dst s.a.

What dst s.a. does

dst s.a. (legal name Domingos da Silva Teixeira, S.A.) is a Portuguese engineering and construction company headquartered in Palmeira, Braga, operating as part of the dstgroup conglomerate. The firm delivers projects across three core service areas: Civil Construction (commercial, residential, industrial, and public buildings), Infrastructures (roads, railways, airports, maritime ports, bridges, and telecommunications networks), and Water, Environment & Energy (wastewater treatment plants, pumping stations, irrigation networks, sanitary landfills, mechanical-biological treatment facilities, wind farms, solar parks, and gas pipelines). Notable technical accomplishments include the Graciosa Energy System — described as the first worldwide hybrid wind/solar/battery installation for isolated grids (4.5 MW wind, 1 MW solar, 3.2 MWh storage) — and the 263 MW Alto Minho I wind farm across five sub-parks.

The company sells exclusively on a B2B, project-based model, with revenue recognized on contract completion. GTM is sales-led: competitive bidding on Portuguese public tenders, direct negotiations with municipal and regional government entities, and established relationships with private-sector clients such as EDP and VentoMinho. Pricing is project-specific and won through competitive processes, with no standardized enterprise tiers. The firm operates from a ~63-hectare dstgroup industrial complex in Braga plus Lisbon offices (city center and Seixal industrial park), and draws on group subsidiaries including dst solar, dte telecom, tgeotecnia, bysteel, tbetão, tmodular, and tagregados for integrated delivery. Customer base is dominated by government/municipal and large-enterprise clients (e.g., AGERE, SULDOURO, BRAVAL, EDIA, Câmara Municipal de Lisboa, Gondomar, EDP, VentoMinho, Ensulmeci), and the firm is co-financed through Portugal 2020 and PRR (Plano de Recuperação e Resiliência) programs including R&D projects Baterias 2030, ReNew, New Generation Storage, and R2UTechnologies modular system.

Name

dst s.a.

Legal name

Domingos da Silva Teixeira, S.A.

Website

https://dstsa.pt

Company type

Private

Operating status

Operating

Headcount range

101–250 employees

Short description

dst s.a. is a Portuguese B2B engineering and construction firm, part of dstgroup, delivering civil construction, infrastructure, and water/environment/energy projects (wind farms, solar parks, WWTPs, gas pipelines) for Portuguese municipalities, government agencies, and large enterprises via public tenders and direct contracts.

Ownership category

akta.pro rank

Product category

Construction Services

NAICS

Power and Communication Line and Related Structures Construction (237130), Water and Sewer Line and Related Structures Construction (237110), Utility System Construction (2371), Site Preparation Contractors (23891), Architectural, Engineering, and Related Services (5413)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Distribution Network Construction (Feeders, Laterals, Service Drops) (IMAFAHAC)

akta.pro secondary industries

Right-of-way access, foundations & civil works for T&D projects (EUADAKAJ), Pole, Tower & Structure Installation / Replacement (Distribution) (EUAEACAE), T&D project/program management & owner’s engineering (EPCM/PMC) (EUADAKAF), ROW Access, Road & Trail Construction/Maintenance (EUADAOAE), Engineering design services (line design, substation design, civil/structural) (EUADAKAG)

Keywords

• Civil construction services
• Infrastructure construction
• Renewable energy construction
• Water treatment infrastructure
• Environmental engineering services

Headquarters

HQ city

Braga

HQ country

Portugal

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Contracts: Project-based revenue from engineering and construction contracts for public and private sector clients. Projects span civil construction, infrastructure, water treatment, environmental solutions, and renewable energy. Revenue is recognized upon project completion with typical contract durations ranging from months to several years.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

DST S.A. is a Portuguese engineering and construction company that delivers civil construction (commercial, residential, industrial, and public buildings), infrastructure (roads, railways, airports, maritime ports, bridges, telecom networks), and specialized water, environment, and energy projects (wastewater treatment plants, wind farms, solar parks, hydraulic infrastructure, sanitary landfills, gas pipelines). Services span the full project lifecycle from design through construction and commissioning, with the company acting as general contractor and specialist subcontractor for public and private sector clients across Portugal.

