The secretive business havens of Cyprus and the Cayman Islands face a potent rival: Cheyenne, Wyoming. At a single address in this sleepy city of 60,000 people, more than 2,000 companies are registered. The building, 2710 Thomes Avenue, isn't a shimmering skyscraper filled with A-list corporations. It's a 1,700-square-foot brick house with a manicured lawn, a few blocks from the State Capitol. A Reuters investigation has found the house at 2710 Thomes Avenue serves as a little Cayman Island on the Great Plains. It is the headquarters for Wyoming Corporate Services, a business-incorporation specialist that establishes firms which can be used as shell" companies, paper entities able to hide assets. Wyoming Corporate Services will help clients create a company, and more: set up a bank account for it; add a lawyer as a corporate director to invoke attorney-client privilege; even appoint stand-in directors and officers as high as CEO. Among its offerings is a variety of shell known as a "shelf" company, which comes with years of regulatory filings behind it, lending a greater feeling of solidity. All the activity at 2710 Thomes is part of a little-noticed industry in the U.S.: the mass production of paper businesses. Scores of mass incorporators like Wyoming Corporate Services have set up shop.