STÜWA Group

What STÜWA Group does

STÜWA Group, legally STÜWA Konrad Stükerjürgen GmbH, is a German family-owned manufacturer founded in 1883 and headquartered in Rietberg, North Rhine-Westphalia, specializing in well construction materials, groundwater engineering equipment, and geothermal energy components. Its product portfolio covers the full lifecycle of water-well and geothermal projects: PVC, steel, and PEHD well filters and casing pipes (including the proprietary VEE SHAPE SCREEN and Aqua 23 lines), groundwater monitoring equipment, riser pipes, grouting and sealing materials (STÜWA THERM, STÜWA PRESS, DÄMMER, WETRONIT, DANTONIT), drilling fluid additives (STÜWAMIX, STÜWA-FLOW, STÜWA-CLEAN), well chambers and covers, pumps and pressure tanks, geotechnical sampling tools, and geothermal probes (GeoHeat, GeoThex GHX) with associated heat-transfer fluids (STÜWASOL). Production is exclusively German and climate-neutral, with digital tools (STÜWApedia mobile app, Brunnenkonfigurator) supporting professional specifiers.

The company sells primarily through direct B2B channels to drilling contractors, well construction firms, geothermal installers, municipalities, and civil engineering buyers, with a multilingual website in six languages and an international distributor network supplemented by a warehouse in Poznań, Poland serving Central and Eastern European markets. Pricing is quote-based and project-specific, with no public list pricing. The customer base spans fragmented SMB and mid-market contractors, alongside select enterprise references such as Miele (industrial geothermal installation at Gütersloh). Strategic positioning emphasizes 140+ years of brand heritage, certified German quality (DIN EN ISO 9001, EWS-certified products), climate-neutral manufacturing, and full-portfolio coverage of niche well construction and renewable energy applications.

Ownership remains with the Stükerjürgen family across multiple generations; Ralf Stükerjürgen serves as Managing Partner and Tanja Stükerjürgen joined leadership to secure succession. The company has no external institutional investors, no public listing, and no disclosed revenue, and operates alongside a related entity, Rausch&Rausch, under the family umbrella. Recent strategic activity centers on steel production capacity expansion in Rietberg, EFRE-funded plastics production efficiency improvements, enterprise-scale geothermal reference projects, and ongoing geographic distribution build-out across Europe and select African humanitarian initiatives.

Name

STÜWA Group

Legal name

STÜWA Konrad Stükerjürgen GmbH

Website

https://stuewa.de

Company type

Private

Founded year

1883

Operating status

Operating

Headcount range

1–10 employees

Short description

STÜWA Group is a German family-owned manufacturer founded in 1883 that produces well construction materials, groundwater monitoring equipment, and geothermal energy components, selling directly to drilling contractors, geothermal installers, municipalities, and civil engineering buyers across Europe and international export markets.

Ownership category

akta.pro rank

Product category

Well Construction Materials

NAICS

Plastics Pipe and Pipe Fitting Manufacturing (326122), Pump and Compressor Manufacturing (33391), Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

Steel Pipe & Tubes (3317), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Water & Sewer Pipe & Fittings (PVC/HDPE/PP) (IMANADAA)

akta.pro secondary industries

Pipes & Tubing (Metal, Plastic & Composite) (IMADALAC), Pump, Well & Booster System Service for Irrigation (HSAIAEAI), Pumps & Plumbing Pump Accessories (Sump, Sewage, Booster) (IMADALAL)

Keywords

• Well construction materials
• Groundwater extraction equipment
• Geothermal probe systems
• Drilling fluid additives
• Grouting and sealing materials

Headquarters

HQ city

Rietberg

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment and Materials Sales: STÜWA manufactures and sells a comprehensive range of well construction, groundwater monitoring, geothermal, and geotechnical equipment and materials directly to drilling contractors, installers, and municipalities.
2. Specialty Construction Products: Sale of specialized products including well screens, pumps, pressure tanks, drilling fluids, grouting materials, and well chambers to professional contractors and project developers.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

STÜWA Group manufactures and sells well construction and groundwater technology products, including PVC, steel, and PEHD well filters and casing pipes, groundwater monitoring equipment, riser pipes, grouting materials and sealing clays, drilling fluid additives, well chambers, pumps, and pressure tanks. The portfolio also includes geothermal products (U-shaped and coaxial probes, heat transfer fluids) and geotechnical sampling tools, all produced at its German headquarters in Rietberg.

