Circé

What Circé does

Circé is a French manufacturer of low-voltage dry-type electrical transformers, founded in 1981 and headquartered in Parigné l'Evêque, France. The company operates as a privately held Société à responsabilité limitée (SARL) with a registered share capital of €100,000 and approximately 20 employees. Its product range spans single-phase transformers (40 VA to 25 kVA), three-phase transformers (630 VA to 1000 kVA), tri-mono transformers, single- and three-phase autotransformers (including reversible variants up to 250 kVA), custom power supplies, inductors/coils, and fully bespoke integrated systems. A differentiated offering is the Eco-Design high-efficiency line, which achieves 98% energy efficiency versus 95.4% for standard units, reducing losses by more than 50% and meeting EU regulations 548/2014 and 2019/1783, with customer ROI under two years.

The underlying technology relies on electromagnetic induction with custom winding and magnetic circuit design; Circé also holds Bureau Veritas marine certification and complies with CE, REACH, RoHS 2, and IEC 61558/60076 standards. The company sells directly to enterprise customers across ten verticals — general industry, aeronautics, nuclear, wind energy, petrochemical, marine and offshore, military, medical, railway, and audiovisual — with named clients including AREVA, Bouygues, Eiffage, Johnson Controls, Safran, SPIE, Thales, and Total. Revenue is generated primarily through one-time hardware sales of standard catalog products and custom-engineered systems, supplemented by technical support and an export service for international projects; pricing is quote-based with a €200 minimum order value.

Circé has pursued growth through both organic product development and acquisitions of French specialty transformer companies (Transreg, Hexacom, ETP, and most recently Eurotransfo), consolidating its position in the domestic low-voltage transformer market. Go-to-market is sales-led, supported by technical content marketing, a downloadable product catalogue, an online ROI calculator, and bilingual (French/English) website infrastructure. The company has no disclosed external funding, no public listing, and no software or AI product surface.

Name

Circé

Legal name

Circé

Website

https://circe-technologies.com

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

11–50 employees

Short description

Circé is a French manufacturer, founded in 1981, specializing in custom and standard low-voltage dry-type electrical transformers (up to 1000 kVA) — including its high-efficiency Eco-Design line — serving enterprise customers across nuclear, defense, marine, medical, and industrial sectors.

Ownership category

akta.pro rank

Product category

Electrical Transformers

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311)

SIC

Power, Distribution & Specialty Transformers (3612)

akta.pro industry

PRIMARYIMAGAAAA

Transformers (Power, Distribution, Instrument, Specialty)

Industrials, Manufacturing & Construction/Electrical Equipment & Industrial Electronics/Power Generation & Grid Equipment (Transformers, Switchgear, Substations)

Keywords

• Low-voltage transformers
• Eco-Design transformers
• Autotransformers
• Custom power supplies
• Inductors and coils

Headquarters

HQ city

Parigné L'Evêque

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Transformer Sales: Sale of standard and custom low-voltage transformers including single-phase, three-phase, tri-mono, and Eco-Design transformers. Products range from a few VA to 1000 kVA.
2. Autotransformer Sales: Sale of single-phase and three-phase autotransformers ranging from 160 VA to 250 kVA standard, with higher power available on request.
3. Custom System Integration: Design and manufacture of custom electrical systems based on customer specifications (cahier des charges), including power supplies, inductors, and complete integrated systems.
4. Technical Support and Services: Technical assistance and accompaniment during various project stages, including expertise services, system solutions, and export services.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Circé is a French manufacturer specializing in the design and production of low-voltage dry-type electrical transformers and integrated systems. The product range covers single-phase, three-phase, and tri-mono transformers from a few VA up to 1000 kVA, plus autotransformers, custom power supplies, inductors, and fully engineered custom systems. The company operates primarily as a B2B industrial supplier with both standard catalog offerings and bespoke engineering to client specifications.

Product overview

Circé is a French manufacturer of low-voltage electrical transformers and related products. The product portfolio centers on single-phase transformers (40 VA to 25 kVA), three-phase transformers (630 VA to 1000 kVA), and tri-mono transformers (1 kVA to 25 kVA). Adjacent products include autotransformers in single-phase and three-phase variants (both standard and reversible, from 0.16 to 250 kVA), custom power supplies, inductors/coils, and fully custom integrated systems. A key differentiator is the Eco-Design transformer line featuring high-efficiency units that reduce energy losses by over 50% compared to standard models. All products are available with various options including enclosures, protections, and temperature monitoring. The company operates as a single-product-line manufacturer with customization as a core service, offering both standard catalog products and bespoke engineering solutions.

