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TRESONO Family Office AG

Family office

Cologne · 11 people tracked

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Investment thesis

TRESONO Family Office AG is a Cologne-based multi family office that advises entrepreneurial families on wealth management, strategic asset allocation, real estate, and entrepreneurial (private equity/private debt) investments across generations.

Invests inSector AgnosticCologneGermany

Source: firm website, verified Aug 3, 2026.

HQ
Cologne, DE

Team · 11 people

from the firm's website
Marc Ernesti· Vorstand & Partner

Board member and partner at TRESONO since January 2026, leading the firm's strategic, cross-generational direction and client relationships. Spent roughly three decades at Commerzbank AG in various roles including regional director and managing director of a subsidiary, where he also led AI initiatives.

Stephan Knichel· Senior Advisory Partner

A founding shareholder of TRESONO AG who served on the board from inception and moved to a Senior Advisory Partner role in July 2026, focusing on real estate advisory. Previously spent 23 years at Sal. Oppenheim in Cologne in credit, real estate, and wealthy-family advisory roles.

Angela Müller-Valkyser· Senior Advisory Partnerin

Longtime board member of TRESONO who shaped its strategic direction and transitioned to Senior Advisory Partner in July 2026. Spent over 28 years at Deutsche Bank in corporate/investment banking and wealth management, most recently leading the family office and large-wealth business for Germany.

Lars Hennenberg· Principal Partner Real Estate

Joined TRESONO in August 2020 and leads the firm's entire real estate area as Principal Partner and member of management. Trained as an architect with a real estate economist qualification, he previously spent over twelve years in real estate consulting at Deloitte.

Alexander Wurm· Senior Consultant

Senior Consultant at TRESONO since April 2024, advising client families on entrepreneurial holdings and strategic asset allocation, with a focus on due diligence and investment profiles. Holds an M.Sc. in Economics from the University of Cologne and previously worked in the finance area of an MDAX company.

Anika Weißenborn· Werkstudentin

Working student at TRESONO since March 2026 focusing on entrepreneurial holdings, analyzing private equity and private debt investments and supporting multi-asset portfolio reporting. Completing a B.A. in International Business at CBS Cologne Business School.

Anna-Lena Osebold· Senior Consultant

With TRESONO since October 2016, she handles real estate acquisition/disposal mandates and ongoing asset management for family office clients. Previously worked in the real estate area of Deutsche Oppenheim Family Office AG.

Julian Schlüßel· Senior Consultant

Joined TRESONO in July 2021 as a trainee and now works as a Senior Consultant in client advisory, focusing on capital markets and cross-asset strategic allocation, and also supports the firm's social media activities.

Leon Hertach· Real Estate Analyst

Real estate analyst at TRESONO since September 2025, working on asset management, strategy advisory, and transaction management with a focus on next-generation clients. Previously a working student at the firm and gained experience at a real estate company and an international real estate bank.

Nicole Schäfer· Senior Analyst

Senior analyst at TRESONO since January 2018, focused on strategic total-wealth planning, selection of indirect entrepreneurial holdings, and monitoring/reporting of multi-asset structures. Previously worked in private banking (Commerz Finanz Management, UBS) and at Deutsche Oppenheim Family Office AG.

Tezdzhan Alimolla· Assistentin

Known as 'Tessy', she has been an assistant at TRESONO since January 2023, coordinating internal processes, client orders, and financial accounting. Previously held leadership roles in hospitality, including front office manager positions.

Frequently asked questions

What sectors does TRESONO Family Office AG focus on?
TRESONO Family Office AG focuses on Sector Agnostic.
Where is TRESONO Family Office AG located?
TRESONO Family Office AG is headquartered in Cologne, DE.

Images

TRESONO Family Office AG photo

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