What SALTEK does

SALTEK is a Czech manufacturer of surge protection devices (SPD) founded in 1995 and headquartered in Ústí nad Labem. The company designs and produces a portfolio of approximately 493 products across seven categories: low-voltage SPD (Type 1/2/3, varistor and combined variants), SPD for LED lighting, DC and photovoltaic surge protection, data/signal/telecommunication line protection (the largest category at 247 SKUs), isolation spark gaps (ISG), voltage limiting devices (VLD) for railway traction, and diagnostic/monitoring instruments. The underlying technology protects electrical and electronic equipment against atmospheric and technological overvoltage. Products comply with Czech and European standards (ČSN EN 61643-11, 61643-21, 61643-31) and hold VDE and EZÚ certifications. An in-house testing laboratory simulates lightning and electromagnetic phenomena to validate product safety, functionality, and compliance.

The business operates a B2B distribution model through resellers and distributors in the Czech Republic and internationally. Approximately 75% of production is exported, with Italy and Germany as the primary export markets. Target customers are designers, revision technicians, and electrical installation companies, supported through online product selection tools, technical support, trade shows (Amper, InnoTrans, German exhibitions), webinars, and professional training. End-verticals served include industrial facilities, telecommunications, data centers, residential and commercial buildings, wind and photovoltaic power, railway infrastructure, and EV charging. Revenue is generated through hardware sales of SPD products.

SALTEK employs nearly 200 people and operates a 6,000 m² manufacturing facility in Ústí nad Labem, with a new ~3,000 m² science and technology park under development for advanced R&D. The company is privately held, with no external PE/VC backing disclosed, and is converting from s.r.o. (private limited company) to a.s. (joint-stock company) effective 2026-05. SALTEK won the regional Firma roku 2024 (Company of the Year) in Ústecký kraj and placed third in the Czech national final in December 2024.

Name

SALTEK

Legal name

SALTEK s.r.o.

Website

https://saltek.eu

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

SALTEK is a Czech manufacturer of surge protection devices (SPDs) for low-voltage, photovoltaic, data/telecom, railway, and EV charging applications. Founded in 1995 with ~200 employees, it exports roughly 75% of production, primarily to Italy and Germany, via a B2B distributor network.

Ownership category

akta.pro rank

Product category

Surge Protection Devices

NAICS

Electrical Equipment Manufacturing (33531), Electrical Equipment Manufacturing (3353)

SIC

Electrical Industrial Apparatus (3620), Electronic & Other Electrical Equipment (No Computer Equip) (3600), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Surge Protectors & Power Strips (SPD) (HDACAJAB)

akta.pro secondary industries

Corrosion Inspection & Coating/CP Surveys (CUI, CP, DCVG/ACVG) (EUAEAHAF), Industrial Network Management & Diagnostics (OT NMS/Topology/Monitoring) (HDAFAJAI)

Keywords

• Surge protection devices
• Overvoltage protection
• Lightning current arresters
• Photovoltaic surge protection
• Railway traction protection

Headquarters

HQ city

Usti Nad Labem

HQ country

Czechia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Surge Protection Device Sales: The company generates revenue through the manufacture and sale of surge protection devices (SPD) including products for low voltage, LED lighting, DC/PV, data lines, isolation spark gaps, and traction applications. Approximately 75% of production is exported to markets including Italy and Germany.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

SALTEK is an electronics company that develops and manufactures surge protection devices (SPDs) for protection against atmospheric and technological overvoltage. Its portfolio covers SPDs for low voltage, LED lighting, DC and photovoltaic systems, data/signal/telecommunication lines, isolation spark gaps (ISG), voltage limiting devices for railway traction (VLD), and diagnostic/monitoring instruments. Approximately 75% of production is exported, serving industry, telecommunications, buildings, renewable energy, railway transport, and electromobility sectors.

Product overview

SALTEK is a Czech company (established 1995) specializing in comprehensive overvoltage protection solutions. The product portfolio is organized into 7 main product categories with a total of approximately 493 products: SPD pro nízké napětí (170 products) covering Type 1, 2, and 3 surge protection devices for low voltage applications; SPD pro LED osvětlení (9 products) for LED lighting protection; SPD pro DC a PV (24 products) for photovoltaic and DC applications; SPD pro datové, signálové a telekomunikační linky (247 products) the largest category covering data, signal and telecommunication line protection including MaR (measurement and control), ICT (Ethernet/PoE), and coaxial systems; ISG - oddělovací jiskřiště (17 products) isolation spark gaps; VLD - pro trakce (25 products) voltage limiting devices for railway traction; and Diagnostické a monitorovací přístroje (1 product) for SPD diagnostics. The company also provides industry-specific solutions covering residential houses, industry, telecommunications, buildings, wind power plants, data centers, electromobility, CCTV, security systems, railway transport, photovoltaic systems, pipelines, emergency lighting, public LED lighting, and energy storage. Approximately 75% of production is exported, primarily to Italy and Germany.

