Säbu

What Säbu does

Säbu (legal entity SÄBU Morsbach GmbH) is a fourth-generation, family-owned German manufacturer of prefabricated modular buildings, container systems, and hazardous-material storage solutions. Founded in 1924 in Morsbach (North Rhine-Westphalia) as the 'Sägewerk Buchen' sawmill, the company has evolved over 100 years into a ~250-employee Mittelstand industrial operation with two German production sites — Morsbach (~160 employees) and Gransee/Brandenburg (~80 employees) — plus the Optirent Mobilraum-Mietservice GmbH rental subsidiary headquartered in Bergneustadt. The company operates under four brands: SÄBU (turnkey modular buildings), FLADAFI® (versatile room, office, sanitary and storage containers based on the European-patented DBP 2853251 plug-in connection system), ISOLine (premium stackable system containers for up to 3-story applications), and SAFE (DIBt-approved, TÜV-certified hazardous-material storage containers, gas cylinder depots, and drip trays).

The core technology is a factory-produced, steel-frame modular construction system: individual room modules of 20–100 m² are prefabricated in weather-independent production halls (including a 4,700 m² hall added in 2014), then transported and assembled on-site to deliver permanent modular buildings up to five stories, turnkey, with claimed construction times up to 70% shorter than conventional building. Modules can be installed at a rate of 6–8 units per day on site. The 2016 Technology Center co-locates design and production planning with the factory floor. SAFE Tank ECO/CONTROL variants add demand-based or sensor-triggered ventilation automation for hazardous-substance storage compliance with WHG, TRGS 510, and StawaR regulations.

Säbu generates revenue through (i) one-time turnkey sales of modular buildings to education, healthcare, government and industrial customers; (ii) hardware sales of FLADAFI, ISOLine and SAFE products, partly via direct e-commerce (fladafi.de, auffangwannen.shop); (iii) professional services for planning, project management and on-site coordination; and (iv) rental of temporary modular space via Optirent for usage periods typically of five years or more. The go-to-market is sales-led via named account managers (Jochen Krämer for modular construction, Lars Rörig for room/storage technology, Derya Altinsoy for hazardous-material storage) and the company is prequalified (PQ-VOB since 2009) for German public procurement. Certifications include ISO 9001 (since 1997), ISO 14001, EN 1090-2/-4, and RAL Gütezeichen (since 1975).

Name

Säbu

Legal name

SÄBU Morsbach GmbH

Website

https://saebu.de

Company type

Private

Founded year

1924

Operating status

Operating

Headcount range

101–250 employees

Short description

Säbu is a fourth-generation, family-owned German manufacturer (founded 1924, ~250 employees) producing turnkey prefabricated modular buildings, FLADAFI® containers, ISOLine system containers, and DIBt-approved SAFE hazardous-material storage systems for industrial, public-sector, and healthcare customers across Germany and Europe.

Ownership category

akta.pro rank

Product category

Prefabricated Modular Building Manufacturing

NAICS

Prefabricated Metal Building and Component Manufacturing (332311), Structural Steel and Precast Concrete Contractors (23812)

SIC

Prefabricated Metal Buildings & Components (3448), Prefabricated Wood Bldgs & Components (2452)

akta.pro primary industry

Modular/Offsite General Contracting & Installation (IMAFAAAK)

akta.pro secondary industry

Specialty Access & Scaffolding Rental/Leasing (TLABAFAL)

Keywords

• Modular building construction
• Prefabricated steel frame modules
• Hazardous material storage containers
• Mobile container solutions
• Turnkey modular buildings

Headquarters

HQ city

Morsbach

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Modular Building Sales (Turnkey): Design, manufacture, and turnkey delivery of prefabricated modular buildings for permanent use. Projects span office/administrative buildings, schools, kindergartens, healthcare facilities, care homes, dormitories, and canteens. Revenue is project-based, one-time, with fixed pricing from planning through handover. Revenue recognition occurs at project completion/delivery.
2. FLADAFI® Container Products: Sale of space containers, storage containers, sanitary containers, office containers, and specialized containers (cash register, gatehouse, site containers, hall containers). Available in standard sizes (6×2.5m, 4×2.5m, 3×2.5m) and custom configurations. Includes online shop (fladafi.de) for direct product purchases.
3. SAFE Hazardous Material Storage Systems: Sale of hazardous material storage containers (SAFE Master, SAFE Tank), gas cylinder storage, drip trays/trays, and shelving systems for compliant outdoor and indoor storage of hazardous substances. Products are DIBt-approved and TÜV-tested.
4. Rental Solutions via Optirent: Through subsidiary Optirent Mobilraum-Mietservice GmbH, providing flexible rental of modular and container solutions for temporary needs. Complete service including delivery, installation, and dismantling, billed by usage period. Rental is viable for planned usage periods of at least five years; shorter needs served by system construction (Systembau).
5. Professional Services (Planning & Consulting): Comprehensive project management from initial concept through turnkey handover, including feasibility analysis, design, cost planning, on-site coordination, and construction supervision. A fixed contact person coordinates all trades throughout the project lifecycle.

