What TSN GROUP OÜ does

TSN GROUP OÜ is an Estonian private limited company (OÜ) headquartered in Kiviõli that delivers electrical engineering services for industrial, residential, commercial, and government clients across Estonia, Finland, France, and Germany. Founded in 1996 and operating with a team of up to 25 specialists, the firm began as a subcontractor for electrical and low-voltage system installation and has since expanded into full-cycle general contracting for engineering works. Its core offerings include electrical installation (renovation, wiring, panel replacement, grounding, lightning protection, outdoor networks), electrical network maintenance under long-term service contracts, industrial LED lighting replacement, and DALI-based LED lighting systems with HELVAR control technology that deliver up to 50% energy savings. The company also distributes branded electronics sourced from 112 online and 47 offline supplier stocks across the Baltic and Scandinavian markets, and provides development/design services and commercial software programming.

The business model is primarily project- and time-based professional services, supplemented by hardware distribution. Pricing is published and structured hourly: €32 for the first work hour and €27 for each subsequent hour at standard rates, with urgent or out-of-hours work (after 17:00 on weekdays, weekends, and public holidays) priced at €60 for the first hour and €35 thereafter; transport is billed at €0.35/km outside Ida-Virumaa. Go-to-market is sales-led direct contact via phone (+372 54 58 44 81), email ([email protected]), and the company website tsngroup.ee, with inquiries answered within one business day. Differentiators include 28 years of operating history, a 2-year warranty on all electrical installation work, multilingual coverage including Russian, and brand partnerships with HELVAR, Baltmatic, and Eleon, the last of which was deployed on the 100 MW Aidu Wind Farm, the largest wind power plant in the Baltic region.

Customer concentration is diversified across named engagements such as the Aidu Wind Farm, Tallinn Hotel FORUM, LUKOIL Moscow head office, French and Estonian public building reconstructions, shopping malls, and residential associations, though project lumpiness is inherent given the small specialist team. The company is privately held with no disclosed parent, institutional investors, funding rounds, patents, or formal certifications, and revenue is not publicly disclosed.

Name

TSN GROUP OÜ

Legal name

TSN GROUP OÜ

Website

https://tsngroup.ee

Company type

Private

Operating status

Operating

Short description

TSN GROUP OÜ is an Estonian electrical engineering services firm providing electrical installation, network maintenance, DALI/Helvar LED lighting, and electronics supply. It serves industrial, residential, and government clients across Estonia, Finland, France, and Germany.

Ownership category

akta.pro rank

Headquarters

HQ city

Kiviõli

HQ country

Estonia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Electrical Installation Services: Professional electrical installation work including renovation of old electrical systems, new wiring installation, electrical panel replacement, outlet and switch installation, lighting fixture installation, grounding and lightning protection systems, outdoor electrical network installation, and reconstruction of electrical installations of varying complexity.
2. Electronics Supply: Supply of electronics from international warehouses and factories. Distribution of branded products for Baltic and Scandinavian countries.
3. Development and Design Services: Development and design services based on experience and according to client requirements and specifications.
4. Software Programming: Commercial software programming including utilities, plugins for client applications, and individual applications for projects and databases.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

TSN GROUP OÜ is an electrical engineering services provider that performs electrical installation, renovation, and reconstruction of electrical systems; ongoing maintenance of electrical networks for residential associations through to production facilities; and installation of DALI-controlled LED lighting systems with Helvar dimming. The firm additionally supplies electronics sourced from 112 online and 47 offline international stocks and offers custom development, design, and commercial software programming services.

Product overview

TSN GROUP OÜ is an electrical engineering services company offering a portfolio of services centered on electrical installation, maintenance, and related solutions. The core offerings include Elektrimontaažitööd (Electrical Installation Work) for comprehensive electrical systems installation and renovation, and Elektrivõrkude hooldus (Electrical Network Maintenance) for ongoing maintenance of electrical installations. These are complemented by specialized LED Lighting solutions with DALI Helvar dimming technology, Industrial Lighting Replacement services for manufacturing facilities, Electronics Supply with access to international stock networks, Development and Design Services, and Software Development for commercial applications. The company also executes major projects such as the Aidu Wind Farm (100 MW). The portfolio is organized as service offerings rather than a unified software platform, with each service area being distinct and client-specific rather than modular product components.

