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Building Europe's next generation of category leaders.

Who we are

We are a European thematic private equity firm investing in growth mid-market companies where sustainability drives productivity and resilience.

Our vision

We founded MS+PARTNERS with a simple belief: the next generation of leaders will be built by companies aligning long-term purpose with performance. Across Europe, businesses embedding sustainability into how they operate are becoming more productive, more resilient and better positioned for durable growth — creating one of the defining investment opportunities of our time.

We partner with founder-led businesses in the growth mid-market at pivotal scaling moments, bringing institutional buyout discipline, thematic insight and long-term capital to help build enduring market leaders. Our role goes beyond investment — we work alongside entrepreneurs to strengthen governance, expand internationally and compound value over time.

We believe lasting success is rarely linear. It requires patience, consistency and a balance of humility and audacity. Through active ownership and long-term partnership, we aim to build a leading European investment firm connecting capital, expertise and entrepreneurial ambition to scale the businesses shaping tomorrow’s economy.

Featured Headlines

Check out the latest news from MS+PARTNERS

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MS+PARTNERS Announces First Close of Inaugural €300 Million Pan- European Private Equity Fund

Backed by the European Investment Fund, leading global institutions and prominent entrepreneurial families, MS+PARTNERS combines institutional private equity discipline with…
MS+PSeptember 1, 2026

MS+PARTNERS Invests in Maritime Robotics, a Global Leader in Maritime Drones and Autonomous Navigation Systems

MS+PARTNERS leads a €28 million growth investment round to accelerate Maritime Robotics’ international expansion and strengthen its position as a…
MS+PJune 14, 2026

In brief: Mustard Seed makes growth equity deal debut

The impact growth equity platform co-founded by KKR's former European impact lead has made its first investment. Link to article:…
MS+PJanuary 9, 2025

MS+Partners makes investment into ILERNA

Lleida/London/Zurich/Paris, December 2024 - Mustard Seed + Partners ("MS+Partners") is pleased to announce it has agreed to invest into ILERNA,…
MS+PDecember 24, 2024

Former KKR Europe exec returns with impact fund

Stanislas de Joussineau co-founded Mustard Seed + Partners a little over a year ago. Link to article: https://www.newprivatemarkets.com/former-kkr-europe-exec-returns-with-impact-fund/
MS+PNovember 26, 2024

Nick O’Donohoe reflects on the impact investing sector ahead of stepping down from BII

Our Advisory Board member Nick O'Donohoe, CEO of British International Investments, shared valuable insights on the impact investing sector evolution over…
MS+PSeptember 10, 2024