Arthur D. Little is an international management consulting firm originally headquartered in Boston, Massachusetts, United States, founded in 1886 and formally incorporated in 1909 by Arthur Dehon Little, an MIT chemist who extended the applications of cellulose acetate, especially its use as artificial silk. Arthur D. Little pioneered the concept of contracted professional services. The company played key roles in the development of business strategy, operations research, the word processor, the first synthetic penicillin, LexisNexis, SABRE, and NASDAQ. Today the company is a multinational management consulting firm operating as a partnership.

LexisNexis is an American data analytics company headquartered in New York, New York. Its products are various databases that are accessed through online portals, including portals for computer-assisted legal research (CALR), newspaper search, and consumer information. During the 1970s, LexisNexis began to make legal and journalistic documents more accessible electronically. As of 2006, the company had the world's largest electronic database for legal and public-records–related information. The company is a subsidiary of RELX.