What SKB EP does

SKB EP LLC, founded in January 1991 as a structural unit of the Institute of Energy Systems L.A. Melentyev SB RAS, is a Russian privately held full-cycle design and manufacturing enterprise specializing in precision electronic instruments for control and diagnostics of high-voltage circuit breakers, power transformers, and on-load tap changers (OLTCs). The company sells four main product families — PKV-series high-voltage circuit breaker analyzers (PKV/M7, PKV/M15, PKV/U3.0, DCRT-200), MIKO-series micro-ohmmeters and milli-ohmmeters (MIKO-21, MIKO-22, MIKO-9A, MIKO-8M(A), MIKO-7M(A), MIKO-10, MIKO-12-50A, MIKO-2.3), PKR-series OLTC diagnostic systems (PKR-2, PKR-2M), and pre-configured ETL laboratory sets (BASIC, OPTIMAL, PRO) — supported by a proprietary Dynamic Resistance Measurement (DRM) method that enables non-demountable OLTC diagnostics and measurement accuracy up to ±0.05% in the µΩ range, validated in operation near 750kV substations. The instruments are designed, manufactured, and serviced by SKB EP's team at its headquarters in St. Petersburg, R&D and manufacturing basis in Irkutsk, and branch in the Novosibirsk Technopark.

The company operates a B2B enterprise field-sales model with quote-based pricing, selling primarily through a 50+ official dealer and distributor network across 33+ countries (Russia, CIS, EU, Southeast Asia, Middle East, South America, Africa, Oceania), supplemented by direct sales into Russian state-owned enterprises (PJSC Rosseti, JSC Russian Railways). Revenue is generated predominantly through hardware sales of diagnostic instruments, with secondary revenue from calibration services (registered in the Russian VNIIMS FSUE calibration system), warranty and post-warranty repair, and paid chart analysis and training subscriptions. Customer segments include power utilities and grid operators (primary), industrial enterprises (oil, gas, mining, manufacturing), railway infrastructure, aircraft engineering, and specialized electrotechnical laboratories — with a stated base of 15,000 customers and 13 HV equipment factories using SKB EP instruments at quality control. SKB EP is actively expanding: a 5,340 sq.m. new production facility in St. Petersburg was initiated in 2024, four new devices were launched in 2024, and new distributors were added in Saudi Arabia, South Korea, and Indonesia in 2024-2025.

Name

SKB EP

Legal name

SKB EP LLC

Website

https://skbep.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

51–100 employees

Short description

SKB EP LLC is a Russian privately held designer and manufacturer of precision electronic diagnostic instruments for high-voltage circuit breakers, power transformers, and on-load tap changers, selling through 50+ dealers across 33+ countries to power utilities, industrial enterprises, railways, and electrotechnical laboratories.

Ownership category

akta.pro rank

Product category

Electrical Testing and Diagnostic Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Test & Measurement Equipment (Oscilloscopes, DAQ, signal analyzers, calibration benches) (IMAGAFAC)

Keywords

• High-voltage circuit breaker analyzers
• Micro-ohmmeter and milli-ohmmeter instruments
• OLTC diagnostic equipment
• Electrical resistance measurement instruments
• Transformer diagnostic instruments

Headquarters

HQ city

Saint Petersburg

HQ country

Russia

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sale of diagnostic and monitoring instruments: Primary revenue stream from designing, manufacturing, and selling precision electronic instruments for high-voltage equipment diagnostics. Products include circuit breaker analyzers (PKV series), milli-ohmmeters and micro-ohmmeters (MIKO series), OLTC diagnostic systems (PKR series), and associated accessories and cables.
2. Calibration and metrological services: The company's registered calibration laboratory (in the Russian VNIIMS FSUE calibration system) provides calibration services for SKB EP instruments and potentially third-party equipment, issuing calibration certificates.
3. Warranty and post-warranty repair services: Device registration required for warranty service. Each received device undergoes initial diagnostics followed by repair and calibration laboratory testing with calibration certificate issuance.
4. Technical consultation and chart analysis services: Subscription to chart analysis service and individual training programs on working with SKB EP devices. Deciphering graphic diagnostic data and forming repair recommendations.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

SKB EP designs, manufactures, and sells precision electronic diagnostic instruments for high-voltage electrical equipment. Its portfolio includes PKV-series high-voltage circuit breaker analyzers, MIKO-series micro-ohmmeters and milli-ohmmeters, PKR-series on-load tap changer (OLTC) diagnostic systems, and DCRT-200 dynamic resistance testers, sold to power utilities, substations, power plants, industrial enterprises, railways, and electrical equipment manufacturers. The company also provides calibration, warranty/repair, and chart analysis services through its own calibration laboratory and service center.

