Technology leadership for
what comes next.
Senior perspective when technology, risk, and business decisions start to overlap.
David Giambruno
David Giambruno works with 23 Advisory Group as a Fractional CTO and Trusted Advisor, helping owners and executive teams make high-stakes technology decisions across AI, cloud, cybersecurity, modernization, and operating resilience.
He also serves as Managing Partner at Ancilla.ai. Across his career, David has held CIO, CTO, and CISO leadership roles with organizations including Tribune, Revlon, Shutterstock, and Tivity Health, leading complex technology transformation at enterprise scale.
His work has included reported outcomes of more than $780 million in cost savings, 99.99% uptime, and double-digit performance improvements. His approach is practical: reduce complexity, make the technology serve the business, and leave the organization stronger than it was before.
Technology LeadershipBring senior technology judgment into decisions that need an experienced operator, not another layer of management.
ModernizationTranslate emerging technology into practical choices tied to business value, operating reality, and execution.
InfrastructureModernize platforms and infrastructure with a focus on reliability, performance, cost, and long-term flexibility.
ResilienceStrengthen security and operating resilience without losing sight of how the business actually needs to work.
Start with the decision in front of you.
We can help connect the technology choices to the business outcome you need.