Go-to-market motion2 records

Distribution channels6 records

Marketing channels7 records

Core offering

Säbu manufactures prefabricated modular buildings, room and storage containers, and hazardous material storage systems at two German production facilities in Morsbach and Gransee. The company offers turnkey modular construction with factory-produced steel frame modules (20–100 m²) assembled on-site for offices, schools, healthcare facilities, and housing up to five stories, alongside the FLADAFI® container line and DIBt-approved SAFE hazardous material storage systems. A rental channel is operated through subsidiary Optirent.

Product overview

Säbu operates as a modular building and container solutions manufacturer offering a comprehensive portfolio of physical products organized into three main categories: Modular Buildings (Modulbau), Container Solutions (FLADAFI® product line), and Hazardous Material Storage Systems (SAFE product line). The core Modulbau division provides factory-prefabricated steel frame modules for turnkey building construction suitable for offices, schools, kindergartens, healthcare facilities, and residential applications. The FLADAFI® sub-brand encompasses versatile room containers, office containers, sanitary containers, and storage containers in various sizes and configurations. The SAFE product line focuses on hazardous material storage solutions including SAFE Master compact depots, SAFE Tank containers (available in standard, ECO, and CONTROL variants), gas cylinder storage systems, and drip trays. Additionally, the ISOLine system container series offers high-quality stackable modular containers for multi-story applications. The company manufactures all products in Germany at its two production facilities in Morsbach (North Rhine-Westphalia) and Gransee (Brandenburg), with rental solutions available through subsidiary Optirent.

Differentiator

Problem solved

Functional benefit

Brands

• FLADAFI®: Brand for room containers, storage containers, and material containers. Covers office, residential, sanitary, construction site, and warehouse container solutions.
• SAFE
• ISOLine
• SÄBU

Products and services

• Säbu Modulbau (Modular Buildings) Modular building construction using factory-prefabricated steel frame modules (20–100 m² each) assembled on-site for turnkey delivery. Offers customized modular construction for individual projects and standardized system construction for interim buildings, suitable for offices, schools, kindergartens, healthcare facilities, and residential buildings up to five stories.
• FLADAFI® Raumcontainer (Room Containers) Versatile room containers available in standard sizes of 6×2.5m, 4×2.5m, and 3×2.5m, featuring galvanized steel shell construction, wood ceilings for improved acoustics, and optional thermal insulation packages. Can be used as offices, break rooms, or sanitary facilities.
• ISOLine Systemcontainer (System Containers)

Quantifiable outcome

• Up to 70% faster construction time compared to conventional building
• +7 more outcomes

Named customers29 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators7 records

Recent moves10 records

Expansion highlights5 records

Direct peers

• Container Homes: German provider of modular container and room-container solutions for offices, accommodation and construction-site use. Closely comparable to Säbu's FLADAFI® room, office and sanitary container lines and similar German Mittelstand positioning.
• DENIOS: European specialist in hazardous-material storage, spill containment and environmental protection equipment. Directly comparable to Säbu's SAFE product line, SAFE Tank and SAFE Master hazardous-material containers, drip trays and gas-cylinder storage.
• Kleusberg: German modular-building specialist offering turnkey modular construction for offices, schools, healthcare and industry. Directly comparable to Säbu Modulbau in product, customer verticals and German Mittelstand profile.
• Cadolto: German manufacturer of prefabricated modular buildings focused on healthcare, data centers and industrial applications. Highly comparable to Säbu Modulbau in technology (steel-frame modules), verticals and turnkey delivery model.
• Algeco (Modulaire Group): European leader in modular space rental and modular buildings, operating a large fleet of containers and modular buildings across multiple countries. Directly comparable to Säbu's Modulbau and FLADAFI®/Optirent container offerings, though with substantially larger scale and geographic footprint.
• Container-Bauer: German manufacturer of custom container and modular building solutions for commercial and industrial use. Directly competes with Säbu's FLADAFI® container line and select Modulbau applications.

Broad incumbents

• Losberger De Boer: Large European supplier of modular buildings, industrial tents and temporary space solutions. Comparable in modular-construction capability and customer base, but at meaningfully larger scale and with broader product portfolio including event structures.
• ALGECO / Hünnebeck Group (Modulaire): Parent group housing Algeco modular space and Hünnebeck formwork/scaffolding. Comparable as a broad incumbent in modular space and site-equipment rental overlapping Säbu's Optirent container rental and Modulbau offerings.

Emerging players

• BSS (Bau- und Service-Service): German supplier of containers, modular buildings and construction-site facilities. Comparable to Säbu's container and modular-building offerings, particularly for temporary and construction-site use cases.
• Zeppelin Rental: German rental specialist for construction equipment, machinery and temporary infrastructure. Overlaps with Säbu's Optirent rental of modular and container solutions for construction sites and events.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries2 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 Säbu