R&S Group

What R&S Group does

R&S Group (R&S International Holding AG, listed on SIX Swiss Exchange under RSGN since December 13, 2023) is a Switzerland-headquartered manufacturer of electrical power infrastructure products serving utilities, renewable energy developers, industrial customers, and infrastructure operators across 75 export countries. The group's portfolio spans power transformers (up to 160 MVA), oil-immersed distribution transformers (up to 10 MVA), dry-type cast resin transformers (up to 20 MVA), instrument transformers, overhead line and railway electrification switches, IP67 sea-water resistant high-current connectors, switchboards, and distribution boards. Operations are organized around four legacy brands — Rauscher & Stoecklin (Switzerland, founded 1919), ZREW (Poland, acquired 2015), Tesar (Italy, acquired 2016), and Kyte Powertech (Ireland, acquired August 2024 for approximately €250 million) — with manufacturing facilities in Switzerland, Poland, Ireland, Italy, and the UAE.

The company monetizes primarily through one-time equipment sales via direct enterprise field sales to utilities, EPC contractors, and infrastructure operators, complemented by after-sales service and technical support contracts. Pricing is custom quotation-based for project-engineered equipment, with multi-year supply agreements in place with utilities such as Stadtwerk Winterthur (5-year) and SAK (3-year). Distribution relies on direct sales through branded subsidiaries plus 120 trading partners globally. In December 2025, R&S Group divested its non-core switches and connectors business (26 employees) to Pfiffner Group to refocus on transformer-centric power products. Group headcount stands at approximately 1,100 employees worldwide, with combined production capacity exceeding 16,000 distribution transformers annually at Kyte's Cavan facility alone. Reference projects include Dogger Bank Wind Farm (world's largest offshore wind farm), Brenner Base Tunnel, FIFA World Cup 2022 Qatar stadiums, Louvre Abu Dhabi, and Muscat International Airport.

Name

R&S Group

Legal name

R&S International Holding AG

Website

https://the-rsgroup.com

Company type

Public

Founded year

1919

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

R&S Group is a Swiss-listed (SIX: RSGN) manufacturer of electrical power infrastructure, producing power, distribution, and cast resin transformers plus switchgear and industrial connectors. It serves utilities, renewable energy developers, industrial operators, and infrastructure projects across 75 countries through four legacy brands.

Ownership category

akta.pro rank

Product category

Electrical Power 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), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

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

akta.pro secondary industry

Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards) (IMAGAEAA)

Keywords

• Power transformers
• Distribution transformers
• Cast resin transformers
• Electrical infrastructure
• Industrial connectors

Headquarters

HQ city

Sissach

HQ country

Switzerland

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Transformer Sales: Sale of electrical transformers including distribution transformers, power transformers, dry-type cast resin transformers, and instrument transformers to utilities, industrial customers, and infrastructure operators. This is the primary revenue stream.
2. Switchgear and Connector Sales: Sale of switches for overhead lines and railway electrification, industrial electrical connectors, electric switchboards, and distribution boards.
3. Service and Support: After-sales service, technical support, and maintenance services for installed equipment.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

R&S Group designs, manufactures, and sells transformers and electrical infrastructure products — including power transformers (up to 160 MVA), distribution transformers (up to 10 MVA), dry-type/cast resin transformers (up to 20 MVA), instrument transformers, overhead line and railway electrification switches, industrial electrical connectors, electric switchboards, and distribution boards — for utilities, renewable energy developers, industrial customers, and infrastructure operators. Operations span manufacturing facilities in Switzerland, Poland, Ireland, Italy, and the UAE, with products sold across 75 export countries through four branded subsidiaries: Rauscher & Stoecklin, ZREW, Kyte Powertech, and Tesar.

Product overview

R&S Group is a leading provider of electrical infrastructure products with a comprehensive portfolio organized around four acquired brands: Rauscher & Stoecklin (Swiss power conversion and distribution), ZREW (Polish power transformers up to 160 MVA), Kyte Powertech (Irish distribution transformers), and TESAR (Italian cast resin transformers up to 20 MVA). The core product lines include power transformers, distribution transformers (oil-type up to 10 MVA), dry-type/cast resin transformers (up to 20 MVA), instrument transformers, switches (overhead line and railway electrification), industrial electrical connectors (250-400 A for harsh environments), switchboards, and distribution boards. The company serves utilities, industry, and infrastructure sectors including power distribution, renewables, and transportation. Manufacturing facilities are located in Switzerland, Poland, Ireland, Italy, and UAE, with global distribution across 75 export countries.

