonskyChief Executive Officer of Sierra Space since March 2, 2026; previously chair and CEO of Ursa Major Technologies and CEO of Maxar Technologies.
Investors0
No linked records yet.
Cap table0
Approximate ownership by holder. Indexed holders link to their records.
| Holder | Instrument | Ownership |
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Contracts2
Programs0
No linked records yet.
Frequently asked
- What does Ursa Major Technologies do?
- Ursa Major Technologies develops liquid and solid rocket propulsion, including the Arroway 200,000-lbf engine and Lynx solid rocket motor manufacturing process. Founded in 2015 by Joe Laurienti (CEO 2015-Aug 2024), the company was led by Dan Jablonsky from August 2024 until his departure February 19, 2026 to become Sierra Space's CEO; current CEO is Chris Spagnoletti (since Feb 19, 2026, previously President of Liquid Systems since 2022).
- Where is Ursa Major Technologies headquartered?
- Ursa Major Technologies is headquartered in Berthoud, CO and was founded in 2015.
- How much funding has Ursa Major Technologies raised?
- Ursa Major Technologies has raised $497M-$544M (aggregators disagree) in disclosed funding, at a most recent valuation of ~$600M (single-source).
- Does Ursa Major Technologies hold government contracts?
- Defense Tech Atlas links Ursa Major Technologies to 2 government contracts.
Sources & citations5
Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.
- 1
Chris Spagnoletti named new CEO of Ursa Major as Jablonsky departs, effective February 19, 2026; Spagnoletti previously President of Liquid Systems since 2022
Defense Daily: Spagnoletti Named New CEO Of Ursa Major As Jablonsky DepartsVerified2026-02-19 - 2
Ursa Major raises $100 million to scale hypersonics, solid rocket motors, and space mobility, closing its Series E, led by Eclipse with Woodline Partners, Principia Growth, XN, and Alsop Louie Partners
Ursa Major: Ursa Major Raises $100 Million to Scale Hypersonics, Solid Rocket Motors and Space MobilityVerified2025-11-18 - 3
Ursa Major raises $85 million in Series C funding, with BlackRock-managed funds, XN, Explorer 1, Alsop Louie, Alpha Edison, Dolby Family Ventures, Space Capital, and Harpoon Ventures
Ursa Major: Ursa Major Raises $85 Million in Series C FundingVerified2021-12-07 - 4
AFRL awards Ursa Major a $28,565,857 firm-fixed-price contract for the Draper engine, covering responsive space, hypersonic, and on-orbit propulsion
Ursa Major: AFRL Awards Ursa Major $28.6M Contract for Responsive Space, Hypersonic and On-Orbit PropulsionVerified2025-05-02 - 5
Ursa Major and the US Navy make a $25 million joint investment in a new solid rocket motor prototype ($12.5M Office of Strategic Capital/Navy matched to $12.5M Ursa Major)
Ursa Major: Ursa Major and US Navy Make $25 Million Joint Investment in New Solid Rocket Motor PrototypeVerified2024-09-18