Seibel und Weyer

What Seibel und Weyer does

Seibel und Weyer GmbH is a family-owned German craft and construction company headquartered in Bottrop, founded in 1968 by Lothar Seibel and Manfred Weyer. It operates three integrated service lines: interior fit-out (Innenausbau) under the 'Büro-Erfinder' and 'Gastro-Könner' brands, certified Schüco aluminium and Schüco-Jansen steel window/door/facade construction under 'Schüco-Profis', and turnkey general contractor delivery. The company employs 247 people plus 35 apprentices across five trades, supported by CNC-controlled wood and metal production machinery, 3D construction programs, and Schücal+/Logikal CAD software. Its main Bottrop headquarters (Weusterstrasse 33) houses administration and wood workshop; a separate Weusterstrasse 13 facility holds 3,000 sqm of metal production with 70 employees.

The company serves enterprise clients across aviation (Deutsche Lufthansa worldwide framework agreement, Flughafen Düsseldorf/Luxembourg), hospitality (Radisson Blu, Big Mamma Group, Havens Living, Jamie Oliver/SSP, The Alchemist), corporate real estate (Henkel, BCG, GEA AG, Xella International, Bayer AG), banking (Sparkasse Gladbeck since 1968, Volksbank Ruhr Mitte, Kreissparkasse Schlüchtern), retail (Intersnack, John & Audrey, Siebter Himmel), healthcare (Helix Hub Berlin, Radiologie Praxis Düsseldorf), and public sector (Olympiastützpunkt Dortmund). Approximately 428 projects are delivered annually through direct sales, architect and interior designer referrals, and long-standing repeat relationships, with international projects spanning Austria, Luxembourg, Sweden, and Saudi Arabia.

The business model is project-based with custom quotations and no standard pricing. Revenue derives from one-time interior fit-out contracts, metal construction projects, and (implicitly) apprenticeship subsidies under the German dual vocational training system. Distribution is direct enterprise sales only — no intermediaries, no e-commerce. The company is currently led by Managing Directors Christian Conradi and Martin Köster, who completed a generational ownership transition from Jens Weyer and Achim Heilmann in 2023, with Kai-Uwe Schröder heading the metal construction division as Prokurist since 2022. Sustainability investments include one of Bottrop's largest rooftop solar installations (producing ~one-third of energy needs), 100% green electricity procurement, LED lighting with motion sensors, and 50 employee job bikes including e-bikes.

Name

Seibel und Weyer

Legal name

Seibel und Weyer GmbH

Website

https://seibelundweyer.de

Company type

Private

Founded year

1968

Operating status

Operating

Headcount range

101–250 employees

Short description

Seibel und Weyer is a German family-owned craft company founded in 1968, providing integrated interior fit-out, Schüco-certified aluminium and steel metal construction, and turnkey general contractor services for enterprise clients across gastronomy, retail, banking, aviation, and corporate real estate sectors in Germany and Europe.

Ownership category

akta.pro rank

Product category

Commercial Interior Construction & Fit-Out

NAICS

Metal Window and Door Manufacturing (332321), Fabricated Structural Metal Manufacturing (332312), Ornamental and Architectural Metal Products Manufacturing (33232), Plate Work Manufacturing (332313)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442), Construction - Special Trade Contractors (1700), Fabricated Structural Metal Products (3440)

akta.pro primary industry

Joinery, Millwork & Casework Installation (Cabinetry, Built-Ins) (IMAFANAJ)

Keywords

• Interior fit-out services
• Metal construction fabrication
• General contractor construction
• Window door facade systems
• Commercial interior buildout

Headquarters

HQ city

Bottrop

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Interior Construction (Innenausbau): Custom interior fit-out for commercial clients including offices, hotels, restaurants, healthcare, and retail. Projects range from bespoke furniture to complete turnkey interiors, delivered as general contractor or trade contractor. Revenue is project-based, one-time per contract.
2. Metal Construction (Metallbau): Design and production of aluminium and steel windows, doors, facades, and structural metalwork under Schüco partnership. Includes fire protection elements, steel constructions, and custom metal features. Revenue is project-based, with ongoing repeat orders from long-term clients.
3. Apprenticeship / Vocational Training: Company runs registered vocational training programs (dual system) across five trades. Revenue derived from government apprenticeship subsidies and the long-term value of training its own skilled workforce.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels3 records

Core offering

Seibel und Weyer is a German general contractor that plans and executes complex interior construction (Innenausbau) and metal construction (Metallbau) projects for enterprise clients across gastronomy, retail, offices, banking, healthcare, and aviation. It combines in-house woodworking and Schüco-certified metalworking under one roof to deliver turnkey fit-outs from design participation through manufacturing and on-site execution.

