About
Founded in 2024, OneCo is a private headquartered in Stockholm, Sweden with approximately 200-500 employees specializing in Energy Storage.
OneCo is a Norwegian industrial group headquartered in Sweden that specializes in installing secure and robust infrastructure solutions within telecommunications, energy, and IT sectors. The company actively supports Sweden's green transition and digital development through advanced technology solutions. OneCo has significant experience in energy distribution, electricity meter installations, energy storage deployment, high-voltage electrical work, and grid infrastructure upgrades. The company works with major energy operators including Ellevio, E.ON, Skövde Energi, and Lerum Energi. OneCo also provides security solutions, IoT services, and fast-charging infrastructure. With approximately 300 employees distributed across Sweden, the company delivers specialized services including electrical assembly up to 420 kV, battery park construction, network planning and maintenance, and comprehensive grid modernization projects.
Headquarters
Stockholm, Sweden
Founded
2024
Employees
200-500
Company Type
Private
Business Models
Value Chain
Service Regions
Sweden
Projects
Ellevio Communication Network - Central Sweden
Electricity Meter Replacement - Lerum and Partille
Vimmerby Energy Storage Project
Hällekis 130 kV Substation Upgrade
Skövde Electricity Network Upgrade
Mölndal Electricity Meter Replacement
AcadeMedia School WiFi Upgrade
Top Gear Sustainable Speed Week - Gotland Ring
Certifications & Awards
Certifications
High-Voltage Cables Certificate
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