Active, entrepreneurial minority shareholder

Since 2011, we make medium to long-term minority stake investments to support the development of profitable companies, seeking to accelerate their growth through innovation, external growth and/or international expansion.

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Are you looking for minority investors? Don't hesitate to tell us what you need

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Investing in 1 to 2 companies per year to build a portfolio of 15 to 20 holdings

€ 30-50 M
Private (100-300M/€) equity value
Target companies
Profitable SMEs
Sustainable growth sector
Usually Western Europe


Renewable energies


  • Leader in Italy, supplying "Premium" and 100% organic jams (Fior di Frutta) and spreads (Nocciolata)

    More info


  • Spinoff from Empa and ETH Zurich, the company develops intelligent bed systems for the treatment and prevention of ulcers

    More info
  • Acteon manufactures and markets dental equipment and is the world leader in the production of intra-oral and ultrasound cameras in a growing market

    More info
  • French leader of homecare services for elderly or handicaped persons

    More info
  • French leader providing support solutions for health facilities and across the full patient medical journey

    More info

Services / Industry

  • Leader of innovative enterprise software solutions based on SharePoint Microsoft technologies

    More info
  • Global provider of Earth monitoring and surveillance solutions to understand and protect our planet, but also to manage its resources sustainably.

    More info
  • High-end manufacturer of mechatronic components

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  • Developer and operator of coliving and coworking real estate projects

    more info


  • International bilingual school (French-English) with 600 students aged 3 to 18 representing 45 nationalities

    more info
  • Swiss group of private day care with 7 sites, 6 of which are in French-speaking Switzerland. Innovative concept based on nature, language, neuroscience and parent support

    more info

Sold Investments

Selected sold investments

  • Developer of photovoltaic power stations

  • CoorpAcademy develops and produces MOOC (Massive Open Online Courses) solutions for corporates

  • Marketing of scaffolding equipment

  • A group of famous Parisian "Grandes Brasseries"

  • Psychiatry and psychotherapy day center

  • Wind farms in southern Europe, with a generating capacity of 194 MW

  • Biometric authentification solutions

  • The 76 MW wind farm in southern Sweden - one of the best areas for onshore wind power in Europe

  • Management of multiresort ski passes

  • Specialising in renewable energies and more particularly in the production of charcoal, green electricity and heat


A team of professionals with diverse and complementary backgrounds selects and supports companies

Sébastien Beth

Sébastien Beth

CEO, S.I.GN Partenaires SA, Director, Private Equity Department
Jean-Philippe Carvaillo

Jean-Philippe Carvaillo

Associate Director Private Equity Direct, Head of Private Debt
Benoit Junique

Benoit Junique

Private Equity Manager
Dorothée François

Dorothée François

Senior Analyst Market Intelligence
Julien Leclerc

Julien Leclerc

Private Equity Analyst