The U.S. smart home market is expected to reach 24 million homes by 2020, up from just 4.6 million now, according to Statista. That growth far outpaces the rest of the world, with the second-most connected homes in 2020 coming from Japan, with just 3.3 million. But which companies will drive all that growth? 

Right now, Alphabet's (NASDAQ:GOOG) (NASDAQ:GOOGL) Google, Apple (NASDAQ:AAPL), Samsung (NASDAQOTH:SSNLF), and Amazon (NASDAQ:AMZN) are making big waves in the space and will likely continue to lead for a while. Click on the slideshow below to find out what these tech titans are doing and which one is pulling ahead of the pack.

The U.S. Leads the Smart Home Market, but Which Company Dominates? from The Motley Fool.

Chris Neiger has no position in any stocks mentioned. The Motley Fool owns shares of and recommends Alphabet (A shares), Alphabet (C shares), Amazon.com, and Apple. The Motley Fool recommends Home Depot. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.