REDTOWER is a Vienna-based corporate finance and strategy advisory. It is deliberately
small. The person you meet is the person who does the work.
Stefan Nolte began in investment banking — M&A at Nomura in Frankfurt and Erste
Group in Vienna, then as an associate at MP Corporate Finance — before joining
i5invest as Executive Director, leading tech M&A mandates across deep-tech, IoT and
health-tech. That period covers the transaction record above: buy- and sell-side,
cross-border, from long list to signed SPA.
The operating half matters more. He is a co-founder of SALZSTROM, a Vienna sodium-ion
energy storage company. Before that he was CFO of nymea from 2016 through its acquisition by
chargebyte in 2024, CFO at Solabolic, and VP of Strategy and Global Head
of IoT at the Marantec Group — a 640-person German manufacturer — where he led
the US market entry and grew the IoT business tenfold in its first year. He has mentored at
the Global Incubator Network since 2017.
The combination is the point: financing plans that survive contact with an operating
business, and operating decisions that hold up in a data room. I take mandates selectively. Engagements typically run from financing strategy through to execution, and
often continue as an interim finance function once the round has closed. Where specialist
capacity is needed — legal, tax, technical due diligence — we work with an
established network rather than staffing a team you did not ask for.
Milestones
- 2024SALZSTROM — co-founder€2.2m arranged ahead of the seed round.
- 2024nymea acquired by chargebyteCFO from 2016 through to the exit.
- 2021–2023Marantec Group — VP Strategy, Global Head of IoTGerman hidden champion, 640 employees. Led the US market entry; IoT business grew tenfold in its first year.
- 2019i5invest — Executive Director, Tech M&ADeep-tech, IoT and health-tech mandates. Over €50m arranged for my own startups in 2021.
- 2017Global Incubator Network — mentorSeven goAustria batches supported into the European market.
- 2016nymea — CFOIoT software. More than €3m raised across several rounds.
- 2015Solabolic — CFOConcentrated solar power. Financing rounds through to an eight-figure valuation in 2023.
- 2014REDTOWER foundedCorporate finance advisory and interim management, Vienna.
- 2013–2014MP Corporate Finance — Associate, M&ACross-border buy- and sell-side mandates in automotive tech and packaging.
- 2011–2012Nomura, Erste Group — AnalystM&A at Erste Group in Vienna and Nomura in Frankfurt.
- 2009–2012FH Wiener Neustadt, Yonsei University — MA BusinessBusiness consultancy. Exchange semester in Seoul.
- 2008–2009Volkswagen / PorscheVolkswagen in Buenos Aires and Porsche Holding in Salzburg.
- 2006–2009FH Wiener Neustadt — BA BusinessFinance and accounting. Exchange semester in Madrid.
