Poylux

What Poylux does

POLYLUX, S.L. is a Spanish Sociedad Limitada (private limited company) founded around 1970 and headquartered in Cerdanyola del Vallès, Barcelona. The company designs, manufactures, and commercializes electrical power conversion equipment — including transformers, autotransformers, inductors, voltage regulators, voltage stabilizers, harmonic compensators, and AC-DC conversion products — with a range spanning 25VA to 1000kVA and 12V to 12kV. Its proprietary capabilities include resin encapsulation (encapsulado en resina), dip varnishing with high-compacting oven drying, magnetic core design, and an in-house laboratory performing 100% automated product testing. The company reports more than 50 years of manufacturing experience and positions itself as the leading Spanish manufacturer of transformers, autotransformers, and inductors.

The company serves eight primary verticals: renewable energy (solar inverters), railway, marine/naval (Bureau Veritas-certified IP23/IP65 products), medical/clinical (IEC/EN 61558 compliant, 30+ MVA installed across 100+ countries), lighting, energy quality (K-factor transformers, harmonic filtering), industrial, and oil & mining. Certifications include ISO 9001:2015 (SGS), UL, CE, Bureau Veritas (naval), and a Carbon Footprint certificate. Recent product launches (REGM bidirectional voltage regulator in 2024, UL expansion in 2025, TTDN three-phase solar transformer in 2026) indicate a deliberate push into the solar inverter segment.

POLYLUX operates a hybrid go-to-market: direct sales from Barcelona supported by a dedicated export department, a distributor network covering 100+ countries outside Spain and Andorra (actively recruited via a website form), online purchasing for customers in selected countries, and a quote-based pricing model for custom and standard products. Revenue is generated through hardware sales of catalog products and custom fabrications (single-phase up to 12kV, three-phase cast resin up to 400kVA, non-cast resin up to 1000kVA). Marketing channels include a multilingual website, LinkedIn, Instagram (launched May 2024), an email newsletter, technical tutorials, and participation in trade shows such as Hannover Messe, MATELEC, and Eliaden. No external funding rounds, M&A activity, or management team details are disclosed.

Name

Poylux

Legal name

POLYLUX, S,L.

Website

https://polylux.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

POLYLUX, S.L. is a Barcelona-based Spanish manufacturer of transformers, autotransformers, inductors, and voltage conversion equipment (25VA–1000kVA) serving industrial, renewable energy, railway, marine, medical, and oil & mining sectors, exporting to over 100 countries.

Ownership category

akta.pro rank

Product category

Electrical Transformers and Power Conversion Equipment

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Electrical Equipment Manufacturing (33531)

SIC

Power, Distribution & Specialty Transformers (3612), Electronic Coils, Transformers & Other Inductors (3677)

akta.pro primary industry

Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA)

akta.pro secondary industry

Reactive Power & Power Quality Equipment (Capacitor Banks, Reactors, STATCOM/SVC, Harmonic Filters) (IMAGAAAG)

Keywords

• Low voltage transformers
• Autotransformers manufacturing
• Inductors and reactors
• Voltage stabilizers
• Harmonic compensators

Headquarters

HQ city

Barcelona

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Standard Transformer, Autotransformer, and Inductor Sales: POLYLUX generates revenue through the manufacture and sale of a complete range of electrical power conversion equipment including transformers, autotransformers, inductors, voltage regulators, stabilizers, and AC-DC conversion products. Products range from standard catalog items to customized fabrications, with an emphasis on low-voltage applications for demanding sectors.
2. Custom/Special Manufacturing: POLYLUX manufactures custom-made products (fabricaciones especiales) tailored to specific customer needs, including single-phase cast resin and non-cast resin products with maximum voltages of 12 kV, three-phase cast resin products up to 400 kVA, and non-cast resin products up to 1000 kVA.
3. Accessories and Complementary Products: Sale of accessories for control and monitoring of electrical installations, including insulation monitoring devices and temperature monitoring devices.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

POLYLUX designs and manufactures low-voltage electrical power conversion equipment, including transformers, autotransformers, inductors, voltage regulators, voltage stabilizers, harmonic compensators, and AC-DC conversion products (rectifier transformers and power supplies), with power ratings from 25VA to 1000kVA and voltages from 12V to 12kV. The company produces both standard catalog items for stock delivery and fully customized fabrications adapted to specific customer requirements across industrial, renewable energy, railway, marine, medical/clinical, lighting, and oil & mining applications.

Product overview

POLYLUX is a manufacturer specializing in transformers, autotransformers, and inductors for voltage conversion, safety, and power quality applications. The product portfolio includes isolation transformers, control and safety transformers, solar inverter transformers, K-factor transformers for harmonic networks, ECO transformers with low losses, clinical/medical transformers, lighting transformers, portable transformers, measuring transformers, and rectifier transformers. Additionally, the company offers autotransformers (including solar inverter and reversible types), reactors/compensators for harmonic filtering and rejection, voltage regulators, voltage stabilizers, AC-DC conversion products (power supplies), accessories (insulation monitoring, temperature monitoring), and custom-made products. The company serves sectors including renewable energy, railway, marine/naval, medical/clinical, lighting, industrial, and oil & mining.

