Zeller Bäderbau GmbH

What Zeller Bäderbau GmbH does

Zeller Bäderbau GmbH is a German manufacturer of self-supporting stainless steel swimming pools serving municipal and public bath operators across Europe. Founded in 1992 by Willi Zeller and Josef Lassnig in Germany and Austria, the company has been wholly owned by the Lassnig family since 1998 and is led by three family Managing Directors (Josef, Dietmar, and Marco Lassnig). Headquartered in Berlin at Kurfürstendamm 15, the company operates a 14,000 m² production facility in Heidenheim an der Brenz and runs direct subsidiaries in Austria (Telfs) and France (ZELLER France SAS, founded 2007). The firm has built approximately 2,000 pools since 1992, including the world's largest stainless steel pool at Tropical Islands Berlin (3,800 m², 2004) and reference installations in Germany, Austria, France, Luxembourg, Denmark, and Norway.

The company's core technology is a self-supporting stainless steel pool system requiring only strip foundations for new construction or compatible with existing pool floors for retrofitting. Differentiated technical components include a pool-head with overflow-channel and gutter grating executed to ±2 mm accuracy per KOK standards, vertical fresh-water feed channels with detachable lids calibrated to DIN 19643 hydraulic standards, anti-slip floor surfaces meeting C-class skid resistance, and a fully integrated stainless steel accessory system (stairs, handrails, attractions) that enables future additions without visible impairment. Production takes place in dedicated 'white' production halls that exclude corrosion-endangering metals, and certified welding (DIN EN 1090-1 EXC 3, DIN 18 800-7 Klasse D, EN 287/EN ISO 9606-1) under TÜV-reviewed procedures is mandatory for tender qualification.

Zeller generates revenue through project-based B2B sales of custom stainless steel pools for new construction and retrofitting, with quote-based pricing and multi-year contracts handled by regional sales managers (Andreas Renne for North Germany, René Kowalewski for South Germany). The GTM motion is direct enterprise field sales supported by on-site consultation, 3D design visualization for architects and planners, tender-document preparation, and guided reference-project tours. The offering bundles design, fabrication, and assembly under a single provider using company-owned personnel, targeting public-sector clients whose primary pain points are leak prevention, low lifecycle maintenance, and resistance to frost and thermal expansion common in tiled or PVC-lined pools.

Name

Zeller Bäderbau GmbH

Legal name

ZELLER bäderbau GmbH

Website

https://zeller-baederbau.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

Zeller Bäderbau GmbH is a German manufacturer of self-supporting stainless steel swimming pools for municipal and public bath operators across Europe. Founded in 1992 and 100% owned by the Lassnig family, the company designs, fabricates, and installs pools from its 14,000 m² Heidenheim facility, with regional sales across Germany, Austria, and France.

Ownership category

akta.pro rank

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Custom stainless steel pool construction: Project-based revenue from design, fabrication, and installation of custom stainless steel swimming pools for municipal and public facilities. Services include 3D design and construction planning, manufacturing in their Heidenheim facility, and assembly with company-owned personnel. Projects range from individual pool installations to large-scale developments like Tropical Islands.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Zeller Bäderbau GmbH designs, fabricates, and assembles self-supporting stainless steel swimming pools for municipal and public bath operators. The company handles the entire value chain in-house—from 3D design and construction planning, manufacturing in its 14,000 m² Heidenheim production facility, to on-site assembly using its own personnel. It offers both new construction and retrofitting (lining) of indoor and outdoor pools, complemented by integrated water attractions and accessories.

Product overview

Zeller Bäderbau GmbH is a manufacturer of stainless steel swimming pools for municipal and public facilities. The company offers Edelstahlschwimmbecken (Stainless Steel Swimming Pools) as its core product, complemented by Pool Accessories (slides, showers, water attractions, and adventure features) and integrated service offerings including 3D Design and Construction Planning, Pool Construction Services (self-supporting construction, overflow systems, water distribution), and Consultation and Project Support Services. The complete offering provides customers with everything from a single source: design and construction in 3D, production in their 14,000 m² state-of-the-art facility in Heidenheim, Germany, and assembly by company-owned personnel. The company serves public and municipal indoor and outdoor swimming pools across Europe.

