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Key people at Drees & Sommer.
Drees & Sommer was founded in 1970 by Gerhard Drees (Founder) and Hans Sommer (Co-Founder).
Drees & Sommer provides comprehensive consulting, planning, and project management for real estate and infrastructure. The company integrates economic efficiency, sustainability, and digital processes, guiding clients through all project phases. Their core offering delivers future-oriented solutions by applying smart technologies and innovative approaches to complex development challenges.
Gerhard Drees and Hans Sommer founded Drees & Sommer in 1970 as a small engineering office in Stuttgart. Their insight addressed the growing need for independent expertise in construction and property development. Beginning as a modest three-person team, they aimed to provide comprehensive services, effectively merging technical planning with strategic project management.
Clients include public sector entities, private developers, and corporate organizations undertaking significant construction projects. Drees & Sommer's vision centers on developing sustainable projects with measurable environmental and economic impact, partnering with clients to shape a livable future through intelligent, responsible planning and execution.
Drees & Sommer was founded in 1970 by Gerhard Drees (Founder) and Hans Sommer (Co-Founder).
Key people at Drees & Sommer.
Drees & Sommer has 2 tracked investments across 1 company. The latest tracked deal is $19.8M Series B in aedifion in June 2025.
| Date | Company | Round | Lead Investor(s) | Co-Investor(s) |
|---|---|---|---|---|
| Jun 24, 2025 | aedifion | $19.8M Series B | Alice Besomi | Bauwens, Bitstone Capital, Hopp Family Office, Lartis, Momeni Digital Ventures, Phoenix Contact Innovation Ventures, World Fund |
| Jan 30, 2023 | aedifion | $13.1M Series A | Beyondbuild, TIM Schumacher, DR. Ing. Mark Windeknecht | Bauwens, Bitstone Capital, Hopp Family Office, Momeni Digital Ventures, Phoenix Contact Innovation Ventures, Dietmar Hopp |