Find your path to Jonathan
1,341 people in our graph can introduce you to Jonathan.
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Ask Christian Siegele to introduce you to Jonathan
You →Christian · together at Rex (2025–2026) →Jonathan
Ask Jamie Chen to introduce you to Jonathan
You →Jamie · 2 people · together at EWOR →Jonathan
Ask Sam Okafor to introduce you to Jonathan
You →Sam · 9 people · together at PICUS CAPITAL →Jonathan
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Co-Founder & CEO at Rex
Intro paths
In turn, Jonathan can intro founders to Rex's investors below.
Rex's investors · 6
Co-founders at Rex

Experience
- RexFounder & CEOcurrent2022 — presentBerlin, Germany
- Calm/StormSupporting Partnercurrent2025 — present
- Hochschule Neu-UlmAdjunct Lecturercurrent2026 — present
- EWORVenture Scoutcurrent2025 — present
- Picus CapitalVenture Scoutcurrent2022 — present
- McKinsey & CompanyJr. Engagement Manager2020 — 2021Berlin, Bonn, London, Munich, Copenhagen, Paris
- McKinsey & CompanyConsultant2018 — 2020
- ForexfixCo-Founder2017 — 2018Berlin Metropolitan Area
- Various CompaniesVarious Internships2011 — 2015London, Bangalore, Madrid, Berlin, Frankfurt, Bonn
Skills & more
+10 more
Political ScienceInternational RelationsProject PlanningProgram CoordinationStart-upsSQLMicrosoft OfficePowerPointMicrosoft ExcelVisual Basic for Applications (VBA)From Jonathan's professional profile.
Colleagues at EWOR
Network2
Investors connected to Jonathan in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Jonathan Loesing?
- Investor at Calm/Storm VC
- Where does Jonathan Loesing work?
- Jonathan Loesing is Co-Founder & CEO of Rex and Venture Scout at EWOR.
- What check size does Jonathan Loesing write?
- Jonathan Loesing typically writes checks of $250K – $750K.
- What companies did Jonathan Loesing found?
- Jonathan Loesing founded Rex.
- Where did Jonathan Loesing go to school?
- Jonathan Loesing studied at University of Cambridge (Bachelor's degree, Human); Stiftung Louisenlund (Abitur, Mathematics).
Founder mafias
McKinsey & Company mafia922
Also came through, then founded or led a company.
University of Cambridge mafia706
Also came through, then founded or led a company.
EWOR mafia29
Also came through, then founded or led a company.
PICUS CAPITAL mafia28
Also came through, then founded or led a company.
Calm/Storm VC mafia7
Also came through, then founded or led a company.
Same school
Also attended University of Cambridge1,682
+ 1,676 more
Also attended Stiftung Louisenlund1
Shared employers
Also worked at Rex2
Also worked at Hochschule Neu-Ulm2
Also worked at McKinsey & Company2,000
+ 1,994 more
Also worked at Various Companies10
+ 4 more
























































