Electromontaj
Electromontaj is a Romanian EPC contractor founded in 1949 that designs, builds, and maintains high-voltage transmission lines, substations, and renewable energy connections for national grid operators and energy developers across Romania, Europe, and the Middle East.
- Company typePrivate
- Founded1949
- HeadquartersBucharest, Romania
- Headcount1,001–5,000
- GTM typeB2B
- OfferingServices
What Electromontaj does
Electromontaj (legal name ELECTROMONTAJ S.A. BUCUREȘTI) is a privately held Romanian energy infrastructure EPC contractor founded in 1949, headquartered in Bucharest. The company designs, builds, and maintains high-voltage electrical infrastructure — overhead and underground transmission lines from 110 kV to 400 kV, electrical substations and transformer stations, wind and photovoltaic park connections, and hydroelectric power plant and pumping station retrofits. Notable technical capabilities include the construction of extreme-height transmission towers (150m tall, 320–350 ton Danube crossings) and execution of the most technically complex 400 kV line built in Romania in three decades (the 117 km Porțile de Fier – Anina – Reșița line through Mehedinți mountain terrain). The company owns integrated manufacturing assets: a galvanized steel lattice tower factory in Bucharest, a clamps and hardware factory in Câmpina, and one of the world's largest and most modern tower testing stations capable of testing towers up to 90m — serving international clients in Turkey, Spain, Bulgaria, Croatia, Jordan, and the UAE. Proprietary technology includes the LEAPOR compact lattice tower design for 110 kV lines that replaces concrete poles without requiring additional land acquisition.
The business model is anchored in competitive public-procurement tenders (reflecting regulated utility clients) and EPC contracts with long durations. Electromontaj wins infrastructure contracts from national transmission system operators (Transelectrica, Fingrid, NEPCO, TRANSCO UAE, TenneT), renewable developers (Vestas, DTEK Renewables), and hydro producers (Hidroelectrica, partnered with Končar Engineering). Distribution is via direct enterprise sales, consortium structures (with Siemens Energy, Končar, Vestas), and joint ventures (ELM Electromontaj Cluj SA). Recent disclosed contract values include 821.7M lei (two 400kV lines), 260M lei (STATCOM reactive power compensation with Siemens Energy), and EUR 97.88M (hydro pumping station retrofits for Hidroelectrica over 64 months). The customer base is concentrated in state-owned utilities with international diversification across Romania, Finland, Moldova, Jordan, UAE, Cyprus, Qatar, the Netherlands, and Egypt. Recorded revenue reached a record EUR 70 million in FY2021, with subsequent large multi-year contract awards indicating material scaling since.
The corporate group (Grupul EM) includes wholly owned subsidiaries EMFOR Montaj SA and Societatea de Servicii Financiare CONFIDENT INVEST București S.A., an 82.68%-owned subsidiary Electrotehnica Echipamente Electrice SA (acquired July 2022, Romania's oldest electrical equipment manufacturer), and a corporate partnership with Hidroconstrucția (joined November 2022 for hydropower construction). Leadership: CEO Ionuț Adrian Tănăsoaica was appointed in April 2022, having previously served as Deputy General Director and CFO. The group maintains 11 office locations across manufacturing, branch, and international operations, with 1,500+ engineers and a cumulative 35,000 project-years of experience.
Electromontaj firmographics
Firmographics- Name
- Electromontaj
- Legal name
- ELECTROMONTAJ S.A. BUCUREȘTI
- Website
- https://electromontaj.ro
- Company type
- Private
- Founded year
- 1949
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Electromontaj is a Romanian EPC contractor founded in 1949 that designs, builds, and maintains high-voltage transmission lines, substations, and renewable energy connections for national grid operators and energy developers across Romania, Europe, and the Middle East.
- Ownership category
- akta.pro rank
Electromontaj industry classification
Industry- Product category
- Electrical Infrastructure Construction
- NAICS
- Electric Power Transmission, Control, and Distribution (22112), Electric Bulk Power Transmission and Control (221121)
- SIC
- Electrical Work (1731), Power, Distribution & Specialty Transformers (3612)
- akta.pro primary industry
- Switching Stations & Reactive Power Facilities (Capacitor Banks, SVC/STATCOM) (IMAFAHAH)
- akta.pro secondary industries
- Poles, Towers & Structures (wood/steel/concrete poles, lattice towers, monopoles, crossarms) (EUADADAF), Substations, Transformers & Grid Step-Up Facilities (EHV Substations, GSU Transformers) (EUAMAFAE), Transmission Substations & High-Voltage Switchyards (EUADAAAF), Reactive Power & Power Quality Equipment (Capacitor Banks, Reactors, STATCOM/SVC, Harmonic Filters) (IMAGAAAG)
Keywords
Where Electromontaj is headquartered
LocationHeadquarters
- HQ city
- Bucharest
- HQ country
- Romania
- HQ region
- Europe
Offices12 records
Markets served
Electromontaj business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- EPC Electrical Infrastructure Projects: Engineering, Procurement and Construction contracts for high voltage transmission lines, electrical substations, and renewable energy connection installations. Revenue is project-based with long contract durations.