Differentiator

Problem solved

Functional benefit

Brands

• Eco-Design: High-efficiency, eco-friendly transformer product line with reduced energy losses (over 50% reduction compared to standard transformers)

Products and services

• Single-Phase Transformers (Transformateurs monophasés) Single-phase low-voltage transformers ranging from 40 VA to 25 kVA, including variants for control/signaling, safety, circuit separation, isolation, and medical use. Designed for industrial and specialized applications.
• Three-Phase Transformers (Transformateurs triphasés) Three-phase low-voltage transformers ranging from 630 VA to 1000 kVA, including variants for circuit separation, isolation, and medical use. Targeted at industrial power distribution and high-power applications.
• Tri-Mono Transformers (Transformateurs tri-mono) Tri-mono transformers that convert three-phase to single-phase signals, ranging from 1 kVA to 25 kVA, with isolation and medical variants.
• Eco-Design Transformers (Transformateurs Eco-Design) High-efficiency Eco-Design transformers compliant with EU regulations 548/2014 and 2019/1783. Achieve 98% energy efficiency (vs. 95.4% for standard), reducing energy losses by more than 50% and offering ROI under 2 years.
• Single-Phase Autotransformers (Autotransformateurs monophasés) Single-phase autotransformers without galvanic isolation, ranging from 160 VA to 25 kVA. Provide a more economical solution for voltage adjustment.
• Reversible Single-Phase Autotransformers (Autotransformateurs monophasés réversibles) Reversible single-phase autotransformers capable of both raising and lowering voltage, ranging from 0.16 kVA to 25 kVA.
• Three-Phase Autotransformers (Autotransformateurs triphasés) Three-phase autotransformers without galvanic isolation, ranging from 160 VA to 250 kVA. Designed for voltage change without neutral regime modification.
• Reversible Three-Phase Autotransformers (Autotransformateurs triphasés réversibles) Reversible three-phase autotransformers capable of both raising and lowering voltage, ranging from 0.63 kVA to 250 kVA, improving short-circuit current efficiency.
• Power Supplies (Alimentations) Custom-designed power supplies built to specifications, available in single-phase and three-phase variants, with or without filtering. Engineered per client cahier des charges.
• Inductors/Coils (Selfs) Custom inductors/coils designed to customer specifications. Used for blocking AC current while allowing DC passage and filtering high-frequency currents.
• Custom Systems (Systèmes sur-mesure) Custom-engineered electrical systems built to customer specifications, including radio-controlled power supplies, mobile enclosures, and didactic energy meters. Designed for full-function integrated electrical applications.

Quantifiable outcome

• Energy efficiency improvement: 98% efficiency vs 95.4% standard (63 kVA example)
• +5 more outcomes

Named customers8 records

Segments10 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered minor.

• TransregminorOthersAcquired company, part of Circé's growth strategy through external expansion.
• HexacomminorOthersAcquired company, part of Circé's growth strategy through external expansion.
• ETPminorOthersAcquired company, part of Circé's growth strategy through external expansion.
• EurotransfominorOthersRecently acquired company, most recent acquisition as part of Circé's external growth strategy.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Schneider Electric: Global energy management and automation major offering low-voltage transformers, power distribution, and industrial control. Competes with Circé in industrial, nuclear, marine, and infrastructure verticals, but at a scale and with a portfolio breadth Circé cannot match.
• ABB: Global electrification, motion, and process automation leader with a broad transformer portfolio spanning low, medium, and high voltage. Overlaps with Circé in industrial and energy applications but operates across many more segments and geographies.
• Siemens: Diversified industrial technology conglomerate with significant transformer manufacturing and electrical infrastructure offerings. Comparable buyer segments (industrial, energy, infrastructure) but with vastly broader scope and global footprint.
• Eaton: Global power management company offering low-voltage transformers, power supplies, and electrical components. Overlaps with Circé in industrial and energy applications, with broader product portfolio and larger international presence.
• SGB-SMIT: European transformer manufacturing group with operations across power, distribution, and specialty transformers. Comparable in custom engineering for industrial and renewable energy applications, though operating at significantly larger scale than Circé.
• Legrand: Global specialist in electrical and digital building infrastructures, including low-voltage transformers and related power distribution products. Comparable as a French-headquartered incumbent selling into overlapping industrial and building markets, but operating at vastly greater scale and with a much broader product portfolio.

Regional players

• Triad Magnetics: US-based manufacturer of transformers, inductors, and power supplies for industrial, audio, and military applications. Comparable as a specialty transformer manufacturer with custom engineering capabilities serving similar industrial verticals, though primarily serving the North American market.

Direct peers

• EREA Transformers: Belgian specialist manufacturer of low-voltage transformers, autotransformers, inductors, and power supplies for industrial and OEM customers. Closely comparable niche specialist targeting the same product categories and customer types as Circé, with similar scale and European footprint.
• RITZ Instrument Transformers: German-based manufacturer specializing in instrument transformers and power transformers for utilities and industry. Comparable in custom engineering, specialty certifications, and serving regulated end markets (utilities, rail, industrial).
• Block Transformatoren-Elektronik: German manufacturer of transformers, power supplies, and inductors for industrial and railway applications. Directly comparable specialty European transformer manufacturer competing in similar verticals (industrial automation, railway, energy) with overlapping product lines.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/circetechnologies

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Circé