# Flat Capital

Flat Capital is a Private Equity based in Dallas, Sweden.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Dallas, Sweden
- **Region:** Europe
- **Address:** Stockholm, Sweden
- **Founded:** 2013
- **Assets under management:** Undisclosed
- **Website:** www.flatcapital.com
- **LinkedIn:** https://www.linkedin.com/company/flat-capitalmx

## Regulatory record

- **CRD number:** 282987
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/282987

## About

Flat is a listed family office built for the long term. It was founded by Nina and Sebastian Siemiatkowski in 2013 and listed in 2021. The firm invests for long-term returns across public or private, large or small, Swedish or global holdings, as active or passive ownership, and runs a small focused team with no fees and no carry.

## People

- Sebastian Siemiatkowski — Founder and chairman
- Sebastian Siemiatkowski — Chairman of the Board
- Nina Siemiatkowski — Co-founder
- Rickard El Tarzi — CEO
- Antonio Melani — CFO
- Amaury de Poret — Executive board member
- Charlotte Runius — Board member
- Dr. Marcelo Carvalho de Andrade — Board member
- Johan Söör — Board member

## Questions

### What is Flat Capital's investment strategy?

Flat Capital states it makes long-term, early-stage to growth investments, backing dedicated founder-entrepreneurs with a hands-off approach. The firm emphasizes low operating costs and a transparent fee structure, which it argues delivers greater value to both investors and the companies it backs. It claims a global deal network provides access to otherwise difficult-to-reach opportunities.

### How does Flat Capital charge for its investments?

The firm says it avoids hidden fees, explicitly criticizing the multi-layered fee structures common in the investment industry. Flat Capital states its running costs are kept low so that the money is spent where it creates the most value, although it has not publicly outlined its specific management fee or carried interest structure.

### Who runs investment decisions at Flat Capital?

Flat Capital does not publicly identify its founder, CEO, CIO, or any investment committee members on its website. The firm's communications are unsigned and it has not provided a LinkedIn profile or team page in its publicly available materials.

### Where does Flat Capital source its deals?

Flat Capital points to a unique, global network as the source of its deal flow, which it says uncovers investment opportunities that are otherwise inaccessible. Without disclosed portfolio company names or named principal relationships, the specific sourcing channels remain unclear from public materials.

## Related profiles

- [Flat6Labs](https://altss.com/profile/flat6labs)
- [Flat Creek Capital](https://altss.com/profile/flat-creek-capital)

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Last updated: 2026-08-11T15:06:49.768Z

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