Differentiator

Problem solved

Functional benefit

Products and services

• Power and Control Isolation Transformers (TT/TTU/TTD three-phase and TK/TK5IN single-phase series) Three-phase and single-phase isolation transformers providing galvanic isolation between primary and secondary circuits for protection against electrical contacts and load/installation isolation from the network, including low inrush current models (<=5In) for general and demanding industrial use.
• Control, Maneuvering and Isolation Transformers (P/Q/N/IP/PXR/PXD/PX series) Single-phase control and maneuvering transformers designed for adapting small voltages or providing galvanic isolation for small loads in industrial control applications.
• Safety Transformers (PB/PC/NB/NC series) Single-phase safety transformers designed to isolate a load or installation from direct contact with water or other liquids.
• Solar Inverter Transformers (TTF and TTDN series) Transformers for solar inverters providing galvanic isolation and adapting solar inverter output to user working voltage while ensuring load/installation isolation from the network, including the TTF series for 800V and the TTDN series for 400V photovoltaic installations.
• K-Factor Transformers (TTFK series) Three-phase K-factor transformers designed for electrical installations with high harmonic levels.
• ECO Transformers (TTG series) High-performance ecological three-phase transformers with low losses, designed for energy efficiency.
• Clinical and Medical Transformers (TH, TTH and TLQ series) Transformers adapted for use in electrical installations of operating rooms, hospitals, and other medical centers, compliant with IEC/EN 61558 standard, including the TLQ series for operating room spotlights.
• Lighting Transformers (PIP, PIQ, PIN, PIPZ, PIL and QIL series) Single-phase transformers for pool lighting and LED lamp power supply, adapted to evolving lighting technology requirements.
• Portable Safety Transformers (TP series) Portable single-phase encapsulated safety transformers for mobile applications.
• Measuring Transformers (TI, TM, PTM, QTM, TMTX, TMTW and TMTE series) Current transformers and single/three-phase transformers for adapting voltage to measurement equipment.
• Rectifier Transformers (TR, TRF and TRT series) Single-phase and three-phase rectifier transformers for AC-DC power conversion applications.
• Solar Inverter Autotransformers Autotransformers for solar inverters, robust and capable of adapting voltages continuously 24/7.
• Artificial Neutral Autotransformers Autotransformers designed to generate artificial neutral in biphasic networks.
• Reversible Autotransformers Reversible autotransformers capable of adapting voltages and working continuously.
• Blocking Reactors (Inductancias de Rechazo) Three-phase blocking reactors for harmonic rejection in electrical installations.
• Harmonic Filtering Reactors Reactors designed to address harmonic problems in single-phase and three-phase lines.
• Harmonic Compensators (Compensadores de Armónicos) Innovative harmonic compensators offering unique and highly effective solutions to harmonic problems in office and industrial electrical installations.
• REGM Bidirectional Voltage Regulators Bidirectional voltage regulators for solar inverters, enabling voltage control in both directions for renewable energy applications.
• Voltage Stabilizers Equipment to regulate and stabilize electrical voltage for consistent power supply.
• Power Supplies (AC-DC Conversion) Stabilized and non-stabilized power supplies for various DC applications.
• Insulation Monitoring Devices Accessories for insulation monitoring to ensure correct operation of electrical installations.
• Temperature Monitoring Devices Accessories for temperature monitoring to ensure correct operation of electrical installations.
• Custom-Made Products (Fabricaciones Especiales) Custom fabrication of single-phase encapsulated and non-encapsulated products with maximum voltages of 12 kV, three-phase encapsulated products up to 400 kVA, and three-phase non-encapsulated products up to 1000 kVA, tailored to specific customer requirements.

Quantifiable outcome

• 30+ MVA of power installed in medical/clinical applications across 100+ countries on five continents
• +2 more outcomes

Named customers12 records

Segments8 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• SGScoreOthersSGS is the certifying body for POLYLUX's ISO 9001:2015 quality management system certification, validating the company's design, manufacturing, and commercialization processes for transformers, autotransformers, power supplies, control devices, inductors, and harmonic compensators.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Block Transformatoren: German manufacturer of low-voltage transformers, autotransformers, reactors, and power supplies. Closely matches POLYLUX's product portfolio and customer segments (industrial, renewable energy, medical, railway).
• Jefferson Electric: US-based manufacturer of dry-type transformers and related magnetics including K-factor, isolation, and buck-boost autotransformers. Highly comparable in product category, voltage range, and customization model.
• Hammond Power Solutions: Specialty manufacturer of dry-type transformers, reactors, and harmonic filters with comparable product breadth in control, isolation, K-factor, and medical-grade transformers — the closest product-line overlap with POLYLUX globally.
• REO: Manufacturer of chokes, inductors, reactors, and power quality components including harmonic filters. Closely comparable to POLYLUX's reactors, filtering inductors, and harmonic compensators product lines.

Broad incumbents

• Eaton: Power management company with a transformer product family spanning industrial, medical, and renewable energy segments. Directly overlaps with POLYLUX's medical, solar, and industrial transformer offerings while offering much broader power management capabilities.
• Legrand: Global specialist in electrical and digital building infrastructure, including low-voltage transformers and power supplies. Comparable to POLYLUX in low-voltage safety/isolation products serving commercial and industrial customers.
• Hubbell: Diversified electrical products manufacturer with transformer and power quality offerings for industrial and utility markets. Overlaps with POLYLUX in low- and medium-voltage transformer categories while serving broader electrical infrastructure segments.
• Siemens: Diversified industrial conglomerate with a strong transformer and power electronics portfolio. Overlaps with POLYLUX in industrial, railway, and medical-grade applications, though at a far larger scope and scale.
• ABB: Major electrical equipment manufacturer with extensive transformer product lines across low, medium, and high voltage. Competes with POLYLUX in industrial and specialty transformer categories, supplemented by much larger scale and digital ecosystem.
• Schneider Electric: Global electrical equipment leader with a broad low-voltage and industrial transformer portfolio. Directly overlaps with POLYLUX in isolation, safety, and control transformers while serving vastly larger geographies and digital monitoring offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/polylux-s.l.
• Instagraminstagram.com/polylux_sl

Compliance5 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 Poylux