Product overview

Seibel und Weyer is a medium-sized craft and construction company offering integrated interior construction, metal construction, and facade services. The company operates three main service divisions: Büro-Erfinder (office design and working environments), Schüco-Profis (metal construction with aluminum and steel window/door/facade systems), and Gastro-Könner (gastronomy interior construction). The company serves diverse sectors including hotels, banks, airports, healthcare, retail, and offices, functioning as general contractor for complete project execution. With approximately 247 employees, the company handles projects ranging from individual fit-outs to large-scale turnkey constructions across Germany and Europe.

Differentiator

Problem solved

Functional benefit

Products and services

• Büro-Erfinder (Office Design) Planning and execution of modern working environments and office landscapes for enterprise clients, integrating interior architecture, acoustic optimization, technology integration, and flexible retreat zones. Targeted at companies undertaking office new builds, renovations, or refurbishments.
• Schüco-Profis (Metal Construction) Design, fabrication, and installation of Schüco aluminium and Schüco-Jansen steel windows, doors, facades, fire protection elements, and structural metalwork. Positions Seibel und Weyer as one of the largest Schüco partners in the Ruhr area, serving airports, banks, public buildings, and commercial properties.
• Gastro-Könner (Gastronomy Construction) Complete interior construction for gastronomy establishments, including restaurants, hotel restaurants, bars, and airport F&B concepts. Delivered as trade contractor or general contractor with fast-track scheduling to opening deadlines, integrating technical requirements (hygiene, fire safety) with high-design themed interiors.
• General Contractor (GU) Turnkey Delivery Full general contractor delivery of interior construction projects, managing all trades from concept through turnkey handover. Used for complex projects such as Lufthansa Frankfurt Lounge (completed in four weeks), The Alchemist Berlin, Big Mamma restaurants, and Hotel Havens Living micro-apartments.

Quantifiable outcome

• Projects executed internationally across Germany, Europe (Austria, Luxembourg), and as far as Sweden and Saudi Arabia
• +4 more outcomes

Named customers26 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• SchücocoreTechnology or IntegrationLongstanding partnership with Schüco International KG for aluminium windows, doors, fire protection, and facade systems. Over two decades, the partnership has deepened to become one of the largest Schüco collaborations in the Ruhr area. The partnership expanded in 2020 to include Schüco-Jansen steel products, enabling Seibel und Weyer to offer a complete range of metal window, door, and facade solutions. Seibel und Weyer is a Schüco certified partner with dedicated production facilities for Schüco systems.
• Schüco-JansencoreTechnology or IntegrationExtension of the Schüco partnership to include Jansen steel products for doors and facades, starting in 2020. First major reference project was the Olympiastützpunkt Dortmund Helmut Körnig Halle steel facade.
• SSP (Specialised Services and Products for Transport)coreStrategic or Co-development PartnerSSP is the food travel retail operator that holds the license for Jamie Oliver restaurant concepts at airports. SSP has repeatedly commissioned Seibel und Weyer for Jamie Oliver restaurant fit-outs, including at Vienna Airport Schwechat, relying on the company's track record and general contractor capabilities.
• soda groupcoreStrategic or Co-development PartnerGastronomy concept planners who regularly collaborate with Seibel und Weyer on restaurant and canteen fit-out projects. Notable projects include the Henkel canteen in Düsseldorf with 'Taste of Asia', 'Little Italy', and 'Soul Food' themes, and the Pit Stop prototype workshop in Essen.
• UK2 ArchitektenminorStrategic or Co-development PartnerArchitecture firm for hotel projects including the Radisson Blu Senator lobby redesign in Lübeck and the Restaurant Nautilo in Lübeck. Seibel und Weyer collaborated on both design and execution.
• two space (Claudia de Bruyn)coreStrategic or Co-development PartnerInterior architecture practice led by Claudia de Bruyn that repeatedly recommends Seibel und Weyer to its clients for their ability to execute complex, creative designs. Projects include the Radiologie Praxis Düsseldorf, Xella International, human unlimited, and GEA AG.
• bkp (Architektur Innenarchitektur)minorStrategic or Co-development PartnerArchitecture and interior design firm (bkp) that collaborates with Seibel und Weyer on projects including Intersnack Düsseldorf and EGR Parkhaus Bochum.
• t | b ArchitektenminorStrategic or Co-development PartnerArchitecture firm responsible for the Olympiastützpunkt Dortmund extension project, for which Seibel und Weyer delivered the aluminium and steel facade systems.
• Deutsche Lufthansa (framework agreement)coreChannel Partner/ Reseller/ DistributorSeibel und Weyer operates under a worldwide framework agreement with Deutsche Lufthansa for interior fit-out and metal construction work at Lufthansa facilities at German and international airports. Projects include Düsseldorf Airport busgates, Frankfurt Airport lounge Area A, and Berlin Brandenburg Airport lounge.
• Kitzig Interior Design GmbHminorStrategic or Co-development PartnerInterior design firm responsible for the Lufthansa Lounge Area A redesign at Frankfurt Airport, where Seibel und Weyer served as general contractor for the turnkey delivery.
• Archwerk GeneralplanerminorStrategic or Co-development PartnerGeneral planning firm for the EGR Parkhaus Bochum facade renovation, where Seibel und Weyer supplied and installed Schüco fire protection doors, facades, and steel constructions.
• brandherm + krumrey innenarchitekturminorStrategic or Co-development PartnerInterior design practice for the Bayer Seminarhotel project in Wermelskirchen and the HVNS 'Wohnen auf Zeit' project in Hamburg.

