Orbital ATK is a company focused on aerospace and defense, providing 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 designs, manufactures, and launch 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. SpaceX serves sectors such as government space agencies and commercial satellite operators. It was founded in 2002 and is based in Hawthorne, California.

Exos Aerospace specializes in the development of reusable space launch vehicles within the aerospace industry. The company offers commercial spaceflight services with a focus on providing customers with access to space for microgravity experiments and payload deployment. It primarily serves sectors that require suborbital technology demonstrations and research in biological, pharmaceutical, medical, and space manufacturing fields. It was founded in 2014 and is based in Greenville, Texas.

Relativity Space operates a commercial launch company that focuses on the aerospace industry. The company specializes in providing launch services using reusable rockets and manages additive manufacturing to reduce vehicle complexity and production costs. Relativity Space primarily serves the space infrastructure sector with its launch capabilities. It was founded in 2016 and is based in Long Beach, California.

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.

Interorbital Systems is involved in the development and manufacturing of orbital launch vehicles and satellites, operating within the aerospace industry. The company provides launch services, including suborbital, orbital, and interplanetary missions, as well as satellite kits available as CubeSats and TubeSats, applicable to private, commercial, governmental, academic, and military domains. It was founded in 1996 and is based in Mojave, California.