Differentiator

Problem solved

Functional benefit

Products and services

• Stainless Steel Swimming Pools (Edelstahlschwimmbecken) Self-supporting stainless steel swimming pools for new construction and retrofitting of municipal and public indoor and outdoor pools. Available in self-supporting construction or lining formats, with customizable dimensions, integrated accessories, and water attractions. The pools use specialized wall systems, overflow channels, fresh-water distribution via floor channels with detachable lids, and integral stainless steel accessories.
• Pool Accessories (Ausstattungen) Pool equipment and attractions including wide water slides (stainless steel), water mushroom showers, waterfalls, rain gates, jet stream canals, neck showers, water veils, water hedgehogs, geysers, wiggly snails (GFRP), handicapped access features, water slide safety outlets, adventure areas, and Kneipp wading pools. Designed as integrated add-ons for the company's stainless steel pools.
• 3D Design and Construction Planning 3D visualization and technical construction planning service for stainless steel pools, enabling architects, planners, and clients to preview project details and construction elements before implementation.
• Pool Construction Services Complete pool construction services including self-supporting pool wall systems, pool-head with overflow-channel systems, water distribution systems (inlet channels), pool floor installation, and professional assembly by company-owned personnel.
• Consultation and Project Support Services On-site consultation, renovation and attractiveness enhancement proposals, cost estimation, support in preparing tender documents, and guided tours to reference projects for municipal and public bath operators.

Named customers20 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Fluidra: Spanish-listed global pool equipment and aquatic infrastructure conglomerate (parent of Myrtha Pools). Competes with Zeller indirectly via its Myrtha stainless-steel pool line and broader pool equipment portfolio serving the same municipal customers.
• Hayward Holdings: US-listed pool equipment manufacturer with European commercial-pool presence. Competes indirectly with Zeller through pumps, filtration, and automation that complement or substitute for the integrated water-distribution systems Zeller builds into its stainless-steel basins.
• Desjoyaux: French manufacturer of permanent formwork/permanent form pool systems for residential and public pools. Competes for the same French municipal and public-sector pool tenders Zeller addresses via ZELLER France SAS, but with a concrete-cassette rather than stainless-steel approach.
• Pentair: US-listed global pool equipment and water-treatment company serving residential and commercial pool markets. Not a direct pool-construction competitor, but overlaps with Zeller at the equipment, water-distribution, and pool-system integration layer for municipal facilities.

Direct peers

• Myrtha Pools: Italian-origin manufacturer of modular stainless-steel pools, now owned by Fluidra, serving municipal, competition, and aquatic-center customers globally. Competes head-to-head with Zeller in stainless-steel municipal and competition pool projects.
• Wiegand Maelzer: Swiss stainless-steel pool fabricator with comparable self-supporting construction technology and a European municipal customer base. Closest direct Swiss-language-market competitor to Zeller's stainless-steel pool systems.
• Berndorf Bäderbau: Austrian stainless-steel swimming pool manufacturer with overlapping product offering (prefabricated stainless pool basins), serving European municipal and public bath customers. Most direct competitor to Zeller in the DACH stainless-steel pool niche.

Emerging players

• Polin Waterparks: Turkish manufacturer of waterpark attractions and slide/flume products. Comparable to Zeller's stainless-steel accessories business (slides, attractions, water features) and increasingly competing for full aquatic-center project scopes including stainless pool basins.
• Renolit: German manufacturer of pool liners (RENOLIT ALKORPLAN) widely used in European public pool renovation. Substitutes for stainless-steel retrofit linings in cost-driven tenders, making Renolit a partial alternative rather than direct head-to-head competitor.

Regional players

• Compass Pools: UK-based manufacturer of one-piece ceramic-core swimming pools serving European residential and commercial pool markets. Geographic and channel overlap with Zeller's expansion plans in Northern/Western Europe, though focused on a different construction technology.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/zeller-b%C3%A4derbau-gmbh

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Zeller Bäderbau GmbH