We seek sustainable and socially beneficial investments that create value over time.

We seek sustainable and socially beneficial investments that create value over time

Neptunia invests in companies within Real Estate and Finance as well as Defence and Security. All of our holdings are within the confines of these investment areas and aim to achieve good return through investments in sustainable business models that improve society.

Our holdings are divided into three areas: Core investments, Minority investments and Financial investments. The objective is that all our core investments should be or have the potential to become leading in their respective segment. The minority-owned holdings mainly include unlisted companies, focusing on companies with a technical profile, innovation capability and strong entrepreneurs. Financial investments comprise direct investments in Slättö Förvaltning’s fund as well as in Borgo and 4C Group.

Core investments

Neptunia’s portfolio consists of three core investments: Slättö Förvaltning, led by Johan Karlsson (CEO and founder); MW Group, led by Mikael Karlsson (CEO and founder); and SIBS, co-founded by Johan Karlsson who also is a member of the board.


Slättö Förvaltning manages alternative investment funds with focus on property investments in the Nordics. Slättö’s funds develop, manage, and refine residential properties, community properties and commercial properties within logistics and industry. As of the 31 December 2021, Slättö had assets under management of SEK 11 BN.


MW Group is a modern Nordic defence and security company that delivers services to socially important functions in the Nordics and for international projects. The clients primarily operate in the defence and security sector as well as industries that maintain socially important functions.


SIBS was founded in 2016 with the ambition to revolutionise the construction industry and is now one of the fastest growing residential developers in the Nordics. The company has developed its own proprietary system that covers the full value chain and provides greater flexibility in the execution phase, with substantially shorter project lead times. Properties produced by SIBS are owned and managed with a long-term holding perspective.

Minority investments

Since the start in 2019, Neptunia has built a portfolio of minority-owned investments. The portfolio is focused on companies characterised by strong entrepreneurs with sustainable and digital business models at exciting stages of their development.

Minority investments

Financial investments

As part of its investment strategy, Neptunia performs financial investments. In addition to supporting Slättö Förvaltning and a degree of liquidity, Neptunia receives ongoing strong net clash flow over time from its financial investments.