Seyna at Argus Assurances Affinitaires 2026
On 12 March, Stephen Leguillon, CEO of Seyna, took part in a panel discussion organised by L’Argus de l’Assurance at Comet Place des Victoires, alongside Sara Fert, Head of Affinity Solutions at WTW France.
Seyna at Argus Assurances Affinitaires
On 12 March, Stephen Leguillon, CEO of Seyna, took part in a panel discussion organised by L’Argus de l’Assurance at Comet Place des Victoires, alongside Sara Fert, Head of Affinity Solutions at WTW France.
Topic: partnerships between large corporates and insurtechs, and what truly makes them sustainable.
A partnership that cannot be improvised
The discussion was built around a concrete case: Vign’Protect, a parametric insurance product co-developed by WTW and Seyna for winegrowers, covering frost and downy mildew through weather-based indices. An innovative product in a challenging market, agricultural climate risks, where risk carriers are becoming increasingly scarce.
This partnership perfectly illustrates what Seyna has stood for from the start: new players are not here to replace established ones, but to unlock what they cannot achieve alone, due to limited technological bandwidth or the ability to iterate quickly.
“To respond to a tender, improve a client interface or launch an innovation, having the support of external digital partners has become essential.”
(Sara Fert, WTW)
What Seyna brings in practice
In this project, Seyna played its role as a full-stack insurer: pricing design based on weather data, technological integration for parametric claims, and the deployment of Seyna JUMP, the service that enables brokers to launch new offers quickly without relying on their own IT.
What did WTW bring? Climate and agricultural expertise built over 40 years in the market, and above all, distribution power through strong connections with banking networks and agricultural cooperatives.
It is this complementarity, not just a simple addition of capabilities, that makes the partnership robust.
Transparency and value sharing as a structural choice
On the often-sensitive topic of value sharing between insurers and distributors, Stephen Leguillon advocated a straightforward approach: full transparency on financial performance, with results shared monthly with broker partners.
“Once everyone knows how much the other has made, the conversation becomes much simpler.”
This is not a commercial gesture. It is a structural choice that reflects Seyna’s conviction: the best partnerships are built on a shared vision of profitability.
What this says about the market
This type of collaboration, bringing together a large international broker and a mature insurtech insurer, provides a concrete response to the current challenges of the affinity insurance market: faster innovation cycles, increasing climate risk complexity, and pressure on margins.
It also confirms that the question is no longer “insurtech or incumbent?” but rather “how do they work together, and under what conditions?”.
Stephen Leguillon’s answer was clear: strong strategic sponsorship at the highest level, a cross-functional project lead, and sufficient scale on both sides to make the partnership credible.
