The Exploration of Space

Boeing

“Throughout the last 50 years, Boeing and its heritage companies have been integral in every major endeavor to escape Earth’s gravity. From the first Mercury capsule, to the current International Space Station, and beyond to the Space Launch System, Boeing has and will take humans and technology farther than they’ve ever been.” - Boeing.com

Source: https://upload.wikimedia.org/wikipedia/commons/f/fe/Atlantis_on_Shuttle_Carrier_Aircraft.jpg

Lockheed Martin

Lockheed Martin “principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.” - Lockheed Martin
This company has made approximately $9.4 billion in 2016 sales.
Their work includes space launch, commercial satellites, government satellites, and strategic missiles lines of business.
Source: https://upload.wikimedia.org/wikipedia/en/thumb/9/95/Lockheed_Martin.svg/1280px-Lockheed_Martin.svg.png

Blue Origin

“Driven by our company motto, Gradatim Ferociter or ‘step by step, ferociously,’ our incremental development process builds upon each success as we develop ground-breaking spaceflight systems. But we don’t just build rockets— we build a culture around methodical innovation and exploration” - blueorigin.com
Source: http://d3t9tbp0ekvj58.cloudfront.net/themes/site_theme/images/updates/news-releases/2016-01-22/launch.jpg

SpaceX

“SpaceX designs, manufactures and launches advanced rockets and spacecraft” - From spacex.com. SpaceX has now sucessfully reused a rocket; a huge milestone in space technology.
Source: http://www.spacex.com/sites/spacex/files/spacex_default.jpg

Virgin Galactic

“Virgin Galactic is a company that aims to offer suborbital flights into space to paying customers in the next few years. It is run by Richard Branson, a British aerospace and music entrepreneur.” - Space.com
Source: https://upload.wikimedia.org/wikipedia/commons/3/3a/Virgin_Galactic_%283769458386%29.jpg

Orbital ATK

Orbital ATK creates and designs flight systems and defense systems along with space systems.
it is an industry-leading provider of commercial satellites used for global communications and high-resolution Earth photography.
It is also a leading provider of small-medium sized aircrafts that perform scientific research, weather monitoring, and national security missions for government customers.
They are pioneers in space logistics including shipments to the International Space Station for NASA and commercial orbital satellite servicing.
The company develops advanced commercial space-launch systems, and are premier provider of different spacecraft components, subsystems, and specialized engineering services.
Source: https://www.orbitalatk.com/about/company-overview/images/Company_Overview.jpg