Name

Telesilta Oy

Legal name

Telesilta Oy

Website

https://telesilta.fi

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Headquarters

HQ city

Uusikaupunki

HQ country

Finland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Marine Electrical Contracting: Electrical contracting services for shipbuilding industry including design, installation, commissioning and maintenance of electrical, automation and navigation systems for vessels.
2. Industrial Electrical Contracting: Process electrification and instrumentation services for process and manufacturing industries, power plants, and demanding construction projects including electrical contracting, repair and maintenance.
3. Design-and-Build Contracting: Comprehensive electrical contracting for new building construction and renovation projects including challenging commercial properties, public buildings, schools and hospitals.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Telesilta Oy is a Finnish electrical contracting company that delivers turnkey electrical solutions for the marine industry, industrial facilities, and demanding construction projects. The company executes the full project lifecycle — from preliminary design and installation through commissioning to lifetime maintenance — covering ship electrification, automation, and navigation systems; process electrification and instrumentation for factories and power plants; and electrical contracting for commercial buildings, schools, and hospitals. Services are delivered primarily on-site at customer locations across Finland by a small specialized team backed by the Harju Elekter Group's switchboard manufacturing capability.

Product overview

Telesilta Oy is an electrical contracting company that provides comprehensive electrical engineering solutions across three main sectors: marine industry, industrial facilities, and building/infrastructure projects. The company delivers turn-key electrical solutions from preliminary design through installation, commissioning, and lifetime maintenance. As part of the Harju Elekter Group, Telesilta specializes in demanding electrical work including electrification, automation, navigation systems, process electrification, and instrumentation. The three core service offerings (Marine Industry Electrical Solutions, Industrial Contracting Services, and Building & Infrastructure Electrical Services) operate as integrated capabilities under the company's unified service model, with all services supported by the parent company's electrical and automation switchboard manufacturing.

Differentiator

Problem solved

Functional benefit

Products and services

• Marine Industry Electrical Solutions
• Industrial Contracting Services
• Building and Infrastructure Electrical Services

Named customers12 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• BMH Technology OycoreStrategic or Co-development PartnerLong-standing partnership between Harju Elekter Group and BMH Technology, with Telesilta providing on-site electrical contracting services. Telesilta's first collaboration on BMH Technology's project site was the Kokkola biofuel station in 2024, extending the partnership into full turnkey delivery. Also collaborated on Sappi Kirkniemen wood chip handling line project in 2025.
• Harju Elekter GroupcoreOthersParent company of Telesilta. Harju Elekter Group is a Nordic industrial company with roots in electrical engineering tradition. Telesilta operates as a subsidiary, building on over 40 years of electrical contracting expertise within the group. Harju Elekter Oy supplies electrical and automation switchboards that Telesilta installs on project sites.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Harju Elekter Oy: Estonian sister company within Harju Elekter Group that manufactures the switchboards Telesilta installs and delivers its own electrical engineering projects. Closely comparable capability stack and integrated group offering to Telesilta.
• Kongsberg Maritime: Norwegian provider of maritime electrical, automation and navigation systems. Directly comparable to Telesilta's marine-systems integration offering across shipyards globally, with overlapping scope in vessel electrification and bridge/navigation packages.
• Norwegian Electric Systems (NES): Norwegian designer and supplier of marine electrical systems, energy storage and hybrid propulsion for vessels. Highly comparable to Telesilta's marine electrification scope and target shipyard customer base in the Nordic region.
• Eltel Networks: Nordic-headquartered electrical infrastructure contractor serving power, communication and industrial customers with a similar project-based delivery model. Comparable to Telesilta's industrial and infrastructure electrical contracting offering across the Nordics.

Broad incumbents

• Bravida: Nordic leader in technical installations (electrical, HVAC, plumbing) with a similar project-based contracting model and active Finnish operations. Overlaps with Telesilta's industrial and building/infrastructure electrical contracting segments at larger scale.
• Caverion: Finland-headquartered provider of technical building and industrial services including electrical installations. Comparable to Telesilta's building/infrastructure and industrial contracting segments but with broader HVAC, security and service offerings across the Nordics and Baltics.
• Assemblin: Nordic multi-technical installation contractor with electrical contracting capabilities serving industrial, commercial and infrastructure customers, including in Finland. Comparable delivery model and customer mix to Telesilta's industrial and building segments.
• Wärtsilä: Finnish marine technology group providing electrical, automation and lifecycle services for marine and energy markets. Overlaps with Telesilta's marine customer base and vessel systems scope but operates at much larger scale across the full marine value chain.
• ABB Marine & Ports: Global provider of marine electrical, automation and propulsion solutions as part of ABB's wider industrial portfolio. Overlaps with Telesilta's vessel electrification, automation and navigation scope but at much larger scale and broader product breadth.

Regional players

• NRC Group: Nordic infrastructure contractor with electrical capabilities serving rail, road and energy infrastructure. Comparable in delivery model and project scale to Telesilta's infrastructure-adjacent work, though concentrated in transport infrastructure rather than marine/industrial.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/telesilta-oy

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Telesilta Oy