# Miston Investment

Miston Investment is a Single Family Office based in Espoo, Finland.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Espoo, Finland
- **Region:** Europe
- **Address:** Espoo, Finland
- **Founded:** 1987
- **Assets under management:** Undisclosed
- **Website:** miston.fi
- **LinkedIn:** https://www.linkedin.com/company/miston-oy

## Regulatory record

- **Reports private funds:** No

## About

Miston Investment was established in 1987 by the Tammisto family. The firm allocates across real estate, private equity, and venture capital. It participates through direct co-investments and SPVs rather than broad fund commitments. Confirmed positions include minority stakes in Renta Group Oy alongside Intera Partners and Rototec Group. It has also co-invested in Pohjolan Design-Talo Oy with the Hartikainen family in 2021 and Feon Oy with Onvest Oy in 2018. Activity remains focused on Finland and other Nordic countries. No public data exist on team size or additional offices. Adjacent vehicles are not disclosed. Recent operational events center on the 2021 Pohjolan Design-Talo transaction. Miston maintains a hybrid structure that combines evergreen real-estate ownership with selective venture and private-equity co-investments, allowing the family to retain direct governance over both asset classes.

## Sectors

- PropTech
- Real Estate
- Private Equity

## People

- Tammisto family — Founding Family

## Questions

### Who runs investment decisions at Miston Investment?

The Tammisto family oversees allocations. No external CIO or named investment principals appear in public records.

### Does Miston Investment participate in fund commitments or only direct deals?

The office uses direct co-investments and SPVs. It has joined specific transactions with Intera Partners and Onvest Oy.

### What investment stages does Miston Investment typically target?

It targets growth, seed, and startup stages in addition to expansion opportunities in real estate and operating companies.

### What is Miston Investment's known posture on co-investments alongside external GPs?

It has acted as a minority co-investor with Intera Partners in Renta Group Oy and Rototec Group.

## Related profiles

- [Miramar Holdings](https://altss.com/profile/miramar-holdings-briscoe-carpenter-family-office)
- [Mitchell Family Office](https://altss.com/profile/mitchell-family-office)

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Last updated: 2026-08-10T15:58:45.833Z

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