DS1

What DS1 does

DS1 (legal entity UAB DS1) is a privately-held Lithuanian energy infrastructure EPC contractor founded in 1991 in Vilnius. The company delivers full Engineering, Procurement, and Construction services across pipelines (gas, hydrogen-ready, biomethane, district heating), high-voltage cable works, power substations and transformers, solar and wind parks, and battery energy storage systems (BESS). Its operational footprint spans Lithuania, Latvia, Greece, Denmark, and Romania through local subsidiaries (SIA DS1 Latvia, DS-1 A.E. Greece, DS1 Denmark, DS-1 GAZ S.R.L. Romania), with project delivery also recorded in Bulgaria, Poland, Germany, and Estonia. Notable technical capabilities include semi-automatic and automatic welding for large-diameter pipelines (DN500 to DN1200), ISO 3834-2 fusion welding certification, VERT-certified electrical installation works up to 35 kV, and BESS integration with major suppliers including CATL and CubEnergy at capacities ranging from 30 MW/68 MWh to 60 MW/120 MWh.

DS1 generates revenue primarily through one-time EPC project contracts (gas pipelines, substations, renewable park grid connections, BESS installations, biomethane and hydrogen projects), supplemented by recurring operation and maintenance (O&M) services delivered through its DS1 Service subsidiary. Its go-to-market is enterprise-direct, targeting transmission system operators (Litgrid, Augstsprieguma tīkls), distribution system operators (ESO), renewable energy developers (Enefit Green, Green Genius, E energija, Evecon, Modus Group, Elektrum Lietuva, Tausolos Saulė, Axioma Service), gas infrastructure firms (Tranzgaz/Kalyon, AVAX, HABAU, PER AARSLEFF), and real estate developers. The company holds competitive advantages in the form of multi-jurisdictional track record, fast-track contractor status with Lithuanian DSO ESO (via subsidiary DS1 Green), and an extensive ISO and industry certification stack (9001, 14001, 45001, 27001, 50001, plus Achilles and IPLOCA credentials).

The business is governed by co-founder and Commercial Director Petras Sabalys, who co-founded the firm at its 1991 inception. The company operates a project-by-project custom pricing model with multi-year contract cadences, and pursues growth via geographic expansion (recently Kaunas branch opening, Latvia substation projects), product-line extension into BESS and hydrogen/biomethane verticals, and conversion of EPC clients into multi-year O&M contracts — an initiative anchored by the May 2026 long-term Litgrid agreement.

Name

DS1

Legal name

UAB DS1

Website

https://ds-1.lt

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

101–250 employees

Short description

DS1 is a Lithuanian-founded EPC contractor delivering energy infrastructure — pipelines, substations, solar/wind parks, BESS, hydrogen and biomethane projects — for European TSOs, DSOs, renewable developers, and gas operators across five countries, with supplementary O&M services.

Ownership category

akta.pro rank

Product category

Energy Infrastructure Construction

NAICS

Power and Communication Line and Related Structures Construction (237130), Electric Power Transmission, Control, and Distribution (22112)

SIC

Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

Substations, Transformers & Grid Step-Up Facilities (EHV Substations, GSU Transformers) (EUAMAFAE)

akta.pro secondary industries

Grid Interconnection & Collector Substation EPC (Utility-Scale Renewables) (EUAEABAK), Distribution Substations & Switching Stations (MV) EPC (EUAEACAC), Grid Interconnection, Power Quality & Electrical Infrastructure Service (Transformers, Switchgear) (TLAKAMAM), Pole, Tower & Structure Installation / Replacement (Distribution) (EUAEACAE)

Keywords

• Energy infrastructure construction
• EPC pipeline services
• Solar wind park construction
• Battery energy storage EPC
• High-voltage cable installation

Headquarters

HQ city

Vilnius

HQ country

Lithuania

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Infrastructure, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. EPC Project Contracts: DS1 generates primary revenue through full Engineering, Procurement, and Construction (EPC) contracts for energy infrastructure projects including gas pipelines, cable installations, substations, solar/wind parks, BESS installations, and hydrogen projects. Projects are typically one-time, large-scale contracts with defined scopes from design through commissioning.
2. Operation & Maintenance Services: Recurring O&M contracts for gas infrastructure, renewable energy assets (PV parks, wind parks), and battery energy storage systems. Services include preventive and corrective maintenance, performance monitoring, and asset management to ensure maximum performance and reliability throughout asset lifetime.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

DS1 is an energy infrastructure EPC (Engineering, Procurement, and Construction) contractor that delivers turnkey construction services for pipelines (gas, biomethane, hydrogen), high-voltage cable lines, power transformers, solar and wind parks, Battery Energy Storage Systems (BESS), district heating networks, and high-voltage substations. The company also provides operation and maintenance (O&M) services for gas and renewable energy assets across Europe through its DS1 Service subsidiary, and fast-track ESO grid connection services through its DS1 Green subsidiary.

Product overview

DS1 is an international energy infrastructure company offering a comprehensive portfolio of construction and maintenance services across Europe. The main services include Pipelines (gas pipeline construction), Solar & Wind Parks (EPC for PV and wind parks), Cable Works (high-voltage power cable installation), Power Transformers (installation and maintenance), District Heating (network installation), Hydrogen (generation and distribution EPC), Battery Energy Storage Systems (BESS development and EPC), and Operation & Maintenance services. DS1 operates through two sub-brands: DS1 Green (specializing in electrical network connections to ESO grid with fast-track contractor status) and DS1 Service (providing O&M for PV, wind parks, and HV substations).

