About Us – The Idea Behind EXOSHELL

EXOSHELL represents a new approach to the effective redevelopment of buildings: creating outdoor spaces, generating energy, and achieving environmental impact—all through an external, decoupled structure that functions independently of the existing building. Our mission is to make real estate future-proof and to help cities, municipalities, and states plan for a sustainable future.

The company behind EXOSHELL

EXOSHELL was developed by CLG GmbH—a company that provides comprehensive support for projects, from the initial idea through technical development to market launch and scaling. 


Drawing on this interdisciplinary expertise, CLG develops solutions that are technically mature, market-ready, and economically viable. EXOSHELL fits perfectly into this approach: as an innovative system that combines building services engineering, architecture, and sustainable transformation—and reimagines real estate with an eye toward the future.

Achieving More Together

EXOSHELL is ready for the market—and now needs strong partners. With patented technology, clear areas of application, and significant market potential, the concept is at the starting point of scalable development. We’re looking for investors who will join us on this journey and work together to build a system that’s environmentally friendly and economically sound. Those who become part of this effort will actively help shape the future of sustainable real estate.

EXOSHELL thrives on strong partnerships

The Fraunhofer Institute works closely with us as a development partner on research into our external support structure to establish a solid foundation, which is reflected in our patent.


As a member of the Bundesverband GebäudeGrün e. V. (BuGG), we also benefit from many years of experience, which is evident in the design of green roofs and facades as well as the added value they provide.

Shape the Future Now

Our vision thrives on strong connections. If you’d like to be part of our growth or are interested in collaborating with us, we’d be happy to discuss the next steps with you.