Alain Dermarkar

Alain Dermarkar


Alain is US Co-Head of Private Equity and Private Equity Sector Lead – US. He focuses on U.S. and international mergers and acquisitions and other strategic transactions, including minority investments and joint ventures.

Alain’s private equity and strategic clients operate and invest in various industries including technology, manufacturing, aerospace/defense, environmental, construction, healthcare, consumer products, energy and real estate.

Alain has completed more than US$250 billion of transactions for public and private U.S., European and Asian companies and private equity firms.

Alain also counsels clients on capital raising transactions, corporate governance, and takeover preparedness, and has advised on numerous special purpose acquisition company (SPAC) related transactions.


Representative matters

J.F. Lehman in multiple transactions, including its US$1.2 billion take-private of Heritage-Crystal Clean Inc., its acquisition and subsequent sale of Lone Star Disposal, and its acquisition of Narda-MITEQ. 

New Mountain Capital in multiple transactions by portfolio companies, including acquisitions and divestitures for Aegion Corp., 3E, Profile Products, Cumming Group and Zep

Great Elm Group, Inc. in multiple transactions including the US$80 million sale of a majority equity interest in Great Elm Healthcare, LLC to QHM Holdings Inc. and the sale of a majority interest of Forest Investments, Inc. to affiliates of JPMorgan Chase & Co.

Speaking Engagements

  • “Primer on SPACs”, December 2020
  • Panelist, “IPO Alternatives: What You Should Know About SPACs and Direct Listings”, Austin Finance Leadership Summit, November 2020


  • Recognized as a leading lawyer for Corporate/M&A in Texas, Chambers USA, 2020-2023 
  • “Most Effective Dealmakers”, Texas Lawyer, 2022
  • “Client Service All-Star”, The BTI Consulting Group, 2020-2023
  • “Rising Star”, Texas Super Lawyers, 2015-2018 
  • “Emerging Leaders Award”, M&A Advisor, 2016
  • “Best Lawyers in Dallas”, D Magazine, 2018



Texas, 2011
Massachusetts, 2006


B.S., Business Administration and Management, Boston University, 2000

J.D., Law, Georgetown University, 2006

M.B.A., Business Administration, Georgetown University, 2006


A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.