Potentia Nexus GmbH
Meet Potentia Nexus
An internationally connected corporate group based in Hamburg that brings together projects, capital, industry, and public institutions.
Summary
The Minds Behind Potentia Nexus
Potentia Nexus GmbH is led by its CEO and founder, Mehdi Ghahreman. Nadjia Ghahreman serves as Managing Director, while entrepreneur and shareholder Vural Öger contributes international market experience.
Based in Hamburg, the team connects projects, capital, industry and public institutions — with ties at government and corporate levels.
- Mehdi GhahremanCEO & Founder
- Nadjia GhahremanManaging Director
- Vural ÖgerShareholder
- Dr. Ralf René WeingärtnerShareholder · Lawyer
Dr. Ralf René Weingärtner
As head of the European Commission against Racism and Intolerance (ECRI), he advanced legislation against hate speech and launched the Europe-wide youth campaign “All Different – All Equal”. A lawyer specialising in private international law, he also advocates for refugees and people with disabilities.
As head of the European Commission against Racism and Intolerance (ECRI), he advanced legislation against hate speech and launched the Europe-wide youth campaign “All Different – All Equal”. A lawyer specialising in private international law, he also advocates for refugees and people with disabilities.
Leaders
Mehdi Ghahreman
CEO & Founder
Vural Öger
Shareholder
Dr. Rene Weingärtner
Shareholder · Lawyer
Torsten Meyer
Vural Öger, Nadjia Ghahreman and Mehdi Ghahreman
Jens Thurn
Vural Öger, Nadjia Ghahreman and Mehdi Ghahreman
Ten business areas · As of 2026
- 01Venture Capital Investments
- 02VIP & Celebrity Platform
- 03Direct Marketing Solutions
- 04Chauffeur and Limousine Service
- 05Herzensache Kinderkrebs Stiftung
- 06Bloggercube
- 07Law Firm & Tax Office
- 08Artificial Intelligence
- 09Business Consultant
- 10Insurance & Finance
Platform for International Projects
Potentia Nexus GmbH combines corporate leadership, project development, and international relationship management. From its base in Hamburg, the group brings together decision-makers from the business sector, the capital market, and public institutions to develop and structure viable projects.
Our work is based on direct access, rigorous due diligence and coordinated execution. We do not merely pass on opportunities: counterparties, documents and commercial rationale are reviewed before a project enters structuring or implementation
Leaders and Reach
Mehdi Ghahreman leads the company as CEO and founder. Shareholder and graduate engineer Vural Öger contributes an entrepreneurial perspective and international market experience. Shareholder Dr. Rene Weingärtner and lawyers Torsten Meyer and Jens Thurn add legal expertise to the leadership team. Together, the team brings commercial judgment, cross-cultural negotiation skills and the ability to bring complex stakeholder groups to the table.
The group maintains relationships at government and institutional levels and contacts within a network of more than 230 global corporations. These links support market access, strategic dialogue and the identification of suitable industrial counterparties.
HQ
Potentia Nexus GmbH, Hamburger Str. 181A, 22087 Hamburg.
Commercial Register: Hamburg Local Court, HRB 188955. Directors: Mehdi Ghahreman, Nadjia Ghahreman.
Who We Are
The group's mission, operating model and position between capital, projects and markets.
Open page →Leadership & Expertise
Entrepreneurial leadership, international relations, and disciplined project development—all under one roof.
Open page →Global Network
Direct relationships with public decision-makers, institutions, and more than 230 global corporations provide access across markets and industries.
Open page →Governance & Compliance
KYC, KYB, anti-money laundering, sanctions screening, data protection, and counterparty screening as documented procedures.
Open page →