Annessa McKenzie joined Calpine Corporation in 2015, and currently serves as VP of Supply Chain and Chief Security Officer, responsible for setting Cyber and Physical security strategies across all functional business units within Calpine as well as the overall strategy for IT Compliance, Business Continuity, Supply Chain and Facilities. Annessa’s focus has been establishing long-term investment roadmaps, assessing IT/OT and Operational risk by Business Unit and deploying value-added zero-trust security architectures with compliance in mind across the organization. Annessa has volunteered as the Houston FBI Infragard Power & Utilities Sector Chief since 2015.

Prior to joining Calpine, McKenzie held the role of Chief Information Security Officer at Baker Hughes where she was responsible for a multi-national team focused on cyber-defense, securing digital oilfield operations, security of future oilfield product designs and consulting with Baker Hughes’ global oilfield customers; PricewaterhouseCoopers’ advisory practice and the U.S. Drug Enforcement Administration HIDTA task force.

McKenzie holds an MBA and a Bachelor’s degree from Louisiana State University, as well as CISSP, CRISC and CISA certifications.

Annessa McKenzie was named one of Houston’s top millennial women to watch in 2019 by the Houston Chronicle and in 2020 was nominated as Orbie awards’ 2020 Houston CIO of the Year.