Jean-Guillaume (JG) de Maneville

Investment Banker helping CEOs/Boards/Private Equity Funds | Senior Advisor | Corporate Finance | French but internationally mobile ! #Fintech#Greentech

France

About

I help companies secure financing, optimize their business models, and build strategic partnerships. Driven by innovation and growth, I collaborate with ambitious entrepreneurs to create, fund, and scale impactful tech ventures worldwide. Through Smart Banker Ltd, I advise Fintech, Greentech companies, and their investors on structuring transformative growth and aligning financial strategy with operational ambitions. My unique background: 25 years in corporate finance, including key roles at Société Générale and Natixis (capital markets, structured finance). Tech entrepreneur & investor: Co-founder of Unicraft VC (venture studio), Tomorrowstocks (Fintech platform), and Good Circle (impact investing). Bridging two worlds: I blend the rigor of investment banking with the pragmatic approach of an entrepreneur, delivering jargon-free solutions with measurable impact. #Fintech #Greentech #Fundraising #M&A #ScaleUp #ImpactInvesting

Experience

  • Founder & CEO at Smart Banker Ltd
    Feb 2025 - Present · 1 yr 6 mos

    • Provides strategic advisory services to align business models with market demands for Tech firms. • Secures and organizes financing from the right investors at the right time. • Develops new revenue streams and partnerships through effective business development strategies. . Invests in early stage Fintech

  • Certified Chair™ | Advisory Board Member at Le Collège du Dirigeant
    Jan 2026 - Present · 7 mos

    I specialize in supporting SME and mid-cap leaders as a Certified Chair™ by designing impactful Advisory Boards. • Foster collaboration among independent peers to enhance decision-making and leadership effectiveness. • Utilize a network of over 200 certified advisors to provide a comprehensive Advisory Board-as-a-Service model. • Strengthen organizational impact and secure long-term success through innovative advisory solutions.

  • Co-Founder and Investor at GoodCircle
    Aug 2022 - Present · 4 yrs

    La plateforme pour combiner performance durable et financière des entreprises https://www.good-circle.com/fr

  • Seed Investor at Jobs that makesense
    Mar 2020 - Present · 6 yrs 5 mos

    Jobs that makesense est la plateforme qui aide à trouver un emploi à impact positif.

  • Seed Investor at Prescriptive-FS
    May 2026 - Jul 2026 · 3 mos

    La plateforme s’appuie sur des modèles d’IA propriétaires et des données ouvertes pour améliorer significativement l’efficacité commerciale et la gestion de la relation client. Elle aide les banques et assureurs à générer des opportunités commerciales et à mieux gérer les risques de leurs clients et prospects PME.