Prefabmästarna

What Prefabmästarna does

Prefabmästarna Sverige AB is a Swedish manufacturer of prefabricated concrete elements and structural components, headquartered in Öjebyn with a second factory in Norsjö acquired in June 2024. The company operates from a heritage site dating to 1916 and is owned by the Finnish concrete majors Lujabetoni and YBT since 2012. Its product portfolio spans the full range of precast structural elements — beams, walls (including highly insulating sandwich walls), hollow-core slabs (Håldäck), massive prestressed composite slabs (Samverkansplattor), STT and TT cassettes, columns, piles, balconies, corridors, stairs, retaining walls, and custom elements — supplemented by L-balk permanent formwork and access to Lujabetoni-supplied foundation piles. The Öjebyn facility operates as a full-range factory of approximately 11,000 m² under cover with up to 70,000 tonnes/year finished-element capacity, and the Norsjö plant focuses on exterior and interior walls, columns, beams, plinths, balconies, and miscellaneous concrete products. The combined entity employs approximately 137 people across two factories and engineering offices in Öjebyn, Boden, Luleå, Strömsund, and Umeå.

The company sells directly to construction contractors (Skanska, Peab, NCC), real estate developers (Ikano Bostad, Peab Bostad, Gavlegårdarna, Balticgruppen, AB Pitebo), public and industrial clients (LKAB, Boliden Mineral, Stora Enso, Volvo Lastvagnar, Scandic Hotels, Västerbottens l\u00e4ns landsting, Piteå Kommun), and individual homebuilders. Sales are project-based using an enterprise field motion: each project is assigned a dedicated project manager and the company encourages early-stage customer engagement to optimise design and scheduling. Pricing is bespoke and not publicly disclosed. 2023 combined revenue was approximately 355 MSEK (Prefabmästarna ~290 MSEK standalone plus Norsjö Betong ~65 MSEK), with quality backed by internal controls and external NORDCERT certification, and a full EPD/BVB compliance portfolio across both factories.

Revenue drivers are project-based and tied to the broader Swedish construction cycle, with concentration in northern Sweden and exposure to landmark industrial, residential, commercial, and public-buildings projects. The company is positioning itself to benefit from the large industrial investment wave planned or underway in Norrbotten (green steel, mining, battery supply chain) by adding Norsjö capacity and signaling a future push into the Mälardalen region. Geographic reach currently extends across Sweden, with structural competitive advantages rooted in 100+ years of concrete casting heritage, a broad single-source product range, in-house engineering, and significant factory capital base.

Name

Prefabmästarna

Legal name

Prefabmästarna Sverige AB

Website

https://prefabmastarna.se

Company type

Private

Founded year

1916

Operating status

Operating

Short description

Prefabmästarna is a Swedish manufacturer of prefabricated concrete elements — walls, slabs, beams, columns, and cassettes — produced at its Öjebyn and Norsjö factories and sold directly to contractors, developers, and public-sector clients across Sweden.

Ownership category

akta.pro rank

Product category

Precast Concrete Elements

SIC

Concrete Products, Except Block & Brick (3272)

akta.pro primary industry

Precast Concrete Products (IMADAAAB)

Keywords

• Prefabricated concrete elements
• Precast concrete structures
• Hollow-core slabs
• Concrete wall panels
• Structural concrete components

Headquarters

HQ city

Öjebyn

HQ country

Sweden

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Prefabricated Concrete Elements: Prefabmästarna generates revenue through the manufacture and sale of prefabricated concrete elements for the construction industry. This includes structural components such as beams, columns, walls, floor slabs, cassettes, and custom elements, as well as related project services including design, engineering, delivery, and installation. Revenue is project-based, varying with the size and scope of each construction project.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Prefabmästarna manufactures and sells prefabricated concrete elements and structural components for the construction industry, including beams, walls, hollow-core slabs, composite slabs, cassettes, columns, piles, balconies, corridors, stairs, retaining walls, and custom elements. Products are factory-produced in Öjebyn and Norsjö (combined capacity up to 70,000 tonnes/year) and delivered to construction sites across Sweden. Each project is supported by a dedicated named project manager and includes engineering, delivery, and installation services.

