Stronghold is continuously looking for new concepts and innovations within the field of real estate.

With over 25 years of industry experience, we provide vast market knowledge and expertise related to investments in properties and associated services.

We emphasise investments where we can leverage our strong market position and long established relations with key players in the Nordic real estate market. By doing so we generate long-term value, for shareholders, our partners and employees.

The portfolio consists of in total 14 companies from real estate service companies, like Newsec & NIAM, to a PropTech portfolio. 

Portfolio companies


Real Estate

Core investment


The Full Service Property House in Northern Europe – offers real estate owners, investors and tenants a full range of services within the areas of Property Asset Management and Advisory.

Newsec was founded in 1994 and is today a partner-owned company with some 2,700 co-workers in seven markets. Newsec has approx. €65 billion under management and annually signs lease agreements of some 1.6 million square meters, manages transactions of some €7.6 billion and does real estate valuations of underlying property worth €225 billion.

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Core investment


Niam is one of northern Europe's leading fund managers with a focus on investments in real estate and infrastructure.

 For the past 23 years, Niam has invested in properties in the Nordics of more than €12 billion through their funds and today they manage a property portfolio of approximately €2.5 billion.

 Niam Infrastructure focus on sustainable asset aggregation and risk reduced investments within renewable energy, transportation and telecom in the Nordics and northern Europe.

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Digitalization of real estate

We believe that digitalization and use of modern technology will continue to shape the competitive landscape in real estate, which is why we invest in innovative PropTech start-ups and drive digital transformation projects within our core portfolio.

Examples from our PropTech portfolio
Read more about Tessin Tessin


Tessin is the largest alternative property financing platform in the Nordics. Tessin serves those who wish to place capital directly in real estate without any complicated fees and intermediaries. On Tessin’s platform individuals and institutions can invest in different types of real estate projects and receive an attractive yield on their investment.

Read more about Netmore Netmore


Netmore Group is a dedicated IoT operator. It connects properties, provide private and open 5G networks, and enable massive IoT connectivity with LoRaWAN®

Read more about Accessy Accessy


Accessy opens all doors in a smooth and secure way through your smartphone Accessy eliminates the need for keys, cards, codes or badges to open your doors. Everything is in your smartphone, just press the open button in the Accessy app and new possibilities open up for you. Safe, fast and smooth.

View Proptech portfolio


When the time is right

Over the years Stronghold Invest has successfully completed the following divestments. 

Read more about Datscha Datscha


Datscha provides you with an online solution for faster and more accurate decisions by turning data from the best public and private sources into knowledge enabling you to make better property investment decisions.

Read more about Mestro Mestro


Mestro helps you to spend less energy. Their SaaS-based energy monitoring platform empowers property owners to take their sustainability to the next level.

Read more about ESNY ESNY


Eklund Stockholm New York (ESNY) was founded in 2009 as the only truly international real estate residential brokerage in the Nordics, specializing in the most exclusive properties.

Read more about Lords Lords


Lords LB Asset Management focuses on real estate and private equity investment strategies in the Baltics for institutional clients and high net worth individuals.