Rieger

What Rieger does

Rieger GmbH + Co KG is a German industrial manufacturer founded in 1879 and headquartered in Aalen, Baden-Württemberg, organized into two divisions: Process Technology and Aluminum Foundry. The Process Technology division designs and manufactures stainless steel hygienic and aseptic valves (single-seat, double-seat, double seal, control, and angle seat valves), complete CIP (Cleaning-in-Place) systems, aseptic pigging stations, custom valve manifolds, and engineered tube-bending and tube-collar solutions for pharmaceutical, biotech, dairy, beverage, and food processing customers. Proprietary technology includes the SpeedPush actuator drive (reduced air consumption during CIP), PTFE bellows rated for 3.6 million switching cycles, a utility-model-protected DD double seal valve with piggable N4 variant, and the jointly developed FlowStar control head (with AWH and Bürkert). The Aluminum Foundry division is one of Germany's oldest, producing approximately 1,000 tons of castings per year for automotive and mechanical engineering customers using a Striko premelting furnace and both hand-molded and machine-mold processes.

Rieger generates revenue through engineered-to-order hardware sales (custom-quoted, no public pricing), supplemented by professional services including preventive maintenance contracts, spare parts supply, on-site service training, and customer training seminars at its Aalen headquarters. The company sells via direct enterprise field sales engineers covering Germany and Austria, an international sales team, an inside sales function, and a wholly-owned US subsidiary (Rieger Flow Products LLC, Kenosha WI, est. October 2015) serving North and South America. Distribution is reinforced by membership in the worldwide Neumo Ehrenberg Group (with sibling company AWH) and OEM specification partnerships with Krones, Tetra Pak, SIG Combibloc, and KHS, which embed Rieger valves into global plant builder supply chains. Marketing is supported by a multilingual website (six languages), LinkedIn, Xing, YouTube, Vimeo, Instagram, active trade show participation, downloadable technical catalogs and 3-A/TÜV certificates, and the IC-Rieger mobile app for service requests and spare parts reordering.

Name

Rieger

Legal name

Rieger GmbH + Co KG

Website

https://rr-rieger.com

Company type

Private

Founded year

1879

Operating status

Operating

Headcount range

101–250 employees

Short description

Rieger is a German industrial manufacturer (founded 1879) of stainless steel hygienic and aseptic valves, CIP systems, pigging stations, and custom process modules, serving pharmaceutical, biotech, dairy, beverage, and food processing customers globally, alongside a legacy aluminum foundry division.

Ownership category

akta.pro rank

Product category

Industrial Process Valves and Systems

NAICS

Metal Valve Manufacturing (33291), Fabricated Pipe and Pipe Fitting Manufacturing (332996)

SIC

General Industrial Machinery & Equipment, Nec (3569), Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH)

akta.pro secondary industry

Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers) (IMAHAGAI)

Keywords

• Hygienic process valves
• Aseptic valve systems
• CIP cleaning systems
• Aluminum foundry castings
• Stainless steel valves

Headquarters

HQ city

Aalen

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Valve Manufacturing and Sales: Production and sale of hygienic and aseptic valves including single-seat valves (ESV, LCV series), double-seat valves (N1, N2, N3, N5, N9), double seal valves (DD, N4), control valves, and angle seat valves. All products manufactured from stainless steel in various grades.
2. System Technology and CIP Systems: Complete valve systems, valve manifolds, CIP (Cleaning-in-Place) systems, and aseptic pigging stations. Systems include tanks, pumps, valve technology, heat exchangers, and instrumentation integrated into plug-and-play modules.
3. Custom Solutions and Engineering: Customer-specific solutions including valve blocks from seat valves, 3D pipe bending constructions, and tube collars (Rohraushalsungen) to minimize dead zones and reduce weld seams by up to 80%.
4. Service and Maintenance: Service and maintenance for all Rieger products and other common valve manufacturers. Includes preventive maintenance with service contracts, spare parts supply, on-site service training, and optimization engineering.
5. Training Seminars: Training seminars for plant operators, sales partners, and experienced users, offered on-site and at the Aalen headquarters.
6. Aluminum Foundry: One of Germany's oldest aluminum foundries producing castings for automotive industry and mechanical engineering. Approximately 1,000 tons of castings per year with hand-molded and machine mold casting capabilities.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

Rieger manufactures hygienic and aseptic stainless steel valves (single-seat, double-seat, double seal, control, overflow, and sampling valves), complete valve systems, CIP cleaning-in-place systems, aseptic pigging stations, custom valve manifolds and tube bending solutions. The company also operates an aluminum foundry producing custom castings for automotive and mechanical engineering applications. All products are engineered-to-order and manufactured from stainless steel grades (316L, 316Ti, Hastelloy, AL6XN) at the Aalen, Germany headquarters.

