Comtrafo
Comtrafo is a Brazilian transformer manufacturer (founded 1994) producing power and distribution transformers (75 kVA to 300 MVA), dry-type epoxy units, mobile substations, and solar skids for utilities, industrial, telecom, commercial, and renewable energy customers across the Americas, now a subsidiary of AMSC.
- Company typePrivate
- Founded1994
- HeadquartersSão Paulo, Brazil
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Comtrafo does
Comtrafo is a Brazilian transformer manufacturer founded in 1994, headquartered in São Paulo with manufacturing operations in Cornélio Procópio, Paraná. The company designs, manufactures, and services power and distribution transformers ranging from 75 kVA distribution units to 300 MVA power transformers with voltage classes up to 345 kV. Its product portfolio spans oil-immersed transformers (mineral oil, silicone oil, and biodegradable vegetable oil), dry-type transformers encapsulated in vacuum epoxy resin, pedestal and compact transformers, mobile substations, and solar energy base skid solutions. All products comply with ABNT NBR, IEC, and ANSI/IEEE standards, and every unit undergoes 100% factory testing in an in-house laboratory.
The company generates revenue primarily through hardware sales of custom-engineered transformers to enterprise customers, with complementary service revenue from reform/retrofitting, assembly, maintenance, project construction, and logistics (operated via an in-house fleet covering all of Brazil). Pricing is quote-based, tailored to customer specifications, and typically structured as multi-year contracts. Go-to-market is sales-led through a network of regional representatives covering Brazil, USA/Canada, and Latin America, supported by a direct sales office in São Paulo and online quote-request channels. Customer segments include electric utilities and power generators, industrial firms (petrochemical, steel, food, textiles), telecommunications operators, commercial facilities (shopping centers, hospitals), and renewable energy developers.
In December 2025, American Superconductor Corporation (AMSC) acquired Comtrafo for approximately US$55 million in cash and stock, making it a wholly-owned subsidiary of the NASDAQ-listed parent. Comtrafo contributes a baseline of US$55 million in 2025 revenue and a US$85 million backlog for 2026, with the transaction described as accretive to revenue and earnings. The company holds ISO 9001 and UL certifications, earned the Selo Energia Limpa (Clean Energy Seal) for environmental compliance, and operates three manufacturing units in Cornélio Procópio plus the São Paulo sales office.
Comtrafo firmographics
Firmographics- Name
- Comtrafo
- Legal name
- COMTRAFO
- Website
- https://comtrafo.com.br
- Company type
- Private
- Founded year
- 1994
- Operating status
- Acquired
- Headcount range
- 501–1,000 employees
- Short description
- Comtrafo is a Brazilian transformer manufacturer (founded 1994) producing power and distribution transformers (75 kVA to 300 MVA), dry-type epoxy units, mobile substations, and solar skids for utilities, industrial, telecom, commercial, and renewable energy customers across the Americas, now a subsidiary of AMSC.
- Ownership category
- akta.pro rank
Comtrafo industry classification
Industry- Product category
- Power and Distribution Transformers
- NAICS
- Power, Distribution, and Specialty Transformer Manufacturing (335311)
- SIC
- Power, Distribution & Specialty Transformers (3612)
- akta.pro primary industry
- Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA)
- akta.pro secondary industries
- Power Transformers, Reactors & Auxiliary Power Systems (EUADACAJ), Transformer & Reactor Refurbishment / Replacement Programs (EUAEALAE)
Keywords
Where Comtrafo is headquartered
LocationHeadquarters
- HQ city
- São Paulo
- HQ country
- Brazil
- HQ region
- Latin America
Offices4 records
Markets served
Comtrafo business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure
Revenue model
- Transformer Sales: Comtrafo generates revenue through manufacturing and selling transformers including distribution transformers, power transformers, dry-type transformers, compact transformers, pedestal transformers, and mobile substations. The company also provides reformation (retrofitting), assembly, maintenance, design and construction, and logistics services. Revenue baseline stated at US$55 million for 2025 with $85 million backlog for 2026.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | B2B transformer solutions with custom pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
Comtrafo product offering
Product offeringCore offering
Comtrafo manufactures power and distribution transformers for utilities, industrial, commercial, and renewable energy customers, offering oil-immersed, dry-type, pedestal, and compact transformer models. The company also delivers mobile substation solutions, solar energy equipment, and lifecycle services including retrofitting, assembly, maintenance, project construction, and logistics.
Product overview
Comtrafo is a Brazilian transformer manufacturer offering a comprehensive portfolio of power and distribution transformer products along with complementary services. The core product line includes oil-immersed transformers (pedestal, distribution, power, and compact types) and dry-type epoxy encapsulated transformers ranging from 75 kVA to 300 MVA and voltage classes up to 345 kV. The company also provides solar energy solutions (Base Skid systems) and mobile substations/transformers for specialized applications. Service offerings include transformer reform/retrofitting, assembly, maintenance (corrective, preventive, electrical), project and construction, and logistics. All products comply with ABNT NBR, IEC, and ANSI/IEEE standards.