- Tower and Hardware Manufacturing: Design, production and commercialization of galvanized steel lattice towers, angle profiles, hardware clamps and fittings for conductors and OPGW. Mobile substations and electrical panels.
- Tower Testing Services: Independent testing station serving international clients - tests lattice towers up to 90 meters in height for certification
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Electromontaj product offering
Product offeringCore offering
Electromontaj designs, builds, and maintains high-voltage electricity transmission infrastructure (110kV to 400kV lines and substations), constructs grid connections for renewable energy parks, and retrofits hydroelectric power plants. The Group also manufactures galvanized steel lattice towers, conductors, clamps, fittings and mobile substations at its own facilities, and operates one of the world's largest independent tower testing stations that certifies lattice towers up to 90 m for clients across multiple countries.
Product overview
Electromontaj is a full-service energy infrastructure construction and engineering group offering integrated project delivery from design through construction and commissioning. The core offering comprises six interrelated services: (1) Design and construction of high-voltage overhead and underground power lines (110–400 kV), (2) Substation and transformer station design/construction, (3) Wind and photovoltaic renewable energy park infrastructure, (4) Hydroelectric plant and pumping station retrofits, (5) In-house manufacturing of galvanized lattice towers, conductors, clamps and fittings (serving both internal projects and external clients), and (6) Specialized tower testing up to 90 m height. The group also provides civil engineering services including bored foundations and horizontal directional drilling. Projects span Romania, Finland, the Netherlands, Jordan, UAE, and other international markets, with all towers manufactured in Electromontaj's own Bucharest factory and tested at their proprietary testing station.
Differentiator
Problem solved
Functional benefit
Products and services
- Design and Construction of High-Voltage Power Lines End-to-end design and construction of high-voltage overhead and underground power transmission lines from 110 kV to 400 kV for national grid operators and renewable energy developers in Romania and internationally.
- Substations and Transformer Stations Design and construction of electrical substations and transformer stations (110 kV, 220 kV, 400 kV), including new connection substations, switching stations, and rehabilitation of existing infrastructure for national and international clients.
- Wind and Photovoltaic Park Design and Construction Design and construction of renewable energy grid connection infrastructure — including the internal collection network, connection substations, and high-voltage lines — that links wind farms and photovoltaic plants to the National Power System.
- Hydroelectric Plant Retrofits and Irrigation Systems Retrofits and modernization of hydroelectric power plants and pumping stations, including turbine replacement, mechanical and electrical equipment upgrades, SCADA automation systems, and irrigation infrastructure projects.
- Metal Tower, Conductor, Clamp, and Fitting Production In-house design and production of galvanized metal lattice towers for power lines up to 765 kV, plus conductors, clamps, fittings, and OPGW hardware at Electromontaj's dedicated Bucharest and Câmpina manufacturing facilities, sold both to internal projects and external clients.
- Metal Tower Testing Station Independent testing and certification of metal lattice transmission towers up to 90 meters in height at one of the largest and most modern tower testing facilities in the world, sold as a professional service to international transmission-line developers and tower manufacturers.
- Special Works — Major River Crossings Specialized river and obstacle crossing works for transmission lines, including the Danube crossing at Cernavodă-Stâlpu (1,132 m span with 150 m, ~350-tonne towers), Borcea crossing, Isaccea 750 kV crossing and Nile River crossing in Egypt.
Quantifiable outcome
- 400,000+ km of transmission lines completed over 75+ years
- +3 more outcomes
Companies that use Electromontaj
Customer profileNamed customers12 records
Segments4 records
Ideal customer profiles4 records
Electromontaj technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Electromontaj partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core and minor.
- Siemens EnergycoreSiemens Energy – Electromontaj consortium for implementing Romania's first STATCOM reactive power compensation system at Sibiu Sud substation. The project valued at 260 million lei (254 million from Modernization Fund) stabilizes grid voltage and enhances renewable energy integration.
- HidroelectricacoreContract for retehnologizare of three large power pumping stations (Petrimanu, Jidoaia, Lotru-Aval) part of UHE Dorin Pavel (Lotru-Ciunget) complex. Project value: 97.88 million EUR, 64 months duration.
- ELM Electromontaj Cluj SAcoreJoint venture for construction of two major 400kV power lines: 260km Gădălin-Suceava (Romania's longest) and Suceava-Bălți interconnection with Moldova. Total contracts worth approximately 821.7 million lei.
- Končar Engineering Ltd.corePartnership for Vidraru hydroelectric retehnologizare project - one of Romania's largest hydro plants with 220MW installed capacity. Includes design, manufacturing, and installation of mechanical and electrical equipment.
- VestascorePartnership for designing and executing grid connection installations for the new Vifor wind farm (460MW, 72 turbines) in Buzău county, Romania. Electromontaj handling 400kV connection substations and transmission lines.
- Fingrid (Finland)corePartnership with Finnish national electricity transmission operator for 400+100kV Huittinen-Forssa transmission line (69km). Electromontaj's entry into Western European market through competitive bidding.
