About a-team Marketing Services
The knowledge platform for the financial technology industry

A-Team Insight Blogs

Societe Generale Securities Services Appoints New Head of Sub-Custody Network Management

Subscribe to our newsletter

Societe Generale Securities Services (SGSS) has appointed Mathilde Guérin as Head of Sub-Custody Network Management. Based in London and reporting directly to SGSS executive directors, she replaces Paola Deantoni, who will be taking on a new position within SGSS.

With over 18 years experience in the securities services industry in charge of project management and coordination, as well as client relationship management, Mathilde Guérin will be responsible for managing SGSS’ network of sub-custodians, delivering high quality solutions to respond to client requirements, specifically in terms of asset protection and market information and intelligence.

SGSS offers a complete range of local and global custody and trustee services which provide efficient and effective support to a clientele of financial intermediaries, collective fund managers and institutional investors. Clients thus have access to SGSS’ international network of custody services, covering 72 countries.

Mathilde Guérin is a graduate of the Ecole des Mines (Engineering School) in Saint-Etienne, France. She began her career at Societe Generale in 1991 and held various positions within the investment bank and the Custody Services Department, where she managed transversal studies and project coordination. She participated in the analysis of all IT and operational aspects of the SGSS acquisition of UniCredit’s securities services in 2005. She was then appointed programme manager for the migration of Pioneer Asset Management’s Luxembourg funds. Since 2008, Mathilde Guérin was Global Relationship Manager of Pioneer Asset Management.

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: Deploying regtech solutions for optimal compliance professional performance

Today’s atmosphere of heightened regulatory scrutiny is focusing attention on compliance departments and the tools available to mitigate the risk of regulatory censure. Much has been made of emerging regtech solutions’ ability to offer new capabilities, potentially changing the way compliance teams work. But what has been the true impact of regtech on the compliance...

BLOG

A-Team Group Announces Winners of the Data Management Insight Awards – USA 2026

A-Team Group today announced the winners of its annual Data Management Insight Awards – USA 2026, celebrating outstanding vendors, service providers, and consultancies delivering innovative data management solutions to North American capital markets. Now in its sixth year, the awards recognise both established market leaders and groundbreaking newcomers across more than 40 categories, including Best...

EVENT

AI in Data Management Summit New York City

Now in its second year, the AI in Data Management Summit NYC explores what changes when AI becomes part of the data management operating model.

GUIDE

Practicalities of Working with the Global LEI

This special report accompanies a webinar we held on the popular topic of The Practicalities of Working with the Global LEI, discussing the current thinking around best practices for entity identification and data management. You can register here to get immediate access to the Special Report.