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.

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.

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.

Interorbital Systems focuses on the development and manufacturing of orbital launch vehicles and satellites, operating within the aerospace industry. The company's main offerings include orbital launch vehicles and satellites that serve a variety of applications such as private, commercial, governmental, academic, arts, and military uses. It was founded in 1996 and is based in Mojave, California.

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.

Skyroot Aerospace focuses on aerospace technology, specifically in the design and construction of space-launch vehicles. The company offers cost-effective launch services, providing transportation systems from Earth to space. Its services primarily cater to the global small and medium satellite market. The company was founded in 2018 and is based in Hyderabad, India.