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04/08/2026
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natureOffice Editorial Team
Under CERTANIA Sustainability, DFGE, natureOffice and Terra Institute bundle their expertise for joint customer projects – from reliable ESG and CO₂ data to strategy, climate protection and organisational transformation.
In this post
From robust data to implementation
Bundled ESG expertise for companies
Customer benefits in focus: Maximum depth, breadth and security
Munich, Wiesbaden, Brixen – 4 August 2026: The companies DFGE, natureOffice and Terra Institute, united under "CERTANIA Sustainability", are moving even closer together in the future. By bundling their expertise under the joint umbrella brand CERTANIA Sustainability, a new, powerful full-service network is being created that combines data, climate expertise, strategy and transformation into holistic sustainability solutions for companies.
The three independent specialists will work more closely together in joint client projects in the future, combining scientific foundation, practice-proven solutions and organisational transformation.
Stronger together
In the new alliance, the ESG solution offerings of the three established specialists are being brought together to seamlessly cover all task areas of corporate sustainability. The spectrum ranges from strategic consulting, complex calculations and international ratings to effective decarbonisation, tailored climate protection contributions and operational implementation.
Customers receive coordinated access to the expertise of all three companies. Tailored teams of experts are put together for joint tasks. At the same time, the companies remain active in the market independently while systematically pooling their expertise and resources.
Voices from the network
Dr.-Ing. Thomas Fleissner, Managing Director of DFGE, emphasises the opportunity to further develop Sustainability Intelligence in conjunction with larger teams and concentrated expertise – especially for complex ESG challenges that demand both scientific depth and practical implementation at the same time.
Andreas Weckwert, Managing Director of natureOffice, describes the shared aspiration as follows: What companies do in terms of climate protection should be self-explanatory – with reliable data, transparent methodology, and solutions that work in everyday business operations.
For the Terra Institute, the focus is on strategy, cultural change, leadership, and change processes. CERTANIA complements these perspectives with an international network of specialised companies for quality, certification, and compliance.
A quick question in the meantime
01
What data and objectives do companies need as a common basis?
02
How are strategy, software and consulting effectively combined?
03
How can sustainability remain organisationally feasible?
04
What expertise is needed precisely when tasks become complex?
Customer benefit
Customers across all industries benefit from this close cooperation on all levels:
All ESG subject areas from a single source – from strategy and calculation to Net-Zero and certification.
Scalable solutions for medium-sized businesses and global players.
Tailor-made teams from the three companies for shared tasks.
Stability and security through the CERTANIA network with specialised partners across Europe.
The next question
DFGE contributes sustainability intelligence, software and consulting for ESG requirements. natureOffice combines robust CO₂ accounting, proven software and its own climate protection projects. The Terra Institute complements this with strategy, cultural change, leadership and change management.
Together, they form an alliance that can support companies from a solid database right through to genuine transformation.
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