Stera Group

What Stera Group does

Stera Group Oy is a privately held Finnish industrial technology company, founded in 1991 (originally as Levyosa) and headquartered in the Turku/Naantali region, operating through its core subsidiary Stera Technologies Oy in Finland and Stera Technologies AS in Estonia. Across seven production sites and 800–900 employees, the company runs two intertwined businesses: contract manufacturing services spanning electronics and wiring harnesses, fine sheet-metal mechanics, general mechanics (sheet metal, copper busbars, welded structures, machining), IATF 16949-certified automotive manufacturing, electromechanical assemblies, and tool manufacturing; plus a portfolio of proprietary branded products, including the Stera cabinet and enclosure family (STE/STP series, IP55 outdoor cabinets, fiber enclosures, accessories), the SteraSmart IoT factory-monitoring system (wireless (S)martti sensors, (R)routi extenders, (G)veli gateways, and cloud visualization), and SteraTools (press, machining-center, and bending tool design, manufacture, and maintenance).

The company generates revenue through project-based and serial contract-manufacturing engagements for industrial customers, plus direct sales of its own cabinet, IoT, and tooling product lines. Customers span the elevator, weather-station, medical-device, mobile-machinery, automotive, and telecommunications sectors, with documented adoption by Finnish telecom operators for outdoor distribution cabinets. The go-to-market is direct enterprise sales through category-specialist account managers (electronics/wiring, cabinets/enclosures, proto and tool manufacturing), supported by a multi-language corporate website, downloadable brochures, and active social channels. Pricing is quote-based and non-public.

Stera is differentiated by a full-service industrial offering (design through production under one roof), in-house tool manufacturing, a comprehensive certification stack (ISO 9001, ISO 14001, ISO 45001, ISO 3834, IATF 16949), consecutive 100% CO2-free electricity usage, and an EcoVadis Silver Medal (top 15% of assessed companies) in 2025. Its 2026 strategic cooperation with Lainisalo Defence Painting to add welding and industrial surface treatment capacity at Kaarina signals a deliberate push into the defense industry alongside its existing automotive and telecom bases.

Name

Stera Group

Legal name

Stera Group Oy

Website

https://stera.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Stera Group is a Finnish industrial technology company and contract manufacturer serving elevator, automotive, medical, telecom, and mobile-machinery customers with electronics, sheet-metal mechanics, tool manufacturing, and proprietary cabinet and IoT products across seven sites in Finland and Estonia.

Ownership category

akta.pro rank

Product category

Industrial Contract Manufacturing

NAICS

Commercial and Service Industry Machinery Manufacturing (333310)

SIC

General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels) (IMAHAEAF)

Keywords

• Contract manufacturing
• Electronics manufacturing
• Sheet metal fabrication
• IoT product development
• Industrial enclosures

Headquarters

HQ city

Turku

HQ country

Finland

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Contract Manufacturing Services: Customized mechanics, electronics, and wiring/cable harness contract manufacturing plus tool manufacturing. Services include product industrialization and manufacturability expertise during new product introduction phase.
2. Stera Cabinet Products: Wide range of equipment and distribution cabinets with accessories including STE cabinets, STP cabinets, wall cabinets, apartment enclosures, panels, shelves, IP55 cabinets, and fiber optic enclosures.
3. SteraSmart IoT Solutions: Production automation and wireless production environment monitoring systems with sensors and cloud-based visualization software.
4. SteraTools Tool Manufacturing: Press tool, machining center tool, and bending tool manufacturing and maintenance services for sheet metal production.
5. Design Services: Product industrialization and manufacturing expertise support, product development support, and production jig design and implementation.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Stera Group is a Finnish industrial contract manufacturer that produces mechanics and electronics on behalf of business customers, offering sheet metal fabrication, machining, assembly, electronics manufacturing, and proprietary IoT-enabled products. The company operates production facilities in Finland and Estonia with more than 800 employees, serving industrial customers across Europe with full-service manufacturing from prototyping to series production.

