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

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Successful static fire of Ursa Major’s first prototype 6-inch diameter motor.


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Ursa Major's Lynx: Pioneering the Future of Solid Rocket Motor Manufacturing 

Additive manufacturing engineers Thomas Pomorski and Ty Barzak at Ursa Major's Advanced Manufacturing Lab in Youngstown, Ohio.

Additive manufacturing engineers in Youngstown

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

Copper-chambered Hadley engine hotfire

From Pennies to Propulsion: The Use of Copper in Aerospace

Engine Test Roundup for Q2 2023

Q2 2023 Engine Testing

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

Hadley engine test in May 2023

Engine Test Roundup for Q1 2023

Q1 Test Image Slider

Graph of Ursa Major engine test runtime from 2020 to Q1 2023.

Runtime by Year Q1 2023

Ursa Major engines, featuring Hadley vacuum variant

Hadley vacuum variant

Maggie Mueller

Gwendolyn James

Eddie Rondon

Ursa Major Queers & Allies ERG

What Pride Means at Ursa Major

Ursa Major's Draper Engine

Draper in the News

Hadley engines on the manufacturing floor at Ursa Major’s headquarters.

Hadley engines in manufacturing

Hadley engines in crates at Ursa Major's headquarters.

Hadley engines in crates

Hadley engine hotfire test on February 19, 2023

Hadley Hotfire Test

Hadley: Three Variants of a Category-Defining Engine

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

Roberta “Bobbie” Draper in “The Expanse.” 
Credit: RAFY/SYFY

Bobbie Draper in “The Expanse.” 

Draper, Ursa Major’s new storable liquid engine. 

The Draper engine

Meet Draper, Ursa Major’s newest engine

Ursa Major CEO Joe Laurienti

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

National Security Innovation Base Summit

Pentagon Building

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

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Ryan Yen employee card

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

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

Manufacturing Engineer Kaitlyn Pitugnarongphor, working at Ursa Major’s main production facility in Berthoud, Colorado.

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Propulsion Engineer James McPherson poses next to a Ripley 50,000 lbf rocket engine. 

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Process Engineer Beth Mills with Ursa Major’s 5,000 lbf Hadley rocket engine. 

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Test Engineer Chase Trautman works at the rocket engine test stand at Ursa Major headquarters. 

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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 

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.

Joseph Laurienti

Founder & CEO

Hadley engines at Ursa Major’s facility in Berthoud, CO. The Hadley engine is qualified for both space launch and hypersonic applications.

Hadley engines being manufactured at Ursa Major

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

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Kristi Stahli Quote Card

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

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

Turbo Design Engineer Stephanie Gavell (right) and Build Operations Manager Chaka Smith assemble a ‘Hadley’ rocket engine

Stephanie and Chaka with Hadley

Senior Propulsion Technician Max Drake and Manufacturing Engineer Tom Feenstra work on components for a ‘Hadley’ engine at Ursa Major headquarters.

Max Drake and Tom Feenstra

Senior Welding Technician Clayton Dark and Senior Test Technician Eric Allen remove a ‘Hadley’ rocket engine from the test stand.

Clayton Dark and Eric Allen with Hadley

A ‘Hadley’ rocket engine fires during a test at Ursa Major’s headquarters.

Hadley hotfire test from drone

Eric Miller monitors a rocket engine test at Ursa Major’s headquarters.

Eric Miller monitoring hotfire test

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

Hadley hotfire test HD

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

A “Hadley” rocket engine hotfire test at the Ursa Major headquarters in Berthoud, Colo.

Hadley hotfire test at Ursa Major Headquarters

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 team members Thomas Pomorski (left) and Ty Barzak at the company’s Youngstown, Ohio, advanced manufacturing facility.

Thomas Pomorski and Ty Barzak Youngstown

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

Michael Abeyta from CBS News Colorado films a hotfire test of Hadley while Ursa Major CEO & Founder Joe Laurienti and General Counsel Sarah Ramuta look on.

Filming hotfire test

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Ursa Major Founder & CEO Joe Laurienti discusses our Hadley engine while Michael Abeyta from CBS News Colorado films.

Joe Laurienti discusses Hadley

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!

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

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Senior Propulsion Technician Margo Vriesinga and R&D Operations Manager Alex Alcaraz, hard at work on a Hadley engine.

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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 

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

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

More Than 200 Ursa Major Rocket Engines Headed to Phantom Space 

An Ursa Major 'Hadley' engine being prepared for shipping. 

Hadley Engine

Test Operations Manager Chaka Smith examines a ‘Hadley’ engine

Chaka Smith Hadley Engine

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

Ursa Major's Hadley Engine during a hot fire test in Berthoud Colorado

Ursa Major to Present at Deutsche Bank Global Space Summit on November 9

Ursa Major to Present at Deutsche Bank Global Space Summit on November 9