Over 25 years of cross-industry executive leadership, including global CIO, CTO, and CISO roles in technology, federal, legal, financial, and consumer goods sectors. Former US Army intelligence officer and proven transformation leader.
- Gartner client? Log in for personalized search results.
Gartner Executive Partner
DiAnna Thimjohn
With a unique blend of military discipline and executive leadership, DiAnna Thimjohn brings decades of experience as CIO, CTO, and CISO across multiple industries and continents. As a Gartner Executive Partner, she leverages deep operational and transformational expertise to guide senior leaders through complex challenges, delivering measurable business impact and fostering trusted, empathetic relationships.
Business impact
Clients partnering with DiAnna have successfully restructured leadership teams, modernized technology platforms, and achieved significant gains in efficiency, innovation, and profitability—while building resilient organizations ready for future challenges.
Industry
Technology and IT Services, Banking, Financial Services & Insurance
Region
United States
