Aru Grupp
Aru Grupp is an Estonian wood manufacturer (founded 1993, ~165 employees) producing custom wooden windows, doors, staircases under the Stair24 brand, and prefabricated timber houses from four factories in Hulja, exporting to eight European and Asian markets through distributor partners.
- Company typePrivate
- Founded1993
- HeadquartersHulja, Estonia
- Headcount1–10
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Aru Grupp does
Aru Grupp AS is an Estonian wood-processing manufacturer founded in 1993 and headquartered in Hulja, Kadrina Vald, with approximately 165 employees operating across four co-located factories: a window-door factory, stair factory, house factory, and glued timber components factory. The company produces a diversified portfolio of timber-based building products including wood and wood-aluminum windows, exterior and interior doors (including fire-rated EI30 and Yale Durus smart-lock models), custom staircases (sold under the Stair24 sub-brand with online configuration), and prefabricated timber houses (single-family, modular, row houses, garden sheds). Underlying technology centers on engineered timber processing with ISO 9001:2015 quality management, FSC chain-of-custody certification for sustainable sourcing, IPPC EE-161 HT phytosanitary certification for export, and proprietary product lines such as the AruAL SlimLine wood-aluminum window system and Aru SV3.2 historic renovation windows.
The business model is project-based custom manufacturing with quote-driven pricing. Aru Grupp serves three primary customer segments: residential homeowners and developers in Estonia (via direct sales offices and showrooms in Tallinn and Lääne-Viru County); building companies and developers needing custom openings and modular buildings (B2B direct); and international distributors in eight export markets (Netherlands, Denmark, Norway, Ireland, Sweden, Japan, Iceland, Germany, Finland). Distribution is hybrid: domestic direct sales for B2B/B2C customers, channel partners (professional distributors) for export markets, and a direct-to-consumer e-commerce platform at stair24.com for stair sales. Marketing relies on the corporate website, Facebook and Instagram organic content, and trade show participation at Eesti Ehitab and Nordbygg. The company has received non-dilutive EU funding from the European Regional Development Fund (EUR 484,951.49 in 2017-2022) and the European Cyber Competence Centre (EUR 42,066.25 across 2023-2025) for development and cybersecurity initiatives, and reports volume growth exceeding 10% in the most recent year.
Aru Grupp firmographics
Firmographics- Name
- Aru Grupp
- Legal name
- Aru Grupp AS
- Website
- https://arugrupp.ee
- Company type
- Private
- Founded year
- 1993
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Aru Grupp is an Estonian wood manufacturer (founded 1993, ~165 employees) producing custom wooden windows, doors, staircases under the Stair24 brand, and prefabricated timber houses from four factories in Hulja, exporting to eight European and Asian markets through distributor partners.
- Ownership category
- akta.pro rank
Aru Grupp industry classification
Industry- Product category
- Building Components Manufacturing (Wooden Windows, Doors, Stairs, and Prefabricated Houses)
- NAICS
- Wood Window and Door Manufacturing (321911), Prefabricated Wood Building Manufacturing (321992), Custom Architectural Woodwork and Millwork Manufacturing (337212)
- SIC
- Lumber & Wood Products (No Furniture) (2400), Prefabricated Wood Bldgs & Components (2452)
- akta.pro primary industry
- Custom Window & Door Fabrication & Replacement (HSAPAJAI)
- akta.pro secondary industries
- Exterior Doors (IMADAIAA), Interior Doors (IMADAIAB), Stair Parts, Railings & Architectural Woodwork (HSAPAIAJ)
Keywords
Where Aru Grupp is headquartered
LocationHeadquarters
- HQ city
- Hulja
- HQ country
- Estonia
- HQ region
- Europe
Offices3 records
Markets served
Aru Grupp business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Window Manufacturing and Sales: Production and sale of wooden and wood-aluminum windows including inward-opening, outward-opening, double-frame, English sash, and fire-rated windows
- Door Manufacturing and Sales: Production and sale of exterior doors (flush doors, frame doors, wood-aluminum doors, fire doors), interior doors (panel doors, solid doors, pocket doors), apartment exterior doors, and balcony/terrace doors
- Stair Manufacturing and Sales: Custom wooden and wood-aluminum stair production sold through Stair24 brand and e-commerce platform
- Prefabricated House Manufacturing and Sales: Production and sale of prefabricated houses including single-family homes, semi-detached houses, timber frame houses, modular houses, and garden sheds
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom windows, doors, stairs, and houses - quote-based pricing |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Aru Grupp product offering
Product offeringCore offering
Aru Grupp manufactures wooden and wood-aluminum windows, exterior and interior doors, custom wooden stairs (sold under the Stair24 sub-brand and online platform), and prefabricated timber houses (single-family, semi-detached, modular, garden sheds, row houses). Production is carried out across four factories at the Hulja complex in Estonia, with sales conducted through domestic showrooms, international distributors, and the Stair24 e-commerce channel.
