Seeing aerospace advancement as a technological imperative, we’re accelerating the industry as the leading source of world-class propulsion systems.

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Launch-Ready Propulsion for every sector of aerospace

Draper, Ursa Major’s new storable liquid engine. 

The Draper engine

Meet Draper, Ursa Major’s newest engine

An Ursa Major propulsion engineer works on a 5,000-pound thrust “Hadley” rocket engine.

Ursa Major Employee Works on Hadley Rocket Engine

More American Satellites in Space: Ursa Major Awarded U.S. Air Force Contract to Develop Flight-Ready Rocket Engine for Launch in 2022

Ursa Major staff and Denver-area journalists gather outside Ursa Major headquarters in Berthoud, CO, to watch a hotfire test of Hadley. From left to right: Ursa Major Chief of Staff Dan Decker, General Counsel Sarah Ramuta, Tim Hurst and Dennis Huspeni of the Denver Gazette, Ursa Major Founder & CEO Joe Laurienti, and  VP of Engineering Bill Murry

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Three. Two. One. Here we go!

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Ursa Major Delivers First-Ever Rocket Engines Qualified for Both Hypersonics and Space Launch Applications  

Ursa Major Senior Propulsion Analysis Engineer Eduardo Rondon recently spoke on a panel at MIT’s New Space Age Conference. 

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Q&A: Senior Propulsion Analysis Engineer Eduardo Rondon 

'Hadley,' the first-ever rocket engine qualified for both space launch and hypersonics applications. 

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More Than 200 Ursa Major Rocket Engines Headed to Phantom Space 

Joe Laurienti is an expert in hypersonics and propulsion technology manufacturing and development. He is the founder and CEO of Ursa Major, the country's only pure-play rocket propulsion company.

Founder & CEO

An Ursa Major 'Hadley' engine during a hot-fire test with two exhaust plumes visible

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America’s Need for Domestically Made Rocket Engines Just Got Existential—and Public

A still of actor Matthew McConaughey from Salesforce's 'New Frontier' ad (credit: Salesforce)

Salesforce 'New Frontier' ad still

Pursuing Space Exploration and Solving Earth-Bound Problems are not Mutually Exclusive; They’re One and the Same

Rocket propulsion company Ursa Major’s Advanced Manufacturing Lab in Youngstown, Ohio, where its EOS laser powder bed fusion 3D printer produces rocket engine components on-demand. Technician Thomas Pomorski watches as work continues on a 3D-printed copper rocket engine component.

Thomas Pomorski 3D printer Youngstown

Ursa Major’s Advanced Manufacturing Lab in Youngstown, Ohio Delivers its First 3D-Printed Rocket Engine Components

A hotfire test of an Ursa Major 'Hadley' rocket engine

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Build or Buy? Five Questions to Consider When You Need a Rocket Propulsion System 

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop a mobile launcher at Launch Pad 39B, Wednesday, Aug. 17, 2022, after being rolled out to the launch pad at NASA’s Kennedy Space Center in Florida. Image credit: NASA/Joel Kowsky

NASA SLS on Launchpad

We Need to Talk About Propulsion

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How I Got into Aerospace: An Ursa Major Series on Career Pivots

Ursa Major’s Hadley engine in a hotfire test on Stratolaunch’s propulsion test stand.

Hadley engine aboard Talon vehicle

Strategies to Help the U.S. Regain Leadership in Hypersonics

Ursa Major is proud to be among Built In’s list of the 2023 Best Places to Work for Colorado. The annual awards  program honors companies of all sizes in large tech markets across the U.S.

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Ursa Major Named to Built-In’s Best Places to Work 

Seeing aerospace advancement as a technological imperative, we're accelerating the industry as the leading source of world-class propulsion systems.

How I Got into Aerospace: An Ursa Major Series on Career Pivots - Part 2

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U.S. National Security Depends on Protecting Innovation Capital and Trusting the Expertise of Those Who Fund It 

Ursa Major CEO Joe Laurienti

Ursa Major Featured on Wildly Popular and Prestigious Business Podcast "How I Built This" with Guy Raz

Ursa Major engines, featuring Hadley vacuum variant

Hadley vacuum variant

Engine Test Roundup for Q1 2023

Hadley engine hotfire test on February 19, 2023

Hadley Hotfire Test

Hadley: Three Variants of a Category-Defining Engine

Ursa Major's Draper Engine

Draper in the News

Ursa Major Queers & Allies ERG

What Pride Means at Ursa Major

Hadley engine acceptance test at on May 9, 2023, at Ursa Major’s headquarters.

Hadley engine test in May 2023

Engine Test Roundup for Q2 2023

Hotfiring of a Hadley engine with a copper chamber printed at Ursa Major's Advanced Manufacturing Lab.