Company Details
Technology Stack
Professional Summary
Shum Warren is CIO, Asia Pacific at TransUnion. TransUnion operates in the information technology & services industry and has 13000 employees. Based in Hong Kong, Hong Kong. Classified as a c-suite-level CIO leader. Their organization's technology stack includes CloudFlare CDN, Salesforce, CSC Corporate Domains, Outlook, CloudFlare Hosting, and 7 other technologies. TransUnion reports annual revenue of 4183800000.
Industry & Role Insights
- • CTO Rank tracks 16,373 CIO leaders with verified contact information.
- • There are 166,587 tech leaders in the information technology & services industry in our database.
- • We have verified contacts for 68 tech leaders at TransUnion.
Position in the CTO Rank Database
- • Shum Warren is 1 of 16,634 leaders with the CIO role tracked in the CTO Rank database.
- • 2,802 hold the CIO role at information technology & services companies (out of 167,492 total information technology & services leaders in our database).
- • 96 hold the CIO role at companies with 13000 employees.
- • Typical CIO compensation: $230,000 – $500,000 (median $360,000). Composite from levels.fyi, Glassdoor, and Payscale data; adjusted for state cost of labor.
Data compiled from LinkedIn public profiles, company filings, and verified public technology signals. Methodology & sources · Updated June 2026.
Frequently Asked Questions
How do I contact Shum Warren?
Shum Warren has a verified email address on file on CTO Rank. They work at TransUnion. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does Shum Warren work for?
Shum Warren is CIO, Asia Pacific at TransUnion, a company in the information technology & services industry with 13000 employees. The company is headquartered in Chicago, Illinois, United States.
What is Shum Warren's role in technology leadership?
Shum Warren is classified as a CIO leader at the c-suite level.
What technologies does Shum Warren's organization use?
Shum Warren's organization uses a technology stack that includes CloudFlare CDN, Salesforce, CSC Corporate Domains, Outlook, CloudFlare Hosting, DemandBase. This information is useful for sales teams, recruiters, and technology vendors.
Is Shum Warren open to recruiting or new opportunities?
CTO Rank does not track open-to-work status. The best approach is to reach out directly to Shum Warren using the verified contact information available to Pro members. When recruiting a CIO, Asia Pacific, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.
Can I pitch or sell to Shum Warren at TransUnion?
Shum Warren is CIO, Asia Pacific at TransUnion. CIOs like Shum Warren typically evaluate vendors in CloudFlare CDN, Salesforce, CSC Corporate Domains, and related categories. Use CTO Rank Pro to get verified email and approach directly.
How accurate is Shum Warren's profile data?
CTO Rank verifies and refreshes profile data weekly. Shum Warren's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.
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