Céleste Management SA is a single family office based in Geneva, Switzerland. Since its founding, the firm has managed private wealth and investments on behalf of a single family. The team is led by CEO Dimitri Boulanger and Private Equity Investment Manager Jules Bertrand. While public records once described a general interest in technology and healthcare IT, more recent industry analysis shows a focused strategy in the clean energy sector. Operating through a compact team of investment professionals, the office combines in-house research with external advisors to build long-term portfolios.
The office targets early-stage opportunities at the seed and Series A stages, primarily in France, Italy and Austria, and occasionally extends to broader European markets. It pursues both direct equity stakes and fund commitments across sectors including technology, biotech, medtech and manufacturing, targeting emerging trends in each area. Recent research using PitchBook data identifies the firm as one of the leading family investors in European clean tech, reflecting a strong orientation toward energy transition and sustainable infrastructure. Funding rounds typically range from seed to Series A, with ticket sizes suited to early-stage ventures.
Confirmed investments demonstrate this direction. Hello Watt develops a digital platform that helps households reduce energy bills and improve efficiency through usage monitoring and provider comparisons. Caeli Énergie designs low-carbon air conditioning equipment featuring advanced heat exchange systems. TRYON Environnement offers organic waste treatment solutions that fit within circular economy models. Ultrawatt advances urban architecture projects using modern energy solutions. Mob-Energy delivers mobile charging robots for electric vehicles, directly supporting battery technology adoption.
