Trenor-Gruppen
Trenor-Gruppen AS is a privately held Norwegian manufacturer of exterior doors, interior doors, windows, and balcony doors, operating through three production units and selling exclusively via a nationwide dealer network to residential, cabin, institutional, and multi-unit building customers.
- Company typePrivate
- Founded1925
- HeadquartersTrondheim, Norway
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Trenor-Gruppen does
Trenor-Gruppen AS is a privately held Norwegian manufacturer and group of three door and window producers (Rana Trevarefabrikk, Bindalsbruket AS, and Johs. Monsen Snekkerfabrikk) headquartered in Trondheim. The group's origins trace to 1925 with the founding of Rana Trevarefabrikk, and it operates as "Norway's only complete door and window manufacturer" (komplett leverandør), spanning exterior doors, interior doors, windows, balcony doors, sliding doors, and specialty products (sauna, cabin, storage, and fire-rated). Core technology centers on wooden door and window manufacturing with vacuum impregnation against fungus and rot, multi-layer insulated glass with argon gas filling exceeding Norwegian building regulation U-values, insurance-approved (FG) locking systems on exterior doors, and factory pre-painting/staining using NCS-S color specifications. A 10-year warranty on dimensional stability is backed by membership in Norsk Dør- og vinduskontroll (NDVK).
The business model is a hardware-sales manufacturer that sells exclusively through a nationwide Norwegian dealer network (forhandlernett), with no direct-to-consumer channel. Pricing is published via downloadable PDF price lists rather than publicly disclosed online. Customer segments include residential homeowners (primary), cabin and holiday home owners, institutional buildings (schools, kindergartens, hotels), and multi-unit residential buildings (apartment blocks). Distribution is supported by a content-marketing website, participation in industry trade shows such as Bygg Reis Deg, and dealer locator functionality. The group has 51-100 employees across three production units, with Rana Trevarefabrikk alone employing 65 people and generating approximately NOK 90 million in annual window revenue.
Trenor-Gruppen firmographics
Firmographics- Name
- Trenor-Gruppen
- Legal name
- Trenor-Gruppen AS
- Website
- https://trenor.no
- Company type
- Private
- Founded year
- 1925
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Trenor-Gruppen AS is a privately held Norwegian manufacturer of exterior doors, interior doors, windows, and balcony doors, operating through three production units and selling exclusively via a nationwide dealer network to residential, cabin, institutional, and multi-unit building customers.
- Ownership category
- akta.pro rank
Trenor-Gruppen industry classification
Industry- Product category
- Wooden Door and Window Manufacturing
- NAICS
- Wood Window and Door Manufacturing (321911)
- akta.pro primary industry
- Exterior Doors (IMADAIAA)
- akta.pro secondary industry
- Interior Doors (IMADAIAB)
Keywords
Where Trenor-Gruppen is headquartered
LocationHeadquarters
- HQ city
- Trondheim
- HQ country
- Norway
- HQ region
- Europe
Offices2 records
Markets served
Trenor-Gruppen business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Door and Window Product Sales: Trenor-Gruppen AS generates revenue through the manufacture and sale of doors and windows to its dealer network across Norway. Products include exterior doors, interior doors, windows, balcony doors, sliding doors, and special-purpose doors (sauna, cabin). Revenue is one-time per transaction, driven by dealer orders.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Door and window products available via PDF price lists |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
Trenor-Gruppen product offering
Product offeringCore offering
Trenor-Gruppen AS is a Norwegian group of three door and window manufacturers (Rana Trevarefabrikk, Bindalsbruket AS, and Johs. Monsen Snekkerfabrikk) producing exterior doors, interior doors, windows, balcony doors, and sliding doors in wood with vacuum impregnation, multi-layer insulated glass, and energy-efficient glazing. Products are sold exclusively through a nationwide Norwegian dealer network to residential homeowners, cabin owners, and institutional buildings.
Product overview
Trenor-Gruppen AS is Norway's complete door and window manufacturer, operating as a group of three companies (Bindalsbruket, Rana Trevarefabrikk, and Johs. Monsen Snekkerfabrikk) with headquarters in Trondheim. The product portfolio centers on two core categories: exterior doors (ytterdører) and interior doors (innerdører) in multiple style lines, alongside windows (vinduer) and balcony doors (balkongdører). Exterior doors include painted decor, teak, painted profiled, and paneled/specialty models (Trend, Triangel, Delta, Fokus, Varians, Karakter, Kontur/Form/Silhuett). Interior doors encompass filling doors in pine/birch/beech, smooth doors, form-pressed, profile-milled, and specialty doors (sauna, compact entry). Windows range from fixed frame, side-hinged, top-hinged, two-way inward-opening, and sideswing/sliding configurations with optional muntins. All products feature vacuum-impregnated wood protection against fungus and rot, with 10-year warranties on dimensional stability. The company sells exclusively through a nationwide dealer network and manufactures in central Norway.
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- 10-year warranty on dimensional stability when recommended installation and maintenance guidelines are followed
- +1 more outcomes
Companies that use Trenor-Gruppen
Customer profileSegments4 records
Ideal customer profiles4 records
Trenor-Gruppen technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Trenor-Gruppen partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered moderate and core.
