re-connect

Zurich, January 1, 2025

We reconnect as re-x.

In January of this year, we took the next step: as three former colleagues at Amstein+Walthert, we joined forces to establish re-x AG – a boutique consulting firm dedicated to advancing solutions in the fields of sustainability, energy, and CO2-emissions.

Drawing on our shared experience and a combined track record of over two decades in diverse consulting roles, we unite our expertise to design and implement solutions that are sustainable, innovative, and efficient.

We partner with clients from the real estate, infrastructure, and engineering & construction sectors. Our advisory services address all scales – from individual buildings and development sites to entire portfolios and organizations – helping our clients integrate sustainability into the core of their services and operations.

We look forward to working with you to achieve your sustainability goals.

Christoph Dewald, Marc Grossmann & Joachim Wilhelm