Differentiator
Problem solved
Functional benefit
Products and services
- Power Transformers (Transformador de Força)
- Distribution Transformers (Transformador de Distribuição)
- Pedestal Transformers (Transformador Pedestal)
- Compact Transformers (Transformador Compacto)
- Dry-Type Transformers (Transformador à Seco)
- Solar Energy Solutions (Energia Solar)
- Mobile Substations (Soluções Móveis)
- Retrofitting Service (Reforma)
- Maintenance Service (Manutenção)
- Assembly and Project Construction Service (Montagem e Projeto e Construção)
- Logistics Service (Logística)
Companies that use Comtrafo
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles4 records
Comtrafo technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Comtrafo partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights6 records
Comtrafo competitors and assessment
Company assessmentBroad incumbents
- Eaton: Global power management company producing distribution, dry-type, and substation transformers under its Electrical Americas segment. Competes with Comtrafo in industrial and commercial distribution-transformer projects with a much broader product portfolio.
- Schneider Electric: Global energy management and automation company with significant presence in distribution transformers and substations through its Energy Management business. Broad incumbent whose transformer lines overlap with Comtrafo's distribution and dry-type products.
- Toshiba Energy Systems & Solutions: Manufacturer of large power transformers (up to and above Comtrafo's 300 MVA range) and other grid equipment. Competes for high-MVA utility and industrial transformer tenders, especially in larger transmission-class projects.
- Siemens Energy: Diversified energy equipment OEM with a substantial transformer business (including the Trench instrument-transformer brand). Competes with Comtrafo in higher-MVA and grid-scale transformer tenders, alongside a much broader portfolio in generation and T&D systems.
Direct peers
- Romagnole Transformadores: Brazilian transformer manufacturer with overlapping distribution and power transformer products and a similar domestic customer mix. Direct regional competitor in Brazilian utility, industrial, and renewable energy projects.
- WEG: Brazilian-headquartered global manufacturer of electrical equipment, including a comprehensive portfolio of distribution and power transformers. Most direct geographic and product-line overlap with Comtrafo, competing head-to-head in the Brazilian utility, industrial, and renewable transformer markets.
- SGB-SMIT Group: European-based group of transformer manufacturers (including SGB, Starkstrom-Gerätebau, SMIT Transformer) producing distribution, power, and special transformers comparable to Comtrafo's portfolio, including for renewable and industrial customers.
- Hitachi Energy: Global market leader in power and distribution transformers, including dry-type and oil-immersed units for utility and industrial applications. Operates local manufacturing and service in Brazil and is the principal global competitor for medium and high-MVA transformer orders.
- Prolec (GE Vernova): Joint venture between GE Vernova and Xignux; one of the largest transformer manufacturers in the Americas with distribution and power transformer offerings comparable to Comtrafo's. Direct competitor for utility and industrial transformer orders across the Americas.
Emerging players
- Hyundai Electric & Energy Systems: Korean manufacturer aggressively expanding in power and distribution transformers globally, including in the Americas. An emerging low-cost competitor to Comtrafo in distribution and mid-MVA transformer segments.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Comtrafo social profiles
Digital presenceComtrafo compliance and trust
Trust signalCompliance3 records
Comtrafo financial estimates
Financial estimateRevenue estimate
Valuation estimate
Comtrafo leadership team
Management profileNumber of profiles
Comtrafo funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Comtrafo 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 Comtrafo
What does Comtrafo do?
Comtrafo manufactures power and distribution transformers for utilities, industrial, commercial, and renewable energy customers, offering oil-immersed, dry-type, pedestal, and compact transformer models. The company also delivers mobile substation solutions, solar energy equipment, and lifecycle services including retrofitting, assembly, maintenance, project construction, and logistics.
Is Comtrafo a public or private company?
Comtrafo is a private company. It is classified as corporate owned and is currently acquired.
When was Comtrafo founded?
Comtrafo was founded in 1994. It employs 501 to 1,000 people.
Where is Comtrafo based?
Comtrafo is headquartered in São Paulo, Brazil, in the Latin America region.
How does Comtrafo make money?
One revenue line is on record: transformer Sales.
Who are Comtrafo's main competitors?
Broad incumbents on record are Eaton, Schneider Electric, Toshiba Energy Systems & Solutions and Siemens Energy. Direct peers are Romagnole Transformadores, WEG, SGB-SMIT Group, Hitachi Energy and Prolec (GE Vernova). Hyundai Electric & Energy Systems is listed as an emerging player.
Does Comtrafo have an API?
No public API is recorded for Comtrafo.
What industry is Comtrafo in?
Comtrafo'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.