What Diringer & Scheidel Unternehmensgruppe does

DIRINGER & SCHEIDEL Unternehmensgruppe is a privately held German industrial group founded in 1921 and headquartered in Mannheim, Germany, operating as a limited partnership (GmbH & Co. KG). The analyzed core entity, DIRINGER & SCHEIDEL ROHRSANIERUNG, is a specialized B2B contractor providing trenchless (no-dig) pipe rehabilitation services to municipalities, public water and wastewater utilities, and industrial operators. The company positions itself as offering all common rehabilitation processes from a single source, spanning drinking water, gas, sewage, and industrial pipelines in nominal diameters from DN 80 to DN 3000 across steel, cast iron, concrete, ceramic, and plastic pipe materials.

The company's technology base is a portfolio of 14–15 distinct trenchless rehabilitation methods, including cured-in-place and inversion liners (DS CityLiner, UV-Liner), close-fit lining (DynTec, Compact Pipe), fabric-hose relining (BlueTex, BlueLine), pipe bursting (Berstlining), GRP large-pipe relining, cement mortar lining (DVGW W 343 / R4), manhole and structural rehabilitation, and robot-assisted repair (DS Roboter / KA-TE robots). Several methods are DVGW-certified and hold DIBt general building authority approval. The company operates proprietary mobile impregnation plants (3,000 kg capacity for CityLiner, 800 kg for house connections) with PLC-controlled automatic mixing, and describes itself as the world's largest user of its robot technology with over 20 years of experience. Its robotic and UV-curing systems are camera-monitored and mechanically/hydraulically operated rather than AI-driven.

The business model is project-based professional services, with revenue generated through competitive bidding, framework agreements, and direct procurement; pricing is quote-based and tailored to pipe conditions, diameters, lengths, and methods, with no public price disclosure. Go-to-market is enterprise field sales delivered by specialized on-site teams, supported by industry trade shows and conferences (Lindauer Seminar, Kasseler Trinkwassertagung), a multi-language website (German, English, French, Romanian), and social channels. Customers are segmented vertically into municipalities/utilities, industrial operators, and transportation/infrastructure, with references across German cities and clients including BASF, Siemens, K+S, Merck, and the airports of Frankfurt and Munich. The broader group spans additional divisions including construction, pressure pipe technology, real estate, senior care, and hotels.

Name

Diringer & Scheidel Unternehmensgruppe

Legal name

DIRINGER & SCHEIDEL ROHRSANIERUNG GmbH & Co. KG

Website

https://dus-rohr.de

Company type

Private

Founded year

1921

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

A Mannheim-based German group offering trenchless pipe rehabilitation services—relining, robotic repair, close-fit lining, and cement mortar coating—to municipalities, water and wastewater utilities, and industrial operators across drinking water, gas, sewage, and industrial pipelines.

Ownership category

akta.pro rank

Product category

Trenchless Pipe Rehabilitation Services

NAICS

Water and Sewer Line and Related Structures Construction (23711), Water and Sewer Line and Related Structures Construction (237110), Oil and Gas Pipeline and Related Structures Construction (23712)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Services-Miscellaneous Repair Services (7600)

akta.pro primary industry

Rehabilitation, Lining & Renewal (Pipe Relining, Trenchless Rehab, Asset Renewal) (IMAFAGAL)

akta.pro secondary industries

Trenchless Sewer Repair (Pipe Lining/CIPP) (HSAOABAH), Trenchless Sewer Replacement (Pipe Bursting) (HSAOABAI), Pipeline Rehabilitation & Renewal for NRW (Lining, Pipe Bursting, Targeted Replacement) (EUANAKAG), Pipeline & Main Repair and Rehabilitation (Clamps, Sleeves, Relining) (EUAJAMAB)

Keywords

• Trenchless pipe rehabilitation
• Sewer relining services
• CIPP pipe lining
• Drinking water infrastructure
• Manhole rehabilitation services

Headquarters

HQ city

Mannheim

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Pipe Rehabilitation Services: The company generates revenue through specialized pipe rehabilitation services, delivering trenchless repair solutions to municipal utilities, water suppliers, and industrial clients. Revenue is project-based, with contracts awarded through competitive bidding and direct procurement.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels8 records

Core offering

DIRINGER & SCHEIDEL Rohrsanierung delivers trenchless pipe rehabilitation services to municipalities, water utilities, and industrial operators across Germany and parts of Europe. The company offers 14+ specialized rehabilitation methods covering drinking water, gas, sewage, and industrial pipelines from DN 80 to DN 3000, including close-fit lining (DynTec), needle felt inversion (DS CityLiner), UV-cured liners, cement mortar coating, robot-assisted repair, pipe bursting (Berstlining), and manhole/structural rehabilitation. Services are delivered through specialized field teams with mobile on-site resin impregnation equipment and proprietary trenchless technologies certified under DVGW and DIBt standards.