Product overview

DST S.A. is an engineering and construction company operating across three core service areas: Civil Construction (Construção Civil), Infrastructures (Infraestruturas), and Water, Environment and Energy (Água, Ambiente e Energia). The company operates as a general contractor and specialist subcontractor for construction projects spanning commercial and residential buildings, public infrastructure, road/railway/maritime works, telecommunications networks, and specialized environmental-energy projects. Under the Water, Environment and Energy umbrella, DST offers specialized services for wind farm construction, solar farm installation, hydraulic infrastructure (wastewater treatment plants, pumping stations, irrigation systems), environmental facilities (sanitary landfills, MBT centers, biogas recovery), and gas pipelines. The company also develops projects through related entities like dst solar (photovoltaic) and dstelecom (telecommunications networks). The portfolio includes landmark projects such as the Graciosa hybrid energy system (first worldwide), EDP's new headquarters designed by Alejandro Aravena, and numerous renewable energy and environmental treatment facilities across Portugal.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Construction (Construção Civil) General civil construction services including commercial buildings, residential housing, public buildings, retail spaces, and industrial/logistics facilities for public and private sector clients across Portugal.
• Infrastructures (Infraestruturas) Infrastructure construction including road and urban projects, railway works, airport infrastructure, maritime-port facilities, bridges and art structures, and telecommunications networks for public and private clients.
• Water, Environment and Energy (Água, Ambiente e Energia) Specialized infrastructure in water treatment, environmental management, renewable energy (wind farms, solar parks), and gas infrastructure for public and private clients across Portugal.
• Wind Farm Construction Services Construction and civil works for wind farms including turbine foundations, access roads, drainage systems, substations, and environmental restoration for renewable energy developers.
• Solar Farm Construction Services Construction of photovoltaic solar farms including earthworks, electrical infrastructure, drainage, fencing, and land rehabilitation for renewable energy developers and DST Group subsidiaries.
• Hydraulic Infrastructure Services Water infrastructure construction including wastewater treatment plants (WWTP), pumping stations, water supply systems, dams, and irrigation networks for public utilities and government clients.
• Environmental Infrastructure Services Environmental treatment facilities construction including sanitary landfills, mechanical-biological treatment (MBT) centers, organic recovery units, and biogas energy recovery systems for municipal and regional waste management entities.
• Gas Infrastructure Services High-pressure gas pipeline construction and installation for energy and industrial clients in Portugal.
• Wastewater Treatment Plants (WWTP) Design and construction of wastewater treatment plants of varying capacities (population equivalents ranging from 20,000 to 90,000+ PE) for municipal water utilities and government entities.

Quantifiable outcome

• First worldwide hybrid energy system (Graciosa) with 100% renewable integration capability
• +1 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles2 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 core.

• dst solar, s.a.coreStrategic or Co-development PartnerDST Solar, part of the DST Group, collaborates on photovoltaic projects. DST S.A. has constructed solar farms including the 2MW Riba d'Ave Solar Farm for dst solar.
• dte - DST TelecomunicaçõescoreTechnology or Integrationdte (DST Telecomunicações) specializes in electrical installations and telecommunications infrastructure. Collaborates on complex projects including tunnel systems, building electrical works, and telecommunications network construction.
• EnerconcoreTechnology or IntegrationEnercon is a key partner for wind farm projects. DST S.A. serves as contractor for civil works and subcontractor for wind turbine foundation construction on multiple Enercon wind farm projects across Portugal.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• Mota-Engil: Largest Portuguese construction and infrastructure group, with comparable civil construction, infrastructure (roads, rail, ports), and water/environment concessions. Operates at much larger scale than DST but competes for the same Portuguese public tenders and energy infrastructure projects.
• Conduril: Portuguese construction and engineering firm with strong positioning in geotechnical, tunnels, dams, and environmental infrastructure. Competes with DST for complex civil engineering and water infrastructure tenders in Portugal and select African markets.
• Teixeira Duarte: Portuguese diversified construction group with activities in civil construction, infrastructure, concessions, and real estate. Directly comparable to DST in serving Portuguese public and private clients across buildings, transport, and water infrastructure.
• Casais - Engenharia e Construção: Portuguese general contractor with civil construction and infrastructure operations, including the absorbed Soares da Costa business. Directly competes with DST for Portuguese building, infrastructure, and public-sector tenders.
• Somague (Grupo Sacyr): Portuguese branch of Spanish Sacyr's construction operations, active in civil construction, infrastructure concessions, and water. Competes with DST for major Portuguese public infrastructure projects.
• Ramalho Rosa Cobetar: Portuguese construction company specializing in buildings, infrastructure, and hydraulic works. Direct competitor for the same pool of Portuguese public and private construction tenders DST targets.

Broad incumbents

• Acciona Infraestructuras: Spanish global infrastructure and renewable energy group with significant wind farm construction and water treatment operations. Larger and internationally diversified, but competes with DST for Iberian renewable and water infrastructure tenders.
• Sacyr Infraestrutura: Spanish multinational with construction, concessions, and water businesses. Operates much more broadly than DST but competes in Iberian infrastructure tenders and is a holder of Portuguese construction assets.

Others

• EDP (Energias de Portugal): Major Portuguese utility and renewable energy developer and a key customer of DST (e.g., EDP HQ, wind farm projects). Not a competitor but a strategic adjacent participant in the same renewable infrastructure ecosystem.
• Enercon: German wind turbine OEM and a core technology partner for DST's wind farm civil works. Not a direct competitor but a critical counterpart whose product roadmap and supplier relationships directly shape DST's wind farm project pipeline.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/dstgrupo
• Facebookfacebook.com/dsteixeira.sa
• LinkedInlinkedin.com/company/dstsa
• Instagraminstagram.com/dstgroup

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 dst s.a.