Jean-Guillaume GUEX

Managing Director

Geneva Metropolitan Area

About

I operate at the intersection of investment strategy, leadership, and client relationships, with a focus on delivering disciplined performance and long-term value. My path from engineering and consulting into investment leadership, has shaped a pragmatic, analytical mindset to turn ideas into tangible results. I enjoy turning complexity into clear decisions and building structures that allow teams to perform at their best. I believe strong results come from trust, clarity, and collaboration. I aim to create an environment where people are empowered, ideas are challenged, and progress is shared.

Experience

  • JBG Capital ()
    • Managing Director
      Jun 2025 - Present · 1 yr 2 mos

      As Managing Director at JBG Capital, I focus on designing strategies that deliver sustainable, long-term results for our clients while overseeing all aspects of the firm’s operations. I am responsible for all investment decisions, ensuring our approach blends innovation, discipline, and rigorous analysis. I embody a modern, forward-thinking leadership style that is collaborative, entrepreneurial, and decisive. I value teamwork and open dialogue, empowering colleagues to contribute ideas and fostering inclusive decision-making. With a strong vision and adaptability, I drive innovation and actively seek opportunities that create long-term value, translating strategic objectives into clear, actionable plans. Building and nurturing trusted client relationships is central to my work, with a focus on transparency, alignment of interests, and long-term value creation. Leveraging technology and data-driven insights, I navigate complex global markets and identify differentiated opportunities across diverse economic environments. I also lead strategic growth initiatives, including the creation of new asset management products tailored for our clients.

    • Executive Manager
      Feb 2022 - Jun 2025 · 3 yrs 5 mos

      As Executive Manager at JBG Capital, I focused on strengthening the firm’s investment strategy while overseeing all operational aspects. My role involved developing and refining efficient processes, implementing robust risk management practices, and ensuring compliance with internal policies and regulatory requirements across investment and operational activities. I actively managed investment workflows, contributed to portfolio decision-making, and led initiatives to integrate technology and data-driven insights into operational processes, improving efficiency and reporting. I helped shaping the firm’s wealth management strategy and guiding key investment decisions. I also engaged with clients to align investment strategies with their objectives, supporting both relationship management and business development initiatives. This role bridged hands-on operational management with strategic oversight, providing a foundation for senior leadership responsibilities and the firm’s long-term growth.

    • Junior Relationship & Asset Manager
      Aug 2018 - Feb 2022 · 3 yrs 7 mos

      As Junior Relationship and Asset Manager at JBG Capital, I managed client relationships while driving business development through prospecting, networking, and deal sourcing. I executed the allocation of assets under management and took a proactive role in developing and optimizing operational processes, including automation and IT enhancements. This work helped improve efficiency, strengthen client service, and contribute to the firm’s strategic development. I developed investment workflows and the portfolio management system, optimizing operational performance to support the firm’s growth objectives. By integrating technology and data-driven insights, I improved decision-making, reporting, and overall operational effectiveness. This role allowed me to develop a comprehensive understanding of wealth management operations and strategy, laying the foundation for my future leadership responsibilities within the organization.

  • Consultant at Deloitte Switzerland
    Jun 2016 - Jul 2018 · 2 yrs 2 mos

    As a Consultant at Deloitte, I worked in the Financial Advisory department with a focus on Analytical Forensic Technology. I analyzed and structured large, complex data sets to support investigations, regulatory compliance, and financial crime matters, including the collection and examination of digital data across multiple sectors and jurisdictions. In my role as a Data Analyst, I validated and assessed requests from authorities, regulators, and former clients concerning historical documentation of liquidated foreign banks in Switzerland. I also contributed to the Legal Entity Identification (LEI) project, guiding clients through the process, testing digital platforms, proposing improvements, documenting systems, creating user guides, and training operators. Those roles strengthened my analytical, regulatory, and operational expertise, including risk assessment, compliance oversight, process optimization, and client advisory capabilities. Together, these experiences provided a solid foundation for managing complex operational workflows.

  • Business Analyst Intern at Venture Valuation AG
    Oct 2015 - Mar 2016 · 6 mos

    At Venture Valuation AG, I assisted in independent valuations of high-growth companies in life sciences, BioTech and MedTech industries. I carried out market research and data collection on companies, including business focus, technology, pipeline, categorization, and financial performance, to support both quantitative assessments and qualitative evaluations. I contributed to valuation reports by reviewing and drafting sections, ensuring accuracy and analytical rigor. Within the BiotechGate Database, I collected, updated, and searched for company, financial, and product information related to life sciences organizations. I performed monthly quality checks of data entries, prepared the Venture Valuation newsletter and Biotech Financing Summary, reviewed online customer requests, and provided responses or directed inquiries appropriately. Additionally, I carried out statistical analyses of industry trends and trained analyst personnel on database usage and data analysis techniques. This experience strengthened my analytical, research, and reporting skills, providing a foundation for informed investment decisions and data-driven insights applicable to asset management, wealth management, and private equity.

  • Engineer's Internship at Hôpital de la Tour
    Jul 2013 - Sep 2013 · 3 mos

    During my Engineer's Internship at Hôpital de la Tour, I gained practical exposure to various healthcare operations, including radiology, physiotherapy, cardio-respiratory therapy, angiography, operating room procedures, nuclear medicine, and hospital administration. This experience provided me with a broad understanding of healthcare workflows, technical applications, and operational processes, strengthening my analytical and observational skills in a professional medical environment.