Behind Las Vegas Sands in Macau are U.S.-based competitors Wynn Resorts and, more distantly, MGM Resorts International.

FORBES: Las Vegas Sands Stays On Top With Macau Muscle

The Las Vegas Sands Corporation, which owns the Venetian casinos in Las Vegas and Macau, opened Marina Bay Sands in Singapore in April.

ECONOMIST: Shuffle up and deal

Nevertheless, Las Vegas Sands has expanded rapidly in the Macau region and developed a portfolio of properties to control a significant portion of the market.

FORBES: Is Las Vegas Sands Future Hitched To Macau?

Both Las Vegas Sands and Wynn Resorts have already listed their Macau operations in Hong Kong.

FORBES

Las Vegas Sands generated 81% of its revenue in Macau and Singapore in Q3.

FORBES: , MGM Resorts and Las Vegas Sands

Las Vegas Sands makes the bulk of its earnings in Macau, the world's biggest gambling market and the only Chinese territory where casinos are allowed, and Singapore.

BBC: Marina Bay Sands

Las Vegas Sands reported its Q4 2012 results last week and Macau once again was a big driver to growth.

FORBES: Is Las Vegas Sands Future Hitched To Macau?

Adelson later gambled on casinos in Las Vegas, Macau and Singapore, and took his Las Vegas Sands public in December 2004.

FORBES: Magazine Article

Sheldon Adelson, the Las Vegas Sands Corp. chairman, recently opened the Sands Cotai Central, making it the 35th casino in Macau.

FORBES: Betting on Macau, Say They Still Need More Rooms

Shares of his Las Vegas Sands casino company have fallen more than 95% in a year as gamblers stay home in Nevada and Macau.

FORBES: In Pictures: The 2009 Billionaire List