Enterprise Leadership
Led large-scale technology organizations across public, private, and IPO-stage companies spanning multiple industries.
ABOUT
Senior leadership. Real experience.
Reena Tiwari
Founder, Tallac Advisory
Reena Tiwari is a Fortune 500 CIO and enterprise technology executive with a track record of turning technology into growth engines. She has served as CIO at multiple high-growth and publicly traded companies — leading large-scale technology organizations, driving IPO readiness, and delivering measurable outcomes across AI transformation, digital modernization, and operational efficiency.
Named CIO of the Year by HMG Strategy and recognized as a Top 50 Technology Professional, Reena founded Tallac Advisory to bring senior, experienced technology leadership to organizations navigating critical inflection points.
EXPERIENCE
What I bring to the table.
AI & Digital Transformation
Delivered AI-driven solutions and digital modernization programs with measurable revenue and efficiency outcomes.
IPO & Board Readiness
Prepared organizations for public markets — spanning cybersecurity, compliance, audit committee reporting, and governance.
Global Team Building
Built and led high-performing, cross-functional teams across multiple continents with a focus on culture and execution.
RECOGNITION & ADVISORY
Beyond the work.
Recognition
- CIO of the Year — HMG Strategy, 2025
- Top 50 Technology Professional — ON Conferences, 2025
- CIO of the Year Finalist — Inspire CIO, 2025
- Digital Leader of the Year — Women in IT, Silicon Valley, 2018
Board & Advisory Roles
- Board Advisor — Stitchflow.io
- Advisory Board Member — UC Berkeley Extension, Data Science Program
- Founding Member — FirstBoard.io