Langstack

Utility

Reliable supply. Better service for everyone

Connect customer service, billing, and operations across water, heat, and power. Build your own applications, AI models, and agents to serve households, businesses, and public institutions. Keep your data and operations under your control.

An aerial view of treatment basins and equipment at Envafors’ Slagelse wastewater treatment plant.

Companies we’ve helped

  • Coloplast
  • Lokal Forsikring
  • 3
  • SK Energi
  • Mindshare
  • Energi Fyn
  • Røde Kors
  • OK
  • Telenor
  • Envafors
  • Frederikshavn Forsyning
  • Vestforsyning
  • Andel Energi
  • APC Forsikringsmæglere
  • Bonnier
  • Cognito · Bording Group
  • CA a-kasse
  • Call me
  • Egmont
  • Falck
  • Læger uden Grænser
  • Modstrøm
  • Roskilde Kommune
  • SEAS-NVE
  • Storm Group
  • Goodwin Company
  • Verisure
  • Visma e-conomic
  • Dantaxi
  • Proactiv

Put intelligence to work across utilities

Customer service & self-service

Connect calls, messages, and case history so advisers and portals share the same context. Help households, businesses, and institutions resolve enquiries and manage services across properties.

Billing & account operations

Connect customers, properties, meters, and bills. Coordinate move-ins, ownership changes, payments, and data checks, with clear access for residents, landlords, and organisational account holders.

Proactive communication & consumption insights

Notify affected customers about planned work, interruptions, or unusual consumption. Explain what it means for their property, offer relevant guidance, and keep them informed through resolution.

Incident response & field service

Link fault reports to affected addresses, assets, and work orders. Coordinate technicians, share repair progress with customers, and carry field findings back into operational knowledge.

Asset health & maintenance

Combine operating signals, inspection images, and repair history to identify emerging faults. Prioritise maintenance by asset condition, criticality, and the impact on the people and organisations served.

Network & resource planning

Connect network capacity, demand, and asset condition. Identify water and heat losses, compare renewal investments, and plan resources around reliable supply and future customer needs.

Your intelligent utility stack

Connect customers, properties, meters, and assets in a shared context. Build your own applications, AI models, and agents to improve service and coordinate operations across your existing systems.

Less manual work at SK Forsyning

Now part of Envafors, SK Forsyning connected customer data, payment enrolment, and self-service to simplify everyday administration.

81%less manual data entry and verification

  • Automated data enrichment from CVR, CPR, DAWA, and Energinet DataHub
  • An API for payment-service enrolment reduced manual steps
  • Self-service for address changes replaced routine customer-service work
Read the customer story

A security foundation for utilities

Zero Trust makes access explicit, limited and subject to reassessment. Langstack’s identity and networking controls provide a foundation for applying these principles to applications, models and agents.

Explore Security
Explicit verification
Verify identities and authorize access to each resource. Reassess access as context and security signals change.
Least-privilege access
Grant users, workloads and agents only the access their task requires. An agent’s decision to use a tool does not itself grant permission.
Assume breach
Design for the possibility that a workload or identity is compromised. Isolate workloads, limit lateral access, and monitor activity to help contain the impact.

“From idea to data and activation, Langstack is with us all the way. The commercial results speak for themselves.”

Anders EsbesenHead of Sales & Customer Service, Envafors
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Start with the service you want to improve

From customer enquiries to field operations, build around your teams, systems, and priorities. We help you turn a specific challenge into a working solution you control.