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Leonard Kreynin


Leonard Kreynin

Mergers & Acquisitions
New York

Focuses on M&A, private equity transactions, joint ventures, restructurings, spinoffs and corporate governance. A 2023 American Lawyer “Dealmaker of the Year.”

Leonard is a member of our Mergers & Acquisitions and Private Equity practices. His practice focuses on M&A, private equity transactions, joint ventures, restructurings, spinoffs, corporate governance and related matters.

Private equity clients Leonard has advised on multiple transactions include Brookfield Business Partners, I Squared, Metalmark, Tailwind, Avista, Morgan Stanley private equity and infrastructure funds, and their portfolio companies. Corporate clients he has advised on multiple transactions include SS&C, Cboe, BATS, Syngenta, Citigroup, Hanover Insurance Group, Shire, Comcast, Honeywell, Hyosung, Gillette, Roche, Qwest Communications and Shell.

The American Lawyer named Leonard a 2023 “Dealmaker of the Year” for his work advising Brookfield in connection with the $16 billion acquisition of Nielsen by a private equity consortium.

Experience highlights

  • SS&C in multiple acquisitions including Advent Software, Citigroup’s Alternative Investor Services business, Primatics Financial, Conifer Financial Services, DST Systems, Intralinks, IBM’s Algorithmics business, Vidado, Innovest and Blue Prism
  • Brookfield Business Partners in its acquisitions of Johnson Controls’ Power Solutions Business (Clarios), Nielsen Holdings, CDK Global and DexKo Global
  • Syngenta in a number of transactions, including its defense of an unsolicited bid by Monsanto, technology exchange and joint venture with DuPont, and acquisition of Golden Harvest
  • Clarios in various transactions
  • Cboe in its acquisition of BIDS Trading
  • DekKo Global in its acquisition of TexTrail businesses
  • An investor group in its acquisition of Trading Technologies
  • Gain Capital in a number of acquisitions including its merger with StoneX, dispositions and its successful defense of an unsolicited acquisition proposal
  • LIV Capital Acquisition Corp., a SPAC, in its combination with AgileThought
  • LIV Capital Acquistion Corp. II, a SPAC, in its combination with Covalto
  • Tuatara Capital Acquisition Corp., a SPAC, in its pending combination with springbig
  • CNOOC in its acquisition of Nexen, which was the largest overseas acquisition by a Chinese company
  • Transaction Committee of the Board of Directors of Quicksilver Resources in connection with a potential “going private” transaction proposed by its Chairman and CEO
  • Health Medical Associates in its recapitalization
  • A lead investor in the acquisition of Kinder Morgan by an investor group
  • Gillette in its acquisition by Procter & Gamble
  • Qwest Communications in its hostile bids for US WEST and Frontier and its merger with US WEST
  • Echlin in its successful defense against a hostile bid by SPX and its merger with Dana
  • Shell Oil in its joint ventures with Texaco and Saudi Aramco
  • Quicksilver Resources in the disposition of Quicksilver Gas Services, a natural gas exploration and processing company, to First Reserve
  • Mastronardi in connection with its JV with COFRA Holding AG, on the JV’s $127 million acquisition of an agriculture facility from AppHarvest and the immediate leaseback of the same facility
  • Ruby Pipeline’s chapter 11 restructuring
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American Lawyer – “Dealmaker of the Year,” 2023

IFLR1000 – M&A and Private Equity, United States

MergerLinks – “Top Private Equity Lawyers in North America,” 2022

J.D., Columbia Law School
  • Harlan Fiske Stone Scholar
  • Notes and Comments Editor, Columbia Law Review
M.A., Columbia University
B.A., Columbia University
  • Phi Beta Kappa
Law Clerk, Hon. Laurence H. Silberman, U.S. Court of Appeals, D.C. Circuit, 1990-1991
Professional history
  • Partner, 1999-present
  • Associate, 1991-1999
Qualifications and admissions
  • State of New York
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