Kieselmann

What Kieselmann does

KIESELMANN GmbH is a family-owned German manufacturer of fluid process technology for hygienic and aseptic industrial applications, founded in 1937 and headquartered in Knittlingen, Germany. The company designs, manufactures, and distributes stainless steel process valves (butterfly, double-seat, single-seat, ball, control, and aseptic), piping systems, tank fittings, and custom process plants — including CIP cleaning systems, KZE flash pasteurization units, HGB high-gravity blending systems, hygienic and aseptic pigging technology, valve manifolds, and distribution panels. Differentiated offerings include the proprietary k-flex sealing system, the patented duplex pig (claimed to reduce pipeline cleaning water consumption by up to 80%), the GEMBRA aseptic valve line, and the third-generation KI-TOP control heads with IO-Link, AS-i, and SPS connectivity. The company also operates one of Germany's largest stainless steel pipe trading inventories, exceeding 200,000 meters in stock.

The business operates across five verticals — beverage and food (primary), pharmaceutical and biotechnology (primary, served via KIESELMANN Pharmatec GmbH founded 2015), chemical, and cosmetic — through a multi-channel go-to-market: direct enterprise sales with engineering consultation for custom process plants, four wholly-owned branch offices in France (Ennevelin), England, China (Beijing, since 2001), and Russia (Moscow), approximately 30 international sales representatives, and an e-commerce shop (shop.kieselmann.de) for standardized components. Pricing is unit-based for standard catalog products and project-specific quotation for engineered systems. Revenue is generated through hardware sales (valves, pipes, fittings), project-based professional services (plant engineering, installation), and service revenue (manufacturer-independent maintenance, calibration, training, and 3D laser pipe processing).

KIESELMANN operates as the parent of the FLUID PROCESS GROUP, which includes RIEGER Behälterbau (acquired 2012), GROSS Behälterbau (acquired 2018), Guth Ventiltechnik (acquired 2015), AquaDuna cleaning technology (stake 2009), KIESELMANN Pharmatec (founded 2015), and KIESELMANN Anlagenbau (founded 1973). The company is led in dual-CEO structure by Klaus Dohle and Caroline Pötzl (née Dohle) since January 2021, representing the third and fourth generation of the founding family. The workforce of 251–500 is concentrated at the Knittlingen headquarters, with manufacturing executed in Germany and certifications including ISO 9001, ISO 14001, 3A sanitary standards, FDA-compliant sealing materials, and TÜV Süd type examination on safety valves.

Name

Kieselmann

Legal name

KIESELMANN GmbH

Website

https://kieselmann.de

Company type

Private

Founded year

1937

Operating status

Operating

Headcount range

251–500 employees

Short description

KIESELMANN is a family-owned German manufacturer of stainless steel process valves, piping systems, and custom process plants for hygienic and aseptic applications, serving beverage, food, pharmaceutical, chemical, and cosmetic customers across Europe and Asia.

Ownership category

akta.pro rank

Product category

Industrial Process Valves and Fluid Handling Equipment

NAICS

Industrial Valve Manufacturing (332911), Other Metal Valve and Pipe Fitting Manufacturing (332919), Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (331210), Other General Purpose Machinery Manufacturing (3339), Fluid Power Valve and Hose Fitting Manufacturing (332912), Metal Valve Manufacturing (33291)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550), Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Pumps & Pumping Equipment (3561), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Industrial/Process Piping & Mechanical Contracting (IMAFALAG)

akta.pro secondary industries

Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH), Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels) (IMAHAEAF), Chemical Processing Equipment (Reactors, Mixers, Agitators) (IMAHAEAA), Single-Use Systems Assembly & Consumables Manufacturing (Bags/Tubing/Assemblies) (HLAGAGAH)

Keywords

• Process valve technology
• Stainless steel piping
• Hygienic fluid processing
• Aseptic process equipment
• Industrial plant engineering

