Insights

Strong Sustainability Commitment Castellum has a clear focus on sustainability, aiming to become entirely climate neutral by 2030 and being the only Nordic property and construction company listed on the Dow Jones Sustainability Index (DJSI), indicating potential for clients prioritizing eco-friendly solutions and green financing.

Active Market Expansion With properties in Sweden, Copenhagen, and Helsinki, and recent significant asset sales, Castellum is expanding its portfolio and seeking strategic partnerships, providing opportunities for service providers to support their growth and diversification efforts.

Innovative Development Projects Castellum develops flexible workplaces and logistics solutions across 3.9 million square meters, positioning itself as a forward-thinking partner interested in smart building technologies and innovative property management solutions.

Recent Strategic Partnerships Collaborations with Energy Machines and Handelsbanken highlight Castellum’s commitment to sustainable finance and energy-efficient building solutions, creating opportunities for vendors specializing in green energy, financing platforms, and ESG consultancy.

Financial Growth Signals With a revenue range of 10-25 million dollars and active asset transactions, Castellum appears open to new financial and strategic partnerships that can enhance its investment portfolio and operational efficiency in the Nordic real estate market.

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Castellum Tech Stack

Castellum uses 8 technology products and services including Optimizely, Amazon Web Services, cdnjs, and more. Explore Castellum's tech stack below.

Optimizely
A/B Testing
Amazon Web Services
Cloud Hosting
cdnjs
Content Delivery Network
Open Graph
Content Management System
Microsoft 365
Email
yepnope.js
Javascript Frameworks
Windows Server
Operating Systems
Google Analytics
Web Analytics

Media & News

Castellum's Email Address Formats

Castellum uses at least 1 format(s):

Castellum Email Formats	Example	Percentage
First.Last@castellum.se	John.Doe@castellum.se	50%
First.Last@castellum.se	John.Doe@castellum.se	50%

Frequently Asked Questions

Where is Castellum's headquarters located?

Castellum's main headquarters is located at 16 Östra Hamngatan Goeteborg, Vaestra Goetaland 411 09 Sweden. The company has employees across 3 continents, including EuropeNorth AmericaSouth America.

What is Castellum's phone number?

You can contact Castellum's main corporate office by phone at

+46-31-60-7****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Castellum's stock symbol?

Castellum is a publicly traded company; the company's stock symbol is CTM.

What is Castellum's official website and social media links?

Castellum's official website is castellum.se and has social profiles on LinkedIn Crunchbase.

How much revenue does Castellum generate?

As of March 2026, Castellum's annual revenue is estimated to be $880M.

What is Castellum's SIC code NAICS code?

Castellum's SIC code is 6531 - Real Estate Agents and Managers NAICS code is 531 - Real Estate.

How many employees does Castellum have currently?

As of March 2026, Castellum has approximately 574 employees across 3 continents, including EuropeNorth AmericaSouth America. Key team members include Cio: E. O.Chief Marketing Officer: M. H.Chief Investment Officer, Cio: K. S.. Explore Castellum's employee directory with LeadIQ.

What industry does Castellum belong to?

Castellum operates in the Real Estate industry.

What technology does Castellum use?

Castellum's tech stack includes OptimizelyAmazon Web ServicescdnjsOpen GraphMicrosoft 365yepnope.jsWindows ServerGoogle Analytics.

What is Castellum's email format?

Castellum's email format typically follows the pattern of First.Last@castellum.se. Find more Castellum email formats with LeadIQ.

When was Castellum founded?

Castellum was founded in 1993.

Castellum

Q: What is Castellum's official website and social media links?

Castellum's official website is castellum.se. Castellum has social profiles on LinkedIn.

Q: How many employees does Castellum have currently?

Castellum has approximately 574 employees.

Q: What technology does Castellum use?

Castellum's tech stack includes Vue.js, Hotjar, Modernizr, Video.js, Ubuntu.

Real EstateVästra Götaland, Sweden501-1000 Employees

Castellum is one of the Nordic region’s largest listed property companies with a property value of approximately SEK 124 billion, including our participation in the Norwegian company Entra ASA. We are active in attractive Swedish growth regions as well as in Copenhagen and the Helsinki area. 250,000 people go to work every day in our properties.We develop flexible workplaces and logistics solutions with a lettable area of 3.9 million square meters. One of our sustainability goals is to become entirely climate neutral by 2030 at the latest. Castellum is the only Nordic property and construction company elected to the Dow Jones Sustainability Index (DJSI). The Castellum share is listed on Nasdaq Stockholm Large Cap.