Programme of the SCHUMANN Conference 2026

With a doctorate in business informatics, he managed the development of business areas as well as marketing and sales for the business unit Industry & Trade.

Since January 2023, Dr. Stefan Gröger has been responsible for the sales management of the business units Industry & Trade, Financial Services and Credit & Surety in his role as Commercial Director and member of the Executive Board at SCHUMANN.

Rainer Pietschmann is Head of Business Development, Product Management & Marketing at MLF Mercator-Leasing. He drives business development through new product lines, efficiency initiatives and customer‑centric solutions. Previously, he held senior roles in sales, credit and contract management, as well as major IT transformation projects. With more than 20 years of experience in leasing, finance and digitalization, he combines strategic vision with hands‑on execution.

Dr David Beier has been Vice President of Credit Risk at the SEFE Group since 2023, where he is responsible for key risk management functions. Prior to this, he worked at WINGAS as Head of the Risk and Mid-Office Department, Senior Analyst for Operational Risk and Senior Analyst for Financial Market Regulation. From 2018 to 2019, he served as interim Head of Compliance for Financial Market Regulation at the GPG Group (GM&T). He began his career in 2008 as a Credit Risk Analyst at WINGAS, having previously worked as a bank clerk at Deutsche Kreditbank AG. He obtained his PhD following a Master’s degree in Economics and a degree in Economics from the University of Kassel, where he worked as a research assistant from 2004 to 2008.

Senior Treasurer & Global Head of Credit Management at Swiss Steel Group with over 15 years of experience in international manufacturing industries (steel and aluminium). His focus lies on credit risk and cash management, the development of credit policies, and the optimization of working capital and cash flow structures. His areas of expertise include the implementation of credit management systems (ETCM), the management of trade credit insurance programs, and structured financing solutions such as ABS. With additional experience in commercial roles, he brings a comprehensive understanding of the industrial value chain to credit and cash management.

Sven Coels has more than 13 years of experience in credit insurance. As Senior Credit Underwriter his responsibilities included the extensive credit rating analysis of companies in Germany and abroad.

In recent years Sven was responsible for the credit rating and credit management of national and international key accounts with Atradius Kreditversicherung. This work included optimizing credit management, conducting credit audits, and managing portfolios. He also played a sales support role in the acquisition and implementation of new customers.

Thanks to his analytical skills and international experience Sven is excellently equipped to be able to support km credit consulting gmbh customers with issues relating to credit management.

Marinko Prljic advises and supports industrial and trading companies in strengthening their credit management processes - from business partner onboarding to KYC checks and credit limit authorisation.

After studying business administration at the Georg-August University in Göttingen, he joined SCHUMANN, where he supports companies in implementing the credit management software CAM.

Tobias Nießner holds a PhD in Business Information Systems from the Georg-August University of Göttingen. He studied mathematics and business information systems with a focus on data science. During his PhD, he worked on risk use cases in accounts receivable management.

He joined SCHUMANN in 2023 as Product Owner to enable the product landscape with AI capabilities

Frank Liebold has been working for Atradius since May 2014. Under his leadership, Atradius has successfully established itself as number 2 in the German credit insurance market. In his role, he is responsible for strategically important sales areas – from product development and marketing to all target-group-specific sales units, the Customer Service Center, and compliance topics.

With a degree in business administration, Frank Liebold brings around 40 years of experience in the credit insurance industry. Before joining Atradius, he held several management positions at Euler Hermes, now Allianz Trade.

Frank Liebold is also a long-standing member of the German Insurance Association (Gesamtverband der Deutschen Versicherungswirtschaft e.V.).

Jens Marienfeld is Broker & Partner Manager at Nexus Trade Credit, with a focus on building and expanding international broker networks across Europe. Following roles at Creditreform and Coface, he is currently responsible at Nexus for strengthening strategic broker relationships and driving new business initiatives, including product development in structured credit and top-up solutions. His work combines market insight, strong relationship management and a hands-on approach to executing international growth strategies.

As Director at SCHUMANN International Services Limited Lara Biermann is advising and supporting international credit risk insurer and surety bond provider in digitizing and automating their risk and business process management. 
 

She studied business administration focused on finance, accounting and taxes and supervises international credit and surety insurance companies while implementing CAM Credit & Surety.

After completing a master’s degree in economics, Richard Wulff started his career in 1989 as trade credit insurance underwriting manager and reinsurance director of NCM (a precursor of Atradius) in his native country, the Netherlands. He founded a reinsurance captive for the company in Ireland prior to moving on to Munich Re in Germany.

At Munich Re, he managed the non-European credit, surety and political risk reinsurance department until 2008. He then moved to India to become chief underwriting officer of HDFC-ERGO Insurance Company in India, a general lines insurance business.

Richard subsequently became group general manager, heading up the world-wide credit lines at QBE Insurance in Australia, before moving to Hong Kong in that role.

He returned to Holland in 2017 to found RW Consulting, a consultancy company for trade credit insurance, surety and political risk (re)insurance. In February 2021, Richard joined the International Credit Insurance and Surety Association (ICISA), an association with which Richard has been actively involved throughout his career in trade credit insurance, surety and political risk insurance, where he currently holds the title of executive director.

Over the last 20 years, Matthias Sandfort has held various director-level roles in the banking industry. Before joining Tokio Marine HCC (TMHCC) in 2023, Matthias was working for Corestate Bank, where he spent the last five years as Managing Director. At TMHCC, Matthias is responsible for Surety business in Germany and Austria.

Matthias gained significant practice in leading and managing international transaction-teams in cross-functional and cross-cultural environments. He has good mentoring skills with sound knowledge of loan and security documentation / debt capital market products and all aspects of closing a transaction. He had country responsibility for Central and Western European Countries and served as head of Head of an international restructuring and workout department.

Mike is an innovative, entrepreneurial Chartered Director with a strong track record of creating and growing businesses across Europe, USA and emerging markets.

Mike has 39 years’ experience in trade credit and political risk insurance, as well as in trade finance. He has been at the forefront of innovation in the industry and has been active in the Dutch and German markets as well as the UK and the US. He was a founder and CEO of trade credit insurer Equinox Global Limited.

Mike’s recent activities include being a director at Nexus Trade Credit, a consultant at Charles Taylor Adjusting, a director of a motor insurance MGA; providing advice to the Irish Government on credit insurance, and acting as Deputy Chair of the London Handel Festival (of classical music).

Mike recently became a Chartered Director after studying with the Irish Institute of Directors.