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Greenhill & Co., Inc. is a leading independent investment bank that has been providing financial advice on significant mergers, acquisitions, restructurings, financings, and capital-raising to corporations, partnerships, institutions, and governments globally. Founded in 1996 by Robert F. Greenhill, the firm established a reputation for high-quality, unconflicted advice. In December 2023, Greenhill & Co. was acquired by Mizuho Financial Group, and now operates as the M&A and restructuring advisory business of Mizuho, significantly expanding Mizuho's investment banking capabilities. Greenhill focuses on building long-term client relationships and offers expertise across a wide range of industries.
Serves as a major center for investment banking advisory services, including M&A, restructuring, and financing advisory, now integrated within Mizuho's global operations.
Located in the Colgate-Palmolive Building, a prominent Midtown Manhattan skyscraper on Park Avenue, offering modern office facilities typical of leading financial institutions.
Historically characterized by a demanding, intellectually stimulating environment typical of elite investment banking. Emphasizes client focus, analytical rigor, and teamwork. Post-acquisition, integration with Mizuho's broader corporate culture is ongoing.
Historically the global headquarters of Greenhill & Co., establishing its presence in the world's leading financial center. Continues to be a significant office for Mizuho's investment banking division in the Americas.
As part of Mizuho, Greenhill's expertise in M&A advisory, restructuring, financing, and capital raising is now integrated into Mizuho's extensive global network. This combines Greenhill's historically strong presence in North America, Europe, and Australia with Mizuho's significant operations across Asia, the Americas, and EMEA. The integrated platform supports clients globally on complex domestic and cross-border transactions across a diverse range of industries.
300 Park Avenue
New York
NY
USA
Address: Lansdowne House, 57 Berkeley Square, London, W1J 6ER, UK
Serves clients across the UK and Continental Europe, providing specialized investment banking advisory and connecting them to Mizuho's global network.
Address: TaunusTurm, Taunustor 1, 60310 Frankfurt am Main, Germany
Acts as a crucial point of contact for clients in one of Europe's largest economies, facilitating access to global capital markets and strategic advisory.
Address: Otemachi One Tower, 1-2 Otemachi 1-chome, Chiyoda-ku, Tokyo 100-8176, Japan (Mizuho HQ, Greenhill team integrated)
Provides a strong link between Japanese corporates and global M&A opportunities, supported by Greenhill's advisory talent integrated into Mizuho's extensive Japanese network.
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As of April 2025, Greenhill & Co.' leadership includes:
Greenhill & Co. has been backed by several prominent investors over the years, including:
The most significant executive change in the last 12 months was the acquisition of Greenhill & Co. by Mizuho Financial Group, completed in December 2023. This led to Scott L. Bok, former Chairman & CEO of Greenhill, transitioning to Chairman of M&A and Restructuring Advisory at Mizuho. Other Greenhill Managing Directors and professionals are reported to be continuing in their roles within the new structure.
Discover the tools Greenhill & Co. uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Historically, Greenhill & Co. used common corporate email formats such as first initial followed by last name. Following its acquisition by Mizuho, employees are likely transitioning to Mizuho's email system (e.g., firstname.lastname@mizuhogroup.com or regional variations like @us.mizuho-sc.com). Legacy Greenhill emails might have forwarding set up for a transitional period.
flast@greenhill.com (e.g., jdoe@greenhill.com) was a common historical format for Greenhill.
Format
sbok@greenhill.com (example of historical format for Scott Bok; now likely uses a Mizuho email)
Example
65%
Success rate
Mizuho Financial Group News Release • December 19, 2023
Mizuho Financial Group announced the successful completion of its acquisition of Greenhill & Co., Inc., an independent investment bank. Greenhill will operate as part of Mizuho, significantly enhancing its M&A and restructuring advisory capabilities globally....more
PR Newswire / Company Press Release • May 22, 2023
Greenhill & Co., Inc. (NYSE: GHL) and Mizuho Financial Group, Inc. (NYSE: MFG) announced that they have entered into a definitive agreement for Mizuho to acquire Greenhill in an all-cash transaction at a price of $15 per share, reflecting an enterprise value of approximately $550 million, including Greenhill's debt....more
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