One of the most stellar companies in the list. Tesla, which is currently worth nearly $655 billion, is 6th on the list of the most valuable company in the U.S. Since June 2019, the stock has surged an electrifying 1400%. Tesla, the pioneer in luxury electric car market, is expected to continue its dominance in the sector, despite other fossil-fuel auto makers jumping into the bandwagon of EVs. Tesla is also in the forefront of another auto industry innovation--autonomous cars.Tesla, which was co-founded by Elon Musk, is the most valuable car company in the world. Tesla's current market value is currently higher than the combined valuations of GM (GM), Ford (F), Toyota (TM), Volkswagen (VLKAF), and Daimler (DDAIF).