Vector Space Systems is a microsatellite space launch company that connects space startups with launch-enabling platforms and vehicles. It develops its Block Zero rockets and Block One commercial satellite, enabling government and commercial customers to buy payload space and launch microsatellites into space.

PD Aerospace is developing a fully reusable suborbital spaceplane for both unmanned and manned flights. Applications include space tourism, microgravity experiments, high altitude atmospheric observation, and more.

ABL Space Systems builds rockets to launch small satellites. The company is developing its RS1 launch vehicle which is designed to carry up to 1,350 kilograms into low Earth orbit.

Blue Skies Space provides rapidly-delivered, cost-effective space science facilities. The company has developed a new class of satellites to provide high-quality data to the global scientific community, transferring the benefits of new commercial space sector developments to academic research. Twinkle is the first step in the team’s vision to create new opportunities for transformative scientific research. It was founded in 2014 and is based in London, England.

QinetiQ Group (LSE: QQ) is an aerospace, defense, and security technology firm. Specialties include test and evaluation, C4ISR, research and development, aerospace, intelligence services and security, IP, procurement advisory services, maritime, weapons testing, and consultancy. QinetiQ serves as an independent advisor to government organizations, predominantly in the UK and the US, including defense departments, intelligence services, and security agencies.

Blue Origin is an aerospace developer and manufacturer focused on lowering the cost of spaceflight and helping explore the solar system.