杰富瑞集团（Jefferies Group, Inc.，纽约证券交易所：JEF）是一家大型全球证券和投资银行集团，它已经为各种公司及其投资者提供了45年的服务。杰富瑞总部位于纽约，在全球25个城市设有办事处。它为客户提供资本市场和金融咨询、机构经纪、证券研究和资产管理等服务。杰富瑞投资银行（Jefferies & Company, Inc.）是杰富瑞集团的主要运营子公司。成立于英国的杰富瑞国际有限公司（Jefferies International Limited）是杰富瑞集团的全资子公司，受到英国金融服务监管局（UK Financial Services Authority）的授权和监管。

　　Jefferies Group, Inc

　　Jefferies Group, Inc (JEF) is a full-service investment bank and asset management firm focused on growth and middle-market companies-- those with revenues between $25 million and $1 billion. The firm advises its clients on merging with or acquiring other companies, assists in raising capital, facilitates client equity and fixed income trading, and manages assets for institutional investors. Since Jefferies works mainly with middle-market firms, their transactions are typically smaller in value and more US-centric than those of larger competitors such as Goldman Sachs Group (GS) or Morgan Stanley (MS). However, unlike boutique investment banks which often specialize in a specific area, Jefferies offers a full range of services to its smaller clients.

　　The company has further strengthened its service offering by building its industry focused advisory groups through the acquisition of various boutique investment banks, including Quarterdeck for Aerospace, Defense, and CleanTech, Randall & Dewey for Energy, Financial & Business Services, and Broadview for Technology and Transportation, Oil Service & Infrastructure.