Annual rank6
Croatia · Industrials
Koncar D&ST
Manufactures medium-power, distribution and special transformers, including electric-traction transformers and auxiliary autotransformers.
FY2022–FY2025
FY2022–FY2025
FY2022–FY2025
current context only
Company profile
Transformer families, factory capabilities and export projects
KONČAR – Distribution and Special Transformers Inc. is the Zagreb-listed transformer issuer profiled here and a member of KONČAR Group. It makes medium-power, oil-immersed, dry-type and special transformers for grids, renewables, rail and industrial duties, then supports transport, installation, field testing and commissioning. The official group describes its members as independently managed companies; this profile therefore excludes the separate KONČAR – Power Transformers and KONČAR – Transformer Tanks businesses.
Transformer families
Four ranges span grid, renewable, rail and industrial duties
Medium-power oil-immersed transformers and autotransformers reach 160 MVA and 170 kV. Distribution ranges cover oil-immersed units from 50 kVA to 8 MVA and dry-type units from 50 kVA to 3.15 MVA. The special range adds grounding, rectifier, auxiliary, generator, test-station, offshore, vibration-resistant, mobile-substation and electric-traction designs, plus MV reactors.
- Medium-power transformers Oil-immersed transformers and autotransformers up to 160 MVA and 170 kV
- Oil-immersed distribution transformers Grid, renewable-energy and charging applications from 50 kVA to 8 MVA
- Dry-type distribution transformers Naturally air-cooled indoor designs and published rating limits
- Special transformers and reactors Offshore, traction, grounding, rectifier and harsh-environment designs
Manufacturing and testing
In-house core and winding work feeds a dedicated test station
At the Zagreb plant, high-permeability steel cores are cut on in-house automated lines and aluminium or copper windings are made on automatic machines before assembly and final inspection. A plant visit documents core cutting and assembly, winding, transformer assembly and the test station. A 2026 Swedish unit passed routine, type and special tests to IEC 60076; medium-power deliveries can extend to field testing and commissioning.
- Inside the Zagreb production flow Workshops, core and winding processes, assembly and test station
- Routine, type and special testing Factory Acceptance Test evidence for a 10 MVA Swedish project
- Quality systems and lifecycle approach ISO management systems, process control and product lifecycle commitments
Named projects and customers
Klimapark Steinhöfel and Göteborg turn specifications into use cases
For Klimapark Steinhöfel in Brandenburg, D&ST contracted four 125 MVA transformers that connect up to 753 MWp through E.DIS's network; the first two were delivered, installed and commissioned in May 2026. For Göteborg Energi's K20 substation, it supplied a 40 MVA, 145 kV unit using biodegradable insulating liquid. Auxiliary and earthing transformers also serve Qatar's 800 MWp Al Kharsaah solar plant.
- Klimapark Steinhöfel Four 125 MVA units for Europe's largest agrivoltaic project
- Göteborg Energi's K20 substation A 40 MVA, 145 kV unit for a protected-water setting
- Al Kharsaah Solar Power Plant Auxiliary and earthing transformers for an 800 MWp project in Qatar
Footprint and positioning
A separately listed KONČAR member with a 110-country record
D&ST says it has delivered more than 4,000 medium-power transformers totalling 85,000 MVA to over 110 countries in 40 years, and positions itself among Europe's leading manufacturers up to 160 MVA and 170 kV. Its ordinary and preferred shares trade on the Zagreb Stock Exchange as KODT and KODT2. KONČAR Group identifies D&ST as one independently managed member, not as the separate large-power-transformer or transformer-tank companies.
- Issuer profile and positioning Entity details, annual output, 110-country reach and current portfolio
- D&ST investor relations The issuer's KODT and KODT2 listings and disclosure centre
- KODT and KODT2 share structure Ordinary and preferred shares on the Zagreb Stock Exchange
- KONČAR Group company boundary Independently managed members and the separate transformer businesses
Official profile sources: Koncar D&ST official website · Special transformers | KONČAR
Current 2026 update
What has changed in 2026?
Contract announced 1 July 2026 · 1 July 2026
Contract announced 1 July 2026latest official update
4company-specific highlights
+24%2026 stock return · context only
First-quarter sales
Reported sales revenue reached EUR 142.5 million, 10.1% above the comparable quarter; Novi Feromont's operations entered the consolidation from 1 January 2026.
Order backlog
The backlog stood at EUR 1.14 billion at quarter-end, 22.8% above the prior-year level.
Margins
Operating margin fell to 33.4% from 34.9%, net margin to 27.6% from 29.0%, and EBITDA margin to 35.0% from 36.1%.
Elia transformer contract
Elia Asset awarded a power-transformer supply contract with a binding quantity worth more than EUR 15 million; deliveries are expected from 2028 to 2032.
Official 2026 sources: KONČAR D&ST Group unaudited interim management report for Q1 2026 · 27 April 2026 · KONCAR D&ST and Elia Asset sign power-transformer supply contract · 1 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 | 6 | +101% | +509% | +1152% |