Jack Kantrowitz has represented companies and investment banks on a broad range of securities law and corporate finance matters, including initial public offerings, secondary equity offerings (including offerings by selling securities holders), domestic and cross-border sales of high-yield and investment-grade debt, offerings of structured products, and stock and asset acquisitions. These transactions have involved issuers in Europe, Latin America and Asia, as well as in the United States and Canada and listings on US stock exchanges and the Luxembourg Stock Exchange.

In another significant component of his practice, he advises companies and investors in the venture and technology area, notably in the fields of electronics, telecommunications and life sciences. In addition to capital markets transactions, these activities have included corporate structuring and human resources elements and the negotiation of joint venture and licensing agreements.

Mr. Kantrowitz represented France Telecom in the issuance and sale of US$16.4 billion of its debt, in three currencies and seven tranches of from two to 30 years, for which The American Lawyer named him a "Deal Maker of the Year." He also has represented financial institutions in a series of highly structured future flow transactions for major international commodities corporations and assisted major investment banks in the development of innovative financing vehicles involving intricate swap and derivative components and structured equity products.