C&K Consultants has been one of the primary providers of back-office systems software to NYSE member firms for the last thirty plus years. Below is a list of our clients, past and present:

Albert Fried & Company
American Securities Corp.
Bank of America Specialists
Bear Hunter LLC
Benjamin Jacobson & Sons
Burns Fry and Timmons Inc.
Cowen & Company
Dresdner Kleinwort Benson North
Einhorn & Company
Ingalls & Snyder
InterContinental Exchange Partners
KV Execution Services LLC
LaBranche & Company
LaBranche Financial Services
Lazard Freres & Company
Murphy, Marseilles, Smith Nammack
Nesbitt Burns Securities
Oscar Gruss Specialist
RSF Partners
Schlumberger Limited
Siemens Capital Corp.
Spear, Leeds & Kellogg
Stern & Kennedy, Inc.
Streicher & Company
Van Der Moolen Specialist
Walter J. Dowd, Inc.