Differentiator

Problem solved

Functional benefit

Products and services

• Elektrimontaažitööd (Electrical Installation Work) Comprehensive electrical installation services for industrial, commercial, and residential clients, including renovation of old electrical systems, new wiring installation, electrical panel replacement, outlet and switch installation, lighting fixture installation, grounding and lightning protection systems, outdoor electrical network installation, and reconstruction of electrical installations of varying complexity.
• Elektrivõrkude hooldus (Electrical Network Maintenance) Maintenance services for electrical installations ranging from apartment associations to production facilities, performed by trained specialist teams, with discounted pricing available under long-term operation and maintenance contracts.
• DALI LED Lighting with Helvar Dimming Installation Installation service for modern DALI (Digital Addressable Lighting Interface) LED lighting systems integrated with Helvar control technology, enabling energy savings up to 50% with automated control and integration with motion and light sensors for optimized energy consumption.
• Industrial Lighting Replacement Lighting replacement services for industrial enterprises to ensure worker safety and improve efficiency, including professional consultation for optimal lighting selection based on company needs and natural light availability.
• Electronics Supply (Elektroonika) Supply of branded electronics sourced from international warehouses and factories, leveraging access to 112 online stocks worldwide and 47 offline company stocks. Operates as official distributor for branded products across Baltic and Scandinavian countries.
• Development and Design Services (Arendus) Development and design services based on company experience, delivered according to client requirements and specifications for engineering and related projects.
• Software Development (Tarkvara Arendus) Commercial software programming services covering utilities, plugins for client applications, and individual applications for projects and databases.
• Urgent and Out-of-Hours Electrical Service Premium electrical service availability for urgent calls within 2 hours and outside standard working hours (Monday–Friday 17:00–09:00, weekends, and public holidays), billed at higher hourly rates to ensure rapid response.

Quantifiable outcome

• Energy savings up to 50% with DALI LED lighting systems
• +2 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Four partnerships are on record, tiered major, core and minor.

• EleonmajorStrategic or Co-development PartnerEleon is the wind turbine manufacturer for the Aidu wind farm project. TSN GROUP installed 30 Eleon 3.4 MW turbines for the 100 MW Aidu wind power plant, the largest in the Baltic region.
• BaltmaticcoreTechnology or IntegrationBaltmatic is a brand partner for lighting solutions. Their specialists provide professional consultation for selecting optimal lighting options for enterprises.
• HELVARcoreTechnology or IntegrationHELVAR is the technology partner for DALI lighting control systems, providing the control technology that enables energy savings up to 50% in LED lighting installations.
• Coop Pank ASminorOthersBanking partner for financial operations. SWIFT code: EKRDEE22, IBAN: EE664204278616212706

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• YIT Corporation: Large Finnish construction and building services group active in the Baltics; overlaps with TSN on electrical installation for residential and commercial developments but operates as a much broader diversified construction incumbent.
• Skanska AB: Major Nordic-headquartered construction and project development group with significant residential, commercial, and infrastructure electrical work; comparable on installation capabilities but with vastly larger scale and a broader portfolio.
• AFRY AB: European engineering, design, and consulting firm with strong presence in Nordic energy and industrial automation — comparable as a partner for industrial electrification projects like wind farms, though operating at a much larger consultancy scale.
• NCC AB: Nordic construction company building residential, commercial, and infrastructure projects in the Nordics and Baltics; overlaps with TSN on electrical scope within larger construction projects, but operates as a diversified general contractor.
• Signify N.V. Global lighting leader (formerly Philips Lighting) and major supplier of LED lighting systems including DALI-enabled luminaires; comparable as the underlying lighting-equipment vendor for industrial LED retrofit projects like TSN's.

Emerging players

• Helvar Oy Ab: Finnish-headquartered DALI lighting controls specialist and TSN's named technology partner; comparable as a niche player in the same LED/DALI lighting-controls value chain that TSN's flagship offering depends on.

Direct peers

• Bravida Holding AB: Leading Nordic installer of electrical, HVAC, and technical services for commercial and industrial properties; operates in Sweden, Norway, Finland, Denmark, and the Baltics — closely aligned business model of regional electrical contracting and maintenance.
• Assemblin Group: Nordic installation and service contractor focused on electrical, heating/sanitation, and ventilation for commercial buildings; comparable as a multi-country technical services provider with installation plus recurring maintenance revenue.
• Caverion Corporation: Finnish-headquartered provider of building solutions including electrical installations, lighting, and maintenance across the Nordics and Baltics — directly comparable as a multi-country electrical contractor serving industrial and commercial customers in the same regional footprint.

Others

• Arrow Electronics, Inc. Global electronics distributor with extensive Nordic and Baltic operations; comparable as an electronics distribution counterpart serving the same reseller and integrator customer base that TSN's electronics supply business targets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

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 TSN GROUP OÜ