Product overview
Aru Grupp is a diversified Estonian wood manufacturing company producing four main product lines: windows (wood and wood-aluminum), doors (exterior, interior, apartment, and terrace doors), stairs under the Stair24 sub-brand, and prefabricated/modular houses. The portfolio includes branded product lines such as AruAL SlimLine (premium wood-aluminum windows), Aru NORDIC (premium exterior doors), Aru ID (interior doors), and Aru patio (terrace doors). Stair24 operates as a distinct sub-brand with an online configuration platform. All products emphasize timber construction with energy efficiency, quality materials, and customizable design solutions.
Differentiator
Problem solved
Functional benefit
Brands
- Stair24: Staircase brand launched by Aru Grupp AS in 2019, featuring wooden and wood-aluminium stairs sold through a dedicated e-commerce platform.
Products and services
- Wooden Windows Custom-manufactured wooden windows including inward-opening, outward-opening, two-frame in-out, English sash vertical sliding, and EI30 fire-rated variants. Produced for residential and commercial buildings in Estonia and export markets.
- Wood-Aluminum Windows (Aru SlimLine / AruAL) Wood-aluminum composite windows combining interior wood warmth with exterior aluminum cladding for durability. Includes the SlimLine product line with slim profiles and high energy efficiency.
- Exterior Doors Custom exterior doors including flush doors, wood-frame doors, wood-aluminum frame doors, board-covered doors, Aru NORDIC premium series (ED 90, ED Flush 90), and fire-rated variants for residential and apartment buildings.
- Interior Doors (Aru ID Series) Interior door series including panel doors, flush doors, sliding/pocket doors, and the Aru ID line (Opera, Kalwi, Classic, Modern, Plain profiles) in solid wood with various finishes.
- Apartment Exterior Doors Exterior doors specifically designed for apartment buildings, including flush and panel options with EI30 fire-rated variants.
- Balcony and Terrace Doors Balcony doors, parallel sliding terrace doors, tilt-sliding terrace doors, and folding terrace doors including Aru patio FOLD (up to 6m wide) and Aru patio LINE tilt-sliding with three-layer laminated wood in pine, oak, and meranti.
- Stair24 Stairs Custom wooden and wood-aluminum stairs sold under the Stair24 sub-brand, including I-shaped, L-shaped, U-shaped, design stairs, spiral stairs, laminated stair steps, and staircase cabinet doors. Configurable and orderable online via stair24.com.
- Prefabricated Houses Modern, energy-efficient prefabricated timber-frame houses built to customer architectural solutions for quick on-site construction.
- Modular Houses Modular buildings based on timber frames, largely factory-completed for consistent quality and efficient on-site assembly.
- Timber Houses and Row Houses Log and timber houses built from individual projects using traditional timber construction methods, plus attached row houses for housing developments.
- Garden Sheds (Lehtlad) Garden storage buildings made from high-quality coniferous or deciduous wood with various impregnation and surface protection options.
- Aru SV3.2 Historic Modernised In-Out Windows Traditional double-frame window with 3-layer glass package in inner frame, suitable for historical building renovation and heritage applications.
- Aru Firestop Fire-Rated Windows and Doors EI30 certified fire-rated windows and doors (including Aru Firestop 92 EI30 and Aru ED Firestop EX EI30) for fire safety compliance in buildings.
