Voltamp Transformers
- Company typePublic
- Founded1967
- HeadquartersVadodara, India
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
Voltamp Transformers firmographics
Firmographics- Name
- Voltamp Transformers
- Legal name
- Voltamp Transformers Limited
- Website
- https://voltamptransformers.com
- Company type
- Public
- Founded year
- 1967
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Ownership category
- akta.pro rank
Voltamp Transformers industry classification
Industry- Product category
- Power and Distribution Transformers
- NAICS
- Power, Distribution, and Specialty Transformer Manufacturing (335311), Switchgear and Switchboard Apparatus Manufacturing (335313)
- SIC
- Power, Distribution & Specialty Transformers (3612), Switchgear & Switchboard Apparatus (3613)
- akta.pro primary industry
- Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA)
- akta.pro secondary industries
- Power Transformers, Reactors & Auxiliary Power Systems (EUADACAJ), Medium-Voltage (MV) Distribution Substations & Switchgear (EUADACAB)
Keywords
Where Voltamp Transformers is headquartered
LocationHeadquarters
- HQ city
- Vadodara
- HQ country
- India
- HQ region
- Asia
Offices4 records
Markets served
Voltamp Transformers business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Transformer Manufacturing and Sales: Voltamp generates the majority of its revenue from the design, manufacture, and supply of power transformers, distribution transformers, dry type transformers, and related equipment. Revenue is primarily one-time project-based tied to capital expenditure cycles of utilities, industrial customers, and infrastructure projects. Full-year FY26 net sales were Rs 2,153.68 crore, up 11.34% YoY.
- After-Sales Services and Spares: VOLTAMP SERVICE, an independent Strategic Business Unit, provides comprehensive transformer lifecycle services including maintenance, testing, repairs, overhaul, capacity enhancement, retrofits, and spares supply. Services include condition monitoring, on-site overhauling, emergency troubleshooting, and retro-fill with ester oil. This provides recurring service revenue from the existing installed base of 70,000+ transformers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Project-based pricing for transformer equipment and systems |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels4 records
Voltamp Transformers product offering
Product offeringCore offering
Voltamp Transformers designs, manufactures, and supplies power and distribution transformers up to 160 MVA, 220 KV class, including oil-filled (mineral and ester), dry-type cast resin, induction furnace, and special duty variants. The company also delivers compact substations, switchgear/RMUs, and unitised substations through four manufacturing facilities in Gujarat with 14,000 MVA total installed capacity. A separate SBU, VOLTAMP SERVICE, provides full lifecycle after-sales services including maintenance, repairs, overhauls, condition monitoring, retrofits, and spares for the 70,000+ installed base across India and overseas.
Product overview
Voltamp Transformers Limited is a transformer manufacturing company offering a portfolio of power and distribution transformer products along with after-sales services. The core product lineup includes Oil Filled Transformers (up to 160 MVA, 220 KV class), Cast Resin Dry Type Transformers (up to 12.5 MVA, 33 KV class, manufactured under technology transfer from HTT Germany), Induction Furnace Transformers for rectifier/converter duty applications, Switchgear/Ring Main Units (RMU), Unitised Sub-Stations (USS), and Compact Sub Stations (CSS). The company also provides comprehensive after-sales services through its VOLTAMP SERVICE division (SAS), offering maintenance, repairs, overhauling, spares, condition monitoring, and retro-fill services. Four manufacturing facilities in Gujarat provide a total installed capacity of 14,000 MVA per annum.
Differentiator
Problem solved
Functional benefit
Products and services
- Oil Filled Transformers
Quantifiable outcome
- 70,000+ transformer installations
- +5 more outcomes
Companies that use Voltamp Transformers
Customer profileNamed customers12 records
Segments5 records
Ideal customer profiles4 records
Voltamp Transformers technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Voltamp Transformers partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- HTT, Hann Munden, GermanycoreTechnical collaboration with M/s HTT, Hann Munden, Germany since 1998 for cast resin dry type transformer technology. HTT has been manufacturing cast resin transformers since 1959 and has over 30,000 transformers in operation globally. Voltamp manufactures cast resin transformers up to 12.5 MVA, 33 KV class under this collaboration, enjoying 35% market share in India with 22,000+ installations. HTT range extends up to 16 MVA / 36 KV, covering power and distribution transformers, converter transformers, transformers with OLTC, motor-starting transformers, and testing transformers.
Scale indicators8 records
Recent moves8 records
Expansion highlights6 records
Voltamp Transformers competitors and assessment
Company assessmentDirect peers
- Transformers and Rectifiers (India) Limited: Direct Indian competitor manufacturing power and distribution transformers up to 1200 kV class. Most comparable peer by product portfolio (power + distribution + cast resin) and customer base (Indian utilities, PSUs, EPC firms).
