In a new round of funding, investors like Andreessen Horowitz are giving SpaceX $750 million. This means that the rocket and satellite company is worth $137 billion.
In November, it was said that SpaceX was working on an offering of mostly secondary shares that could raise the company's value by 20%, to up to $150 billion.
In June, Alphabet Inc. and Fidelity Investments gave about $1.68 billion to SpaceX in the form of equity financing.
SpaceX and Horowitz representatives did not immediately respond to media requests for comment. Horowitz was a co-investor in Musk's $44 billion acquisition of Twitter.
NASA has used SpaceX to send a large quantity of cargo and astronauts to the International Space Station.
Starlink, a network that is expanding to include thousands of internet satellites and is owned by SpaceX, is looking for new ways to monetize its services, such as providing high-speed internet on commercial aircraft.
SpaceX is in competition with Blue Origin and Virgin Galactic, two companies that were founded by Jeff Bezos, the founder of Amazon.com, and Richard Branson, who is worth a lot of money. Elon Musk was the person who founded SpaceX.