
Owen Whelan
Managing Director
LinkedInAbout Sybil
We are actuaries, data scientists and software specialists with a shared interest: making insurance portfolio management more useful to the people responsible for performance.
Our story
Sybil grew out of the work of managing real insurance portfolios.
In 2021, members of the founding team left Legal & General to establish Calibrant. The practical challenge was not simply producing actuarial analysis. It was delivering that insight repeatedly and turning it into decisions.
Sybil was developed to support that process. In 2022, Sybil Tech became a separate business focused on the software. Calibrant remains a sister company, with actuarial support available where clients need it.
That origin still shapes our approach: the platform must help people understand the business, act on what they learn and see whether their judgement holds up as experience emerges.

Clarity comes from understanding
how the pieces fit together
The people behind the platform
Actuarial depth, data expertise and software development, working together.
What we believe
People should be able to examine the assumptions behind a result and understand how a decision changes the outlook.
Insurance decisions need context, experience and commercial judgement. Technology should make that expertise more effective.
The value of portfolio management grows when teams return to the evidence, learn from the differences and refine their approach.
Let’s put it into practice
We’ll start with your business and explore whether Sybil is the right fit.
Book a demo