Mark J. Wishner

Mark J. Wishner

McLean, VA recognized lawyers icon Recognized in Best Lawyers since 2012
Greenberg Traurig

629 Best Lawyers awards

Greenberg Traurig logo

Awarded Practice Areas

Corporate Law

Biography

Mark J. Wishner has more than 30 years of securities and corporate transactional experience. Mark's practice encompasses public and private securities offerings, domestic and cross-border mergers and acquisitions, SPACs, leveraged buyouts, private investor representations, corporate governance, restructurings and SEC reporting and compliance matters. Since 2004, Mark has led transaction teams in transactions having a value in excess of $3 billion. Mark has wide-ranging industry experience in information technology, government services and biotechnology and has been listed in Chambers USA as a leading corporate attorney in Northern Virginia.

Greenberg Traurig

629 Best Lawyers awards

Greenberg Traurig logo

Overview

  • University of Pittsburgh, BA, graduated 1972

  • Virginia, Virginia State Bar
  • District of Columbia, The District of Columbia Bar

  • Committee for the Campaign for George Mason University Students - Member
  • George Mason University School of Information Technology and Engineering - Advisory Committee Member
  • Virginia, Virginia State Bar
  • District of Columbia, The District of Columbia Bar
  • Committee for the Campaign for George Mason University Students - Member
  • George Mason University School of Information Technology and Engineering - Advisory Committee Member
  • University of Pittsburgh, BA, graduated 1972

Client Testimonials

Mark Wishner is a consummate professional and I greatly value his input and trust him with business dealings. I am grateful to have found a lawyer who goes above and beyond in my mind to understand the business, act in the best interest of the company, and offer sound, excellent advice.

Chris C. Andersen (NJVC, LLC)

Mark is a "renaissance man" in the truest sense of the word. He has developed expertise in a wide range of legal disciplines (corporate, securities, accounting, bankruptcy, and litigation), and is able to combine and assimilate his knowledge across the spectrum and apply it to each problem he encounters. He has a natural curiosity that drives him to find the root cause of an issue, and the determination to take it to its conclusion. And he is driven by an overriding passion about his clients and his profession.

Michael Bisignano (Online Resources Corporation )

Awards & Focus

Lawyer of the Year Badge - 2023 - Corporate Law
Named "Lawyer of the Year" by Best Lawyers® for:
  • Corporate Law, Washington, D.C. (2023)
Recognized in The Best Lawyers in America® 2026 for work in:
  • Corporate Law
Additional Areas of Practice:
  • Securities / Capital Markets Law
  • Securities Regulation
Awards:
  • AV Preeminent® 5.0 out of 5
  • Chambers USA Guide, 2006-2011
  • Chambers USA Guide, 2006-2011

Case History

Cases
  • Areas of Concentration
  • Public and private securities offerings
  • Mergers and acquisitions
  • Corporate governance
  • Securities law compliance
  • Strategic alliances
  • Venture capital financings
  • Private equity transactions
  • Significant Representations
  • Engineering Solutions and Products, Inc. in connection with its leveraged buy-out by Berkshire Partners.
  • KRU Medical Ventures, Inc. in the sale of its managed dialysis centers to DaVita Corporation.
  • Centra Technology, Inc. in connection with its acquisitions of Socio-Cultural Intelligence Analysis, Inc., Courage Services Inc. and Strategic Solutions Unlimited, Inc.
  • Online Resources Corporation in its initial and follow-on public offerings.
  • N.E.W. Customer Service Companies, Inc. in its leveraged buyout by Berkshire Partners.
  • SouthPeak Interactive Corporation in becoming a public company through its business combination with a publicly traded special purpose acquisition corporation.
  • Online Resources Corporation in its acquisition of Princeton eCom Corp.
  • Speedy Cash. with its reorganization and private equity transaction with Friedman, Fleischer & Lowe.
  • Part 2
  • Mercator Partners Acquisition Corp., a publicly-traded special purpose acquisition corporation, in its acquisitions of Global Internetworking, Inc. and European Telecommunications and Technology Limited.
  • Baran Group, Ltd. of Israel in its stock for stock acquisition of 02wireless Solutions, Inc and listing on the NASDAQ Stock Market.
  • Online Resources Corporation in its acquisition of Internet Transaction Solutions, Inc.
  • Checksmart Financial Holdings, Inc. in its reorganization and leveraged buyout to Diamond Castle Partners.
  • N.E.W. Customer Service Companies, Inc. in its leveraged buyout by T.H. Lee Putnam Ventures and Freeman Spogli and in its leveraged recapitalizations.
  • Cellomics, Inc. in its acquisition by Fisher Scientific International Inc.
  • Apptis Holdings, Inc. in its private equity transaction with New Mountain Capital.
  • Apptis Holdings, Inc. in its acquisition of SETA Corporation.
  • Representation of companies primarily in the government information technology and biotechnology sectors.

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