DS1 Service

What DS1 Service does

DS1 Service is a Lithuanian-headquartered operation and maintenance (O&M) services subsidiary of the DS1 Group, providing preventive and corrective maintenance, performance monitoring, and asset management for photovoltaic parks, wind turbine parks, high-voltage substations, and battery energy storage systems (BESS) across Europe. The sub-brand operates from the Kaunas HUB in Biruliškės, Lithuania, and is part of a privately held group founded in 1991 that has grown into an international energy infrastructure contractor with wholly-owned entities in Lithuania, Latvia, Greece, Denmark, and Romania, plus completed projects in Bulgaria, Poland, Germany, Estonia, and Croatia.

The underlying capability set spans full-scope energy infrastructure construction: gas and hydrogen pipeline installation (hundreds of kilometers executed), high-voltage cable works, power transformer installation, district heating network reconstruction, solar and wind park EPC, and BESS development using CATL battery cells and CubEnergy containers/inverters. The group holds an unusually deep certification stack — ISO 9001, 14001, 45001, 27001, 50001, 3834-2, VERT LT, IPLOCA, and Achilles Supplier Stamp — that functions as a tender pre-qualification moat for utility and infrastructure buyers.

DS1's commercial model is dual-track: project-based EPC contracts (one-time, multi-year execution) for utilities, renewable developers, and tier-1 EPC contractors such as Litgrid, Enefit Green, Green Genius, Augstsprieguma tīkls, AVAX, PER AARSLEFF, and HABAU, paired with multi-year managed-service O&M agreements (e.g., the €12M/5-year Litgrid contract). Pricing is quote-based and project-specific with no published tiers. The stated strategic intent is to become the largest O&M provider in the Baltic states, shifting revenue mix toward recurring service streams anchored by the energy transition build-out.

Name

DS1 Service

Legal name

UAB DS1

Website

https://ds-1.lt

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

1–10 employees

Short description

DS1 Service is the Lithuanian O&M-focused subsidiary of DS1 Group, providing preventive and corrective maintenance, performance monitoring, and asset management for PV parks, wind farms, high-voltage substations, and BESS assets across Europe, with an explicit goal to become the largest O&M provider in the Baltic states.

Ownership category

akta.pro rank

Product category

Energy Infrastructure Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Solar Electric Power Generation (221114), Wind Electric Power Generation (221115), Electric Power Distribution (221122)

SIC

Electric Services (4911), Oil & Gas Field Services, Nec (1389), Services-Facilities Support Management Services (8744)

akta.pro primary industry

Grid Interconnection & Collector Substation EPC (Utility-Scale Renewables) (EUAEABAK)

akta.pro secondary industries

Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG), Protection, Metering & Grid Compliance Systems (Relays, Revenue Metering, PQ) (EUAEADAE), Distribution Network O&M (MV/LV Lines, Switchgear, Transformers) (EUAEAGAE)

Keywords

• Energy infrastructure construction
• Operation and maintenance services
• Renewable energy EPC
• Battery energy storage systems
• Pipeline construction services

Headquarters

HQ city

Vilnius

HQ country

Lithuania

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. EPC Contract Revenue: Revenue generated from Engineering, Procurement, and Construction contracts for energy infrastructure projects including pipelines, substations, solar/wind parks, and BESS installations. Projects are typically large-scale, project-based engagements with defined scopes and timelines.
2. Operation & Maintenance Services: Long-term O&M contracts providing ongoing maintenance, performance monitoring, and asset management for installed energy infrastructure including PV parks, wind farms, substations, and BESS facilities.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

DS1 Service provides comprehensive operation and maintenance (O&M) services for energy infrastructure assets, including photovoltaic parks, wind turbine generator parks, high-voltage substations, and battery energy storage systems. Within the broader DS1 group, the company also delivers full Engineering, Procurement, and Construction (EPC) services for gas pipelines, district heating networks, solar and wind parks, power transformers, cable works, hydrogen infrastructure, and BESS installations across Europe.

Product overview

DS1 is an energy infrastructure company offering a comprehensive portfolio of products and services. The main brands include DS1 Service (O&M services for PV, wind parks, and High-Voltage substations), DS1 Green (electrical network installation up to 35kV, fast-track ESO contractor), and DS1 (parent company handling core construction services). Core service offerings include Pipelines (gas pipeline construction with turnkey solutions), Solar & Wind Parks (full EPC services), Cable Works (high-voltage power cable installation), Power Transformers (installation and maintenance), District Heating (network installation), Hydrogen (EPC for hydrogen projects), Battery Energy Storage Systems (BESS development, EPC, and O&M), and Operation & Maintenance (preventive/corrective maintenance for energy assets). The products are organized as sub-brands under the DS1 group, with DS1 handling construction/EPC and DS1 Service/DS1 Green providing specialized O&M and installation services.

