A/Ventum Family Office AG

Overview

A/VENTUM family office Consulting AG identifies its operating entity in Stuttgart and is registered with Stuttgart local court under HRB 752076.³ The firm advises and supports wealthy private individuals and entrepreneur families in their economic affairs.⁶ Its client proposition describes comprehensive professional support for wealthy individuals and entrepreneur families.⁷ The current website lists Stuttgart as its location.¹⁹

History

A/Ventum family office AG was entered in the Stuttgart commercial register under HRB 730527 on 16 July 2009.¹ The historical register described a multi family office business providing fee based business consulting to private individuals and institutions.¹ The current website identifies the operating entity as A/VENTUM family office Consulting AG under HRB 752076.³

Leadership

The management board comprises Oliver Heller, Tobias Heller, Alwin Schmider and Carmen Straßer.⁴ Thomas Alexander Klein is chair of the supervisory board.⁵

Services

A/VENTUM says it works with clients’ existing tax and legal advisers and coordinates interdisciplinary questions and solutions.⁸ Its listed expertise includes financial planning, generations management, real estate solutions, manager selection, photovoltaic systems, executor services, business participations, insurance strategies, family office mandates, reporting, foundation management, wealth controlling and art consulting.⁹

The firm says it develops a dynamic financial plan that adapts to a client’s life circumstances.¹⁰ Its generations management supports succession planning and the transfer of assets and responsibility to the next generation.¹¹ Its real estate advice is described as holistic and independent of broker interests.¹²

A family office mandate may include document custody, postal service authorization, collection management and coordination of advisers and service providers.¹³ The firm states that it operates on a fee basis and works exclusively on the client’s instruction to coordinate the family’s economic affairs.¹⁴ It says it does not itself provide tax advice or legal advice, instead working with clients’ existing advisers and specialist partners.¹⁵

The legal notice lists German permissions and registrations under sections 34c, 34d paragraph 1, 34f paragraph 1 sentence 1 and 34i of the Trade Regulation Act. These include insurance mediation, financial investment mediation and residential mortgage loan mediation.²⁰ The listed registration numbers are D 4GSY DPSXJ 25 for insurance mediation, D F 175 ZAUN 10 for financial investment mediation and D W 175 7LEP 11 for residential mortgage loan mediation.²¹²²²³

What the firm offers

• Financial planning
• Tax planning
• Estate planning
• Philanthropy
• Family governance and education
• Risk and insurance
• Private and alternative investments

Client focus

The firm serves wealthy private individuals and entrepreneur families.⁶⁷ It describes its work as support for families’ economic affairs and says it coordinates with existing tax and legal advisers.⁶⁸

Investment philosophy and approach

The firm describes itself as transparent, fully independent, comprehensive, critical and professional.¹⁶ It says its aim is to manage, protect and improve clients’ financial resources and potential.¹⁶ The firm says it seeks long term relationships, including support across generations, and emphasizes employee education and continuing training.¹⁷

FAQs

Related resources

• LocationMultifamily offices in Germany

  This Germany focused page helps families compare multifamily office models, locations, and areas of advice. A Stuttgart based reader can use it to place A/VENTUM's work with private individuals and entrepreneur families within the wider German market, including planning, investments, governance, and risk considerations.

• GuideMultifamily office services

  This overview explains the services a multifamily office may coordinate, from financial and tax planning to estate matters, philanthropy, insurance, and private investments. It helps a family assess which topics deserve attention when considering advice for personal wealth, business interests, and future generations.

• Network siteFamilyOffices.com

  FamilyOffices.com offers resources and a community for single family offices and wealthy families. Readers considering a German adviser can use it to explore family governance, education, philanthropy, and investment questions, while comparing those needs with the concerns of entrepreneur families and privately held wealth.

• GuideQuestions to ask a multifamily office

  This question guide helps a family prepare for early conversations with a multifamily office. Topics can include fees, independence, investment approach, tax and estate coordination, confidentiality, and communication. Those prompts are useful for a Stuttgart family or business owner reviewing advice across several generations and financial priorities.

• Similar firmsPARAMUS Asset Management & Finanzplanung
  917 Family Office AG
  FONTIS Family Office GmbH

  Profiles of PARAMUS Asset Management & Finanzplanung, 917 Family Office AG, and FONTIS Family Office GmbH provide nearby comparison points on this site. Reviewing their stated services can help a family distinguish between offerings in financial planning, investments, governance, tax matters, and support for entrepreneurs.

Sources

1. Historical commercial register record , accessed 2026-10-23.
2. A/VENTUM website , accessed 2026-10-23.
3. A/VENTUM legal notice , accessed 2026-10-23.
4. A/VENTUM legal notice , accessed 2026-10-23.
5. A/VENTUM legal notice , accessed 2026-10-23.
6. A/VENTUM website , accessed 2026-10-23.
7. A/VENTUM website , accessed 2026-10-23.
8. A/VENTUM website , accessed 2026-10-23.
9. A/VENTUM legal notice , accessed 2026-10-23.
10. A/VENTUM expertise , accessed 2026-10-23.
11. A/VENTUM expertise , accessed 2026-10-23.
12. A/VENTUM expertise , accessed 2026-10-23.
13. Family office mandate , accessed 2026-10-23.
14. A/VENTUM family economic coordination , accessed 2026-10-23.
15. A/VENTUM family economic coordination , accessed 2026-10-23.
16. A/VENTUM philosophy , accessed 2026-10-23.
17. A/VENTUM philosophy , accessed 2026-10-23.
18. A/VENTUM legal notice , accessed 2026-10-23.
19. A/VENTUM legal notice , accessed 2026-10-23.
20. A/VENTUM legal notice , accessed 2026-10-23.
21. A/VENTUM legal notice , accessed 2026-10-23.
22. A/VENTUM legal notice , accessed 2026-10-23.

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.