Tourismuspartner is a company that he founded together with Alexander Fritsch in 2010. Holger Sigmund owns 50% and works as a trainer, speaker and consultant. Tourismuspartner offers a wide Know How, Seminars and Workshops in Management of Guest Feedback, Communication, Online Reviews, Online Reputation and Direct Bookings.

The tourism consultancy COMPASS has been a partner at local, regional, national and international level for more than 15 years when it comes to strategy, processes and implementation of tourism projects. With the founding of Compass Tourismus Partner eG, the company expanded geographically, with offices in Cologne, on the Lower Rhine, in South Tyrol and Zurich and thematically, with extensive experience and broad tourism knowledge.

The Global Sustainable Tourism Council (GSTC) manages the global standards for sustainable travel and tourism (GSTC Criteria). Holger Sigmund successfully completed the Sustainable Tourism Training Programme (STTP) and was awarded the "Professional Certificate in Sustainable Tourism".

Green Destinations is the world's leading sustainability certification for destinations and one of only three GSTC accredited certification bodies for destinations. Holger Sigmund is representing Green Destinations in Switzerland and Liechtenstein and co-founded the German speaking network Green Destinations DACH Region. With the Good Travel Seal Green Destinations offer a practicable and an affordable certification for SME's.

Swisstainable is the sustainability programme of Switzerland Tourism. Holger Sigmund advises and supports Swiss businesses during the process and for further sustainable development.

Holger Sigmund is good at explaining, selecting methods that encourage active participation in seminars and workshops and designing the set-up of online & offline events. He provides operational support with his knowledge and experience or teaches the instruments and tools he uses in an online training.

The Alpine Garden Capsule Hotel will be developed in a prime location at Zurich Airport by the end of 2021, directly opposite Check-In 1. Holger Sigmund is shareholder and supports with his knowledge in distribution. The hotel will be built around the influencer and nature photographer Fabio Zingg and will offer 140 self-developed sleeping capsules, fine delicacies, good coffee and local beers, meeting rooms and a co-working area.