Differentiator

Problem solved

Functional benefit

Brands

• DS1 Green: Member of DS1 group specializing in installation of electrical networks up to 35kV, fast-track contractor approved by ESO for connecting electrical equipment to distribution networks
• DS1 Service

Products and services

• Pipelines Gas pipeline construction services including specialized automatic welding and turnkey solutions, with hundreds of kilometers constructed across Europe for gas infrastructure operators and developers.
• Solar & Wind Parks Full EPC services for photovoltaic (PV) parks and wind parks, handling projects from start to finish with seamless integration and optimal performance for renewable energy developers.
• Cable Works High-voltage power cable installation services ensuring efficient and secure energy transmission across Europe, including 33 kV cable lines, fiber optic cables, and overhead line reconstruction up to 330 kV.
• Power Transformers Installation and maintenance of power transformers essential for modern energy networks and renewable energy integration, including 56 MVA to 70 MVA units for BESS installations.
• District Heating District heating network installation leveraging advanced technology and skilled workforce for efficient, reliable, and sustainable energy solutions, including the Vilnius district heating network renovation (DN800).
• Hydrogen Full EPC services for hydrogen generation and distribution projects encompassing design to final implementation for safe and efficient hydrogen delivery, including hydrogen-ready pipelines such as the 95 km DN750 project in Greece.
• Battery Energy Storage Systems (BESS) Development of BESS projects and full EPC services including 30 MW, 48 MW, 50 MW, and 60 MW installations with 68 MWh to 135 MWh storage capacities, including comprehensive operation and maintenance support for long-term performance and reliability.
• Operation & Maintenance O&M services for gas sector and renewable energy assets including photovoltaic parks, wind parks, and BESS, with goal to become largest O&M provider in the Baltic states; includes preventive and corrective maintenance and long-term contracts such as the Litgrid southern region substation maintenance contract.
• DS1 Green DS1 Group member specializing in connecting electrical equipment to ESO networks, with fast-track contractor status and VERT certificates for electrical network installation works up to 35 kV, serving real estate and renewable energy developers.
• DS1 Service Provides comprehensive O&M services for photovoltaic (PV), wind turbine generator (WTG) parks, and High-Voltage substations, ensuring maximum performance and reliability of renewable energy assets throughout their lifetime.

Quantifiable outcome

• One of the first BESS projects connected to Lithuania's transmission network
• +2 more outcomes

Named customers19 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• DS1 GreencoreOthersDS1 Green is a subsidiary within the DS1 group specializing in connecting electrical equipment to ESO networks. Holds fast-track contractor status with ESO and all necessary VERT certificates for electrical network installation works up to 35kV. Provides design work and efficient project implementation for real estate and renewable energy developers.
• DS1 ServicecoreOthersDS1 Service provides comprehensive operation and maintenance (O&M) services for PV parks, wind turbine generators, and high-voltage substations. Part of DS1 group focusing on ensuring maximum performance and reliability of renewable energy assets throughout their lifetime.
• ESO (Energijos Skirstymo Operatorius)coreChannel Partner/ Reseller/ DistributorLithuanian distribution system operator. DS1 Green holds fast-track contractor status approved by ESO, enabling efficient grid connections for renewable energy projects. DS1 Service signed long-term contract with Litgrid (parent) for substation maintenance in Lithuania's southern region.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Eltel Group: Nordic/Baltic-based infrastructure service company building and maintaining power and communication networks across Northern Europe. Overlapping capability in substations, distribution lines and HV cable installation across similar geographies.
• Kauno Tiltai: Lithuania's largest infrastructure construction company, active in bridges, roads, and energy infrastructure. Comparable as a domestic Lithuanian heavy-infrastructure EPC competitor with overlapping capabilities.
• MT Group: Lithuanian energy infrastructure construction company operating in substations, power lines, and renewable connections in the same Baltic geography as DS1. Most direct in-country peer for transmission and distribution EPC work.
• Enersense International: Finnish provider of energy solutions including transmission networks, wind and solar EPC, and energy storage. Comparable business mix covering renewables, grid construction and O&M services in Nordic/Baltic markets.
• Per Aarsleff: Danish infrastructure contractor with significant pipeline and foundation operations across Europe. Directly comparable in pipeline welding, large-diameter gas pipeline EPC, and renewable substation construction; an existing DS1 client and Danish regional peer.

Broad incumbents

• ABB: Global electrification and automation company supplying and often delivering substations, transformers, and BESS solutions. Adjacent incumbent that competes in EPC deliveries combining power equipment with grid construction across Europe.
• STRABAG SE: Major European construction group with a dedicated energy infrastructure division executing substations, pipelines and renewables. Larger, broader portfolio but competes for the same large-scale tenders as DS1 in Central and Eastern Europe.
• VINCI Energies: French-headquartered energy and electrical infrastructure arm of VINCI, executing substations, grids and renewable connections globally. A broad incumbent competitor with overlapping service lines in BESS, HV substations and grid modernization.
• Siemens Energy: Global energy technology and EPC player active across transmission, substations, grid technologies and hydrogen. Larger scale, but competes for high-voltage substation and grid EPC tenders in Europe.

Regional players

• Skonto Būve: One of Latvia's largest construction groups, with infrastructure and energy projects. Comparable in regional market positioning for energy and civil infrastructure in the Baltics, though broader in scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/ds-1

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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