William R. Ziegler

William R. Ziegler is of Counsel to Satterlee Stephens LLP. 

He has practiced corporate, banking and securities law since 1968.  Mr. Ziegler holds directorships in several corporations, including Grey Wolf, Inc., Geokinetics Inc., Flotek Industries, Inc. Somerset Production Co., Vesta Corp. and La Crosse Milling Company.  He specializes in financial, transactional and regulatory matters, including mergers, acquisitions and dispositions, commercial and industrial financing transactions, workouts and debt restructurings, and securities offerings. 

During his career, he has served as a principal outside counsel to Fleet Bank   (New York Region), Mutual Benefit Life (Capital Markets Group), Empire Insurance Group, Macmillan, Inc., The United Corporation, Canadian International Power Company Ltd. and the Grumman Corporation Employee Investment Plan, which held the controlling block of that company’s stock.  Mr. Ziegler has served as regular counsel to property casualty and life insurance companies and has participated in the demutualization of a New York State insurer.  He also represents public and private energy companies and energy service companies as their general counsel and in a variety of transactional and securities matters.  He serves as Chairman of Vesta Corp. and Geokinetics and Vice Chairman of Grey Wolf, Inc.

In the course of his practice, Mr. Ziegler has had in-depth experience with mergers and acquisitions of public and private corporations. He has advised corporate fiduciaries which were subject to hostile takeovers and in a variety of other circumstances, including proxy contests, insolvencies and corporate reorganizations.  He has represented first-time issuers of publicly traded debt and equity securities and corporations which have issued such securities to finance capital expansion and in connection with acquisitions and reorganizations.

Mr. Ziegler is admitted to practice in New York and before the United States Court of Appeals, Second Circuit.

Mr. Ziegler earned his undergraduate degree (B.A.) from Amherst College, his law degree (LL.B.) from University of Virginia Law School; and his masters degree (M.B.A.) from Columbia University Graduate School of Business.

Contact Information



(212) 404-8775


Practice Areas: 


University of Virginia (J.D.)
Columbia University Graduate School of Business (M.B.A.)
Amherst College (B.A.)


New York
United States Courts of Appeals for the Second Circuit