Heather Greenfield is a partner in the Global Antitrust/Competition Practice of White & Case. Recognized in 2022 and 2021 by The Legal 500 US as one of only two "Rising Stars" nationwide in Merger Control, Heather has extensive experience representing clients in all phases of merger clearance before the Federal Trade Commission and Department of Justice, and before federal courts in litigated challenges by the government. As reported by The Legal 500 US, clients said Heather is "incredibly bright, and always finds solutions to unique problems" and further acclaimed she is "dedicated, sharp, calm." 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, including in Europe, Asia, and South America. 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, semiconductors, solid waste, railroads, rental cars, construction, chemicals, and retail.