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Our team is comprised of experienced professionals in the fields of technology, insurance and reinsurance with each individual bringing in a wealth of specific knowledge. We work closely together and take an interdisciplinary, hands-on approach to each project.

Our Team

  • Sergey Grazhdankin

    CEO, Reinsurance & MGA Solutions

    Sergey started out insurance career in 2002. Since then he has held various positions in general insurance and reinsurance underwriting as well as reinsurance broking in Continental Europe and the London market. Having started in the large P&C projects department of an insurance company, he has gained broad technical know-how over several years with both Munich Re and Swiss Re in Germany, and on the broking side with Willis Global, Willis Re and JLT Re in London. Sergey is based in our Munich office and looks after GMBC strategy, business development and marketing.

  • Markus Posl

    MGA Solutions Director

    Markus joined the insurance industry in 1994. Since then, he has been working in reinsurance underwriting and client management and was also responsible for P&I as a centre of competence. After starting his career at Munich Re in the marine department, he took on numerous special assignments for global markets during his long-standing tenure with Munich Re and subsequently with Swiss Re as a senior marine underwriter. Markus heads our Munich office and is responsible for business development and sales.

  • Dr. Martin Brumberg

    CEO, Operations & Finance

    Martin is a mathematician who joined the reinsurance industry in 2007. He worked as treaty underwriter, as reinsurance manager of an insurance pool and as reinsurance broker in the Continental European and London markets. Martin started his career with Swiss Re as one of the Swiss Re Academy’s graduates. He is one of the founding partners and managing directors of GMBC responsible for operations and finance. Martin and his team are based in Hamburg and focus on administrative, operational and all other technical support for our clients.

  • Uwe Focht

    Head of Analytics & Underwriting

    Uwe started his career in the insurance industry in 2003 as a lecturer in insurance economics and reinsurance at the University of Hamburg. From 2007 he worked for Swiss Re underwriting Property and Casualty business in various markets across Europe and Asia. Before joining GMBC in February 2016, he was Swiss Re’s Head of Property Treaty Underwriting for China, based in Beijing. Uwe is one of the managing directors, based in Hamburg, with an overall responsibility for Analytics and Underwriting. He has a Diploma in Mathematics and Business Administration and a Ph.D. in Insurance Economics.

  • Ahmed Asi

    Trainee - Technology

  • Ariel Benkendorf

    Sales Specialist

  • Mascha Buxbaum-Parikova

    Technical Accountant

  • Elena-Lavinia Constantin

    Technical Accountant

  • Denis Davydov

    MGA Solutions Director

  • Niels Eggers

    System Administrator

  • Oles Getmann

    Software Developer

  • Fawad Khalegjar

    Financial Accountant

  • Stefanie Koch

    Managing Director, Delegated Underwriting Authority

  • Dennis Ratayczak

    System Administrator

  • Sergey Richter

    Software Developer

  • Damla Sahan

    Assistant to the Management

  • Benedikt Schmid

    Head of Finance

  • Austin Sorensen

    Business Analyst

  • Quan Xu

    Software Developer

Team Advisers

  • Robin Merttens

    Robin was at Heath Lambert in various senior management roles for twelve years before changing career in 2000 to found and build “e-Lloyd’s”. He was COO and later CEO of that business which pioneered the move to electronic placement of insurance in London. In the 13 years he was there, he built a reputation as a visionary with the ability to articulate and sell innovative services and technology. His unusual mix of experience comprises legal, procurement, M&A, insurance and technology. Based in London, his speciality is the launch and development of new innovative products and services to the insurance market.

  • Andreas Richter

    Andreas Richter is Director of the Institute for Risk Management and Insurance, Director of the Munich Risk and Insurance Center (MRIC), and holds the Chair in Risk and Insurance at Ludwig-Maximilians-Universitaet (LMU) in Munich. He is also a vice dean of the Munich School of Management at LMU Munich. Prior to joining the faculty at LMU in 2006, Andreas held positions at Illinois State University and the University of Hamburg, and in 1999 visited the University of Pennsylvania as a postdoctoral fellow. He earned his Ph.D. (1998) and his Habilitation (2002) from the University of Hamburg. Andreas serves on various advisory boards, including those of the German Federal Financial Supervisory Authority (BaFin) and the Risk and Insurance Research Center at National Chengchi University (Taipei). He has acted as an advisor and guest lecturer at the Chinese-German University College (CDHK) at Tongji University (Shanghai).