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Castellum AB (Castellum) is a real estate company. It specializes in the management and development of commercial and residential premises. The company also provides management of properties and rental services to offices, logistics and warehouses. Its real estate portfolio comprises commercial properties such as office, retail, warehouse, logistics and industrial premises located in the regions of Greater Gothenburg, Oresund Region, Greater Stockholm and Malardalen. Castellum’s projects include Gateway Save, Halvorsang Logistics Park and others. The company manages commercial properties for business and public services purposes. Castellum is headquartered in Gothenburg, Vastra Gotaland, Sweden.

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Headquarters Sweden

Address Ostra Hamngatan 16, Gothenburg, 40314


Telephone 46 31 607400

No of Employees 564

Industry Construction

Ticker Symbol & Exchange CAST (STO)

Revenue (2024) $977.8M -2.6% (2024 vs 2023)

EPS XYZ

Net Income (2024) XYZ -60.2% (2024 vs 2023)

Market Cap* $6.8B

Net Profit Margin (2024) XYZ -59.1% (2024 vs 2023)

* As of and is in US$
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Castellum AB premium industry data and analytics

17+

Construction Projects

Access new construction projects and identify projects matching key criteria such as location, stage, sector, size, funding  and many others.

15+

Project Contacts

Target project contacts by company, project and location.

1

ICT Spend & Tech Priorities

IT Client Prospector provides intelligence on Castellum AB’s likely spend across technology areas enabling you to understand the digital strategy.

Products and Services

Services
Leasing and Property Management and Development
Development of Real Estate Properties
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History

History section provides information on new products, mergers, acquisitions, expansions, approvals, and many more key events.

Year Event Description
2026 Contracts/Agreements In June, Specialty Systems, Inc. secured a US$4 million subcontract to modernize the US Navy’s Aircraft Data Management and Control System.
2026 Contracts/Agreements In March, the company entered into an agreement with Vasaparken and Centria to divest three properties in Linkoping.
2025 Contracts/Agreements In December, the company commissioned NCC to build new office premises in Jonkoping, Sweden.
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Competitor Comparison

Key Parameters Castellum AB Wihlborgs Fastigheter AB Fabege AB Hufvudstaden AB Klovern AB
Headquarters Sweden Sweden Sweden Sweden Sweden
City Gothenburg Malmo Solna Stockholm Stockholm
State/Province - - Stockholm Stockholm Stockholm
No. of Employees 564 225 227 483 47
Entity Type Public Public Public Public Private
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Executives
Name Position Board Since Age
Ralf Spann Chairman Executive Board 2025 51
Pal Ahlsen Chief Executive Officer; President Senior Management 2025 54
Christoffer Stromback Chief Financial Officer Senior Management 2026 45
Mats Eriksson Managing Director - Malardalen Region Senior Management 2022 63
Sven Stork Managing Director - Stockholm Region Senior Management 2022 59
Non Dignissim Eros Proin vel Convallis 2026 XY
Non Dignissim Eros Proin vel Convallis 2026 XY
Non Dignissim Eros Proin vel Convallis 2026 XY
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