What KENNGOTT-TREPPEN does

KENNGOTT-TREPPEN is a fourth-generation, family-owned German manufacturer of custom interior staircases, tracing its origins to a 1895 stonemason and quarry business in Zaberfeld and now headquartered at a Sinsheim (Baden-Württemberg) service center operated by Longlife-Treppen GmbH under the legal entity Bluestar GmbH. The company produces bespoke interior staircases in solid wood, stone, metal, glass, and a proprietary Longlife HPL-composite material, with CNC-controlled robotic and CAD-driven production. Its technical moat rests on the patented Longlife stair-tread material (R9 slip-resistance certified, available in nine design variants), the 1957-patented freestanding WF2 Bolzentreppe cantilever system, and five European Technical Assessments (ETAs) covering the major product lines for CE marking. The portfolio spans 10,000+ configurations, anchored by the Red Dot Award-winning 1m² compact staircase, the freestanding WF2, HPL stringer, cantilever, hanging, fold, double-stringer, and space-saving systems, plus railings (TERZO-Quadrat Q3), LED Stair-Light accessories, and renovation services.

KENNGOTT operates a pure B2B2C channel model: it does not sell direct to end customers. Distribution runs exclusively through approximately 80 certified Handwerkspartner (craft trade businesses) across Germany, who handle consultation, on-site measurement, quotation, and professional installation. A 500 m² factory showroom at Sinsheim (by appointment) and a 3D online configurator with DWG/DXF export for architects serve as top- and mid-funnel tools, while a dedicated architect portal, BIM-compatible planning aids, and a web-based planning app support the secondary architect/planner segment. Pricing is per project and not publicly disclosed.

The company is led by Jörg Kenngott, Geschäftsführer representing the fourth generation of family ownership. Strategic positioning emphasizes long-term brand equity (Marke des Jahrhunderts 2022, Architects' Darling Gold, consecutive Top Marke Haus & Wohnen wins 2018–2022, FOCUS MONEY 2024), certified safety and sustainability, and a partnership with HIRO LIFT for pre-engineered stairlift compatibility — extending reach into the aging-in-place segment. Geographic reach is single-country (Germany) with no documented international footprint in the available data, and revenue is not publicly disclosed.

Name

KENNGOTT-TREPPEN

Legal name

Bluestar GmbH

Website

https://kenngott.de

Company type

Private

Founded year

1895

Operating status

Operating

Headcount range

51–100 employees

Short description

German family-owned staircase manufacturer (founded 1895) producing custom interior staircases in wood, stone, metal, glass, and patented Longlife HPL composite. Serves private homeowners and architects exclusively through 80 certified partner businesses across Germany.

Ownership category

akta.pro rank

Product category

Custom Staircase Manufacturing

NAICS

Custom Architectural Woodwork and Millwork Manufacturing (337212)

SIC

Miscellaneous Furniture & Fixtures (2590)

akta.pro primary industry

Staircase & Railing Remodeling (Interior) (HSAPAFAF)

akta.pro secondary industries

Stair Parts, Railings & Architectural Woodwork (HSAPAIAJ), Stair, Railing & Banister Repair (HSAGABAE), Luxury Whole-Home Renovation (High-End Finishes & Custom Build) (HSAPAEAI), Trim, Baseboards, Crown Molding & Finish Carpentry (HSAPAFAD)

Keywords

• Custom staircase manufacturing
• Interior staircase systems
• Staircase renovation services
• Longlife stair material
• Certified staircase installation

Headquarters

HQ city

Ludwigsfelde

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom staircase manufacturing and installation: KENNGOTT designs, manufactures, and installs bespoke interior staircases for new builds and renovations. Products are sold exclusively through a network of 80 certified partner businesses (craft trades) who handle on-site consultation, measurement, sales, and installation. The company does not sell direct to end customers.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

KENNGOTT-TREPPEN designs, manufactures, and distributes custom-made interior staircases for residential new builds and renovations across Germany, offering wood, Longlife HPL-composite, stone, metal, and glass staircase systems manufactured to order at the Sinsheim production facility. The portfolio spans freestanding, space-saving, stringer, cantilever, hanging, and solid-wood staircase types, complemented by proprietary step materials, railing systems, safety packages, LED lighting, and a 3D online configurator. All products are sold exclusively through a network of 80 certified partner businesses who provide consultation, measurement, and professional installation.

