Binding Nonsignatories to Arbitration Agreements

Thomas J. Hall and Judith A. Archer

Recent years have witnessed significant growth in the use of arbitration to resolve disputes. Viewed by many as less costly and speedier than litigation, and certainly more private, it has become the preferred route for many. With the prevalence of arbitration clauses in modern agreements, it is more important than ever for individuals and businesses to express clearly the scope of who is bound to an arbitration agreement and to understand the theories under the law for binding nonsignatories.

New York public policy encourages the enforcement of agreements to arbitrate. See Matter of Smith Barney Shearson v. Sacharow, 91 N.Y.2d 39, 49 (1997). Because arbitration is a matter of contract, however, “a party cannot be required to submit to arbitration any dispute which he has not agreed so to submit.” United Steelworkers of Am. v. Warrior & Gulf Navigation Co., 363 U.S. 574, 582 (1960). Despite this general rule and CPLR §7501’s requirement that arbitration agreements be in writing, New York has recognized that there is sometimes a “need to impute the intent to arbitrate to a nonsignatory.” TNS Holdings v. MKI Sec., 92 N.Y.2d 335, 339 (1998). Courts in New York consider a well-established set of theories for determining when nonsignatories should be bound to arbitration agreements.

Theories Binding Nonsignatories



A nonsignatory party to an agreement containing an arbitration clause may find itself bound to arbitrate based on any of five potential theories: (1) incorporation by reference; (2) assumption; (3) veil-piercing/alter ego; (4) estoppel; and (5) agency. BGC Notes v. Gordon, No. 651808/14 (N.Y. Co. July 13, 2015) (citing Thomson-CSF, S.A. v. American Arbitration Ass’n, 64 F.3d 773, 776 (2d Cir. 1995)). If a court finds any of the five theories supported by the facts of the case, a nonsignatory will be bound to the arbitration clause in question.

The first three grounds for binding nonsignatories arise less frequently. The first ground, incorporation by reference, may be found where a party to an arbitration agreement enters into a separate contractual agreement with a nonsignatory that incorporates the arbitration clause. As to the second ground, assumption, a nonsignatory may be bound to arbitrate where its conduct indicates that it is assuming the obligation to arbitrate, including by sending a representative to the arbitration or arguing in court that litigation is improper because the dispute must be arbitrated. See Gvozdenovic v. United Air Lines, 933 F.2d 1100, 1105 (2d Cir. 1991); In re Transrol Navegacao S.A., 782 F.Supp. 848, 851 (S.D.N.Y. 1991). The third ground can arise where the court pierces a corporate veil to bind a parent company to an arbitration clause of its subsidiary. Thomson-CS, 64 F.3d at 777.

The two remaining theories—estoppel and agency—have been relied upon in recent Commercial Division cases addressing whether a nonsignatory is bound to an arbitration clause. Both are discussed below.