Headquarters

HQ city

Knittlingen

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Process Valves and Components: Sale of stainless steel process valves (butterfly valves, double-seat valves, single-seat valves, ball valves, safety valves, tank fittings, etc.) and piping components (pipes, fittings, connections, profiles). Products available via direct sales and online shop. Revenue is primarily one-time product sale with optional aftermarket spare parts and service contracts.
2. Process Systems and Plant Construction: Design, fabrication, and installation of custom process systems including CIP plants, KZE (flash pasteurization) plants, HGB (high gravity blending) systems, valve manifolds, distribution panels, pipe fences, and complete process plants for the food, beverage, pharmaceutical, and biotechnology industries. Revenue generated through project-based engineering and construction contracts.
3. Stainless Steel Pipe Trading: KIESELMANN operates one of Germany's largest stainless steel pipe inventories with over 200,000 meters of pipes in stock. The company trades pipes, profiles, bars, and flat/winkel steels as a distributor, generating revenue through product sales.
4. AquaDuna Cleaning Technology: AquaDuna, a subsidiary since 2009, develops and sells cleaning technology equipment including DUNOS static cleaners, batch cleaners, rotation cleaners, and target jet cleaners for tank cleaning applications.
5. Maintenance, Calibration, and Training Services: Manufacturer-independent maintenance and calibration services for mechanical seals on valves, pumps, filters, and more. Calibration of sensors for flow, pressure, temperature, and conductivity. Valve technology training sessions at customer sites or at the Knittlingen headquarters. Services available for all brands, not only KIESELMANN products.
6. Pipe Service (Rohrservice): 3D tube laser processing service for custom pipe cutting, drilling, threading, and welding seam detection. Delivers ready-to-install labeled components directly to construction sites.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

KIESELMANN manufactures and sells stainless steel fluid process technology components and complete process plants for hygienic and aseptic industrial applications. Its portfolio includes process valves (butterfly, double-seat, single-seat, ball, control, aseptic), piping systems, tank fittings, CIP/KZE/HGB process systems, valve manifolds, and patented duplex pigging technology, sold primarily to food, beverage, pharmaceutical, biotech, chemical, and cosmetic producers. The company also operates one of Germany's largest stainless steel pipe trading inventories (200,000+ meters) and offers manufacturer-independent maintenance, calibration, and pipe processing services.

Product overview

Kieselmann is a family-owned German company (founded 1937) offering comprehensive fluid process technology solutions. The product portfolio consists of three complementary business areas: (1) Components and valve technology including Verrohrung (tubing systems with 200,000+ meters stock), Ventiltechnik (premium valves including butterfly valves, double-seat valves, ball valves, aseptic valves), Behälterarmaturen (tank fittings), and Sonstige Armaturen (other fittings); (2) Process units and systems including CIP cleaning systems, KZE flash pasteurization systems, HGB blending systems, hygienic/aseptic pigging technology (Molchtechnik) with up to 80% water savings, valve manifolds (Ventilknoten) with upgrade-capable blind inserts, and distribution systems; (3) Beverage pipe trading with one of Germany's largest stainless steel pipe inventories. The portfolio also includes AquaDuna cleaning technology (acquired 2009), PHARMATEC pharmaceutical systems (founded 2015), and comprehensive maintenance and pipe processing services. Products are manufactured in Germany at Knittlingen headquarters with subsidiaries in France, UK, China, and 30 international representatives.

Differentiator

Problem solved

Functional benefit

Brands

• GEMBRA: Aseptic membrane valve product line featuring hybrid technology for microbiologically sensitive products in process plants.
• k-flex
• KI-TOP
• AquaDuna
• CIP-Anlagen

