Insights

Sustainability leadership Castellum aims to be entirely climate neutral by 2030 and is the only Nordic property and construction company elected to the Dow Jones Sustainability Index, signaling strong ESG leadership that can be a differentiator in tenant negotiations and green finance opportunities.

Strategic region expansion Active presence in Sweden's growth regions as well as Copenhagen and Helsinki suggests opportunities to upsell flexible workplaces and logistics space to expanding tenants or firms relocating operations in Northern Europe.

Scale and reach A lettable area of 3.9 million square meters and 250,000 daily workers in Castellum properties indicate a broad, scalable platform for multi-tenant solutions, corporate HQ consolidations, or rollouts of standardized workspace concepts.

Public market credibility Being listed on Nasdaq Stockholm Large Cap with a sizable property value and a clear growth focus enhances trust for enterprise tenants and vendors seeking stable, long-term partnerships and favorable financing terms.

Sourcing signals Recent news shows procurement and contract awards in defense-related IT and logistics services, implying potential cross-sell for integrated facilities with tech-enabled occupancy, data center readiness, or real estate services supporting mission-critical operations.

Similar companies to Castellum

Castellum Tech Stack

Castellum uses 8 technology products and services including Optimizely, Hotjar, Linkedin Insight Tag, and more. Explore Castellum's tech stack below.

Media & News

Castellum's Email Address Formats

Castellum uses at least 2 email formats:
Castellum Email FormatsExamplePercentage
First.Last@castellum.seJohn.Doe@castellum.se
99%
First.MiddleLast@castellum.seJohn.MichaelDoe@castellum.se
1%

Frequently Asked Questions

What is Castellum's phone number?

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

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

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

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

How much revenue does Castellum generate?

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As of August 2026, Castellum's annual revenue is estimated to be $10M - $25M.

What is Castellum's SIC code and NAICS code?

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

How many employees does Castellum have currently?

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As of August 2026, Castellum has approximately 567 employees across 3 continents, including Europe, North America and South America. Key team members include Cio: E. O., Chief Sustainability Officer: F. E. and Chief Marketing Officer: M. H. Explore Castellum's employee directory with LeadIQ.

What industry does Castellum belong to?

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Castellum operates in the Real Estate industry.

What technology does Castellum use?

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Castellum's tech stack includes Optimizely, Hotjar, Linkedin Insight Tag, Microsoft Clarity, Amazon Web Services, Zendesk, Microsoft Azure and Vimeo.

What is Castellum's email format?

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

How much funding has Castellum raised to date?

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As of August 2026, Castellum has raised $552M in funding. The last funding round occurred on Sep 03, 2024 for $552M.

When was Castellum founded?

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Castellum was founded in 1993.
Castellum logo

Castellum

Real EstateVästra Götaland, Sweden501-1000 Employees

Castellum is a major listed real estate company in the Nordic region, focused on owning and developing properties that support flexible offices and logistics. Its activity spans growth regions in Sweden as well as Copenhagen and the Helsinki area, with about 250,000 people working daily in its properties. The company is based in Gothenburg, Västra Götaland, Sweden, and its shares trade on Nasdaq Stockholm Large Cap.

Its portfolio encompasses around 3.9 million square meters of lettable space designed to accommodate evolving tenant needs. It emphasizes sustainability, aiming to be climate neutral by 2030 and is the only Nordic property and construction company elected to the Dow Jones Sustainability Index. Its holdings also include participation in the Norwegian company Entra ASA.

Section iconCompany Overview

Phone number
SIC Code
6531 - Real Estate Agents and Managers
Stock Symbol
CTM
NAICS Code
531 - Real Estate
Founded
1993
Employees
501-1000

Section iconFunding & Financials

  • $552M

    Castellum has raised a total of $552M of funding over 1 rounds. Their latest funding round was raised on Sep 03, 2024 in the amount of $552M as a Post IPO Debt.

  • $10M - $25M

    Castellum's revenue is estimated to be in the range of $10M - $25M

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