Registered Office:

Efficient Scale GmbH

Sandstr. 33

80335 Munich



Managing Directors:

Niklas Riegger

Stefan Spannagl

Pascal Cirelli

E-Mail: de-questions[at]efficientscale[dot]com


Entered in the commercial register at the county court, Munich, under HRB 244832
VAT ID number: DE 321 871 925


Responsible for content designed for journalistic and editorial offers the sense of § 55 RStV (Rundfunkstaatsvertrag):

Niklas Riegger


Platform of the EU Commission for online dispute resolution (ODR platform):




Liability for Contents

The contents of these pages were created with great care. We can however not guarantee the accuracy, completeness or timeliness of the contents.

As service providers we are liable for our own contents on these pages under the general laws, in accordance with Section 7 paragraph 1 German Telemedia Act (TMG). According to Sections 8 to 10 TMG we are not obligated as a service provider to monitor transmitted or stored external information, or to investigate circumstances that indicate illegal activity. Obligations to remove or block access to information under the general laws remain unaffected. However, a relevant liability is only possible from the date of knowledge of a specific infringement. Upon notification of such violations, we will remove the content immediately.

Liability for Links

Our website contains links to external websites over whose contents we have no control. Therefore, we also cannot accept any responsibility for these external content. The respective provider or operator is always responsible for the contents of any linked websites. The linked websites are checked at the time of linking for possible violations of the law. No illegal contents were identifiable at the time of linking. A permanent monitoring of the contents of the linked pages, without concrete evidence of a violation, would not reasonable. Upon notification of violations, we will remove such links immediately.


The contents and works provided on these pages created by the website operators are subject to German copyright law. Third party contributions are specified as such. Any reproduction, modification, distribution or any kind of exploitation outside the limits of the copyright require the written consent of its respective author or creator. Downloads and copies are permitted only for private, non-commercial use.

The operators of this website make every effort to observe the copyrights of others, or to use their own or license free works.


(c) 2019 Copyright Efficient Scale GmbH, Munich, Germany