Product overview

Stera Group operates as a multi-product industrial technology company combining contract manufacturing services with proprietary branded products. The product portfolio consists of two main pillars: (1) Contract manufacturing services covering electronics and wiring harnesses, high-precision sheet metal mechanics, general mechanics (sheet metal, copper busbars, welded structures, machining), IATF 16949-certified automotive manufacturing, electromechanical assemblies, and tool manufacturing; (2) Proprietary branded products including the Stera cabinet and enclosure product family (STE series, STP series, wall-mounting cabinets, IP55 distribution cabinets, data communication cabinets, fiber optic enclosures, and accessories such as plinths, shelves, panels, ventilation modules), SteraSmart factory monitoring IoT system, and SteraTools tool manufacturing services. Supporting these is a design services capability for product industrialization and manufacturing readiness. The company serves diverse industries including elevators, weather stations, medical devices, mobile machinery, automotive, and telecommunications.

Differentiator

Problem solved

Functional benefit

Brands

• SteraSmart: IoT-based factory and production environment monitoring system using wireless sensor technology, providing real-time data on temperature, humidity, motion, and vibration to optimize production processes.
• SteraTools

Products and services

• Contract Manufacturing Services
• SteraSmart

Quantifiable outcome

• 100% carbon dioxide free electricity usage
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Lainisalo Defence Painting OycoreStrategic or Co-development Partner · 11 February 2026Strategic cooperation agreement enabling over 40 immediate recruitments in Kaarina. Lainisalo Defence Painting Oy will invest in industrial surface treatment facility specializing in wet painting services with modern technical features designed to meet high surface treatment requirements of defense industry. Facility expected to start operations in summer 2026, employing up to 20 people. Stera will build welding operations at Kaarina facility employing approximately 20 welding professionals initially. Combined services (welding, surface treatment, final assembly) create modern, competitive, high-quality service concept at Kaarina facility.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Inission AB: Inission is a Swedish industrial contract manufacturer offering electronics, mechanics, and product development across the Nordics. Its broad industrial customer base and integrated assembly services make it a direct comparable to Stera's contract manufacturing portfolio.
• Scanfil: Scanfil is a Finnish-headquartered electronics contract manufacturer with global operations serving industrial, automotive, telecom, and medical customers. Like Stera, it offers EMS plus integrated mechanics, with comparable Nordic cost-base and customer verticals.
• Hanza Holding: Hanza is a Swedish-based industrial contract manufacturer providing mechanics, electronics, and assembly under one roof. Its business model of integrated contract manufacturing for industrial OEMs mirrors Stera's electronics-and-mechanics service offering.
• Note AB: Note AB is a Nordic EMS and contract manufacturer with operations in Sweden, Finland, Estonia, and other locations. Its product-range electronics assembly and box-build services, plus Finnish/Estonian footprint, closely overlap with Stera Technologies.
• Kitron ASA: Kitron is a Nordic EMS listed in Norway serving defense, energy, industrial, and medical device customers. Its PCB/electronics assembly and box-build operations overlap directly with Stera's electronics and wiring-harness manufacturing capabilities.

Broad incumbents

• Cicor Technologies: Cicor is a Swiss-headquartered European EMS provider serving aerospace/defense, medical, and industrial customers. As a larger, broader European EMS incumbent, it competes with Stera for high-mix industrial contract manufacturing programs.
• Plexus Corp: Plexus is a global EMS providing engineering and manufacturing services for complex regulated products. Its medical and industrial verticals overlap with Stera's electronics manufacturing for medical devices and industrial customers.
• BMK Group: BMK Group is a German industrial electronics manufacturing services provider serving medium-volume industrial customers. As a larger European EMS with similar industrial focus, it represents broad incumbent competition for Stera's customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/stera-technologies-595864133945688
• LinkedInlinkedin.com/company/stera-technologies-oy
• Instagraminstagram.com/steratechnologies

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 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 Stera Group