Signal Group

Networks, energy infrastructure and data centres from one group

We are a Finnish multi-sector group shaking up old and slow ways of working. We combine a passion for hands-on work with the latest technology, so that things run more easily, more quickly and with uncompromising quality.

The group in figures 2026
+270employees of our own
+1 300 kmof trenches dug
+17 000broadband connections commissioned
+80 000screw piles installed
+65excavators in our own fleet
+45 M€turnover

Data centres

We build data centres in Finland and around the world

Signal Group delivers data centre projects in Finland and abroad. Our core expertise covers the technical systems of data centres, from fibre connections and cabling to power distribution and cooling automation. We serve our customers in the Nordics and across Europe, combining experienced professionals, practical field expertise and smooth project management.

We take responsibility for the agreed scope, from design to installation, testing and commissioning. We work either as a turnkey partner or as part of the customer’s own project organisation, adapting our team to the needs of the project. For the customer, this means clear division of responsibilities, flexible delivery and a carefully documented result. For us, good cooperation shows on site: work moves forward, information flows and agreements are kept. We understand how schedule-critical data centre projects are, and we know the only option is to deliver on time, without compromise.

Server hall and equipment racks
Finnish Data Center AssociationSignal Group is a member of the Finnish Data Center Association (FDCA)
Map of Finland showing the locations of Signal Group companies

Locations

Local presence, nationwide strength

Our companies have locations covering all of Finland’s largest cities. Many Signal Group companies operate both locally and nationwide, so there is always a team close by.

Company · founded · home town

  • Länsi-Infra2024 · Turku
  • Konepalvelu Kuivas2012 · Oulu
  • SKT-Infra2018 · Oulu
  • Manse Networks2024 · Lempäälä
  • Kavora2014 · Pieksämäki
  • Velocy2025 · Tampere
  • AI Networks2025 · Turku
  • Brodetic2005 · Hyvinkää

About us

We build infrastructure that lasts

A group founded in 2024 whose companies share the same values on quality, customer satisfaction and employee well-being.

About us

Signal Group Oy is a Finnish multi-sector group founded in 2024 that brings together the expertise of several companies. Together we can offer comprehensive solutions for infrastructure and industrial construction. Signal Group companies share the same values on quality, customer satisfaction and employee well-being.

Responsibility and quality

Our operations are built on responsibility, quality and cooperation. We follow the strictest standards in the industry and always put employee well-being, quality and our customers’ needs first.

Our mission

We build sustainable, functional infrastructure that serves society now and in the future. Our ambition is to raise the standards of the industry and get things right the first time. We aim for calm, measured growth and choose companies with a high standard of quality to join us.

Companies

8 companies, one promise of quality

Each company is an expert in its own field under its own name. As a group, we share equipment, expertise and the same quality requirements.

Länsi-Infra

Länsi-Infra – Fibre and power networks, solar parks, indoor networks

Länsi-Infra is a network builder from Turku whose home ground is Southwest Finland. We build and dismantle fibre and power networks, and when there is a fault in the region’s fixed telecom network, our team heads out to fix it. The same people handle foundations, mounting structures and panel installations for solar parks, as well as indoor networks for buildings. You can order a single work package from us or the entire contract as a design-and-build project. What matters most to us is that we keep our promises and the network still works years from now.

Expertise
Fibre and power networks, solar parks, indoor networks
Area
Southwest Finland
lansi-infra.fi

Konepalvelu Kuivas

Konepalvelu Kuivas – Infrastructure network construction and earthworks

KONEPALVELU KUIVAS Oy is a growing and developing Finnish-owned infrastructure network builder from Oulu. Our cornerstones are customer focus, versatile expertise, staff training and solid work experience. We currently employ around 120 professionals and continuously develop our company and operations to be more efficient and modern. Our committed staff and versatile machinery allow us to serve both large and small projects.

Expertise
Infrastructure network construction and earthworks
Area
Oulu · around 120 professionals
konepalvelukuivas.fi

SKT-Infra

SKT-Infra – Telecom networks from copper to fibre and wireless

A telecom specialist originally from Oulu, operating nationwide. We build telecom networks and solve their problems, from copper to fibre and all the way to wireless. We invest in our staff’s expertise, whatever the data transmission technology or problem. We employ around 20 professionals in the field.