Product overview

KENNGOTT-TREPPEN is a leading German staircase manufacturer offering a comprehensive portfolio of staircase systems for new construction and renovation. The product range includes core staircase types (freestanding WF2, space-saving 1m², fold, double-stringer, stringer, HPL, cantilever, hanging, wood, stone, metal, glass), complemented by step materials (proprietary Longlife with European patent, solid wood), railing systems (TERZO-Quadrat Q3), safety features (R9 slip resistance, LED lighting), and digital tools (3D configurator). Services include professional staircase renovation and step replacement. A partnership with HIRO LIFT offers stairlift retrofits for mobility accessibility. With over 125 years of experience and central production in Baden-Württemberg, KENNGOTT serves customers through 80 certified partner businesses across Germany.

Differentiator

Problem solved

Functional benefit

Brands

• Longlife-Treppen: Proprietary patented step material with slip-resistant R9-certified surface; available in 9 designs; high resistance to stains, abrasion, and pressure; European patent.
• Longlife-Stufen
• KENNGOTT-TREPPE (WF2)
• 1m²-Treppe
• HPL Wangentreppe

Products and services

• KENNGOTT-TREPPE (WF2) — Freestanding Bolt Staircase Patented freestanding/bolt staircase with steel bolts anchoring treads to the wall, available in solid wood and Longlife HPL-composite materials. ETA-certified for structural safety; available in solid wood and Longlife materials.
• KENNGOTT 1m²-Treppen (Space-Saving Staircase) Compact staircase with footprint from 1 m² up to 1.40 x 1.40 m designed for tight spaces. Red Dot Design Award winner combining safety and space efficiency for tight spatial requirements in residential properties.
• Faltwerktreppe (Fold Staircase) Fold staircase design featuring folded steel side panels supporting the steps, offering a modern architectural aesthetic.
• Zweiholmtreppe (Double-Stringer Staircase) Double-stringer staircase with two parallel structural beams supporting the steps from both sides.
• Wangentreppen (Stringer Staircases) Stringer staircases with side beams (Wangen) supporting the steps. Available in wood, metal, and HPL materials.
• HPL-Treppe (HPL Stringer Staircase) High Pressure Laminate staircase with slim side panels (Schichtstoffplatten) in anthracite and white; lightweight alternative to steel stringer with ETA certification.
• Geländertragende Treppen / Hängetreppen (Balustrade-Supported / Hanging Staircases) Balustrade-supported or hanging staircase where the load-bearing handrail supports the steps; ETA-certified for structural safety.
• Kragarmtreppe (Cantilever Staircase) Cantilever staircase with steps extending from a wall-mounted support arm; maximum step width up to 1 meter; minimalist floating design with ETA certification.
• Raumspartreppe (Space-Saving Staircase Designs) Space-saving staircase designs for tight spaces, including spiral and compact configurations.
• Holztreppen / Massivholztreppen (Solid Wood Staircases) Solid wood staircases in oak, beech, ash, walnut, pine, and maple with natural appearance and design flexibility.
• Steintreppen (Stone Staircases) Natural stone and cast stone staircases providing elegant, durable, long-lasting solutions with ETA certification.
• Metalltreppen (Metal / Steel Staircases) Steel and metal staircases offering industrial aesthetic and structural versatility; usable as construction-site temporary stairs.
• Glastreppen (Glass Staircases) Glass staircases featuring transparent glass elements for a modern, airy appearance.
• Longlife-Treppen (Longlife Staircases) Staircases featuring the proprietary European-patent-protected Longlife step material with R9 slip-resistant certified surface, available in 9 design variants including wood and stone looks, with high resistance to stains, abrasion, and household chemicals.
• Longlife Stufenmaterial (Proprietary Step Material) Proprietary HPL-composite step material with European patent; R9 slip-resistant certified surface; available in 9 price-equal designs (Oak variants, Pine Nordicline, Ash, Betonline concrete look, Whiteline, Schieferline slate look); standard and 39mm slim thickness options.
• Treppenrenovierung (Staircase Renovation Service) Staircase renovation service covering full replacement or step-only replacement (Stufentausch), concrete-staircase cladding, and modernization for design and safety upgrades; installation by certified Handwerkspartner typically within one day per floor.
• HIRO Treppenlift (Stairlift via HIRO LIFT Partnership) Stairlift system offered through co-development partnership with HIRO LIFT, retrofittable to existing KENNGOTT staircases without drilling into steps, using a patented traction drive for curved stairs; Made in Germany.

