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    Sienna Investment Managers

    Paris, FranceFounded 2013
    www.sienna-im.comLinkedIn
    Biotech & Life SciencesHealthcareClimate & EnergyDefense & Space

    Sienna Investment Managers (formerly Sienna Capital) is a pan-European multi-asset manager and the alternative investment platform of Groupe Bruxelles Lambert (GBL). It invests across private equity, private credit, real estate, and listed assets, focusing on sustainable finance, biodiversity, and European defense.

    Their most common stage is series-c (50% of deals). Average disclosed round size is $55.9M (across 9 rounds with reported amounts).

    Find people at Sienna Investment Managers on Goldilocks AI

    Portfolio

    9

    Fund Size

    —

    Top Stage

    Series C

    Last 12 Mo

    0

    Team

    Béatrice de Meaux-Becdelièvre

    Béatrice de Meaux-Becdelièvre

    Deputy Managing Director, Private Credit

    Fabrice Rossary

    Fabrice Rossary

    Managing Director, Private Credit - President of Sienna AM France

    Jean-Baptiste Lagier

    Jean-Baptiste Lagier

    Director of Marketing, Strategy & Transformation

    Véronique de Kersaint-Gilly

    Véronique de Kersaint-Gilly

    Human Ressources Director

    Cécile Haaser

    Cécile Haaser

    Head of Finance, IT & Operations

    Thierry Vallière

    Thierry Vallière

    Executive Board

    HT

    Henry Timmis

    Co-Managing Director

    OV

    Olivier Veeneman

    Managing Director Benelux

    AK

    Abraham Kalman Schreiber

    Principal

    SO

    Sean O'Shea

    Managing Principal

    SR

    Steven Rosa

    Analyst

    JH

    Jeong Ho Lee

    Investment Manager

    Portfolio Breakdown

    Stage Distribution

    Sector Distribution

    Investment Activity

    DealsAvg Round Size

    Portfolio

    12 investments
    CompanyRoundAmountDate
    Seemplicity logoSeemplicitySeries B$50MAug 2025
    Dustphotonics logoDustphotonicsSeries B$24MFeb 2024
    IBEX logoIBEXSeries C$55MSep 2023
    Incredo logoIncredoSeries C$30MMay 2023
    Hourly logoHourlySeries A$32MNov 2022
    SStreetteam Software LimitedSeries C$150MMay 2022
    Pollen logoPollenSeries C—Apr 2022
    Pollen logoPollenSeries C$60MOct 2020
    Pollen logoPollenSeries C$77.5MOct 2019
    Dustphotonics logoDustphotonicsSeries B$25MSep 2019
    Iceberg Data Lab logoIceberg Data LabSeries A——
    Keon logoKeonUnknown——

    Top Co-Investors

    Northzone4 shared
    Kindred Ventures4 shared
    Backed VC3 shared
    S Capital VC2 shared
    Glilot Capital Partners2 shared
    XYZ Venture Capital2 shared
    Molten Ventures2 shared
    Atreides Management2 shared
    Exor Ventures2 shared
    Greenfield Partners2 shared
    J-Ventures1 shared
    Inovia Capital1 shared
    MS&AD Ventures1 shared
    Vintage Investment Partners1 shared
    aMoon1 shared
    Octopus Ventures1 shared
    83North1 shared
    Planven Entrepreneur Ventures1 shared
    Dell Technologies Capital1 shared
    Atlantic Bridge1 shared

    Last updated: 20 October 2026