Differentiator

Problem solved

Functional benefit

Products and services

• SPD for Low Voltage (SPD pro nízké napětí) Surge protection devices for low-voltage electrical installations, including Type 1, Type 2, and Type 3 SPDs in varistor-based and combined variants, N-PE modules, replacement modules, spark gaps, and combined T1/T1+T2 configurations. Line contains 170 products intended for residential, commercial, and industrial installations.
• SPD for LED Lighting (SPD pro LED osvětlení) Surge protection devices specifically designed for LED lighting installations. Line contains 9 products for protecting indoor and outdoor LED luminaires from pulse overvoltage.
• SPD for DC and Photovoltaic (SPD pro DC a PV) Surge protection devices for DC applications and photovoltaic systems, including PV Type 1 and Type 2 varistor-based SPDs and replacement modules. Line contains 24 products compliant with ČSN EN 61643-31, intended for PV installations and DC circuits.
• SPD for Data, Signal and Telecommunication Lines (SPD pro datové, signálové a telekomunikační linky) Surge protection for data, signal and telecommunication lines, covering MaR (measurement and control) with ST1, ST2+3, BUS/high-speed, vf filter and power supply variants; ICT protection including Ethernet, PoE and video distribution; and coaxial line protection. Line contains 247 products, the largest in the portfolio, for telecom, data, BMS, and security system integrators.
• ISG - Isolation Spark Gaps (ISG - oddělovací jiskřiště) Isolation spark gaps for overvoltage protection, offered in Standard (non-Ex) and Ex (explosive atmosphere) versions. Line contains 17 products for pipelines, cathodic protection stations, and other installations requiring galvanic isolation combined with surge handling.
• VLD for Traction (VLD - pro trakce) Voltage limiting devices designed for railway traction applications, including Class 1 (SCG), Class 2.2 (BVL), and Class 4 (PVL) devices plus monitoring devices, testers, and accessories for VLDs. Line contains 25 products for railway infrastructure protection.
• Diagnostic and Monitoring Devices (Diagnostické a monitorovací přístroje) Measuring instruments for diagnostics and monitoring of surge protection devices. Line contains 1 product intended for testing and verifying installed SPDs and VLDs.
• Railway Track Path Protection (World Innovation, presented at InnoTrans 2024) World-premiere overvoltage protection solution for railway tracks and paths, presented at InnoTrans 2024 (Hall 9, Stand 205) as a new SALTEK innovation. Targeted at railway infrastructure operators needing specialized track-side protection.
• New SALTEK Catalog 2025-2026 (Nový katalog 2025-2026) Completely updated edition of SALTEK's main product catalog covering the full SPD portfolio for distributors, designers, and installation companies.

Quantifiable outcome

• 75% of production exported internationally
• +2 more outcomes

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators6 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• ABB: Swiss-Swedish multinational offering surge protection as part of its broad electrification portfolio. Competes with SALTEK in industrial and utility-grade SPD markets, often via global key-account frameworks.
• Legrand: French global specialist in electrical and digital building infrastructure. Overlaps with SALTEK in building and LED lighting surge protection, typically through distribution-driven channels.
• nVent (ERICO): nVent's ERICO business provides lightning and surge protection for industrial, rail, and utility customers globally. Comparable to SALTEK in rail/traction protection and industrial SPD markets.
• Phoenix Contact: Global leader in industrial connectivity, surge protection, and automation. Overlaps directly with SALTEK's data/signal/telecom SPD and PLC interface protection product lines, while offering far greater scale and global reach.
• Eaton: US-based power management company with a strong European SPD portfolio. Overlaps with SALTEK in low-voltage and PV surge protection, serving many of the same industrial and renewable customers.
• Schneider Electric: Global energy management and automation incumbent. Its surge protection solutions compete with SALTEK in building, data center, and industrial segments, often bundled with broader electrical distribution offerings.

Direct peers

• Raycap: Specialist in surge protection for telecom, data center, and renewable applications. Closely comparable to SALTEK in data line / coaxial protection and increasingly in PV / EV charging SPD.
• DEHN: German family-owned specialist in lightning and surge protection, with deep product overlap to SALTEK across low-voltage SPDs, data/signal line protection, and rail/traction applications. The closest pure-play comparable in Europe.
• OBO Bettermann: German manufacturer of cable management, lightning, and surge protection systems. Competes head-on with SALTEK in low-voltage SPDs and offers a similarly broad portfolio across industrial, building, and renewable applications.
• Weidmüller: German specialist in industrial connectivity and electronics, with a significant VARITECTOR surge protection line. Direct overlap with SALTEK in data/signal line and industrial SPD applications.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubebit.ly/3Craqo5
• LinkedInlinkedin.com/company/saltek-s-r-o-

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 SALTEK