Product overview

STÜWA Group is a manufacturer of well construction and groundwater technology products, operating as a single unified product portfolio rather than a modular platform. The core offering centers on well construction materials including PVC, steel, and PEHD well filters and casing pipes (Brunnenfilter und Aufsatzrohre), complemented by groundwater monitoring equipment (Grundwasser Messstellen Ausbau), riser pipes (Steigleitungen), grouting materials and sealing clays (Verpressmaterial, Dichtungstone), and drilling fluid additives (Bohrspülungsmittel). Supporting products include well chambers (Brunnenschächte), pumps and pressure tanks (Pumpen & Druckkessel), and geotechnical equipment (Geotechnik). The portfolio extends into renewable energy with geothermal products (Erdwärme) including GeoHeat probes, GeoThex systems, and heat transfer fluids (STÜWASOL). Digital tools include the STÜWApedia mobile app and Brunnenkonfigurator (well configurator). The company emphasizes climate-neutral production made in Germany and serves applications in water supply, flood protection, environmental technology, and renewable energy.

Differentiator

Problem solved

Functional benefit

Brands

• Rausch&Rausch: A related entity operating under the STÜWA umbrella, referenced on the company website alongside the main STÜWA brand.

Products and services

• PVC - Brunnenfilter und Aufsatzrohre PVC well filters and casing pipes for groundwater extraction, including Kiesbelagfilter (gravel-packed filters), VEE SHAPE SCREEN, and Sonderrohre (special pipes), sold to drilling contractors and well builders.
• Stahl - Brunnenfilter und Aufsatzrohre Steel well filters and casing pipes including Schlitzbrückenfilter (bridge-slotted filters) and Wickeldrahtfilter (wire-wound filters), for professional well construction applications.
• PEHD / Aqua23 Brunnenfilter und Aufsatzrohre HDPE well filters and casing pipes including the Aqua 23 Filter product line and LDPE-Ringbundware (coiled LDPE products) for groundwater extraction.
• Grundwasser Messstellen Ausbau Groundwater monitoring and sampling equipment including PVC-ABDI filters, cable light sounding tools, depth measuring devices, street caps, and fire hydrant fittings, sold to municipalities and environmental contractors.
• Steigleitungen Riser pipes for well construction including various materials and Schlauchsteigleitungen (hose riser pipes), for submersible pump installations in wells.
• Verpressmaterial, Dichtungstone, Quarzfilterkies Grouting and sealing materials for well construction including STÜWA THERM 2000 Z, STÜWA THERM HL, STÜWA THERM HL-M, STÜWA PRESS F10, STÜWA PRESS, STÜWA ISO, DÄMMER products, sealing clays (WETRONIT, DANTONIT, DantoPlug), and quartz filter gravel.
• Bohrspülungsmittel Drilling fluid additives including STÜWAMIX, STÜWA-FLOW, STÜWA-CLEAN, Antisol, SODA LEICHT, GS 550, Aktivbentonit IBECO S, and Schwerspat (barite), used by drilling contractors.
• Brunnenschächte Well chambers and well heads including the SBS-System, Schachtabdeckungen (chamber covers), and Thermoisolationshaube (thermal insulation hoods), for well installation and access.
• Pumpen & Druckkessel Pumps and pressure tanks including Kreiselpumpen (centrifugal pumps), C2-Lite CAD, Druckkessel Typ L/H, and water treatment systems for water supply installations.
• Erdwärme (Geothermal) Geothermal products including GeoHeat U-shaped probes, GeoThex GHX coaxial probes, QuickLoop, STÜWASOL L-ECO and N-ECO heat transfer fluids, refractometers, and PEHD distribution shafts DN 400 for ground source heat pump systems.
• Geotechnik Geotechnical products including Liner-Rohre (liner pipes) and Probendosen (sample containers) for soil investigation and sampling applications.
• STÜWApedia Mobile App Free mobile application providing technical information and calculations for well construction and drilling professionals.

Quantifiable outcome

• CO2-neutral production achieved through climate-neutral manufacturing exclusively in Germany.
• +1 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Four partnerships are on record, tiered minor and core.

