He is married to his wife Tanya, with whom he has two daughters and a son. His two daughters and son attend a private school in Bethesda, Maryland. On May 3, 2008, Snyder announced at the Larry King Cardiac Foundation in Washington, D.C., that Tanya was being treated for breast cancer. She underwent surgery at Minnesota's Mayo Clinic on Friday, May 2.
At 17, Snyder experienced his first business failure when he partnered with his father to sell bus-trip packages to Washington Capitals fans to see their hockey team play in Philadelphia. The weather was awful, and father and son then saw all their fliers scattered on the pavement after the Caps lost the game badly that night.
By age 20, he had dropped out of the University of Maryland, College Park and was running his own business, leasing jets to fly college students to spring break in Fort Lauderdale and the Caribbean. Snyder claims to have cleared US$1 million running business out of his parents' bedroom with a friend and couple of telephone lines.
Snyder courted real estate entrepreneur Mortimer Zuckerman, whose US News & World Report was also interested in college market, and who agreed to finance his push to publish Campus USA, a magazine for college students. Zuckerman and Fred Drasner, co-publisher of Zuckerman's New York Daily News, invested nearly $3 million behind Campus USA. That venture could never generate enough paid advertising and was forced to close after three years, but Snyder's charm and persistence captivated Zuckerman.
Despite the collapse of CampusUSA, Snyder was already focused on his next big idea: WallBoards. Barely 25, Snyder realized early on that the era of mass marketing was waning in a segmented world with hundreds of cable TV channels; advertisers were more eager than ever to directly reach "targeted" populations. Drasner, Zuckerman and a growing number of investors saw potential profit in Snyder's next business venture of marketing products of Fortune 500 companies.
In an Initial Public Offering for SNC in September 1996, Daniel Snyder became the youngest ever CEO of a New York Stock Exchange listed company at the age of 32.
He expanded the company aggressively through a string of acquisitions, and in April 2000, Snyder Communications was sold to the French advertising and marketing services group Havas in an all-stock transaction valued at in excess of US$2 billion, the largest transaction in the history of the advertising/market industry. Snyder’s personal share of the proceeds was estimated to be US$300 million.
In May 1999, he purchased the team and their then two-year old stadium for $800 million following the death of the previous owner Jack Kent Cooke. At the time, it was the most expensive transaction in sporting history. The deal was financed largely through borrowed money, including a $340 million borrowed from Société Générale and $155 million debt assumed on the stadium. Annual loan servicing costs are an estimated $50 million. Snyder was very interested in the appearance of the team and the surrounding area. He also renamed the stadium FedEx Field, changing it from Jack Kent Cooke Stadium, the beloved late owner of the franchise.
While Snyder has been owner, the Redskins' annual profit has increased nearly $100 million. As of 2007, the Redskins are the second-highest grossing team in the National Football League behind only the Dallas Cowboys, who are, incidentally, the team's biggest on-field rivals. This is in part due to sponsorship arrangements with Anheuser-Busch, Coca-Cola, and Nextel, but mainly due to a $207 million deal with FedEx to gain naming rights to the Redskins' stadium, now named FedExField. Snyder paid attention to revenue generation by adding more suites and club seats, enlarging capacity to a league-high 84,000-plus, and he sold the club seats that had gone empty under the Cooke family reign. Traffic and parking around the stadium have been improved, and there are now two escalators to the upper levels of the stadium. Ticket prices and parking prices have been raised. The model set by Snyder is currently being imitated by other sports franchises.
Snyder currently owns expansion rights to an Arena Football League team for the Washington, D.C. market, however no timetable have been announced for creating an AFL team there.
In December 2004, the Maryland-National Capital Park and Planning Commission fined Snyder $100 for cutting down more than 130 mature trees near his $10 million Maryland residence above the Chesapeake and Ohio Canal National Historical Park and the Potomac River without first obtaining permission from the Commission, although the National Park Service had signed off on the project. Lenn Harley, a real estate broker who was not involved in Snyder's purchase of the estate but was familiar with the area, estimated that the relatively unobstructed view of the river and its surroundings that resulted from Snyder's clearing could add $500,000 to $1 million to the home's value.
In July 2006, Snyder's Red Zebra Broadcasting launched a trio of sports radio stations in his home market of Washington, D.C. known as Triple X ESPN Radio. He also purchased other radio stations in the mid-Atlantic region, and intends on airing his Washington Redskins on all of his stations.
In February 2007, it was announced that Snyder's RedZone Capital would purchase Johnny Rockets, the 1950s-themed diner chain.
On June 19, 2007, Daniel Snyder purchased Dick Clark Productions for $175 Million.
He is also currently the Chairman of the Board of Ventiv Health, and a board member of McLeod USA.
In October 2007, Snyder confirmed in London that he is "actively looking for the right opportunity" to enter into business in the English Premier League, most likely through the outright purchase of a soccer team. Tottenham Hotspur F.C. of North London is reported to be the most likely team to be bought by Snyder, which is currently on the market for about $900 million (£450 million) .