Rudolf Koller

What Rudolf Koller does

Rudolf Koller is a family-owned Austrian manufacturer of whirlpool and spa systems and components, headquartered in Vienna and founded in 1978. The company produces integrated whirlpool, hot tub, and outdoor spa solutions alongside individual components — jets, jet pumps, control systems, fittings, and piping — under proprietary technology brands such as ECOlution Jet Pump, SUPA STELTH, Click-In, Fitting-in-Fitting, and the KOLLER MILK System. It holds more than 750 product certificates and operates under ISO 9001:2015 and EN 17125 (outdoor/hot tub) certifications, with the Austrian National Coat of Arms awarded in 1998.

The company runs two vertically integrated production facilities in Vitis (Austria) and Jindřichův Hradec (Czech Republic), covering in-house metalworking, plastics, and electronics. Distribution is supported by sales offices in Vienna, Prague, and Malta, and warehouses in Austria, the Czech Republic, and China. Rudolf Koller's revenue model is B2B: it sells components and complete systems to specialist dealers and OEM bathtub manufacturers across Europe and increasingly Asia, supplemented by a Showroom and Competence Center at Vitis (opened 2024) for direct sales, demonstration, and dealer/OEM training. A long-standing supply relationship with POLYPEX GmbH has been in place since 1983, and a newer partnership with New Fluid Tech produced a pump nominated as a finalist at the 2026 Pump Industry Awards.

Name

Rudolf Koller

Legal name

Rudolf Koller Ges.m.b.H.

Website

https://rkoller.com

Company type

Private

Founded year

1978

Operating status

Operating

Short description

Rudolf Koller is a family-owned Austrian manufacturer founded in 1978, producing whirlpool and spa systems, components, and controls for specialist dealers and OEM bathtub manufacturers across Europe and Asia.

Ownership category

akta.pro rank

Product category

Whirlpool and Spa Systems

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers (42373), Major Household Appliance Manufacturing (33522)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070)

akta.pro primary industry

HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)

Keywords

• Whirlpool systems
• Spa equipment
• Bath components
• Jet pump technology
• Hot tub manufacturing

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Whirlpool Components and Systems Sales: Sale of whirlpool bathtub systems, components (jets, pumps, air blowers, controls), and complete spa solutions to specialist dealers and manufacturers. Products manufactured in-house in EU factories.
2. Installation Training Services: Whirlpool installation training days offered at company factories for partner assembly production staff, plus assistance setting up customer whirlpool workstations.
3. Catalog and Information Materials: Printed main catalogues sent to business clients. Catalogues available in multiple languages (German, English, Czech, Spanish, Russian, French).

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Rudolf Koller (Koller Whirl-Systems) designs and manufactures complete whirlpool bathtub systems, hot tub SPAs, outdoor SPAs, walk-in bathtubs, and supporting components such as jets, pumps, controls, and disinfection systems. All products are produced in-house at EU factories in Vitis (Austria) and Jindrichuv Hradec (Czech Republic) and sold through a global specialist dealer network and directly to registered business customers.

Product overview

Rudolf Koller (Koller Whirl-Systems) is a manufacturer of whirlpool and spa systems with over 45 years of experience. The product portfolio centers on complete whirlpool bathtub systems and outdoor wellness products, supported by a comprehensive range of proprietary components. Core products include Whirlpool Tubs, Hot Tub SPA (wood-fired), Outdoor SPA, Walk-In Bathtubs, and Baby Whirlpools. Key add-on modules include Koller Milk (water revitalization with microscopic air bubbles), Disinfection Systems, and Koller Aqua Active. The company produces its own component line including ECOlution Jetpumps with patented SUPA STELTH Technology, Poolmaster control panels, various jet types (Magic Jet, Future Jet, Micro Jet, Nano Jet), assembly technologies (Click-In, Fitting-in-Fitting, C-Profile), LED RGB lighting systems, and electronic controls. All products are manufactured exclusively within the EU with over 750 product certificates. The company operates manufacturing facilities in Austria (Vitis) and Czech Republic (Jindrichuv Hradec), with headquarters in Vienna.

Differentiator

Problem solved

Functional benefit

Brands

• KOLLER MILK: Innovative water revitalization system with microscopic air bubbles for skin oxygenation, collagen stimulation, and wellness treatment.
• Poolmaster
• ECOlution Jet Pump
• Click-In Technology
• OUTDOOR SPA
• HOT TUB SPA

Quantifiable outcome

• +40% efficiency vs conventional pumps
• +4 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Three partnerships are on record, tiered core and minor.

• POLYPEX GmbHcoreStrategic or Co-development PartnerLong-standing successful cooperation with POLYPEX GmbH, one of Austria's leading bathtub manufacturers, dating back to 1983. Collaboration began with the invention of the drain-overflow system with emptying function.
• New Fluid TechminorStrategic or Co-development PartnerJoint finalist nomination at Pump Industry Awards 2026 in Environmental Contribution of the Year category. Collaborative partnership for innovative pump technology.
• Specialist Dealers NetworkcoreChannel Partner/ Reseller/ DistributorPartner service program for companies wanting to become distribution partners. Koller provides technical training, support from idea to implementation, and access to complete product range.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Market position

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/rudolf-koller-gmbh

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries5 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 Rudolf Koller