Do you have an idea to make Vienna an even better place to live? Do you want to simultaneously try to establish a sustainable (business) model and get organized?

RE:WIEN supports start-ups/ventures that develop new solutions and try to create a positive impact on society (social/environmental impact). In an intense 6 months process, RE:WIEN works with ventures to develop their ideas further, establish smart and resource-efficient processes and build strong and sustainable businesses operating on the market.
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Who is it for?

Ventures, start-ups and initiatives in the prototype stage based in Vienna, that are less than 3 years old, that work on an innovative product or service with a great market potential. Working with topics like:
  • Local value chain: promotion of local, eco-social production
  • Concepts for greening and cooling the city (avoiding heat islands)
  • Food waste, food production

How does it work?



Online application

The application phase is currently closed. Please get in touch if you want to stay posted for future calls.


Selection by a judging panel

A judging panel, consisting of experts in the fields of sustainability, representatives from the start-up sector, as well as the partnering organisations OekoBusiness Wien and Impact Hub Vienna, will select the most promising ideas.


Kick-off Event

The program starts with an all-day workshop on April 19th, 2018 with a kick-off event for all selected ventures.



All selected ventures are granted access to extensive accelerate support, business workshops, trainings and more.RE:WIEN has a value of Euro 3.000,- and is provided by OekoBusiness Wien.

The 6 months acceleration support includes:

  • Business Coaching and process guidance provided by Impact Hub Vienna;
  • Individual advice provided by experts in the field, industry experts and professionals. The expert pool is curated by OekoBusiness Wien and Impact Hub Vienna;
  • Business trainings and workshops covering relevant topics: basics of sustainable business, marketing, sales, finance etc. hosted at Impact Hub Vienna;
  • Access to various network contacts and to corporate, agency and stakeholder groups.

Additional Benefits

Participants get access to a moderated online forum, visibility through (social) media and press activities and have access to the broad networks of OekoBusiness Wien and Impact Hub. All selected participants will be presented at a final, public event and awarded by OekoBusiness Wien.

Who is behind the program?


Enabled by


OekoBusiness Wien was launched in 1998 by the Municipal Department for Environmental Protection on behalf of the Vienna City Administration, with the purpose to help enterprises generate "green and clean" profits through ecological management practices that benefit both the environment and the enterprises, ensuring high quality and financial benefits in each company. OekoBusiness Wien offers a number of different program modules for large and small enterprises in a variety of industries.

Due to professional support, workshops and access to relevant grants the aim of OekoBusiness Wien to improve the competitive position of Viennese businesses through more efficient use of resources (making full use of innovative potentials and cost saving opportunities), sustaining employment over the medium term, could be achieved.


Hosted by

Impact Hub Vienna is Austria's largest impact innovation lab. 1600m2 of co-working space in Vienna’s 7th district offer a place for start-ups, programs, workshops and events. As part of the international Impact Hub Network members have access to a growing community of more than 15.000 members with over 100 locations on 5 continents. RE:WIEN is one of the renowned acceleration programs of Impact Hub Vienna through which impact ventures receive support from finding the right idea for a venture to securing investments and scaling their businesses globally.
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Fitico Sportswear is a fair sportswear fashion label. They produce sportswear out of recycled fishernets. Fitico's clothing is developed and designed in Austria and produced under fair conditions and wages in Portugal.
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Sud & Satz is recycling used coffee brew and turn it into an organic fertilizer. “Coffe2Grow - the Melange for the garden”.

RE:WIEN Alumni


March 2017


May 2016


March 2016