Product overview

DIRINGER & SCHEIDEL ROHRSANIERUNG is a specialized pipe rehabilitation company offering a comprehensive portfolio of trenchless rehabilitation methods for underground infrastructure. The product portfolio includes 14 distinct rehabilitation technologies organized into two main categories: pipe relining methods (Berstlining, BlueLine, BlueTex, Compact Pipe, DS-Nadelfilz-Inversionsliner, DynTec, GFK-Großrohrrelining, Rohrrelining, UV-Liner, Zementmörtelauskleidung) and specialized rehabilitation solutions (Hausanschlussliner, Partielle Sanierung, Robotertechnik, Schacht- und Bauwerksanierung). These methods cover applications for drinking water, gas, sewage, and industrial pipelines across nominal diameters from DN 80 to DN 3000, utilizing technologies including HDPE close-fit lining, GFK/GRP liners, UV-curing resins, cement mortar coatings, and robotic repair systems.

Differentiator

Problem solved

Functional benefit

Brands

• CityLiner: PU coated needled felt tube pipe rehabilitation system for gravity and pressure pipes
• DS Roboter
• BlueLine
• BlueTex
• DynTec
• UV-Liner
• Manhole Liner

Products and services

• Berstlining Trenchless renewal method for gas, water, and sewage pipelines using pipe bursting technology to replace existing pipes without excavation. Serves municipalities, utilities, and industrial operators with aging or undersized underground infrastructure.
• BlueLine Verfahren Trenchless rehabilitation method for pressure pipelines in the drinking water sector using a fabric hose liner with adhesive bonding. Targeted at municipal water utilities needing DVGW-compliant drinking water pipe renewal.
• BlueTex Gewebeschlauchrelining Fabric hose relining method for rehabilitation of water and sewage pressure pipes made of steel, grey cast iron, or ductile cast iron in nominal sizes DN 100 to DN 1200. DVGW W270 compliant for drinking water applications.
• Compact Pipe HDPE pipe pre-formed into a C-shape during production and drawn into existing pipes, utilizing memory effect for close-fit rehabilitation. Suitable for rehabilitation of water, industrial, gas, and sewer pipes in nominal widths DN 100 to DN 500.
• DS-Nadelfilz-Inversionsliner (DS CityLiner & Polyesterliner) Needle felt inversion liner system including DS CityLiner (PU-coated with on-site epoxy resin impregnation) and Polyesterliner (factory-impregnated). Used for gravity and pressure pipe rehabilitation in diameters DN 200 to DN 800 with inversion lengths up to 300m and more.
• DynTec (close-fit-lining) DVGW Worksheet GW 320-2 certified trenchless pipe installation method where standard PE pipes are temporarily reduced in diameter on site and inserted into existing pipes, eliminating annular gap. Suitable for pipe lengths up to 1000m with nominal diameters DN 80 to DN 1200 and pressure stages PN 6 to PN 10.
• GFK-Großrohrrelining GRP (glass fiber reinforced polyester) large pipe relining for accessible sewers using pipe segments or special shape elements inserted via building pits. Targets larger-diameter accessible sewer networks in municipal and industrial settings.
• Hausanschlussliner House connection liner system for small nominal diameters from DN 100 to DN 300, featuring flexible fabric or needle felt hose with mobile impregnation system. Targeted at property lateral connections from municipal sewers to buildings.
• Partielle Sanierung (D&S Kurzliner, Hutprofile, Innenmanschetten) Partial rehabilitation methods including D&S Short Liner (DN 100 to DN 800), top-hat profiles for inlet integration, and inner sleeves (Pipe-Seal, RedEx) for damaged area repair. Used for localized pipe defects rather than full-length rehabilitation.
• Robotertechnik (DS Roboter) Robot technology system for professional sewer rehabilitation including KA-TE robots for milling, filling, and repairing damage in nominal diameters DN 150 to DN 800. Includes self-propelled hydraulic and electric carriers controlled via video camera for crack, offset, hole, and root ingrowth repair.
• Rohrrelining Pipe relining method per DVGW Worksheet GW 320-1 including pipe string relining, long pipe relining, and short pipe relining for gas, water, wastewater, and industrial pipelines across nearly all damage types.
• Schacht- und Bauwerksanierung Manhole and structural rehabilitation for concrete and masonry structures including mineral building materials, manual GRP lining, manhole liner (seamless GFK hose with UV light chain curing), and SpectraShield coating process. Targets shaft structures up to DN 2000.
• UV-Liner Light-curing multilayer GFK pipe liner with UV technology, suitable for round, angular, or ovoid profiles from DN 150 to DN 1900 with wall thicknesses 3.0 to 29.6 mm. UV-initiated curing monitored by TV camera enables same-day return to operation after leak testing.
• Zementmörtelauskleidung Cement mortar lining for drinking water pipes per DVGW Code of Practice W 343, suitable for nominal diameters DN 80 to DN 3000 in steel, grey cast iron, or ductile cast iron. Mortar sets within 24-26 hours for rapid pipe section return to service.

