GHL on NYSE

Greenhill & Co.

Logo: Greenhill & Co., Public domain, via Wikimedia Commons4

American investment bank

Greenhill & Co., Inc. is an American investment banking advisory firm founded in 1996 in New York by Robert F. Greenhill. The firm provides advice on significant mergers, acquisitions, restructurings, financings, and capital raisings to leading corporations, partnerships, institutions and governments across a number of industries. Since its inception, Greenhill has advised on transactions valued at close to $3 trillion.2 Its shares trade on NYSE under the symbol GHL.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1996Founded1

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  • TickerGHL on NYSE1
  • Industryinvestment bank1
  • HeadquartersNew York City1
  • Websitewww.greenhill.com
  • Legal formCorporation3
  • LEI529900VEOQHHHSPI9C693
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressC/O CORPORATION SERVICE COMPANY, 19808 Wilmington, United States3
  • Registered withDivision of Corporations, Department of State, 37750423
Time-life building
Photo: Filip Maljković, Public domain, via Wikimedia Commons6

Greenhill & Co., Inc. is an American investment banking advisory firm founded in 1996 in New York by Robert F. Greenhill. The firm provides advice on significant mergers, acquisitions, restructurings, financings, and capital raisings to leading corporations, partnerships, institutions and governments across a number of industries. Since its inception, Greenhill has advised on transactions valued at close to $3 trillion.2

Corporate structure

Greenhill & Co. is part of a group headed by Mizuho Financial Group. 108 entities, 15 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Mizuho Financial Group 東京都 千代田区, Japan
    • Mizuho Bank 東京都 千代田区, Japan
      • Mizuho Americas LLC New York, New York, United States
        • Greenhill & Co. New York, New York, United States
        • Mizuho Securities USA Inc. New York, New York, United States
        • ASSET MANAGEMENT ONE USA INC. Subsidiary · New York, New York, United States
          • 2 more
        • MIZUHO AMERICA LEASING LLC Subsidiary · Albany, New York, United States
        • Mizuho Americas Finance LLC Subsidiary · New York, New York, United States
        • MIZUHO AMERICAS SERVICES LLC Subsidiary · New York, New York, United States
        • Mizuho Bank (USA) Subsidiary · New York, New York, United States
        • MIZUHO CAPITAL MARKETS LLC Subsidiary · New York, New York, United States
        • MIZUHO MARKETS AMERICAS LLC Subsidiary · Wilmington, Delaware, United States
        • Mizuho Markets Cayman LP Subsidiary · George Town, Cayman Islands
      • LINE BANK Subsidiary · Shinagawa, Japan
      • East Japan Railway Company Stake · 4.64% · 東京都 渋谷区, Japan
      • Subaru Corporation Stake · 1.31% · Shibuya Ku, Japan
      • Mizuho Bank Europe N.V. Subsidiary · 100% · Amsterdam, Netherlands
        • MIZUHO BANK EUROPE N.V. PARIS BRANCH Branch · Amsterdam, Netherlands
      • Акционерное общество "Мидзухо Банк (Москва)" Subsidiary · 100% · Москва, Russia
      • MIZUHO BANK MEXICO SA INSTITUCION DE BANCA MULTIPLE Subsidiary · 99.99% · Ciudad de México, Mexico
      • BANCO MIZUHO DO BRASIL S.A. Subsidiary · 東京, Japan
      • Mizuho Finance (Aruba) A.E.C. (Mizuho Finance (Aruba) A.V.V.) Subsidiary · Oranjestad, Aruba
      • PT BANK MIZUHO INDONESIA Subsidiary · Jakarta, Indonesia
      • rui sui yin hang zhong guo you xian gong si (瑞穗银行(中国)有限公司) Subsidiary · 上海市, China
      • Mizuho Bank, Ltd. Branch · Chiyoda-ku Tokyo, Japan
      • MIZUHO BANK, LTD. Branch · Chiyoda Ku, Japan
      • MIZUHO BANK, LTD. Branch · Chiyoda Ku, Japan
      • MIZUHO BANK, LTD. FILIALE DÜSSELDORF Branch · Chiyoda Ku, Japan
      • 주식회사 미즈호은행 Branch · Tokyo, Japan
    • Mizuho Securities 東京都 千代田区, Japan
    • Asset Management One Subsidiary · 70% · Tokyo
    • Mizuho Trust & Banking Subsidiary · 東京都 千代田区, Japan
    • Trust & Custody Services Bank Subsidiary · Tokyo
    • MIZUHO ALTERNATIVE INVESTMENTS, LLC Subsidiary · New York, New York, United States
    • MIZUHO CAPITAL INVESTMENT (JPY) 2 LIMITED Subsidiary · George Town, Cayman Islands
    • MIZUHO CAPITAL INVESTMENT (JPY) 3 LIMITED Subsidiary · George Town, Cayman Islands
    • MIZUHO FINANCE (CAYMAN) LIMITED Subsidiary · George Town, Cayman Islands
    • MIZUHO FINANCIAL GROUP (CAYMAN) 2 LIMITED Subsidiary · George Town, Cayman Islands
    • アセットマネジメントOne株式会社 Subsidiary · 東京都 千代田区, Japan
      • ASSET MANAGEMENT ONE INTERNATIONAL LTD. Subsidiary · London, United Kingdom
      • Mizuho Global Alternative Investments, Ltd. (アセットマネジメントOneオルタナティブインベストメンツ株式会社) Subsidiary · 東京都 千代田区, Japan
        • Cosmic Blue Project Finance SPC - Cosmic Blue PF Lily SP (Cosmic Blue Project Finance SPC – Cosmic Blue PF Lily SP) Fund · Chiyoda-ku, Japan
        • Cosmic Blue Project Finance Trust - Cosmic Blue PF Trust Lily Fund · Chiyoda-ku, Japan
      • 2026 Asia Equity Feeder Trust Fund · Chiyoda-ku Tokyo, Japan
      • 2026 Asia Equity SP Fund · Chiyoda-ku Tokyo, Japan
      • Global High Yield Bond Fund Currency Selection Fund · Chiyoda ku, Japan
      • JUNIversitas GB IG AMONE 1 Fund Unit Trust Fund · Chiyoda-ku Tokyo, Japan
      • New World AMO European Corporate Hybrid Security Fund Fund · Tokyo, Japan
      • Shinko Global Equity Fund (JPY-hedged) Fund · Chiyoda-ku, Japan
      • Shinko Global Equity Fund (Unhedged) Fund · Chiyoda-ku, Japan