- Norsk Dør- og vinduskontroll (NDVK)moderateTrenor is a member of Norsk Dør- og vinduskontroll (NDVK), which provides customers with a quality and function guarantee on Trenor products. Membership is a prerequisite for the 10-year warranty on dimensional stability.
- Norske Trevarefabrikkers LandsforbundmoderateTrenor-Gruppen is part of the Norwegian wood products manufacturing industry. Norske Trevarefabrikkers Landsforbund is the national trade association for wood product manufacturers in Norway, with 360 member companies.
- Bindalsbruket AScoreBindalsbruket AS is one of three manufacturing units that make up Trenor-Gruppen AS, alongside Rana Trevarefabrikk and Johs. Monsen Snekkerfabrikk. Svein Ove Risnes serves on the board of Trenor-Gruppen AS as CEO of Bindalsbruket.
- Johs. Monsen SnekkerfabrikkcoreJohs. Monsen Snekkerfabrikk is one of three manufacturing units that make up Trenor-Gruppen AS, alongside Rana Trevarefabrikk and Bindalsbruket.
- Rana TrevarefabrikkcoreRana Trevarefabrikk is one of three manufacturing units that make up Trenor-Gruppen AS. Located in Hemnesberget, Nordland, it was established in 1925 and employs 65 people with annual window sales of approximately NOK 90 million.
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
Trenor-Gruppen competitors and assessment
Company assessmentRegional players
- Rationel Vinduer: Rationel Vinduer is a Danish window and door brand owned by VKR/Dovista, producing energy-efficient wood and wood/aluminum windows. It addresses similar specification and renovation segments as Trenor but in the Danish market.
- Velfac: Velfac is a Danish manufacturer of wood/aluminum composite windows and doors. It competes with Trenor in the energy-efficient and architecturally specified segment but primarily serves markets outside Norway.
Direct peers
- Gilje: Gilje is a Norwegian manufacturer of windows and exterior doors with a similar focus on energy efficiency and climate-suited products. It is one of the most direct domestic competitors to Trenor's wood window and door portfolio.
- Lian Trevarefabrikk: Lian Trevarefabrikk is a Norwegian wood products manufacturer producing interior and exterior doors for the residential market. It directly competes with Trenor's Johs. Monsen and Bindalsbruket units in the door category.
- Nordvestvinduet: Nordvestvinduet is a Norwegian window manufacturer based in Northern Norway, producing wood and wood/aluminum-clad windows for residential construction. It competes head-on with Trenor's Rana Trevarefabrikk window line in the same geographic footprint.
- Hamran Gruppen: Hamran Gruppen is a Norwegian window manufacturer with a multi-unit structure similar to Trenor, producing wood windows for the residential and cabin segments through its own dealer network across Norway.
Broad incumbents
- Dovista: Dovista is a Danish window and door group owning brands such as Velfac, Rationel, and Solid. It is a broad incumbent in the Nordic fenestration market with deeper R&D resources and a wider product portfolio than Trenor.
- Inwido AB: Inwido is the largest Nordic window and door group, listed in Stockholm and operating multiple brands across Scandinavia including in Norway. It competes broadly in the same category but at significantly greater scale and with broader material coverage than Trenor.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Trenor-Gruppen social profiles
Digital presenceTrenor-Gruppen financial estimates
Financial estimateRevenue estimate
Valuation estimate
Trenor-Gruppen leadership team
Management profileNumber of profiles
Profiles1 record
Trenor-Gruppen subsidiaries and ownership
Company hierarchySubsidiaries3 records
Trenor-Gruppen funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Trenor-Gruppen M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Trenor-Gruppen
What does Trenor-Gruppen do?
Trenor-Gruppen AS is a Norwegian group of three door and window manufacturers (Rana Trevarefabrikk, Bindalsbruket AS, and Johs. Monsen Snekkerfabrikk) producing exterior doors, interior doors, windows, balcony doors, and sliding doors in wood with vacuum impregnation, multi-layer insulated glass, and energy-efficient glazing. Products are sold exclusively through a nationwide Norwegian dealer network to residential homeowners, cabin owners, and institutional buildings.
Is Trenor-Gruppen a public or private company?
Trenor-Gruppen is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Trenor-Gruppen founded?
Trenor-Gruppen was founded in 1925. It employs 51 to 100 people.
Where is Trenor-Gruppen based?
Trenor-Gruppen is headquartered in Trondheim, Norway, in the Europe region.
How does Trenor-Gruppen make money?
One revenue line is on record: door and Window Product Sales.
Who are Trenor-Gruppen's main competitors?
Regional players on record are Rationel Vinduer and Velfac. Direct peers are Gilje, Lian Trevarefabrikk, Nordvestvinduet and Hamran Gruppen. Broad incumbents are Dovista and Inwido AB.
Does Trenor-Gruppen have an API?
No public API is recorded for Trenor-Gruppen.
What industry is Trenor-Gruppen in?
Trenor-Gruppen's product category is Wooden Door and Window Manufacturing. Its primary akta.pro industry code is IMADAIAA, Exterior Doors, with a secondary code of IMADAIAB, Interior Doors. Its NAICS code is 321911.