Kelley Drye & Warren LLP is an American law firm founded in 1836. The firm has over 300 attorneys in offices across the United States and in Brussels, Belgium. The firm provides legal services in a wide range of practice areas, including advertising and marketing, bankruptcy, corporate, environmental, government relations, intellectual property, labor and employment, litigation, real estate, and tax. The firm's clients include Fortune 500 companies, privately held businesses, and government entities.