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0); owners and owned firms from Form ADV, the registration investment advisers file with the SEC. Each entity in the chart links to its source.

The story

Greenhill & Co. was established in New York City in 1996 by Robert F. Greenhill, the former president of Morgan Stanley and former chairman and chief executive officer of Smith Barney. He founded the first M&A group on Wall Street while at Morgan Stanley and became an early pioneer of the industry.

Greenhill & Co. has been featured in many prominent assignments since its founding including the $100 billion acquisition of ABN AMRO in 2007, the United States Department of Treasury's divestiture of its $51 billion stake in AIG in 2012, Roche on the $46.9 billion acquisition of the outstanding publicly held interest in Genentech in 2009, and the $17 billion merger between Northwest Airlines and Delta Air Lines in 2008. The firm was also involved as an adviser to a highly influential group of former Morgan Stanley partners in their successful and controversial bid to have former Morgan Stanley CEO Philip J. Purcell step down in 2005.

Like a number of other independent investment banks, Greenhill has grown by recruiting a significant number of managing directors from major investment banks (as well as senior professionals from other institutions). The firm has also expanded globally, opening further offices and operations in North America, Europe, Australasia, Asia, South America and the Middle East, most recently in Singapore.

In May 2004, the firm completed an initial public offering of common stock onto the New York Stock Exchange.

In October 2013, the firm announced that it had opened an office in São Paulo in conjunction with hiring Daniel Wainstein, the former head of Goldman Sachs' Brazilian investment banking business.

In 2014, Greenhill advised on the $25 billion acquisition of Forest Laboratories by Actavis and the $10 billion merger between Safeway and Albertsons. Both transactions were among the ten largest of the year globally.

In January 2015, Greenhill agreed to purchase Cogent Partners, a leading investment bank focused on secondary market advisory for private equity investments.

In July 2015, Greenhill advised Teva Pharmaceuticals on the $40.5 billion acquisition of Allergan plc’s Generics business in one of the largest transactions globally in 2015.

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In 2017, Greenhill advised Tesco on the £3.7 billion acquisition of Booker, the UK's largest food wholesale operator, and advised Ladbrokes Coral for a £4 billion takeover approach by GVC.

In 2019, Greenhill advised International Flavors & Fragrances on its merger with DuPont’s Nutrition & Biosciences (N&B) business in a Reverse Morris Trust transaction. The deal valued the combined company at $45.4 billion on an enterprise value basis, reflecting a value of $26.2 billion for the N&B business based on IFF’s share price as of December 13, 2019.

In 2019, the firm advised Total System Services, Inc., a provider of payment processing, merchant services and payment services, on its $21.5 billion merger with Global Payments Inc., a payment technology company focused on merchant acquiring and software solutions.

In 2022, the firm advised Brookfield Corporation on its acquisition of control of Westinghouse Electric Company, one of the world’s largest nuclear services businesses, for an enterprise value of $7.9 billion. Following the completion of the transaction, Brookfield holds a 51% stake in Westinghouse, with the remaining stake held by Cameco Corporation.

In May 2023, Japanese group Mizuho agreed to acquire Greenhill for $550 million.

From Wikipedia’s article on Greenhill & Co., shared under CC BY-SA 4.0.5

Leadership

Who has led Greenhill & Co., and when. Pick a name to see everywhere that person has worked.

Products and brands

Listed on Wikidata.1

Subsidiaries and ownership

Parent company (GLEIF)

Ultimate parent

Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record.

Timeline

  1. Nov 30, 2023Parent Directly consolidated by Mizuho Americas LLC3
  2. 1996Founded Founded1