Scale indicators8 records

Recent moves13 records

Expansion highlights5 records

Direct peers

• Lindner Group: Germany-based interior fit-out and building services contractor offering integrated interior fit-out, partitions, ceilings, and turnkey solutions for offices, hotels, and airports — directly comparable to Seibel und Weyer across project type and customer base, but at significantly larger scale.
• heroal: German manufacturer and supplier of aluminium window, door, roller shutter, and sliding systems — directly comparable to Seibel und Weyer's Schüco-partner metal construction division, serving similar facade and window installers and competing for the same downstream projects.
• Reynaers Aluminium: Belgian-headquartered aluminium window, door, and facade systems provider with strong presence in Germany — competes directly with Schüco for installer relationships and end-customer facade projects, making Reynaers a close alternative-system peer to Seibel und Weyer's metal division.
• Warema Renkhoff SE: German manufacturer of sun shading, facade, and window systems with a comparable installer-partner ecosystem — overlapping with Seibel und Weyer in facade-adjacent metalwork and competing for similar commercial building envelope projects.
• WICONA (Norsk Hydro): European aluminium building systems brand supplying windows, doors, and facades to installers and contractors — a direct competitor to Schüco/heroal/Reynaers in the systems that Seibel und Weyer fabricates from, with overlap in commercial building projects.
• Hueck GmbH: German manufacturer of aluminium window, door, and facade systems with comparable installer-partner structure to Schüco — competes directly for installer relationships and end-customer projects in the same German commercial construction market.

Broad incumbents

• Schüco International KG: Seibel und Weyer's exclusive technology partner and the dominant German aluminium/steel systems brand for windows, doors, and facades. Schüco operates as a broad incumbent supplying the entire construction industry, including partners like Seibel und Weyer, and represents both a strategic dependency and a competitive reference point.
• Hörmann Group: Germany's leading door and loading technology manufacturer, with broad commercial presence across building products — overlaps with Seibel und Weyer's metal door and facade scope, but operates at significantly larger scale with a much broader product portfolio.
• Sto SE & Co. KGaA: Listed German building products group specialising in facade systems, renders, and insulation — overlaps with Seibel und Weyer in building envelope and facade installation, but operates as a broad materials and systems incumbent across Europe.

Emerging players

• Solarlux GmbH: German specialist in glass sliding systems, conservatories, and facade solutions — a niche peer to Seibel und Weyer's metal facade work with strong overlap in custom architectural metalwork for high-end residential and commercial projects.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/seibelundweyer.de
• LinkedInlinkedin.com/company/seibel-und-weyer-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Seibel und Weyer