Mr. Callistus Udalor graduated from the University of Lagos in 1987 with a Bachelor of Science (B.Sc.) Degree in Political Science (Second Class Upper Division).
He later studied law at the University of California Berkeley School of Law, obtaining a Juris Doctor degree in 1997. Mr. Udalor joined the law firm of Simpson Thacher & Bartlett (a firm with over 800 lawyers) in 1997 as an Associate in the Corporate Law Department. He worked in the New York and London offices of the firm.
He worked on many transactions, including mergers and acquisitions, corporate finance, joint ventures, initial public share offerings, and bond offerings. He left the firm in 2005, to return to Nigeria.
Prior to joining Simpson Thacher & Bartlett, Mr. Udalor worked with Hewlett Packard in Mountain View, California and the law firm of Wilson Sonsini Gooodrich & Rosati in Palo Alto, California. In 2005 he co-founded Constant Capital Partners Limited, based in Lagos.
He executed a broad range of advisory transactions for clients in various industries. Mr. Udalor left Constant Capital in 2011.