Differentiator

Problem solved

Functional benefit

Brands

• DS1 Service: Part of DS1 group providing comprehensive operation and maintenance (O&M) services for photovoltaic (PV) parks, wind turbine generator (WTG) parks, and High-Voltage substations. Mission: ensure maximum performance and reliability through preventive, corrective maintenance, performance monitoring, and asset management.
• DS1 Green

Products and services

• Pipelines Gas pipeline construction services offering a full range from specialized automatic welding to comprehensive turnkey solutions, with hundreds of kilometers constructed across Europe.
• Solar & Wind Parks Full EPC services for photovoltaic (PV) parks and wind parks, covering every aspect from start to finish for PV parks and all components except turbines for wind parks.
• Cable Works High-voltage power cable installation services ensuring efficient and secure energy transmission across Europe.
• Power Transformers Installation and maintenance of power transformers, essential components for integrating renewable energy sources into the grid.
• District Heating District heating network installation and reconstruction services delivering efficient, reliable, and sustainable energy solutions.
• Hydrogen Full EPC services for hydrogen generation and distribution projects, including pipeline construction and implementation for hydrogen as a key energy source.
• Battery Energy Storage Systems (BESS) BESS project development with own projects in Lithuania (30 MW and 60 MW), plus full EPC services for BESS projects and comprehensive operation and maintenance support.
• Operation & Maintenance (O&M) Comprehensive O&M services for photovoltaic parks, wind turbine generator parks, high-voltage substations, and battery energy storage systems, with preventive and corrective maintenance, performance monitoring, and asset management to ensure maximum performance and reliability throughout asset lifetime.

Quantifiable outcome

• Hundreds of kilometers of gas pipelines constructed across Europe
• +2 more outcomes

Named customers17 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered flagship and core.

• LitgridflagshipStrategic or Co-development Partner · 14 May 2026DS1 Service signed a long-term contract with Litgrid (Lithuanian electricity transmission system operator) for O&M services of substations in the southern Lithuania region. The contract is valued at approximately 12 million EUR over 5 years for maintenance of high-voltage substations.
• CATL (Contemporary Amperex Technology)coreTechnology or IntegrationDS1 is implementing BESS projects using CATL (Contemporary Amperex Technology) battery technology. DS1 began installing 30MW/60MWh CATL BESS systems in Lithuania, demonstrating a strategic supplier relationship for battery energy storage solutions.
• CubEnergycoreTechnology or IntegrationCubEnergy supplies battery containers and skid inverters for BESS projects, as seen in the 48 MW/135 MWh BESS project with E energija.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• ABB: Global electrification, substation, and grid integration supplier with strong European presence. Comparable to DS1 on substation build, power transformer integration, and grid connection services, but at a significantly larger scale and with proprietary hardware.
• VINCI Energies: European infrastructure services arm of VINCI delivering energy, telecom, and industrial electrical works across the continent. Comparable on HV substation, cable, and renewable energy project execution in Europe, with broader portfolio and deeper resources than DS1.
• Quanta Services: Large US-listed infrastructure services firm for electric, gas, and renewable energy networks. Comparable to DS1's end-to-end utility infrastructure EPC plus O&M model, particularly for HV transmission, substations, and BESS, though operating primarily in North America.
• GE Vernova: Global power equipment and grid solutions provider covering generation, transmission, and renewable integration. Overlaps with DS1 on HV substations, wind interconnection, and BESS integration for utilities and developers.
• Siemens Energy: Global OEM and EPC incumbent for HV substations, grid technology, and large renewable infrastructure. Overlaps with DS1 on substation EPC and balance-of-plant work but operates at much larger scale with proprietary equipment.

Direct peers

• Sweco: European engineering, design, and project management consultancy with strong Nordic and Baltic energy infrastructure practice. Comparable to DS1 on renewable and grid interconnection project advisory and owner-engineering services for utilities and developers.
• Linxon: Substation EPC joint venture (Hitachi Energy / SNC-Lavalin) focused on utility-scale HV and EHV substation construction globally. Direct comparable to DS1's Šķilbēni 330 kV and Antkalniškiai 102 MVA substation projects for renewable and TSO clients.
• Mortenson Construction: US-based EPC contractor with large wind, solar, and BESS practices serving IPP and utility developers. Direct comparable to DS1's full EPC wind farm (Kelme-2 87 MW), solar park, and BESS delivery, with similar turnkey and balance-of-plant scope.
• Eltel Networks: Swedish-headquartered power and communication infrastructure services group operating across the Nordics, Baltics, Poland, and Germany. Direct peer to DS1 given overlapping HV substation build, cable works, and renewable interconnection EPC plus long-term O&M services for utility customers in adjacent geographies.

Regional players

• ENKA İnşaat: Turkish-based EPC contractor with significant energy infrastructure and pipeline projects across Eastern Europe, the Balkans, and the former USSR. Comparable to DS1 on large-diameter gas pipeline and HV substation delivery in overlapping SEE and Eastern European markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DS1 Service