Differentiator

Problem solved

Functional benefit

Products and services

• Power Transformers

Quantifiable outcome

• Over 100,000 cast resin transformers installed globally
• +3 more outcomes

Named customers15 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• Activ8 EnergiescoreStrategic or Co-development Partner · 1 December 2025Project developer for Liverpool John Lennon Airport 3 MW solar and BESS system. Implemented project in partnership with SSE Airtricity with investment of approximately £3 million.
• Eurolaite OycoreStrategic or Co-development Partner · 17 August 2022Finnish partner cooperating with ZREW for transformer delivery to Finland. Eurolaite Oy, founded in 1988, is an importer and wholesaler of specialty products for electrical engineering serving electricity stations and distribution networks.
• ENERGEL Estonia OÜcoreChannel Partner/ Reseller/ Distributor · 17 August 2022Subsidiary of Finnish company ENERGEL OY organizing sales activities in the Baltics. ENERGEL represents different manufacturers for medium and high voltage equipment, low voltage products, and electronic components.
• Mitsubishi Hitachi Power Systems Europe GmbHcoreChannel Partner/ Reseller/ DistributorMain contractor for the most modern gas and steam block in Poland at Żerań Heat and Power Plant. ZREW supplies power transformers as part of this major energy project.
• CJR PolskacoreStrategic or Co-development PartnerWind farm EPC provider for Korytnica II onshore wind project (50.5 MW) in Poland. Awarded substation construction to P&Q with ZREW supplying power transformer.
• P&QminorChannel Partner/ Reseller/ DistributorPolish electrical subcontractor responsible for substation construction for Korytnica II wind farm. Partner in ZREW transformer delivery to Iberdrola project.
• SSE AirtricitycoreStrategic or Co-development PartnerEnergy partner with Activ8 Energies for Liverpool John Lennon Airport renewable energy project. Part of SSE Group, a leading energy company.
• AxpocoreStrategic or Co-development PartnerSwitzerland's largest producer of renewable energy and international leader in energy trading. Partnered with IWB for Muttsee dam solar plant installation featuring Rauscher & Stoecklin transformers.
• Industrielle Werke Basel IWBcoreStrategic or Co-development PartnerEnergy, water, mobility and telecommunications company supplying customers in canton of Basel-Stadt, Switzerland. Leading service provider for renewable energy and energy efficiency. Partner for Muttsee dam solar project.
• BKW Power GridcoreStrategic or Co-development PartnerOperator of Switzerland's largest distribution grid. Partnered with Rauscher & Stoecklin for first transformer filled with Nynas Bio 300X bio-based insulating fluid for Gstaad region grid.
• Merus PowercoreStrategic or Co-development PartnerBESS supplier including substation for Lempäälä battery energy storage project in Finland. ZREW delivered power transformer as part of this integrated energy storage solution.
• SiemenscoreTechnology or IntegrationTechnology partner for Stadium 974 at FIFA World Cup 2022 Qatar. Tesar and Siemens collaborated on IP00 cast resin transformers installed in containerized substations for the world's first 'throwaway' stadium.

Scale indicators10 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• ABB: Swiss-Swedish global leader in electrification and power equipment, with a substantial transformer business (power, distribution, dry-type, traction) serving the same utility, industrial, and infrastructure customers as R&S Group. Direct competitor on large multi-MVA tenders and renewable energy projects.
• Hitachi Energy: Swiss-headquartered (formerly ABB Power Grids) global leader in transformers, including large power transformers, dry-type, and traction transformers. Competes head-to-head with R&S in utility and rail electrification, with a much larger installed base and broader portfolio.
• Siemens Energy: German global player in power transformers, grid technology, and renewable integration. Major competitor in power and distribution transformers up to the highest ratings, with strong European utility relationships overlapping with R&S Group's customer base.
• Hammond Power Solutions: Canadian designer and manufacturer of dry-type transformers, cast resin transformers, and related magnetics. Comparable mid-sized specialist focused on distribution and dry-type transformers for industrial, renewable, and infrastructure customers across North America and Europe.
• SGB-SMIT: German-headquartered specialist transformer manufacturer (owned by EPG) producing large power transformers up to 800 MVA plus distribution transformers. Direct competitor to ZREW in power transformers and to the wider R&S portfolio in utility and industrial segments across Europe.
• ERMCO: US-headquartered manufacturer of distribution transformers and transformer components, serving electric utilities, OEMs, and industrial customers. Comparable focus on distribution transformer volume and competes with Kyte Powertech and other R&S distribution brands.

Broad incumbents

• Schneider Electric: French multinational offering a broad electrical equipment portfolio including transformers, switchgear, and distribution boards. While not a pure-play transformer specialist, Schneider competes with R&S on industrial and infrastructure electrical infrastructure projects.
• GE Vernova: American-headquartered power business of General Electric covering generation, grid, and wind. Competes in large power transformers, grid solutions, and renewable integration alongside R&S in European utility and offshore wind projects.
• Eaton: American power management company with a significant transformer business serving industrial, utility, and data center customers. Overlaps with R&S on distribution transformers, switchgear, and electrical infrastructure, particularly in industrial and commercial applications.

Regional players

• Elsewedy Electric: Egypt-based electrical equipment manufacturer with significant power transformer and cable businesses across the Middle East and Africa. Comparable transformer portfolio and similar vertical market focus; primarily regional rather than directly competitive in R&S's core European markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/The_RS_Group

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries4 records

Funding overview

Funding rounds1 record

Investors

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

M&A3 records

Investments

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

Frequently asked questions about R&S Group