Tresono Family Office AG

Overview

TRESONO Family Office AG serves affluent families and foundations through coordinated wealth planning, investment oversight, and family-office advice. The firm describes its vision as helping entrepreneurial families preserve and develop wealth across generations while supporting entrepreneurial freedom and personal independence.¹

History

TRESONO reports more than 16 years of family-office experience. Its real-estate team represents around 100 years of combined professional practice.²

Leadership

Marc Ernesti has served as Vorstand and Partner since January 2026. He oversees the firm’s management and intergenerational strategic direction.⁴

Lars Hennenberg is Principal Partner Real Estate and leads TRESONO’s real-estate activities, including strategy, asset management, and transactions.⁴

Marco Joch joined TRESONO in September 2026 as Principal Partner Family Office and a member of the management team. His work focuses on holistic family-office advice and wealth succession.⁴

Services

TRESONO structures family wealth and coordinates capital-market, private-equity, and real-estate investments. Its investment-office services include strategic asset allocation, risk management, diversification, investment controlling, digital reporting, liquidity planning, and coordination across asset classes.⁵

The firm’s real-estate services cover investment strategy, transaction advisory, due diligence coordination, financing support, negotiations, asset management, liquidity planning, monitoring, and reporting.⁶

TRESONO supports wealth succession through governance structures, intergenerational planning, next-generation education, and organized transfers of family assets. It also advises on foundation structures and integrates sustainability, philanthropy, and impact investing into family wealth strategies.⁵

What the firm offers

• Investment management
• Financial planning
• Philanthropy
• Family governance and education
• Risk and insurance

Client Focus

TRESONO works with affluent families and foundations, particularly entrepreneurial families seeking coordinated support across investments, governance, and succession. The firm reports working with more than 15 banks and asset managers and more than 30 private-markets providers.¹⁵

Approach

TRESONO describes its ownership as consisting of client families and team members, without an institutional investor. The firm says it does not sell proprietary products or maintain provider distribution partnerships.¹

Company Details and Regulation

TRESONO Family Office AG is registered as a German stock corporation in Cologne’s commercial register under HRB 71421. The firm reports authorization as a financial investment intermediary under Section 34f of Germany’s Trade and Industry Code, issued by the Cologne Chamber of Industry and Commerce.³

FAQs

Related resources

• LocationMultifamily offices in Germany

  This Germany-focused overview helps families compare how multi-family offices serve clients in the country's legal, tax, and business setting. It gives a reader considering TRESONO a broader reference point for assessing services such as investment management, financial planning, and family governance in Cologne and beyond.

• GuideMultifamily office services

  This services guide explains the main functions a multi-family office may coordinate for affluent families and foundations. Use it to frame questions for TRESONO about investment management, philanthropy, risk and insurance, education, and how these areas fit together across generations.

• Network siteFamilyOfficeDatabases.com

  FamilyOfficeDatabases.com provides directories of family offices and investors that can help a business owner research the wider market. A reader can use the listings to compare firms by location, client focus, or investment interests, then place a Cologne-based option such as TRESONO within that broader set.

• GuideHow multifamily offices invest

  This investing overview outlines common approaches multi-family offices use across asset classes, risk levels, and time horizons. It can help a family prepare practical questions for TRESONO about portfolio construction, liquidity, stewardship of wealth, and how investment decisions relate to family goals and foundations.

• Similar firmsA/VENTUM family office Consulting AG
  FONTIS Family Office GmbH
  PARAMUS Asset Management & Finanzplanung

  Profiles of A/VENTUM family office Consulting AG, FONTIS Family Office GmbH, and PARAMUS Asset Management & Finanzplanung offer nearby points of comparison on this site. Reviewing their stated services can help a prospective client distinguish different approaches to planning, asset management, governance, and support for families or business owners.

Sources

1. https://www.tresono.de/
2. https://www.tresono.de/real-estate/
3. https://www.tresono.de/impressum/
4. https://www.tresono.de/tresono-family/
5. https://www.tresono.de/investment-office/

Claim or correct this profile

This profile is a factual summary written in our own words from public sources. It is for information only. It is not an endorsement, rating, ranking or recommendation, and it is not investment advice. MultiFamilyOffices.com is not affiliated with the SEC or with this firm unless stated. Form ADV figures are self-reported by the firm.