- CG Power and Industrial Solutions Limited: Indian power equipment major (part of Murugappa/Avantha group history) manufacturing transformers, switchgear and rotating equipment. Direct overlap in power and distribution transformers serving Indian utilities and industry.
- Bharat Bijlee Limited: Historic Indian transformer manufacturer (founded 1946) and one of Voltamp founder's former employers (as Siemens licensee). Sells power and distribution transformers to Indian utilities and industrial customers — overlapping product range and customer segment.
Regional players
- Emco Transformers Limited: Indian-based manufacturer of distribution transformers and power transformers up to 60 MVA. Smaller-scale regional competitor sharing Voltamp's domestic Indian focus, with significant overlap in distribution transformer orders from state utilities.
Broad incumbents
- ABB India Limited: Indian arm of ABB operating in electrification and motion. Manufactures transformers and switchgear in India — broader portfolio play but overlapping range in distribution transformers and packaged substations. Long-term customer of Voltamp that is now also a competitive incumbent.
- Schneider Electric Infrastructure Limited: Schneider's listed Indian subsidiary manufacturing distribution transformers, RMUs, and packaged substations under the Merlin Gerin brand. Overlaps with Voltamp's distribution transformer + switchgear + CSS portfolio for utility and industrial customers.
- Hitachi Energy India Limited: Indian arm of the global Hitachi Energy (formerly ABB Power Grids). Manufactures power and distribution transformers in India with global tech leadership — broad incumbent offering overlapping range up to 800 kV and large utility projects.
- GE T&D India Limited: Indian subsidiary of GE Vernova's Grid Solutions business — listed transformer and switchgear manufacturer serving Indian utilities. Long-standing customer relationship with Voltamp also makes it a dual customer/competitor in HV transformer space.
- Siemens Limited (India): Indian arm of Siemens AG, one of Voltamp's long-standing customers AND a competitor in high-voltage power transformers. Provides scale and technology depth across T&D portfolio — incumbent competitor for premium PSU and industrial orders.
Emerging players
- TBEA Energy (India) Private Limited: Indian arm of Chinese TBEA — rapidly scaling transformer manufacturer with aggressive bidding in Indian utility tenders. Represents low-cost competition Voltamp faces on large PSU transmission orders.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Voltamp Transformers social profiles
Digital presenceVoltamp Transformers compliance and trust
Trust signalCompliance4 records
Voltamp Transformers financial estimates
Financial estimateRevenue estimate
Valuation estimate
Voltamp Transformers leadership team
Management profileNumber of profiles
Profiles6 records
Voltamp Transformers funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Voltamp Transformers 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 Voltamp Transformers
What does Voltamp Transformers do?
Voltamp Transformers designs, manufactures, and supplies power and distribution transformers up to 160 MVA, 220 KV class, including oil-filled (mineral and ester), dry-type cast resin, induction furnace, and special duty variants. The company also delivers compact substations, switchgear/RMUs, and unitised substations through four manufacturing facilities in Gujarat with 14,000 MVA total installed capacity. A separate SBU, VOLTAMP SERVICE, provides full lifecycle after-sales services including maintenance, repairs, overhauls, condition monitoring, retrofits, and spares for the 70,000+ installed base across India and overseas.
Is Voltamp Transformers a public or private company?
Voltamp Transformers is a public company. It is classified as public and is currently operating.
When was Voltamp Transformers founded?
Voltamp Transformers was founded in 1967. It employs 501 to 1,000 people.
Where is Voltamp Transformers based?
Voltamp Transformers is headquartered in Vadodara, India, in the Asia region.
How does Voltamp Transformers make money?
Two revenue lines are on record. Transformer Manufacturing and Sales are the primary driver. The others are after-Sales Services and Spares.
Who are Voltamp Transformers's main competitors?
Direct peers on record are Transformers and Rectifiers (India) Limited, CG Power and Industrial Solutions Limited and Bharat Bijlee Limited. Emco Transformers Limited is listed as a regional player. Broad incumbents are ABB India Limited, Schneider Electric Infrastructure Limited, Hitachi Energy India Limited, GE T&D India Limited and Siemens Limited (India). TBEA Energy (India) Private Limited is listed as an emerging player.
Does Voltamp Transformers have an API?
No public API is recorded for Voltamp Transformers.
What industry is Voltamp Transformers in?
Voltamp Transformers's product category is Power and Distribution Transformers. Its primary akta.pro industry code is IMAGAAAA, Transformers (Power, Distribution, Instrument, Specialty), with a secondary code of EUADACAJ, Power Transformers, Reactors & Auxiliary Power Systems. Its NAICS code is 335311 and its SIC code is 3612.