Buys and sells securities using high-frequency-trading algorithms.
Virtu Financial is a high-frequency trading firm founded by Vincent Viola and Douglas Cifu. Virtu programs algorithms that investment banks can use to determine when to buy and sell large quantities of stock at high speed, to ensure that there are always shares available to make a trade. But high-frequency trading got a bad rap in 2014, after the release of Michael Lewis's Flash Boys, which claimed that the practice "rigged the market," and launched an FBI investigation into its legality. It's unclear what high-frequency trading's reputation will be like in the future, but Virtu is trying to position itself as a "market maker" whose services help improve the health of global markets. Note: employee count as of Dec. 31, 2015
Provides domain registration and hosting for websites.
Web hosting company GoDaddy first made a splash more than 10 years ago with racy Super Bowl ads, and founder Bob Parsons says the controversial commercials helped make GoDaddy a household name. (Parsons himself rarely shies away from controversy, famously shooting an elephant.) But it was customer service--done over the phone, and not on the internet--that really helped the company grow. "We felt that when they have problems, people would rather talk to another person," Parsons told Inc. But since GoDaddy launched in 2007, the internet landscape has changed drastically--and the company has more competitors than ever before, such as WordPress and Squarespace. To keep customers from ditching GoDaddy's services in favor of those offered by newer businesses, the company continues to tout its emphasis on customer service. Note: employee count as of Dec. 31, 2015
Provides data analytics to health care organizations.
Inovalon Holdings, founded by Keith Dunleavy, is an analytics company that works primarily with health care organizations to identify gaps in care and assess their financial performance. Inovalon says its platform helps organizations navigate an increasingly digitized industry, while ensuring that they don't lose track of long-term goals. In terms of a track record, Inovalon has an established one--it first turned a profit in 2005. But the U.S. health care system is rapidly changing, and it remains to be seen how Inovalon will adapt to the changes. Note: employee count as of Dec. 31, 2015
Operates a chain of ski resorts, mostly in the Midwest and Northeast.
Peak Resorts founder Timothy Boyd first got into the skiing business in 1982, when he opened a small ski area on a golf course he owned in Wildwood, Missouri. Two years later, he opened his first full-fledged ski resort, in Snow Creek, Missouri, and in 1997, he incorporated Peak Resorts as the holding company for that resort. Peak Resorts now operates 14 ski resorts, mostly in the Midwest and Northeast, such as Hunter Mountain in New York and Alpine Valley in Ohio. The company has yet to expand west of Missouri, where the ski and snowboard business is big. But Peak Resorts says that its past acquisition strategy has proved successful, and that it is confident that it will be able to continue that success as it expands into other U.S. markets. Note: employee count includes number of year-round employees only, as of the end of April 30, 2015.
Administers health savings and flexible savings accounts.
HealthEquity, founded by Stephen Neeleman, aims to help Americans keep a better handle on their Health Savings Accounts, or HSAs. The company created a cloud-based platform through which customers can manage outstanding bills, track their health care spending, and determine if they have been charged erroneously. HealthEquity bills itself as a "first mover," and says it pioneered the employment of technological solutions to address HSA management. But to stay profitable, HealthEquity must ensure that it can keep up with rapidly evolving health care regulations. To maintain company growing, HealthEquity plans to pursue more strategic acquisitions, and to recruit more insurance companies as partners. Note: employee count as of Dec. 31, 2015