Introduction
India has established itself as one of the most advanced and reliable transformer manufacturing hubs in the world. With a strong base of engineering talent, modern facilities, and globally certified production systems, Indian manufacturers today supply power, distribution, and specialty transformers to projects across North America, Europe, the Middle East, and Asia-Pacific.
Know About Top 20 Transformer Manufacturing Companies
in India
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These companies play a vital role in strengthening energy infrastructure, supporting renewable integration, and meeting the growing demand for efficient and sustainable power systems.
This article highlights the top 20 transformer manufacturing companies in India, recognized for their quality, innovation, and compliance with international standards such as ISO 9001, IEC 60076, and DOE 2016.
1. Zetwerk Manufacturing – Bangalore, India
Zetwerk leads the new generation of Indian transformer manufacturers with its ISO 9001, ISO 14001, and ISO 45001 certified facilities. The company specializes in power, distribution, dry-type, and amorphous core transformers for industrial and utility-grade applications.
With advanced automation, precision fabrication, and digital quality control, Zetwerk delivers export-ready transformers built to IEC, ANSI, and DOE standards, serving clients across North America, Europe, and the Middle East. Its vertically integrated model—from core manufacturing to final assembly—ensures faster lead times and unmatched consistency.
2. Bharat Heavy Electricals Limited (BHEL) – Haridwar, India
BHEL is one of India’s largest public-sector power equipment manufacturers. Its transformer division produces high-voltage power transformers up to 800 kV for utilities and transmission networks. With ISO 9001 and ISO 14001 certifications, BHEL’s transformers are used in national grids and international power projects.
3. Toshiba Transmission & Distribution Systems (TTDI) – Hyderabad, India
A subsidiary of Toshiba Corporation (Japan), TTDI manufactures power and distribution transformers for utilities and EPCs. Known for high-efficiency and low-loss designs, TTDI’s India facility is ISO-certified and supplies equipment to Asia, Europe, and Africa.
4. Siemens Energy India – Aurangabad, Maharashtra
Siemens Energy designs and produces power transformers up to 765 kV, with ISO-certified operations and advanced testing facilities. The company’s India plant supports both domestic grids and export requirements.
5. ABB Hitachi Energy India – Vadodara, Gujarat
ABB Hitachi Energy is a leading ISO-certified transformer manufacturer offering advanced technologies for transmission, distribution, and industrial applications. Its Indian operations serve as a global export hub for power and digital substation transformers.
6. Crompton Greaves (CG Power and Industrial Solutions) – Mumbai, Maharashtra
Crompton Greaves is among India’s oldest and most respected transformer brands, producing a range of power, distribution, and instrument transformers. Its ISO-certified facilities serve over 85 countries.
7. Voltamp Transformers Limited – Vadodara, Gujarat
Voltamp specializes in oil-filled and dry-type distribution transformers up to 160 MVA. The company’s manufacturing systems are certified to ISO 9001, 14001, and 45001 standards.
8. Transformers & Rectifiers (India) Limited – Ahmedabad, Gujarat
TRIL produces a wide range of transformers up to 1,200 kV, including furnace and rectifier units. Its export-quality systems comply with IEC, ANSI, and BIS standards, serving clients across 30+ countries.
9. Schneider Electric India – Bangalore, Karnataka
Part of the global Schneider group, the India unit produces dry-type and distribution transformers with advanced monitoring systems. All units are ISO 9001 and ISO 14001 certified, supporting global smart grid and industrial applications.
10. Kirloskar Electric Company – Bangalore, Karnataka
A pioneer in Indian electrical engineering, Kirloskar Electric manufactures transformers up to 200 MVA. Its BIS and ISO-certified production ensures compliance with domestic and export standards.
11. Raychem RPG (Joint Venture with TE Connectivity) – Nashik, Maharashtra
Raychem RPG specializes in medium-voltage and compact transformers for industrial and renewable installations. ISO 9001-certified, the company focuses on innovation and sustainability-driven solutions.
12. EMCO Limited – Thane, Maharashtra
EMCO is known for its ISO 9001-certified power and distribution transformer manufacturing. It supplies utilities, infrastructure, and export markets with transformers up to 400 kV class.
13. Jackson Group – Noida, Uttar Pradesh
Jackson manufactures distribution and industrial transformers and is certified to ISO 9001, 14001, and 45001 standards. The company has a strong export portfolio serving Africa, the Middle East, and Southeast Asia.
14. Urja Techniques (India) Pvt. Ltd. – Vadodara, Gujarat
Urja Techniques produces BIS-approved transformers and custom-built power transformers up to 100 MVA. The company focuses on R&D and energy-efficient designs, supplying projects in over 40 countries.
15. Indo Tech Transformers Ltd. (Shirdi Sai Group) – Chennai, Tamil Nadu
An ISO 9001 and ISO 14001-certified manufacturer, Indo Tech produces high-voltage and EHV transformers up to 400 kV. Its modern test facilities comply with IEC and ANSI standards.
16. KRYFS Power Components Ltd. – Navi Mumbai, Maharashtra
KRYFS manufactures CRGO transformer laminations, cores, and complete distribution transformers. Its ISO-certified facilities serve leading OEMs and EPC contractors globally.
17. Power & Distribution Transformers Ltd. – Delhi NCR
PDTL manufactures BIS and ISO 9001-certified transformers up to 220 kV. It provides engineering, manufacturing, and field testing support to public and private utilities.
18. Prime Meiden Limited (Meidensha Japan JV) – Greater Noida, Uttar Pradesh
This Indo-Japanese joint venture specializes in high-quality, ISO-certified power transformers up to 765 kV. It serves clients across India, Japan, and the Middle East with precision-engineered units.
19. Shirdi Sai Electricals Limited (SSEL) – Tirupati, Andhra Pradesh
SSEL manufactures power and distribution transformers up to 315 MVA, 400 kV class. Its ISO and BIS certifications enable participation in large-scale government and utility projects.
20. Bharat Bijlee Limited – Mumbai, Maharashtra
One of India’s legacy electrical engineering firms, Bharat Bijlee manufactures power and traction transformers. Its facilities are ISO 9001, 14001, and 45001 certified, serving both domestic and global clients.
India’s Growing Export Potential
India’s transformer manufacturing sector is not only meeting domestic demand but also contributing significantly to the global supply chain. With government-backed policies like Make in India and incentives for high-efficiency equipment, exports of transformers from India are expected to grow steadily.
Manufacturers like Zetwerk, with ISO-certified operations, precision engineering, and export-focused quality systems, are helping position India as a trusted manufacturing hub for international power and industrial projects.
Conclusion
India’s transformer manufacturing ecosystem combines scale, technical depth, and ISO-driven quality standards that rival established global producers. Each of these 20 companies contributes uniquely to strengthening global energy systems—with Zetwerk standing at the forefront as a next-generation manufacturer offering engineering precision, digital traceability, and globally compliant products for modern grids.
By integrating automation, sustainability, and certified processes, these Indian manufacturers are driving the transformation toward a more efficient and reliable global power network.
FAQs
a. Zetwerk leads with ISO-certified, export-ready manufacturing serving global transformer OEMs and utilities.
a. Yes. Most leading companies hold ISO 9001, ISO 14001, and BIS certifications for global compliance.
a. Transformers from 11 kV to 800 kV are produced across power, distribution, and specialty applications.
a. Yes, Zetwerk supplies ISO and DOE-compliant transformers to OEMs and EPCs in North America.
a. India offers world-class engineering, ISO-certified production, cost efficiency, and fast delivery timelines.