Product overview

SKB EP is an innovative full-cycle enterprise specializing in development and manufacture of control and diagnostic instruments for high-voltage electrical equipment. The product portfolio centers on four main instrument families: (1) PKV-series high-voltage circuit breaker analyzers (PKV/M15, PKV/M7, PKV/U3.0, DCRT-200) for monitoring time, travel, and speed parameters; (2) MIKO-series micro-ohmmeters and milli-ohmmeters (MIKO-22, MIKO-21, MIKO-10, MIKO-9A, MIKO-8M(A), MIKO-7M(A), MIKO-12-50A, MIKO-2.3) for DC resistance measurement; (3) PKR-series transformer OLTC diagnostic systems (PKR-2M, PKR-2) for on-load tap changer diagnostics; and (4) supporting accessories including manipulating rods and ETL laboratory sets. The instruments integrate proprietary measurement algorithms, built-in batteries, mobile app connectivity via Bluetooth, and PC/cloud software for data management.

Differentiator

Problem solved

Functional benefit

Brands

• MIKO Series: Line of micro-ohmmeters and milli-ohmmeters for measuring DC electrical resistance in inductive and non-inductive circuits, including MIKO-1, MIKO-2.3, MIKO-7M(A), MIKO-8M(A), MIKO-9A, MIKO-10, MIKO-12-50A, MIKO-21, MIKO-22.
• PKV Series
• PKR Series
• DCRT-200

Products and services

• PKV/M15 Expert Modification Portable high-voltage circuit breaker analyzer for monitoring time, travel, and speed parameters of MV and HV circuit breakers up to 3 breaks, with special 'dry contact' triggering mode. For power utilities, substations, and HV equipment manufacturers.
• PKV/M15 Basic Modification Portable high-voltage circuit breaker analyzer for monitoring time parameters of MV and HV circuit breakers up to 3 breaks, with special 'dry contact' triggering mode. For power utilities, substations, and HV equipment manufacturers.
• PKV/M7 Advanced high-voltage circuit breaker analyzer for monitoring time, travel, and speed parameters of oil, vacuum, SF6, and magnetic-type circuit breakers up to 4 breaks. For power utilities, substations, and HV equipment manufacturers.
• DCRT-200 Dynamic resistance tester of switch contacts for circuit breaker dynamic contact resistance measurement (DCRM) and diagnostics of arc extinguishing chambers of gas-free switches. For HV equipment manufacturers and utilities.
• MIKO-22 Modern micro-ohmmeter for high precision DC electrical resistance measurement in the range from 0.1 µΩ to 2 Ω with ±0.05% accuracy. For power utilities, industrial enterprises, and HV equipment manufacturers.
• MIKO-21 High precision micro-ohmmeter for DC electrical resistance measurement in non-inductive circuits in the range of 0.1 µΩ - 2 Ω with test current up to 200 A and ±0.05% accuracy. For power utilities, HV equipment manufacturers, and industrial enterprises.
• MIKO-10 Compact micro-ohmmeter for rapid DC electrical resistance measurement in the range of 1 µΩ - 0.1 Ω with test current up to 10 A. For power utilities and industrial enterprises.
• MIKO-2.3 Multipurpose low/high resistance meter — portable mini-laboratory combining micro-ohmmeter (up to 1000A, 1 µΩ-0.1 Ω), milli-ohmmeter (100 µΩ-1 kΩ), kilo-ohmmeter (0.1 kΩ-300 kΩ), and thermometer (-20°C to +120°C) modes in a 2.7 kg device. For electrical equipment diagnostics across utilities, industry, and laboratories.
• MIKO-9A Advanced Precision Milli-ohmmeter Advanced precision milli-ohmmeter for DC resistance measurement in inductive and non-inductive circuits in the range of 1 µΩ - 30 kΩ with test current up to 10 A, featuring demagnetization and DRM (Dynamic Resistance Measurement) modes. For power utilities, transformer diagnostics, and industrial enterprises.
• MIKO-8M(A) Milli-ohmmeter for DC resistance measurement in inductive and non-inductive circuits in the range of 1 µΩ - 10 kΩ with test current up to 10 A. For power utilities and industrial enterprises.
• MIKO-7M(A) Milli-ohmmeter for DC resistance measurement in inductive and non-inductive circuits in the range of 10 µΩ - 2 kΩ with test current up to 10 A. For power utilities and industrial enterprises.
• MIKO-12-50A Modern three-phase milli-ohmmeter for DC resistance measurement in inductive objects. For power utilities and transformer diagnostics.
• PKR-2M Transformer OLTC Diagnostic System Transformer OLTC diagnostic system for demountable and non-demountable (DRM mode) diagnostics of on-load tap changers of all types. For power utilities, transformer manufacturers, and service providers.
• PKR-2 Transformer OLTC Diagnostic System Transformer OLTC diagnostic system for demountable diagnostics of on-load tap changers of all types. For power utilities, transformer manufacturers, and service providers.
• ETL Sets (BASIC, OPTIMAL, PRO) Complete sets of instruments for electrotechnical laboratories (ETL) in three pre-configured bundles: BASIC (PKV/M6N or PKV/M15, MIKO-10, MIKO-7M(A), manipulating rod), OPTIMAL (PKV/M7, MIKO-21, MIKO-8M(A), manipulating rod), and PRO (PKV/U3.0, MIKO-21, MIKO-9A, PKR-2M, manipulating rod). For electrotechnical laboratories and HV equipment manufacturers.
• Manipulating Rod Device for connecting test cable clamps to bushings of high-voltage equipment up to 5 meters height without ladders, available in 3 sizes. For field operators using SKB EP instruments at substations.
• Mobile App for Milli-ohmmeters Mobile application for working with measurement results from MIKO-9A, MIKO-8M(A), and MIKO-7M(A) milli-ohmmeters, enabling data management, trend analysis, and report generation. For customers using SKB EP milli-ohmmeters.
• Calibration and Metrological Services Calibration services provided by SKB EP's registered calibration laboratory for its own instruments and third-party equipment, issuing calibration certificates. For instrument users requiring certified calibration.
• Warranty and Post-Warranty Repair Services Warranty and post-warranty repair services for SKB EP instruments, including initial diagnostics, repair, and calibration laboratory testing with calibration certificate issuance. For instrument owners.
• Chart Analysis and Technical Consultation Services Subscription-based chart analysis service and individual training programs on working with SKB EP devices, including deciphering graphic diagnostic data and forming repair recommendations. For instrument users needing diagnostic interpretation support.