Quantifiable outcome

• Rutschhemmende Oberfläche R9 zertifiziert — Sturzrisiko deutlich reduziert gegenüber lackierten, glatten Oberflächen (laut IFA Institut für Arbeitsschutz der DGUV)
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• HIRO LIFTcoreStrategic or Co-development PartnerKENNGOTT and HIRO LIFT have a co-development partnership for stair lifts. HIRO LIFT's stair lift systems are pre-engineered to be compatible with existing KENNGOTT staircases, including models installed decades ago. The partnership eliminates the need to drill into staircase steps, preserving the staircase's appearance and value. HIRO LIFT uses a patented traction drive (two-tube system) suitable for curved stairs with tight radii, and its lift components can be removed without leaving holes when no longer needed.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Others

• STEICO SE: European manufacturer of engineered wood products (LVL, I-joists, insulation) used in building structures including staircase components. Adjacent supplier-side peer providing input materials used by staircase fabricators across Europe.
• HIRO LIFT: German manufacturer of stair lifts with a formal co-development partnership with KENNGOTT for retrofit-compatible lift systems. Comparable as a strategic ecosystem partner addressing accessibility retrofit on the existing KENNGOTT installed base.

Regional players

• Balteschwiler AG: Swiss manufacturer of custom interior staircases and timber construction elements, primarily serving Switzerland and surrounding DACH markets. Comparable in craftsmanship and material range but operating in a different national market.
• Treppenbau Reinhardt: Mid-sized German regional staircase manufacturer focused on southern Germany, offering custom wood and metal staircases. Comparable in being a project-based custom manufacturer but with a more limited geographic and partner footprint than KENNGOTT.
• Minka Holz- und Treppenbau GmbH: Austrian custom staircase and interior joinery manufacturer offering full staircase systems and renovation services in the DACH region. Comparable in custom-built product positioning and DACH-region customer base.

Direct peers

• Treppenmeister: German cooperative network of staircase manufacturers offering custom-built interior staircases through regional partner businesses. Closely mirrors KENNGOTT's partner-driven distribution model and product portfolio of wood, metal, and glass stair systems.
• Fontanot: Italian-headquartered staircase manufacturer with strong German distribution, known for space-saving and modular stair systems. Overlaps with KENNGOTT's Raumspartreppe / 1m² range and competes in the renovation and new-build segments.
• Dolle GmbH: German-Danish staircase manufacturer offering interior stair systems, space-saving stairs, and stair components to DIY and trade channels across Europe. Directly competes with KENNGOTT in custom and modular interior staircases for residential renovation and new construction.
• Schmidt Treppen: German custom staircase manufacturer producing bespoke interior staircases in wood, steel, glass, and stone for residential and commercial projects. Comparable in product mix, customization depth, and reliance on regional installation partners.
• Siebert Treppen: German bespoke staircase maker specializing in custom wood, steel, and glass stairs for residential projects. Comparable in being a mid-sized German manufacturer serving private homeowners through project-based specification and installation.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCi-X4CUBKEi23ZCafYfpBag
• Facebookfacebook.com/kenngotttreppen
• Instagraminstagram.com/kenngott.treppen
• Pinterestpinterest.de/kenngotttreppen
• LinkedInlinkedin.com/company/kenngott-treppen-holz-metall-stein-service-zentrale-longlife-treppen-gmbh

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 KENNGOTT-TREPPEN