Holistic buildings, holistic life:
We design for the future.
​
Regardless of one's perspective:
We merge design and sustainability.
​
Our climate. Your energy.
Being dedicated architects we are designing for the environment’s future: our projects are guided by holistic and sustainable goals.
We are guided by environmental awareness, gentle use of natural resources and fair, honest, transparent business principles. Throughout our daily life, within our company, as partners, and beyond.
For over 25 years we have been contributing to a future of clean energy. We develop your projects with an integration of photovoltaics.
We are united by our philosophies: distinctive, courageous approach and open mindedness combined with the endeavour to make way for changes and unbounded ideas. This is the only way to tackle the challenges we face due to the inexorable consequences being evoked by climate change.
​You are invited to profit through our projects and partnership!
Our innovative enterprise follows the principle of comprehensive sustainability.
​
We offer a complete all-round service, realizing your project with seamless steps and customized constructions, beginning with the planning stages through to the final connection of solar energy to feed the electric utility network.
![HT Portrait_09_300 dpi.jpg](https://static.wixstatic.com/media/5673ac_2373dbd56e934d71916746021863b821~mv2.jpg/v1/crop/x_582,y_0,w_1551,h_2362/fill/w_355,h_534,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/HT%20Portrait_09_300%20dpi.jpg)
Hadi Tehrani
Shareholder
Architect, designer
& Visionary
"Holistic determined
our ideas, the shape and connection of all parts!"
![Christoph 07022023.jpg](https://static.wixstatic.com/media/8c4ec1_a9ad26147da64e19af25b2391aa8f307~mv2.jpg/v1/crop/x_257,y_0,w_511,h_768/fill/w_89,h_133,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Christoph%2007022023.jpg)
Christoph Waser
HTS Switzerland
Partner
![Christian Jahnke-CFO-HTS Deutschland.jpg](https://static.wixstatic.com/media/8c4ec1_545f7e87b37e425a888a9c15d094c9d7~mv2.jpg/v1/crop/x_6,y_0,w_3989,h_6000/fill/w_89,h_133,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Christian%20Jahnke-CFO-HTS%20Deutschland.jpg)
Christian Jahnke
COO
HTS Germany
![Sarah Hennings-Verkaufmanagerin-HTS Deutschland.jpg](https://static.wixstatic.com/media/8c4ec1_ba9808548c0f4dccb640371b287160d5~mv2.jpg/v1/crop/x_6,y_0,w_3989,h_6000/fill/w_89,h_133,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Sarah%20Hennings-Verkaufmanagerin-HTS%20Deutschland.jpg)
Sarah Henningsen
Sales Manager
HTS Germany
![CB-Bild.jpg](https://static.wixstatic.com/media/8c4ec1_3b1560d0607a4db3a782e3a0204920d7~mv2.jpg/v1/crop/x_172,y_0,w_2680,h_4032/fill/w_89,h_134,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/CB-Bild.jpg)
Christian Bartelheimer
CCO & Partner
![Dusan Ivancevic A-4970.jpg](https://static.wixstatic.com/media/8c4ec1_f9d0812235b648a7b844bddfe472a68a~mv2.jpg/v1/fill/w_77,h_116,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Dusan%20Ivancevic%20A-4970.jpg)
Dusan Ivancevic
Office Management
HTS Germany
![Payam.07.02.2023.jpg](https://static.wixstatic.com/media/8c4ec1_5190b6b049014f66a18fc27ecbf75375~mv2.jpg/v1/crop/x_1,y_0,w_681,h_1024/fill/w_355,h_534,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/Payam_07_02_2023.jpg)
Payam Hazin
Shareholder & Managing Director
Engineer, coordinator
"A journey of 1000
Miles starts with
the first step!"
![Sam Tehranchi-HTS Kanada.jpg](https://static.wixstatic.com/media/8c4ec1_2acd719ca70d4452a33c958cfec63e68~mv2.jpg/v1/crop/x_42,y_0,w_398,h_599/fill/w_89,h_134,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Sam%20Tehranchi-HTS%20Kanada.jpg)
Sam Tehranchi
HTS Canada
Partner
![Christopher Albien-Rechtsberater-HTS Deutschland.jpg](https://static.wixstatic.com/media/8c4ec1_43b7ea129f664e31ad8f686c6a57121d~mv2.jpg/v1/crop/x_6,y_0,w_3989,h_6000/fill/w_89,h_133,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Christopher%20Albien-Rechtsberater-HTS%20Deutschland.jpg)
Christopher Albien
legal advisor
HTS Germany
![Dietmar Vollmer-Energieberater-W&P Berlin.jpg](https://static.wixstatic.com/media/8c4ec1_addda49307004b2e844a33391a712e9e~mv2.jpg/v1/crop/x_6,y_0,w_3989,h_6000/fill/w_89,h_133,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Dietmar%20Vollmer-Energieberater-W%26P%20Berlin.jpg)
Dietmar Boder
BSE-Building Services Equipment
W&P Germany
![IMG_8672.jpg](https://static.wixstatic.com/media/8c4ec1_137ea602552447e980cca1167b4a373c~mv2.jpg/v1/crop/x_172,y_0,w_2680,h_4032/fill/w_89,h_134,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/IMG_8672.jpg)
Anne Sofie Vogelsang
Sales Partner
Ramforth Immobilien GmbH
![](https://static.wixstatic.com/media/8c4ec1_c972d11d28a94276b3367d94128f5813~mv2.jpeg/v1/fill/w_87,h_116,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/8c4ec1_c972d11d28a94276b3367d94128f5813~mv2.jpeg)
Joel Vogl
Hydrogen Systems Expert
CEO
INFENER
![Marcel Lolk-Energieberater-HTS Deutschland.jpg](https://static.wixstatic.com/media/8c4ec1_05979dcba0114738a20ce7d8307855aa~mv2.jpg/v1/crop/x_6,y_0,w_3989,h_6000/fill/w_89,h_133,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Marcel%20Lolk-Energieberater-HTS%20Deutschland.jpg)