The start-up program by “OekoBusiness Wien” and “Impact Hub” to create a better, more sustainable city.

Do you have an idea creating a positive impact on the city of Vienna??
Our initiative “Re:Wien” supports entrepreneurs having ideas for a better, smarter, greener, healthier and more inclusive Vienna. The program is supported by the City of Vienna and benefits from a network of experts and 61 entrepreneurs who have already been supported in the last 6 years.

Deadline Oct 20, 18:00

What You Get


Through a two days bootcamp followed by 4 month of acceleration, RE:WIEN works with ventures to develop their ideas further into impactful, solid and sustainable businesses.


    Get input from professionals in the field and industry experts. Our expert pool is curated of OekoBuinsess Wien and Impact Hub Vienna.


    Cover topics like the basics of a sustainable business, marketing, sales, finance etc. hosted at Impact Hub Vienna.

  • EXPERTS SUPPORT by Business professionals and the city of Vienna officials

    As a group, the ventures and companies will visit social enterprises in Vienna to get exposure to different business models.

  • 4 month Impact Hub connect membership

    Get key connections to corporate and agency stakeholder groups.

Program Timeline

  • Application Deadline


  • Bootcamp

    24. - 25.10.2022

  • Acceleration Program Kick-Off


  • REWIEN Finale


How Does it Work

Take 3 min to fill in the idea registration form to apply for the program. We will check it for clarity and fit with the purpose of the program and give you feedback in up to 48h (working week).

The first stage of the program is the Bootcamp (more details below), where you will have the chance to develop your idea further and make a pitch deck on: Impact, Business and Team. You will have the chance to present your idea to an expert jury who will judge the fit to the program and suggest a certain support package for your venture.

It is a qualification not a selection process!

The Bootcamp will be followed by a 4 month acceleration program with 2 options of intensity:

1. Base:

  • 3 Modules: Impact / Business and Finance
  • Funding Opportunities Session
  • Coaching Clinics
  • 4 month Impact Hub connect membership

2. Deep-dive:

  • Base
  • + 2 extra Modules: Prototyping / Go-to-Market
  • + expert diagnostic
  • + individual coaching
  • + learning journey

Participation in the Bootcamp is mandatory for participation in the support program.

All ideas have to be submitted by October 20th, 2022 18:00 CET. The registrations will be reviewed for quality and fit to the program on a continuous basis. Every registration will receive feedback in up to 48h (Monday-Friday).

Due to space constraints we can accept a maximum of 40 participants during this round. When we reach 40 qualified registrations, you will be added to the waiting list. So, if you have an idea or already a business you want to take forward, be quick and register!

Bootcamp in Detail

Bring your idea to the RE-WIEN Bootcamp on 24th-25th of October at Impact Hub Vienna. We promise you inspiration, feedback, support and connection to partners, city officials, experts and entrepreneurs that already participated in the program.

Location: Impact Hub Vienna – Event space

Time: 24th of October 2022 – 13pm – 6:00pm

25th of October 2022 – 9:30am – 7pm + Networking snacks and drinks

The Bootcamp will be led by

Sarah Haas – Former Expert for Climate Action, Participation and Urban Transitions for the City of Vienna, founder of [sic!] – students’ innovation centre, former participant in Re-Wien and community Manager of Impact Hub Vienna and

Evelina Lundqvuist – Sustainable business development consultant, communicator and podcaster. Zero waste, circular economy, interculturality and antiracism advocate. Co-creator of the Zero Waste Business Model Canvas and MethodKit for Sustainable Organisations. Serial co-founder, co-creator and award-winning social entrepreneur.

The City of Vienna expert feedback team will be led by Dr. Thomas Hruschka und DI Bertram Häupler from Öko Business Wien.

Bootcamp Agenda:

October 24th
13:00 Why ideas for the city
13:30 Participants connection and ideas mapping
14:30 Entrepreneurial journey
15:00 Break
15:30 Impact Workout
17:30 Concluding Day 1
18:00 End
October 25th
9:30 Welcome
9:45 Business Workout
11:45 Break
12:00 Pitch Deck Workout
13:30 Lunch with experts and alumni
15:00 Feedback rounds
17:00 Break
17:30 90 seconds pitch
19:00 Networking time



Startups accelerated

  • We have received a great network and valuable contacts by participating in the RE:WIEN. Taking part in the program was definitely worth it!

    Cosimo Lippe, Sud & Satz
    Cosimo Lippe Founder, Sud & Satz
  • My team and I are proud to be part of the funding program RE:WIEN. The support from the professional coaches, the different workshops and the exchange with the other participants was extremely helpful. Our project got a lot of constructive feedback with which we could develop new approaches.

    Alexander Kampfhammer Co-founder, VALUE
  • RE:WIEN is a great opportunity to push your project or venture in your own pace. What I particularly liked was the flexibility of the program. This makes sure that you get support exactly where you need it.

    Nadine Moser Founder, i trau mi 

Program Ventures


2020 Alumni

2019 Alumni

2018 Alumni

March 2018 Alumni