Heather Greenfield is a partner in the Global Antitrust/Competition Practice of White & Case. Heather has extensive experience guiding clients through all phases of merger clearance and non-merger investigations (DOJ, FTC, state AGs), and before federal courts in litigated challenges by the government.

Clients also benefit from Heather's significant experience on compliance related to the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act) and global merger notification requirements. Heather has a proven track record advising clients on complex cross-border transactions that trigger filings around the world. Her expertise spans dozens of industries including technology, pharmaceuticals, health care, medical devices, energy, semiconductors, solid waste, railroads, rental cars, construction, chemicals, and retail.