• Franciscan Sisters of Salzkotten (Franziskaner Schwestern aus Salzkotten)minorStrategic or Co-development Partner · 25 February 2020STÜWA partnered with the German Franciscan Sisters to support a charitable well construction project in Malawi, Africa. The sisters operate St. Francis Catholic Primary School and a kindergarten with 1,580 orphaned children in Madisi. STÜWA provided technical consultation on well construction materials and donated €10,000 to fund 20 wells across surrounding villages. The project uses STÜWA PVC construction materials and solar pumps for sustainability.
• BAU ABC Rostrup (Training Center for Well Construction)minorStrategic or Co-development PartnerSTÜWA hosts well construction apprentices from BAU ABC Rostrup (a leading German training center for drilling professionals) for facility tours and hands-on learning experiences, supporting vocational education in the drilling trade.
• GEOTECcoreStrategic or Co-development PartnerSTÜWA co-organizes the 'Driller Days' industry event with GEOTEC, a premier international gathering for the drilling and geotechnical community. This joint event is described as having achieved record participation and serves as a key industry networking and knowledge exchange platform.
• Interstaff HR-Management GmbHminorChannel Partner/ Reseller/ DistributorSTÜWA partners with Interstaff HR-Management GmbH (based in Rietberg, Germany) for recruitment services. Interstaff handles the recruitment process for certain open positions at STÜWA, including collecting and reviewing applications on behalf of the company.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Pentair: Global water treatment and flow solutions company including pumps and filtration for residential, commercial, and industrial water applications. Comparable in selling pumps, pressure tanks, and water filtration to professional installers, but with broader water-treatment focus rather than well-construction specialization.
• Grundfos: Global Danish pump manufacturer with significant presence in groundwater extraction, well pumps, and pressure boosting. Comparable in pump products for well construction and water supply applications, though operating as a broad incumbent across many pump categories beyond the well niche.
• Xylem: U.S.-listed global water technology company with pumps, treatment, and metering solutions serving municipal and industrial water markets. Comparable in pumps and groundwater equipment serving municipal water customers, though Xylem operates at vastly larger scale across the entire water value chain.
• Uponor: Nordic-based global provider of plastic pipe solutions for water supply, indoor climate, and infrastructure. Comparable in PEHD/PEX pipe manufacturing and geothermal applications (Uponor also supplies ground-source heat pump loops), but at much broader portfolio and international scale.
• Wavin: European leader in plastic pipe systems for water management, heating/cooling, and infrastructure. Comparable in plastic pipe manufacturing and irrigation/water distribution applications, but operates at significantly larger scale with broader construction-industry customer base.

Regional players

• Pipelife: European plastic pipe manufacturer (Wienerberger subsidiary) supplying water, sewage, irrigation, and cable protection across Europe. Comparable in PVC and PE pipe production for water infrastructure, though Pipelife is more focused on municipal/utility-scale piping rather than specialized well construction.

Direct peers

• Franklin Electric: U.S.-based manufacturer of water systems, pumps, motors, and well construction equipment serving drilling contractors and municipalities. Comparable in serving the well construction value chain with pumps and submersible motors, though at much larger scale and broader geographic reach.
• Haka Gerodur: Swiss manufacturer of PEHD geothermal probes and pipe systems for ground-source heat pump installations. Directly comparable to STÜWA's GeoHeat and PEHD well product lines in materials, applications, and European contractor customer base.

Emerging players

• REHAU (Building Solutions): German polymer-based solutions provider for building services including underfloor heating, plumbing, and geothermal ground loops. Comparable in PEHD-based geothermal probe systems and German/European HVAC contractor customer base, with broader construction solutions portfolio.

Others

• Halliburton (Baroid Industrial Drilling Products): Global oilfield services major whose Baroid division supplies drilling fluids, grouts, and wellbore materials. Comparable in drilling fluids and well-construction chemistry (STÜWAMIX, STÜWA-FLOW), but Baroid is an upstream-oil & gas-focused supplier rather than a water/geothermal well specialist.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/stuewa
• LinkedInlinkedin.com/company/st%C3%BCwa-group
• Instagraminstagram.com/stuewa_official

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 STÜWA Group