The Firm: This growing corporate department has amassed a number of financial institutions, private equity firms and corporations as clients recently, including Ares Management and Morgan Stanley. The team is carving out a strong niche for itself within the private equity sphere and in international deals, with a particular focus on Latin America. A recent deal is the $4.5 billion cross-border acquisition of Talecris Biotherapeutics by Grifols, in which Proskauer represented the purchaser.

Sources Say: "The team just does above and beyond what would be required in a transaction. They really do everything!"

Key Individuals: Ronald Papa co-heads both the global corporate group and M&A practice. He recently represented the H.W. Wilson Company in its purchase by EBSCO Publishing.