- DTEK RenewablesminorPartnership for Ruginoasa wind farm project in Romania - completed prior to Vifor project.
- HidroconstrucțiacoreEconomic and corporate partnership for portfolio expansion - Hidroconstrucția joined Electromontaj Group in 2022, bringing hydropower construction expertise.
- ElectrotehnicacoreAcquisition of majority stake (82.68%) in Electrotehnica Echipamente Electrice SA - Romania's oldest manufacturer of electrical equipment, transformers and coils.
- Siemens Energy and Energotech (Moldova)minorPartnership for modernization of 330kV power station in Chișinău, Moldova. First project outside Romania for Electromontaj.
Scale indicators19 records
Recent moves7 records
Expansion highlights6 records
Electromontaj competitors and assessment
Company assessmentDirect peers
- Sterlite Power: India-based transmission infrastructure developer and EPC contractor that builds and owns HV transmission lines and substations; highly comparable business model combining EPC, tower manufacturing, and utility-scale project execution.
- Romelectro: Romanian EPC contractor for power generation, HV substations, and transmission infrastructure; competes directly with Electromontaj in the domestic Romanian tender market for similar TSO and generation clients.
- Elecnor: Spanish EPC contractor executing HV transmission lines, substations, and renewable energy grid connections across Europe, the Americas, and Africa; comparable in scale, international footprint, and project mix to Electromontaj.
- Kalpataru Power Transmission: Indian EPC specialist for HV transmission lines, substations, and oil & gas pipelines with international execution in Africa, the Middle East, and Europe; closely parallels Electromontaj's T&D EPC and cross-border project delivery.
Broad incumbents
- Hitachi Energy: World-leading provider of grid integration, transformers, and HV substations/switchgear serving the same transmission utilities; directly overlaps with Electromontaj's substation and STATCOM/FACTS delivery scope.
- GE Vernova: Supplies grid equipment, HV substations, and renewable interconnection solutions to utilities globally; competes with Electromontaj on transmission and renewable grid-connection projects across Romania and Europe.
- VINCI Energies: European infrastructure contractor delivering HV substations, transmission, and energy infrastructure projects; comparable Western European competitor as Electromontaj expands into the EU TSO market.
- Siemens Energy: Electromontaj's STATCOM consortium partner; global supplier of grid technologies, transformers, and HV solutions to TSOs, with overlapping capabilities in substation, reactive power, and grid modernization projects.
- Prysmian Group: Global leader in power and telecommunications cables, with significant exposure to HV/EHV cable systems for transmission and grid interconnection; comparable as a major infrastructure supplier for the same TSO customers Electromontaj serves.
Regional players
- Instal Electric Group: Romanian electrical contractor delivering HV substations, transmission lines, and energy infrastructure primarily in Romania and Moldova; directly comparable regional peer for Electromontaj's core domestic EPC business.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Electromontaj social profiles
Digital presenceElectromontaj compliance and trust
Trust signalCompliance2 records
Electromontaj financial estimates
Financial estimateRevenue estimate
Valuation estimate
Electromontaj leadership team
Management profileNumber of profiles
Profiles4 records
Electromontaj subsidiaries and ownership
Company hierarchySubsidiaries6 records
Electromontaj funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Electromontaj M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Electromontaj
What does Electromontaj do?
Electromontaj designs, builds, and maintains high-voltage electricity transmission infrastructure (110kV to 400kV lines and substations), constructs grid connections for renewable energy parks, and retrofits hydroelectric power plants. The Group also manufactures galvanized steel lattice towers, conductors, clamps, fittings and mobile substations at its own facilities, and operates one of the world's largest independent tower testing stations that certifies lattice towers up to 90 m for clients across multiple countries.
Is Electromontaj a public or private company?
Electromontaj is a private company. It is classified as unknown and is currently operating.
When was Electromontaj founded?
Electromontaj was founded in 1949. It employs 1,001 to 5,000 people.
Where is Electromontaj based?
Electromontaj is headquartered in Bucharest, Romania, in the Europe region.
How does Electromontaj make money?
Three revenue lines are on record. EPC Electrical Infrastructure Projects are the primary driver. The others are tower and Hardware Manufacturing and tower Testing Services.
Who are Electromontaj's main competitors?
Direct peers on record are Sterlite Power, Romelectro, Elecnor and Kalpataru Power Transmission. Broad incumbents are Hitachi Energy, GE Vernova, VINCI Energies, Siemens Energy and Prysmian Group. Instal Electric Group is listed as a regional player.
Does Electromontaj have an API?
No public API is recorded for Electromontaj.
What industry is Electromontaj in?
Electromontaj's product category is Electrical Infrastructure Construction. Its primary akta.pro industry code is IMAFAHAH, Switching Stations & Reactive Power Facilities (Capacitor Banks, SVC/STATCOM), with a secondary code of EUADADAF, Poles, Towers & Structures (wood/steel/concrete poles, lattice towers, monopoles, crossarms). Its NAICS code is 22112 and its SIC code is 1731.