Quantifiable outcome

• MIKO-2.3 delivers up to 1000A test current at only 2.7 kg weight, compared to the nearest worldwide competitor at 7.5 kg with maximum 500A — enabling superior portability and measurement capability
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Official distributor in VietnamcoreChannel Partner/ Reseller/ Distributor · 1 June 2025SKB EP's official partner in Vietnam held a successful equipment presentation at a large transformer manufacturing plant in June 2025, demonstrating PKR-2M's non-demountable DRM diagnostic capabilities. SKB EP engineers provided remote support developing necessary connection schemes.
• Official distributor in Saudi ArabiacoreChannel Partner/ Reseller/ Distributor · 1 January 2025New agreement signed with an ambitious company from Saudi Arabia in January 2025 — the first official representative of SKB EP in the country. First delivery of MIKO-21 micro-ohmmeters to a leading electrical equipment manufacturer completed in July 2025.
• Official distributor in South KoreacoreChannel Partner/ Reseller/ Distributor · 1 January 2025SKB EP started cooperation with a new distributor from South Korea in 2025 as part of expansion in the Asian market.
• SKB EP dealer network (50+ dealers)coreChannel Partner/ Reseller/ Distributor · 1 January 2024SKB EP operates through 50 official dealers covering Russia, CIS, Europe, Asia, South America, Oceania, and Africa. New dealers added in 2024 in Russia, Egypt, and Indonesia. Cooperation with South Korean and Ecuadorian companies resulted in first deliveries in 2024.
• Huaming RussiacoreStrategic or Co-development Partner · 1 January 2020SKB EP started cooperation with Huaming Russia in 2020 to carry out a project on field OLTC diagnostics using specialized PKR-2 and PKR-2M devices. This partnership enables joint delivery of diagnostic services to end customers in the Russian market.
• Tomsk Polytechnic University (TPU)minorStrategic or Co-development Partner · 1 January 2008First cooperation agreement signed between SKB EP and Tomsk Polytechnic University in 2008 for inclusion of lecture material on SKB EP devices in the university's educational program.

Scale indicators8 records

Recent moves8 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCqbUm4XlRAR_VrP1ZnCSNeQ
• LinkedInlinkedin.com/company/skbep
• Facebookfacebook.com/skbep

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 SKB EP