Annual rank30
Spain · Industrials
Arteche Lantegi Elkartea
Makes measurement, monitoring, automation and reliability systems for electricity transmission and distribution networks.
FY2022–FY2025
FY2022–FY2025
FY2022–FY2025
current context only
Company profile
Measurement, automation and grid reliability from product to project
Arteche is a Basque electrical-equipment group serving the path from generation to the final grid user. It combines conventional and optical instrument transformers, medium-voltage sensors, relays and IEC 61850 automation with engineering, commissioning and training. Its grid-reliability work adds harmonic filters, capacitor banks, reclosers and flywheel storage, linking decades of measurement hardware to renewable integration, digital substations and critical power quality.
Products and technology
From 800 kV transformers to sampled values over fibre
Conventional high-voltage designs cover current, voltage, combined, oil-paper and gas-insulated transformers up to 800 kV. The passive SDO-OCT instead measures current optically without oil or gas, can handle AC or DC and feeds an SDO-MU. That merging unit converts the optical signal into IEC 61850 Sampled Values with precision-time synchronisation and redundant communications, bringing measurement directly into a digital-substation process bus.
- High-voltage instrument transformers Current, voltage, combined, gas-insulated and optical designs up to 800 kV
- SDO-OCT optical transformer Passive optical measurement, solid insulation, AC or DC and no oil or gas
- SDO-MU merging unit IEC 61850 Sampled Values, time synchronisation and redundant communications
- ▶ VideoWatch: optical current measurement Official English explanation of protection and metering applications
Applications and customers
The same stack reaches substations, solar plants and wind farms
At Acciona's Puerto Libertad solar project in Mexico, saTECH automation connected plant substations to CENACE and the site SCADA, while smARTop capacitor banks supported grid-code work. At Brazos Repower in Fluvanna, Texas, Arteche supplied two 31 MVAr Type-C filters at 138 kV. At Statkraft's 55.2 MWp Talayuela II plant in Cáceres, PQ-Switch mitigates capacitor-bank switching transients.
- Substation automation systems saTECH devices, panels, integration, engineering, commissioning and support
- Puerto Libertad solar substations Acciona, CENACE integration, IEC 61850, saTECH and smARTop in Mexico
- Brazos Repower wind farm Two 31 MVAr Type-C harmonic filters at 138 kV in Texas
- Talayuela II solar plant PQ-Switch transient mitigation for Statkraft in Cáceres
- ▶ VideoWatch: substation automation Official English tour of engineering, panels, testing and commissioning
Footprint and operating model
Local engineering and testing sit inside a four-continent network
Arteche says customers in more than 175 countries are served through over 80 technical-commercial offices. Its company directory reaches from Mungia and Vitoria-Gasteiz to Tepeji del Río, Curitiba, Dalian, Cikarang and Eveleigh. Seven R&D centres focus on digital monitoring, asset management, cybersecurity, direct current and harmonics. In Tepeji, a 19,000 m² capacity expansion includes production buildings and a high-voltage impulse laboratory that can reproduce transients up to 2,800 kV.
- Meet the Arteche group Customer-country reach, technical-commercial offices and operating model
- Global company directory Named companies and addresses across Europe, the Americas, Asia and Oceania
- Innovation network Seven R&D centres and priorities from digital twins to direct current
- Tepeji laboratory and expansion Mexican production capacity and high-voltage impulse testing for North America
Strategy and growth
Expansion adds sensing, protection and fast grid support
The 2024–2026 plan targets new geographies, technologies and market segments. Arteche's recent moves include 100% of RTR Energía for power quality, 35% of Uptech Sensing for distributed fibre-optic monitoring, 100% of Germany's SEG for medium-voltage protection relays and a minority stake in Finland's Teraloop. Teraloop's flywheel system pairs magnetic-levitation, hubless storage with power electronics for sub-10-millisecond response in frequency and voltage support.
- Strategic Plan 2024–2026 The issuer's roadmap across business lines and geographies
- Uptech, RTR and Teraloop English issuer filing covering sensing, power quality and storage moves
- SEG Electronics acquisition Medium-voltage protection relays, DACH reach and data-centre applications
- Teraloop flywheel storage Grid stability, frequency control, voltage support and response time
- ▶ VideoWatch: flywheel energy storage Official English explanation of fast grid balancing with Teraloop FESS
Official profile sources: Arteche: 75 Years of History Working Towards a More Innovative, Sustainable and International Future · Products and solutions — Arteche
Current 2026 update
What has changed in 2026?
SBTi-validated targets · 10 July 2026
SBTi-validated targetslatest official update
3company-specific highlights
+37%2026 stock return · context only
SEG Electronics acquisition
Arteche acquired 100% of SEG Electronics for an equity value of EUR 50.6m, adding medium-voltage protection relays and strengthening its Central European presence.
Accelerated share placement
Arteche completed a EUR 100m placement, with a capital increase equal to 1.77% of share capital; about one-third was new shares and two-thirds existing shares.
SBTi-validated targets
SBTi validated Arteche's targets: absolute Scope 1-2 emissions down 43% and Scope 3 down 25% by 2030 from 2023, with 90% reductions for both by 2050.
Official 2026 sources: Arteche acquires SEG Electronics · 12 June 2026 · Insider Information: Share Placement · 25 June 2026 · Arteche climate targets validated by the Science Based Targets initiative · 10 July 2026
Annual record
Ranking history
Future editions add rows; they do not rewrite the 2026 record.
| Edition | Measurement period | Rank | Revenue growth | Net-income growth | Stock return |
|---|---|---|---|---|---|
| 2026 | FY2022–FY2025 | 30 | +47% | +489% | +509% |