Products and services

• Verrohrung (Stainless Steel Tubing and Pipe Systems) Comprehensive range of stainless steel tubing and pipe components including DIN EN 10357, DIN 11866, DIN EN ISO 1127, and DIN EN 10217-7 pipes, plus square/rectangular profiles, profile steel, pipe connections, pipe fittings, and mounting accessories, stocked with over 200,000 meters of pipe. For industrial customers in food, beverage, pharma, chemical, and cosmetic process plants.
• Ventiltechnik (Valve Technology Portfolio) Premium valve technology portfolio including butterfly valves, leakage butterfly valves, double-seat valves, ball valves, control valves, single-seat valves KI-DS, overflow valves, aseptic valves, aseptic sampling valves, aseptic small-seat valves, control heads (KI-TOP), and the k-flex seal system. Features modular design with pneumatic or manual actuation. For hygienic and aseptic process plant operators.
• Behälterarmaturen (Tank Fittings) Tank fitting solutions including bung valves (Spundventile), pressure compensation valves, tank dome valves (Tankdomarmaturen), and safety valves designed for beverage, dairy, and food processing applications.
• CIP-Anlagen (Cleaning-in-Place Systems) Cleaning-in-Place systems for automated cleaning of process systems and individual components without disassembly. Multi-step cleaning with water, alkaline, acid, and disinfection; custom designed and delivered with process control systems mounted on stainless steel frames. For food, beverage, and pharma plant operators.
• KZE-Anlagen (Flash Pasteurization Systems) Short-time heating systems (Kurzzeiterhitzungsanlagen) for pasteurization that increase shelf life of food and beverages by destroying yeast cells and microorganisms. Includes process control and is delivered ready for connection on stainless steel frame. For beverage and liquid food producers.
• HGB-Anlagen (High Gravity Blending Systems) High Gravity Blending units for breweries enabling production of different beers from one base. Features real-time monitoring and control of original gravity, alcohol content, and flow rates using inline sensors and flow meters.
• Molchtechnik (Pigging Technology) Hygienic and aseptic pigging systems featuring patented KIESELMANN duplex pigs for pipeline emptying and cleaning. Hygienic version uses EPDM, Silicone, or Viton pigs; aseptic version uses silicone with migration test. Saves up to 80% water consumption compared to conventional cleaning. For food, beverage, and pharma pipeline operators.
• Ventilknoten (Valve Manifolds) Hygienic and aseptic valve manifolds serving as media routing systems for fully automatic process plants. Custom designed for specific processes, controllable via pneumatic actuators and control heads through bus systems. Includes upgrade-capable blind inserts. For process plant builders.
• Verteilerpaneele und Rohrzäune (Distribution Panels and Pipe Fences) Distribution panels and pipe fences for cost-effective media routing in process plants. Individually designed and integrated into plant architecture, particularly efficient for fermentation and aging processes.
• AquaDuna Reinigungstechnik (AquaDuna Cleaning Technology)

Quantifiable outcome

• Up to 80% water savings in pipeline cleaning through duplex pigging technology compared to conventional methods
• +5 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature8 records

Partnerships

Nine partnerships are on record, tiered minor and core.

• Dr. Johannes-Faust-Schule KnittlingenminorOthers · 1 January 2026KIESELMANN supports the Dr. Johannes-Faust-Schule through laptop donations for a job application workshop (Bewerbungswerkstatt), providing students with digital tools and practical career preparation. This builds on a long-standing educational partnership between the school and KIESELMANN.
• DrinkTank – Getränke 4.0 Working GroupminorStrategic or Co-development Partner · 1 January 2024KIESELMANN participates in the DrinkTank – Getränke 4.0 working group, a collaboration of companies and research institutes working on digitalization and AI approaches for the beverage industry. Testing is conducted at the Kaspar Schulz 10 HL pilot brewery. Members include KASPAR SCHULZ Brauereimaschinenfabrik & Apparatebauanstalt GmbH, Micro Matic, and others.
• GROSS Behälterbau GmbHcoreStrategic or Co-development Partner · 1 January 2018Retrospectively effective May 15, 2018, KIESELMANN acquired GROSS Behälter- und Anlagenbau GmbH, renamed GROSS Behälterbau GmbH. The company was integrated into the KIESELMANN Fluid Process Group to complement RIEGER Behälterbau in stainless steel tank construction.
• KIESELMANN Pharmatec GmbHcoreStrategic or Co-development Partner · 1 January 2015KIESELMANN Pharmatec GmbH was founded as a separate company in 2015, specializing in process systems for the pharmaceutical and biotechnological industry. It operates as an independent entity within the KIESELMANN Fluid Process Group, offering custom-designed process plants and automation for pharma and biotech applications.
• Guth VentiltechnikcoreStrategic or Co-development Partner · 1 January 2015KIESELMANN acquired Guth Ventiltechnik, securing jobs in Landau and expanding the valve program of the KIESELMANN Fluid Process Group. The acquisition added specific valve technologies to the group's portfolio.
• Ruland Engineering & Consulting GmbHminorStrategic or Co-development Partner · 1 January 2013KIESELMANN took a stake in Ruland Engineering & Consulting GmbH in 2013. The company specializes in process systems for liquid products, further expanding KIESELMANN's engineering capabilities.
• RIEGER GmbHcoreStrategic or Co-development Partner · 1 January 2012KIESELMANN acquired RIEGER GmbH in Bietigheim-Bissingen in 2012, including subsidiary Fecoral in Pees, Hungary. RIEGER produces high-quality tanks, containers, and accessories from non-rusting chromium-nickel and special steels. The acquisition expanded KIESELMANN's portfolio into stainless steel tank construction.
• VA Food Processing GmbHminorStrategic or Co-development Partner · 1 January 2010KIESELMANN took a stake in VA Food Processing GmbH in 2010. The company has been planning and installing process systems for the food industry since 1993, adding process engineering capabilities to the group.
• AquaDuna GmbH & Co. KGcoreStrategic or Co-development Partner · 1 January 2009KIESELMANN acquired a stake in AquaDuna GmbH & Co. KG in 2009. AquaDuna develops machines and technologies for cleaning containers, specializing in devices that achieve effective cleaning with minimized consumption. AquaDuna belongs to the KIESELMANN Fluid Process Group and operates as an independent brand offering DUNOS cleaning technology products (DUNOS S, DUNOS R, DUNOS RN, DUNOS RB, DUNOS O, DUNOS WD, Moving Unit).

