Exos Aerospace specializes in suborbital space access and operates within the aerospace industry. The company provides launch services using reusable rockets and offers options for orbital transfer and space transportation, utilizing Type 5 carbon composite tanks. It serves sectors that require space access for scientific, educational, and exploratory purposes. It was founded in 2014 and is based in Greenville, Texas.

Orbital ATK focuses on aerospace and defense and provides systems and services for space-related applications. The company offers a range of products, including space launch vehicles, satellite components, and missile defense systems. Orbital ATK serves various sectors, including government and commercial space and defense markets. Orbital ATK was formerly known as Orbital ATK. It was founded in 2015 and is based in Dulles, Virginia. Orbital ATK operates as a subsidiary of Northrop Grumman.

SpaceX specializes in the design, manufacture, and launch of rockets and spacecraft in the aerospace industry. Its offerings include launch services for payloads like satellites and cargo, as well as the development of spacecraft for human spaceflight. The company serves sectors such as government space agencies and commercial satellite operators. It was founded in 2002 and is based in Hawthorne, California.

United Launch Alliance specializes in space launch services, providing reliable access to space with a focus on advanced rocket technology. The company offers a range of rockets, including the next-generation Vulcan, as well as the Atlas V, Delta IV, and Delta II, which are designed to deliver payloads into orbit with precision and reliability. United Launch Alliance primarily serves the needs of commercial spaceflight, national defense, and scientific research sectors. It was founded in 2006 and is based in Englewood, Colorado.

Blue Origin specializes in aerospace and spaceflight services, focusing on controlling the cost of access to space. It designs and manufactures reusable rocket engines, launch vehicles, in-space systems, and lunar landers to facilitate space exploration and development. Its primary market includes government and commercial entities in the space exploration and satellite deployment sectors. It was founded in 2000 and is based in Kent, Washington.

Perigee Aerospace is an aerospace technology company that specializes in the development and deployment of space technology solutions. It manufactures orbital launch vehicles. Its vehicle is designed to lift small satellites into low-altitude and high-inclination orbits, which are useful for weather, remote sensing, and imaging satellites. It enables space researchers to send necessary payloads into the orbital atmosphere. The company was founded in 2018 and is based in Daejeon, South Korea.