Elon Musk is working to revolutionize transportation both on Earth, through electric car maker Tesla – and in space, via rocket producer SpaceX. Elon Musk’s rocket company is now valued at nearly $100 billion, currently, his net worth is $182.9 billion. Musk’s rocket company, SpaceX is now valued at nearly $100 billion. Tesla has become the world’s most valuable automaker with a market capitalisation of $342 billion.