Quantifiable outcome
- Volume growth exceeded 10% last year
Companies that use Aru Grupp
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Aru Grupp technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Aru Grupp partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- International Distributors (Netherlands, Denmark, Norway, Ireland, Sweden, Japan, Iceland, Germany, Finland)coreProfessional distributors organizing sales in 8 countries. Export organized through these partners for windows, doors, stairs, and houses
Scale indicators6 records
Recent moves6 records
Expansion highlights5 records
Aru Grupp competitors and assessment
Company assessmentDirect peers
- Lappli: Finnish log home manufacturer producing prefabricated timber homes for European and international markets. Comparable to Aru Grupp's timber-frame, log, and modular house product lines in both product and customer segment.
- Honka: Finnish manufacturer of log and timber-frame prefabricated homes. Closely comparable to Aru Grupp's prefab house and timber-frame house product lines, with similar target customer (private residential buyers) and similar European export approach.
- Baufritz: German manufacturer of prefabricated timber-frame homes with strong sustainability credentials. Comparable to Aru Grupp's prefab house product line on technology (engineered timber), customer (private residential), and sustainability positioning.
- Dolle A/S: Danish staircase manufacturer offering modular and custom stairs across Europe via retail and distribution channels. Highly comparable to Aru Grupp's Stair24 brand in product, target market, and channel approach.
- Internorm: Austrian premium manufacturer of wood-aluminum and uPVC windows and doors. Highly comparable to Aru Grupp's wood-aluminum window and door lines across European markets, with overlapping target customers in residential new-build and renovation.
Regional players
- Thermory: Estonian thermo-treated wood products manufacturer with international distribution across Europe and beyond. Comparable as an Estonian-based wood products manufacturer exporting across multiple countries with sustainability-led branding.
- Pihla (Inwido): Finnish wood window and door brand owned by Inwido, one of Europe's largest window groups. Directly comparable in product (wood windows/doors) and regional footprint, though operating at significantly larger scale than Aru Grupp.
Broad incumbents
- Stora Enso: Finnish-Swedish forest products major with a building solutions division covering mass timber, wood components, and window-related products. Comparable as a Nordic wood building products incumbent with substantially larger scale and broader product portfolio.
- Jeld-Wen: Global manufacturer of interior and exterior doors, windows, and related building components. Comparable as a multi-category wood-based doors and windows manufacturer, though operating at far greater scale across residential and commercial segments.
- Velux: Danish global leader in roof windows and skylights. While specialized in roof windows rather than facade windows, Velux is a relevant reference point for premium wood-based window manufacturing, European brand strength, and renovation channel access.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Aru Grupp social profiles
Digital presenceAru Grupp compliance and trust
Trust signalCompliance4 records
Aru Grupp financial estimates
Financial estimateRevenue estimate
Valuation estimate
Aru Grupp leadership team
Management profileNumber of profiles
Aru Grupp funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Aru Grupp 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 Aru Grupp
What does Aru Grupp do?
Aru Grupp manufactures wooden and wood-aluminum windows, exterior and interior doors, custom wooden stairs (sold under the Stair24 sub-brand and online platform), and prefabricated timber houses (single-family, semi-detached, modular, garden sheds, row houses). Production is carried out across four factories at the Hulja complex in Estonia, with sales conducted through domestic showrooms, international distributors, and the Stair24 e-commerce channel.
Is Aru Grupp a public or private company?
Aru Grupp is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Aru Grupp founded?
Aru Grupp was founded in 1993. It employs 1 to 10 people.
Where is Aru Grupp based?
Aru Grupp is headquartered in Hulja, Estonia, in the Europe region.
How does Aru Grupp make money?
Four revenue lines are on record. Window Manufacturing and Sales are the primary driver. The others are door Manufacturing and Sales, stair Manufacturing and Sales and prefabricated House Manufacturing and Sales.
Who are Aru Grupp's main competitors?
Direct peers on record are Lappli, Honka, Baufritz, Dolle A/S and Internorm. Regional players are Thermory and Pihla (Inwido). Broad incumbents are Stora Enso, Jeld-Wen and Velux.
Does Aru Grupp have an API?
No public API is recorded for Aru Grupp.
What industry is Aru Grupp in?
Aru Grupp's product category is Building Components Manufacturing (Wooden Windows, Doors, Stairs, and Prefabricated Houses). Its primary akta.pro industry code is HSAPAJAI, Custom Window & Door Fabrication & Replacement, with a secondary code of IMADAIAA, Exterior Doors. Its NAICS code is 321911 and its SIC code is 2400.