Rivlin worked primarily in the areas of formation and financing of new enterprises; Antitrust and unfair
 competition; telecommunications; technology, licensing and intellectual property; international trade; legislation; and
 trade and professional associations.
 
Founder or Co-founder or counsel to the Founders and/or a present or former Director of:
 DHL/Net Express (San Francisco)
 Newfound Corporation (U.S. Virgin Islands)
 Coaxial Systems, Inc. (Wash., D.C.)
 AutoInfo, Inc. (New Jersey) (OTC, NASDAQ: "Auto")
 Caremco (San Juan)
 Arista Industries, Inc. (Stamford)
 KBA Associates (Boston)
 Ruesch International Monetary Services, Inc. (Wash., D.C., NY, LA, Zurich, etc.)
 Shinju Pearl, Ltd. (Virginia - Japan)
 Turks & Caicos Investments, Ltd.
 General International Financial Corporation (Maryland)
 Tribal Funding, Development & Management Corporation (Maryland)
 Global Key (Colorado Springs)
 China Petroleum Supply Corporation (Hong Kong)
 Hainan Zhonghe Refinery Corporation (Haikou, China