Product overview

Prefabmästarna is a specialized manufacturer of prefabricated concrete elements. Their product portfolio centers around structural building components including walls (Vägg), beams (Balk), floor slabs (håldäck, massiva samverkansplattor, förspända bjälklagsplattor), columns (Pelare), and specialized elements (TT-kassetter, STT-kassetter, L-balk). They also offer balconies, corridors, and custom elements. Their main facility in Öjebyn is a full-range factory producing up to 70,000 tons/year of finished concrete elements, while their Norsjö facility focuses on exterior walls, interior walls, columns, beams, bases, balconies, and miscellaneous products. The company serves residential, industrial, commercial, office, and public buildings, as well as infrastructure projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Balk (Beams) Load-bearing beams that form an important part of a building structure's load-bearing capacity. Prefabmästarna works with all types of beams in most dimensions, using optimized concrete recipes to achieve strong concrete that allows for reduced dimensions and lower structural weight.
• Vägg (Walls) Wide range of wall elements from thin massive walls such as bases and cladding elements to thick, highly insulating, energy-efficient sandwich elements. Offers various textures and color treatments including painting, coloring, and pre-finished plastered surfaces.
• Massiva samverkansplattor (Massive Composite Slabs) Massive, prestressed composite slabs delivered in thicknesses from 120mm up to customer requirements. Used in both residential and industrial buildings, with high load-bearing capacity and thermal mass for energy efficiency. Often eliminates need for propping during construction. The company claims to have pioneered this product offering.
• Förspända bjälklagsplattor (Prestressed Floor Slabs) Similar to massive floor slabs but without protruding reinforcement that interacts with the topping. Used as complement pieces in hollow core floor structures or when a heavy floor slab is needed that can be poured or plastered.
• STT-kassetter (STT Cassettes) Saddle-shaped roof cassettes primarily used in industry. Can handle very long spans and are relatively lightweight.
• TT-kassetter (TT Cassettes) Alternative for various types of floor structures. Has high load-bearing capacity even at long spans, used frequently in parking decks and industrial floors with large spans, often in combination with high loads.
• L-balk (L-beam) Most rational and time-efficient method for pouring slab on ground. Available in three heights: 420, 600, and 800mm. Suitable for home garages or multi-story buildings. Functions as a permanent formwork once delivered and placed.
• Balkonger och loftgångar (Balconies and Corridors) Balconies and corridors delivered according to customer specifications. Has industrialized methods for anchoring in both own prefab floors and cast-in-place floors.
• Pelare (Columns) Complete range from large columns in industrial projects with high load capacity requirements to short thin columns for smaller loads. Works with round, square, and rectangular columns.
• Håldäck (Hollow Core Slabs) Most industrialized floor element product, making it cost-effective for covering large floor areas. Produces relatively light concrete floor with broad application range. Manufactured in thicknesses 185, 265, 320, 400, and 420mm with spans up to approximately 18m. Common uses include residential, offices, parking decks, etc.
• Pålar (Piles) Piles offered through one of the main owners, Lujabetoni, which has large capacity and efficient production. Competitive pricing on the Swedish market from Stockholm up to Kiruna in the north, especially in projects with volumes from approximately 4km total column length and above.
• Övrigt (Custom and Standard Elements) Other types of elements including standard elements such as retaining walls or completely custom elements tailored to customer needs.

Quantifiable outcome

• Production capacity of up to 70,000 tonnes of finished concrete elements per year at optimal capacity utilisation
• +2 more outcomes

Named customers17 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Norsjö Betong ABcoreStrategic or Co-development Partner · 25 June 2024Prefabmästarna acquired 100% of the shares in Norsjö Betong AB on 25 June 2024. The acquisition expands Prefabmästarna's capacity ahead of upcoming industrial investments in northern Sweden. Norsjö Betong is a long-established family business founded in the 1940s that has delivered high-quality products for many years. Norsjö Betong will initially continue as an independent company but will eventually be merged into Prefabmästarna. Former owner Magnus Stenmark has remained with the business as site manager (Platschef) in Norsjö. Norsjö Betong had revenue of approximately 65 MSEK in 2023.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Lujabetoni: Finnish precast concrete manufacturer and one of Prefabmästarna's two parent owners since 2012; comparable in product range and operates in the adjacent Finnish market, sharing technical and commercial practices.
• Spenncon: Norwegian producer of prefabricated concrete elements (beams, columns, hollow-core slabs, walls) for buildings and infrastructure; regional peer with overlapping product portfolio and customer segments.
• Abetong: Swedish prefabricated concrete element manufacturer (part of Heidelberg Materials) producing beams, columns, hollow-core slabs, walls and balconies — directly overlapping Prefabmästarna's structural frame offering.
• EXPAN: Swedish manufacturer of prefabricated concrete elements with a focus on structural frames for housing, offices and industry; directly comparable product mix and northern Sweden delivery footprint.
• Contiga: Nordic manufacturer of precast concrete structures for buildings and infrastructure, including hollow-core slabs, walls and beams. Comparable in technology, customer base and Sweden/Norway market exposure.
• Strängbetong: Swedish manufacturer of prefabricated concrete elements for residential, commercial and industrial construction. Directly comparable to Prefabmästarna in product range (walls, slabs, beams, columns) and Swedish market focus.

Broad incumbents

• Peab: Major Swedish construction contractor and concrete element producer through Peab Bostad and its own element manufacturing; both a large customer of Prefabmästarna and a partial competitor in structural frames.
• Skanska: Leading Swedish construction contractor with in-house concrete element capabilities; large repeat customer of Prefabmästarna and a broad incumbent that could substitute its own capacity on certain projects.
• Cementa (Heidelberg Materials): Sweden's primary cement producer and part of Heidelberg Materials; upstream incumbent supplying the binder used in Prefabmästarna's products and a strategic counterparty in the Swedish concrete value chain.

Regional players

• Thomas Concrete Group: Swedish-based concrete producer with ready-mix and prefabricated element operations; serves overlapping construction customers and is a regional alternative supplier of concrete elements in Sweden.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/prefabmastarna
• LinkedInlinkedin.com/company/prefabm%C3%A4starna/?viewAsMember=true
• Instagraminstagram.com/prefabmastarna

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 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 Prefabmästarna