Destia - EPC company profile

Destia: Explore engineering capabilities, representative projects and official company contacts.

Destia — Transport and energy infrastructure delivery and maintenance

Destia Oy is a Finnish infrastructure and construction-services company, part of Colas. It designs, builds and maintains roads, railways, electricity networks and other public infrastructure. Energy work includes defined grid and equipment packages; the company should be described as an infrastructure contractor rather than as a general power-plant EPC provider.

Legal name: Destia Oy
Headquarters: Registered domicile and head office: Helsinki, Finland
Founded: 2008
Official website: Destia
URL: https://voltformer.com/epc-contractors/destia
Markdown: https://voltformer.com/epc-contractors/destia.md
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CEO and leadership profile

Heikki Haasmaa

Chief Executive Officer

He has been CEO of Destia since 1 March 2026, following the appointment announced in January 2026. He was previously CEO of Sitowise and held leadership roles in KONE’s maintenance business. He holds an MSc in Technology.

In role since: 2026-03-01
Sources checked: 2026-10-11
Profile: Heikki Haasmaa

Destia · Current management · Destia · 2026 CEO appointment announcement · Destia · 2025 sustainability report: actual CEO transition

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Engineering specializations

Electricity networks and substations
Rail, road and urban infrastructure
Energy equipment and civil works packages
Rail, tramway and road infrastructure

Declared capabilities

Basic and detailed engineering: Listed capability; confirm project-specific scope
Procurement and supply: Not listed
Civil and structural construction: Listed capability; confirm project-specific scope
Testing and commissioning: Listed capability; confirm project-specific scope
High-voltage substation EPC: Not listed
Transmission lines: Listed capability; confirm project-specific scope
Turnkey power plant EPC: Not listed
Grid interconnection: Listed capability; confirm project-specific scope

Representative projects

Jylkkä synchronous condenser

Capacity / scope: Destia delivered implementation from design and civil works through installation, testing and commissioning; GE supplied the generator and flywheel system.
Country: Finland | Client: Fingrid
Description: The grid-support asset was commissioned in 2025. The synchronous condenser stabilizes voltage and provides inertia; it does not generate electricity as a power plant.
Technologies: Synchronous condenser, Grid voltage and inertia support
Original source: https://destia.fi/en/article/the-synchronous-condenser-enables-the-growth-of-wind-power-production/

Yllikkälä Power Reserve 2 battery storage

Capacity / scope: Infrastructure and construction package for a 56.6 MW / 112.9 MWh battery system; commissioned in the first half of 2025.
Country: Finland | Client: Neoen
Description: Destia worked on infrastructure for Neoen’s battery storage in Lappeenranta. The reported MW and MWh are asset ratings, not a Destia generation capacity.
Technologies: Battery energy storage, Grid balancing
Original source: https://destia.fi/en/article/the-largest-battery-storage-in-the-nordics-was-built-with-precise-teamwork/

Järvilinja 400/110 kV transmission line

Capacity / scope: Construction of an approximately 82 km 400/110 kV transmission line in North Savo alongside the existing route; completion was forecast for end-2026.
Country: Finland | Client: Fingrid
Description: The project strengthens north-south transfer capacity and enables connection of new renewable generation and industrial loads. It is a transmission-line construction contract, not a turnkey power station.
Technologies: 400/110 kV transmission line, Grid connection capacity
Original source: https://destia.fi/en/release/destia-to-build-a-new-jarvilinja-power-line-for-fingrid-in-north-savo/

Technical services

Grid and energy infrastructure: Design, civil construction, installation and commissioning for defined network and grid-support assets; equipment supply may be by partners.
Infrastructure lifecycle services: Maintains and renews transport infrastructure, including railway, road, lighting and urban systems.
Power substations and grid infrastructure: Turnkey delivery of selected high-voltage substations and other electrical infrastructure; scope is defined per customer contract.
Railway systems and civil works: Builds and renews railway and light-rail infrastructure, including track-related civil and technical works.

Standards and certifications

Official contacts

Address: Registered domicile and head office: Helsinki, Finland
Official website: https://destia.fi/en/contact-us/

Reference statistics

Employees: About 1,900
Owner: Colas (Bouygues Group)
Parent group: Colas Group

Company and energy news

West Helsinki light-rail project begins implementation — 2026-06-04 · Markdown
Destia signs EUR 200 million second phase order for Vantaa light rail — 2026-05-07 · Markdown
Destia to deliver three substation contracts for Fingrid — 2026-04-29 · Markdown
Destia reports record growth in 2025 and focus on sustainable infrastructure — 2026-03-17 · Markdown
Destia explains Jylkkä synchronous condenser’s role in grid stability — 2026-03-04 · Markdown
Yllikkälä Power Reserve 2 battery storage is completed — 2026-03-04 · Markdown
Destia appoints Heikki Haasmaa as CEO — 2026-01-15 · Markdown

Other languages

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