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Siggy Seibold

Partner, New York
Serves clients in the capital markets sector and works with global leading investment banks in the United States, Europe, and Asia

About Siggy

Siggy is a partner in our capital markets sector with expertise in technology and operations. She has more than 25 years of experience working for major investment banks in the United States, Europe, and Asia.

Examples of Siggy’s experiences include the following:

  • operating-model work including right-sourcing assessments and execution of defined in- or outsourced functions, including “know your customer” (KYC), application management, middle- and back-office activities, and execution of IT organization transformation
  • helping five investment banks to explore disruptive approaches to reference data management which led to the establishment of a utility
  • end-to-end operations capability assessments to help implement uplift by leveraging automation and analytics technology
  • defining the global digital strategy of a major consulting firm for capital markets and laying the foundation for the blockchain practice including significant investment in the distributed ledger technology (DLT) fintech space
  • filing a patent, protecting a mathematical workflow solution pertaining short-selling regulation in investment banking

Prior to joining McKinsey, Siggy was a partner at KPMG and Accenture. She started her professional career as banking apprentice, investment banking trainee, and foreign exchange trader at Deutsche Bank before working for a decade in IBM’s consulting division.

Siggy holds an MBA in finance from City University.

Published work

Five actions to build next-generation know-your-customer capabilities,” McKinsey & Company, October 2021

Past experience


Managing director, partner

Senior managing consultant

Deutsche Bank
Foreign exchange trader


City University
MBA, finance