Sutherland Asbill & Brennan LLP, rebranded to the abbreviated name of Sutherland, was an AmLaw 100 American law firm. Founded in 1924 by William Sutherland and Elbert Tuttle as Sutherland & Tuttle, the firm originally achieved national prominence on tax issues. Sutherland's practice extended throughout the United States and worldwide, and was focused on seven major practice areas: corporate, energy and environmental, financial services, intellectual property, litigation, real estate, and tax. As of January 2011, the firm had approximately 422 attorneys.