Product overview

Rieger is a German industrial valve and process technology company founded in 1879, operating in two divisions: Process Technology and Aluminum Foundry. The Process Technology division offers a comprehensive valve portfolio including aseptic valves, hygienic single-seat valves (ESV and LCV series), and hygienic double-seat valves (N1, N2/PMO, N3, N5, N9), along with control valves, double seal valves (DD, N4), and overflow valves. These are complemented by system technology products including CIP systems, aseptic pigging stations, and valve manifolds/clusters. The company also provides custom solutions through valve blocks, 3D tube bending constructions, and pipe collar manufacturing. An IC Rieger mobile app enables remote valve management and service requests. The Aluminum Foundry division produces custom aluminum castings for automotive and mechanical engineering. Rieger Flow Products serves as the North/South American subsidiary. All products are manufactured from stainless steel (316L, 316Ti, Hastelloy, and special alloys) and are supported by comprehensive service, maintenance, and training offerings.

Differentiator

Problem solved

Functional benefit

Products and services

• Aseptic Valve Program
• Hygienic Valve Program
• Hygienic Double-Seat Valves (N1, N2/PMO, N3, N5, N9)
• Hygienic Double Seal Valves (DD, N4)
• ESV Hygienic Single-Seat Valves
• LCV Hygienic Valves
• Hygienic Control Valves
• Hygiene Overflow Valves (Type ER, E8, ÜS)
• BioCheck Sampling Valves
• CIP Systems (Cleaning-in-Place)
• Aseptic Pigging Station
• Valve Manifolds and Valve Clusters
• Valve Blocks and Clusters (Custom Solutions)
• 3D Tube Bending Constructions
• Pipe Collars / Tube Necking
• Aluminum Foundry Products
• Service and Maintenance
• IC Rieger App
• Training Seminars

Named customers18 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Neumo Ehrenberg GroupcoreStrategic or Co-development PartnerRieger is a member of the worldwide operating Neumo Ehrenberg Group. The group operates under www.negflow.com and includes multiple companies in the process technology and valve industry. Rieger collaborates with group members on product development and market presence.
• AWHcoreTechnology or IntegrationAWH is another member of the Neumo Ehrenberg Group. Rieger and AWH jointly developed the FlowStar control head with Bürkert. AWH produces valves and hygienic pigging technology. Rieger double seal valves are mentioned in AWH pigging technology brochures.
• BürkertcoreTechnology or IntegrationJoint development partnership with AWH and Rieger to create the FlowStar control head. Bürkert provides the base technology for the inductive valve position detection system with teach function. The control head integrates fieldbus interfaces including AS-Interface, DeviceNet, IO-Link, and büS.
• KronesminorChannel Partner/ Reseller/ DistributorKrones is a major plant manufacturer for beverage filling and packaging. Rieger supplies valves and valve systems for integration into Krones' beverage processing plants worldwide.
• Tetra PakminorChannel Partner/ Reseller/ DistributorTetra Pak is a leading food processing and packaging systems company. Rieger supplies valves and systems for integration into Tetra Pak's processing equipment.
• SIG Combibloc SystemsminorChannel Partner/ Reseller/ DistributorSIG Combibloc produces carton packaging systems. Rieger supplies valves for process integration in their packaging lines.
• KHSminorChannel Partner/ Reseller/ DistributorKHS manufactures beverage filling technology and process systems. Rieger provides valves for KHS plant construction.

Scale indicators7 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Alfa Laval: Swedish global leader in hygienic pumps, valves, and heat exchangers for dairy, food, beverage, and pharma — directly comparable in stainless-steel process equipment, CIP offerings, and hygienic/aseptic valve portfolio to Rieger.
• GEA Group: German process technology major with separators, homogenizers, valves, and complete plant solutions for dairy, food, beverage, and pharma — overlapping customer base, stainless-steel valve business, and CIP/system integration scope with Rieger.
• Pentair (Flow & Filtration Solutions): Global flow control and filtration business with stainless process valves and fittings for industrial and hygienic applications — directly comparable in metal valve and fluid-handling components serving food/beverage, pharma, and industrial customers.
• AWH Armaturenwerk Hörsten: Sister company under the Neumo Ehrenberg Group producing hygienic/asetic valves and pigging technology — direct peer in the same product families (double-seat valves, pigging stations) and same end markets as Rieger, sharing FlowStar development.
• Schubert & Salzer Control Systems: German specialist in segmented ball valves and control valves for industrial process applications — a comparable mid-sized European valve manufacturer focused on high-spec, application-engineered flow control products.
• SPX FLOW (now part of SPX Technologies / Lone Star Funds): US-based provider of process equipment and hygienic valves (APV, Waukesha Cherry-Burrell) for food, beverage, and pharma — directly comparable sanitary valve and process-system portfolio serving overlapping end markets as Rieger.

Broad incumbents

• Watts Water Technologies: US-listed global manufacturer of valves, fittings, and flow-control products with a much broader portfolio serving plumbing, HVAC, and industrial customers — overlaps with Rieger in stainless process fittings and OEM-supply channel.
• Bürkert Fluid Control Systems: German-headquartered specialist in process valves, sensors, and control-head technology that co-developed the FlowStar control head with Rieger and AWH. Significantly broader portfolio of pneumatic valves, automation, and instrumentation than Rieger, but deeply intertwined in valve-control technology for the same hygienic/aseptic process market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCqQFMV0rzMqaov3sR3nNBqw
• LinkedInlinkedin.com/company/2834232
• Instagraminstagram.com/rieger.industries

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 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 Rieger