Scale indicators7 records

Recent moves14 records

Expansion highlights6 records

Direct peers

• GEA Group: German-headquartered global process technology supplier serving food, beverage, and pharma. GEA's separation/homogenization, valve (Tuchenhagen), and process plant businesses compete head-to-head with Kieselmann's valve, pigging, CIP, KZE, and process plant offerings in the same hygienic/aspectic space.
• Alfa Laval: Swedish global leader in heat transfer, separation, and fluid handling. Alfa Laval competes directly with Kieselmann in hygienic pumps, valves, and process equipment for dairy, beverage, and food applications, often on the same end-customer projects.
• Bürkert Fluid Control Systems: German manufacturer of process valves, solenoid valves, sensors, and control heads for hygienic and industrial fluid handling. Bürkert overlaps with Kieselmann's valve and KI-TOP control head portfolio for beverage, pharma, and chemical customers.
• GEMÜ Group: German manufacturer of valves, measurement, and control systems for industrial fluids, biotechnology, and pharmaceutical applications. GEMÜ's single-use and aseptic valve range competes with Kieselmann's GEMBRA aseptic valves and Pharmatec solutions.
• SPX Flow: Global provider of process equipment for food, beverage, dairy, and pharma. SPX Flow's APV and WCB brands directly compete with Kieselmann's hygienic process systems, valves, and plant-engineering offerings.
• Krones AG: German-based global market leader of complete beverage lines and process technology. Krones competes with Kieselmann Anlagenbau in brewery and beverage plant engineering and overlaps in valves and CIP systems supplied to the same beverage customers.
• Schubert & Salzer Control Systems: German specialist manufacturer of industrial control valves, butterfly valves, and aseptic process valves. Schubert & Salzer competes with Kieselmann in hygienic process valve segments for beverage, chemical, and pharma applications.

Broad incumbents

• Pentair: U.S. global water and fluid solutions company with a Flow Technologies platform that includes process valves and fluid handling. Pentair overlaps with Kieselmann in fluid handling for food/beverage and industrial customers but operates much more broadly in water and pool segments.
• Endress+Hauser: Swiss-German global leader in industrial process measurement and instrumentation, including flow, pressure, temperature, and analytical sensors used alongside Kieselmann valves. Endress+Hauser targets the same food/beverage/pharma process automation customers with complementary (not directly overlapping) offerings.
• CFT Group (Bühler / Bertschi): Bühler's process and packaging solutions for food, beverage, and dairy compete in adjacent segments with Kieselmann Anlagenbau's plant engineering. Bühler offers far broader global coverage; Kieselmann specializes more narrowly in hygienic fluid technology components and systems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights8 records

Customer concentration

• YouTubeyoutube.com/@FluidProcessGroup
• Facebookfacebook.com/kieselmann.group
• LinkedInlinkedin.com/company/5733709/admin/feed/posts
• Instagraminstagram.com/kieselmann_gmbh

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries12 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 Kieselmann