The two-month-old gambling venture, which according to the site has a gaming license from Antigua, has become the world's biggest Internet gaming company, with a turnover of $12.2 million (SGD $21.2 million) in June.
My Casino managing director Gordon McIntosh attributed the company's success in part to "strong management," but also to strong support from Southeast Asia.
Although McIntosh could not give a breakdown of the casino's gamblers by country, he stressed that the majority of them were from this region.
"My Casino is confident that this impressive turnover trend will continue," McIntosh told The Business Times.
The company has a license to operate for 10 years and has the opportunity to have it extended for another 10 years.
Singapore.CNET.com's Susan Tsang reported from Singapore.