A fast-growing player in the solar energy industry with residential and commercial clients, Powerhome Solar operates in 10 U.S. states. The company is also a proud supporter of GivePower, a nonprofit that brings solar energy systems to underdeveloped countries. This year, the company donated more than $150,000 to fund solar-powered desalination systems that create clean drinking water.

When Jeanne Foley got married, her mother blew $500 on two ill-fitting tuxedos for Jeanne’s brothers to wear just once, at the ceremony. The Under Armour veteran knew she could do better. In 2016, she launched the Groomsman Suit with childhood bestie and Sloan School of Management grad Diana Ganz. The direct-to-consumer startup sells tuxedo separates for under $200--much less than traditional rentals. But Foley says the real key to the company’s success has been its “amazing service.” Orders ship within 48 hours, and returns and exchanges are free. As a bonus, the Groomsmen Suit will ship new items before they’ve received the originals. The group-ordering service even nudges groomsmen by email to get it together and order their tuxes--it may be the best thing that’s happened to weddings since candy stations. --Jill Krasny