Hartmann Holdings vs LetterOne
Hartmann Holdings
A family-owned private investment holding company
3 employees · est. 2010 · Luxembourg, Luxembourg
LetterOne
Our aim is to build a world-class diversified global business
111 employees · est. 2013 · Luxembourg, Luxembourg
Hartmann Holdings is the older company (2010 vs 2013); LetterOne is the larger of the two.
Side-by-Side Comparison
| Metric | Hartmann Holdings | LetterOne |
|---|---|---|
| Founded | ||
| Founded | 2010 older | 2013 |
| Headquarters | ||
| Headquarters | Luxembourg, Luxembourg | Luxembourg, Luxembourg |
| Employees | ||
| Employees | 3 | 111 larger |
| Industry | ||
| Industry | Entertainment, Real Estate, Retail | Financial Services, Banking |
| Funding Stage | ||
| Funding Stage | Not tracked yet | Seed |
| Total Funding | ||
| Total Funding | Not tracked yet | $115.03K |
| Funding Rounds | ||
| Funding Rounds | Not tracked yet | 1 |
| Services | ||
| Services | Not tracked yet | Investment Management, Strategic Advisory, Portfolio Growth |
| Target Customers | ||
| Target Customers | Not tracked yet | Founders, Management Teams, CEOs, Entrepreneurs |
| Taxonomy | ||
| Taxonomy | Private Investment HoldingVenture CapitalEcommerceMarketplacesEntertainment IndustryEntrepreneurship +7 | International InvestmentUnrealised PotentialStrategic InvolvementSector ExpertisePermanent CapitalLong-term Growth +9 |
| Website | ||
| Website | hartmannholdings.com | letterone.com |
About Hartmann Holdings
Hartmann Holdings is a family-owned private investment holding company with a commitment to making a positive impact through entrepreneurship. Over the last decade, they have contributed to more than 100 entrepreneurial ventures, with significant investments in companies such as Auto1, Flaschenpost,...
About LetterOne
LetterOne, an investment firm headquartered in Luxembourg, was founded in 2013 with the mission of building a world-class diversified global business. The company focuses on unlocking unrealized potential in businesses where it can bring its deep industry expertise, strategic insights, and permanent...
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Compiled from the BounceWatch company index. We last looked at Hartmann Holdings on 17 Nov 2024, and LetterOne on 23 Feb 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