Expertise
Telecom networks from copper to fibre and wireless
Area
Nationwide
sktinfra.fi

Manse Networks

Manse Networks – Fibre and power networks, solar power plants

Manse Networks is a network builder from Lempäälä that started in 2024. The name reflects its home region: we work mainly in Pirkanmaa and Central Finland, but travel further when needed. We build fibre and power networks, install mounting structures and panels for solar power plants and take care of network maintenance. Design and documentation are handled in-house, so the client gets the whole chain from one contractor.

Expertise
Fibre and power networks, solar power plants
Area
Pirkanmaa and Central Finland
mansenetworks.fi

Kavora

Kavora – Railway construction and track signs

Kavora Oy is a company founded in 2014 that specialises in railway construction. We are Finland’s leading contractor for track sign installations, designing and installing thousands of track signs every year. Our expertise also extends to track superstructure work, and we can provide both workers and machinery for demanding needs.

Expertise
Railway construction and track signs
Area
Founded in 2014
kavora.fi

Velocy

Velocy – Electrical and automation solutions

Velocy Oy is a Finnish-owned expert in electrical and automation solutions, founded in 2025. Our strengths are broad experience, customer-focused service and uncompromising quality. Our work is based on agility, continuous development and strong technical expertise – to us, velocity means movement, direction and efficiency. We are more than a supplier: we are a partner that helps our customers reach their goals safely and reliably, without compromise.

Expertise
Electrical and automation solutions
Area
Founded in 2025
velocy.fi

AI Networks

AI Networks – Data centre installations and structured cabling

AI Networks is a Finnish-owned data centre installation specialist and part of Signal Group. Our strengths are a team of experienced professionals, fast action and an uncompromising quality standard. We deliver complete data centre installations, infrastructure commissioning, structured cabling and data centre interconnects in Finland and internationally.

Expertise
Data centre installations and structured cabling
Area
Finland and internationally
ainetworks.fi

Brodetic

Brodetic – Embroidery, printing and corporate textiles

Brodetic is a family business founded in 2005. Speed and flexibility are our uncompromising principles. We take our customers’ individual wishes into account and make them happen. Depending on our customers’ needs, we embroider and heat-transfer print both small and large quantities. Our range also includes promotional textiles, club and workwear, and corporate gifts.

Expertise
Embroidery, printing and corporate textiles
Area
Family business since 2005
brodetic.fi

For entrepreneurs

Could your company be next?

Join the growing Signal Group network. We are looking for entrepreneurial professionals who want to build the infrastructure of the future together with reliable partners.

Signal Group grows together with entrepreneurs. In the joint venture model, the entrepreneur brings their expertise, vision and entrepreneurial spirit, and the group provides capital, resources, networks and other expertise for growth.

  • Growth capital and resources
  • Access to the group’s networks and expertise
  • Decisions made close to the customer
  • Entrepreneurship and ownership stay at the core

Aleksi Siikarla, Group CEO · +358 50 400 0588

Contact

Let’s talk about your project

Jesse AholaBusiness Development, administration
Jani KuivasHead of Infrastructure, administration
Aleksi SiikarlaGroup CEO, acquisitions, partners, administration

Signal Group Oy
Haarlankatu 4B, 33230 Tampere, Finland
Business ID 3477030-2
asiakaspalvelu@signalgroup.fi

Billing details

Signal Operations Oy
Postal address: Haarlankatu 4B, 33230 Tampere, Finland
E-invoicing address: 003734770302
Operator ID: 003723609900 Pagero
E-mail invoices: 003734770302@xbs-salo.com

Whistleblowing channel

Get in touch

Would you like to request a quote? Do you own a company whose values include high quality, satisfied staff and customer promises that are always kept – and would you like to be part of the Signal Group community?

Contact us using the form below or by e-mail at asiakaspalvelu@signalgroup.fi – our experts will reply within 24 hours.