Quantifiable outcome

• Pipe rehabilitation completed within 1-2 days for many projects depending on length and diameter
• +3 more outcomes

Named customers21 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Two partnerships are on record, tiered major and core.

• DIRINGER & SCHEIDEL AUSTRIA GmbHmajorStrategic or Co-development Partner · 17 August 2023Newly founded subsidiary established in August 2023 through acquisition of pressure pipe and sewer rehabilitation division of RTi Austria GmbH. Expands D&S Rohrsanierung's presence into the Austrian market.
• Compact Pipe System ManufacturercoreStrategic or Co-development PartnerJoint development partner for the CP-ZA 2012 hat profile, a supplementary system for Compact Pipe rehabilitation. Combines D&S Rohrsanierung's application expertise with manufacturer's pipe system technology.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Others

• Hammelmann GmbH: German manufacturer of high-pressure water jetting systems used for pipe cleaning, descaling, and surface preparation in rehabilitation projects. Adjacent equipment supplier to the trenchless rehab industry rather than a direct services competitor.
• Wavin (Orbia): Global plastic pipe systems manufacturer and rehabilitation solutions provider, partnered with D&S Druckrohrtechnik on IKT-certified Class-A-liner testing. Functions as both a pipe supplier collaborator and partial competitor in trenchless pressure pipe solutions.
• Trelleborg Pipe Seals: Global pipe seal and rehabilitation component supplier, providing EPDM sleeves and seals used in trenchless rehabilitation methods. Functions as an adjacent technology/enabler in the same value chain rather than a direct service competitor.

Direct peers

• RS Technik AG: Swiss-headquartered trenchless pipe rehabilitation specialist active across Europe. Offers UV-cure CIPP, GRP liners, and robotic systems for sewer and pressure pipe renewal, making it a direct technological and geographic peer to D&S Rohrsanierung.
• Swietelsky-Faber GmbH: Austrian-German trenchless pipe rehabilitation specialist offering CIPP, close-fit lining, and robot technology for sewer, water, and gas networks. Most direct comparable in the DACH region with overlapping customer base in municipalities and industrial operators.
• I.S.T. GmbH (WEKO Group): German trenchless rehabilitation specialist offering CIPP, partial rehab, and robot-assisted methods to municipal and industrial clients. Direct peer in the German trenchless market with comparable process technology and customer overlap.
• Hanseatisches Schlauchlining (Aarsleff Germany): German subsidiary of Per Aarsleff providing CIPP and trenchless sewer rehabilitation to municipal and industrial customers. Direct competitor in the German market with comparable DVGW-compliant methods and similar municipal focus.

Broad incumbents

• Per Aarsleff Holding A/S: Danish parent of Aarsleff Germany, one of the largest European trenchless pipe rehabilitation groups. Operates broadly across multiple countries and method categories, serving as a wider-portfolio incumbent competing for the same municipal framework agreements.
• Aegion Corporation (Insituform): Global leader in CIPP technology and trenchless pipeline rehabilitation through its Insituform brand. Operates worldwide across water, sewer, and industrial pipelines, competing with D&S for large-scale municipal and industrial contracts.

Regional players

• Karl Weiss Group: German pipeline construction specialist with rehabilitation capabilities, primarily serving German municipal and industrial gas/water infrastructure. Provides both open-cut and trenchless methods, offering partial overlap with D&S's trenchless focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCasXUXu0tYn8vZST5bvMQSA
• Facebookfacebook.com/diringerundscheidel
• LinkedInde.linkedin.com/company/diringer-und-scheidel-unternehmensgruppe
• Instagraminstagram.com/diringerundscheidel/?hl=de

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries3 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 Diringer & Scheidel Unternehmensgruppe