Sponsors & Partners

Platinum Sponsors

ES EnviroSustain

ES EnviroSustain will host The 40 Percent Symposium 2018 in Berlin.  

ES EnviroSustain’s main concern – reflected by its name – is environment and sustainability. Since founded in 2001 by Birgit Memminger-Rieve PhD and Frank Burchardi the company has developed into a Europe-wide consulting firm for the real estate industry. Employed at the Frankfurt, Stuttgart, Berlin, and Flensburg branches, the interdisciplinary team of architects, constructional engineers, building services engineers, environmental engineers, and geologists work in the interest of international clients. 

The company offers extensive consulting services for existing and new buildings including technical and environmental due diligence as well as energy efficiency and sustainability of buildings. This encompasses energy audits, design and monitoring of energy efficiency measures as part of ISO 50001 energy management, project- and construction monitoring, Green Building certification with focus on LEED® and BREEAM and sustainability consulting on portfolio level including GRESB and Environmental Management approaches.

Read more about ES EnviroSustain

Over the past 15 years this has lead ES EnviroSustain to an impressive track record of green building certifications and due diligence across Europe with focus on existing commercial buildings.

To ensure a high level of quality for their clients and to share experiences with others ES is engaged with various organisations dealing with sustainability in the real estate sector. This allows us to maintain a high level of quality in consulting our clients, but also to enhance the available sustainability approaches and make them more appropriate for the demand of the real estate market.

ES Enviro Sustain is a member of the following organisations:

US Green Building Council

GRESB / Premier Partner

GGBA / German Green Building Association (ES is founding member), Dr. Birgit Memminger Rieve is one of the board members.

DIFNI / NSO for BREEAM In-use in Germany (ES is part of the advisory board)

DGNB / Deutsche Gesellschaft für Nachhaltiges Bauen


For further information, please visit the ES EnviroSustain website.

Speakers & Sponsor's Dinner Sponsor

WW+KN Legal

WW+KN legal is a high qualified, high engaged and fast responding law firm in all real estate, building design and construction law matters. We are highly focused on individual and personal counseling. Only if we realize our client´s needs, we are able to develop the best solutions. Therefore, all our lawyers fully understand and address corporate needs. 

Read more about WW+KN Legal

Prior to founding WW+KN legal in 2017 Dr. Hendrik Hunold was partner in of one of the German market leaders in real estate and construction law. Over the past 10 years Mr. Hunold has gained a strong national and local network. His team of lawyers has grown consistently ever since.

Besides the core consulting areas WW+KN legal is publishing in professional journals and is giving lectures concerning real estate and construction law. Since 2010 Mr. Hunold is teaching at Munich University of Applied Sciences and is authoring a law guidebook for architects.

WW+KN legal advises clients on national and European construction projects of any kind and any dimension. If required national and international taw affairs are covered by high-qualified tax and tax-law consultants of ww+kn.