S-Tec

What S-Tec does

S-Tec is a German plant construction company headquartered in Klipphausen, Germany, founded in 2006. It specializes in frame construction, mechanical pre-assembly, and installation services for industrial water and wastewater treatment systems, serving industrial manufacturing clients across Germany and Europe. Since November 2023, S-Tec has operated as a wholly-owned subsidiary of BW Water Pte. Ltd., integrated into the H+E Life Science GmbH operations at BW Water's 2,250 m² state-of-the-art fabrication facility in Klipphausen. The company contributes specialized plant construction and installation capabilities that complement BW Water's proprietary treatment technologies (Hydro-PAQ, Hydro-FIL, UHPRO Brine Positive) and broader water treatment portfolio.

S-Tec's core capabilities center on industrial water treatment infrastructure — it provides systems for clarification, filtration, reverse osmosis, deionization, and various industrial wastewater treatment applications. The facility holds German sector-specific certifications including plastic welding, steel/stainless steel welding (per DIN EN 287-1 and EN ISO 9606-1), and §62 AwSV approval under the German Water Resources Act, plus ISO 9001 quality management certification. These qualifications enable the company to execute water-related plant construction projects in regulated German markets.

S-Tec operates as a project-based (one-time license) enterprise field sales business, supplying industrial clients through BW Water's global distribution network spanning nine locations across Asia, Europe, and the Americas. The company is no longer independently marketed; its offerings are positioned as part of BW Water's broader industrial water treatment portfolio. BW Water itself is subject to a binding agreement to be sold to Industrie De Nora S.p.A. (closing expected 1 July 2026), which would place S-Tec under new ownership.

Name

S-Tec

Legal name

BW Water Pte Ltd

Website

https://stec-anlagenbau.de

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

S-Tec is a German plant construction company founded in 2006 specializing in frame construction, mechanical pre-assembly, and installation services for industrial water and wastewater treatment systems, operating as a wholly-owned subsidiary of BW Water within the H+E Life Science GmbH operations at its Klipphausen fabrication facility.

Ownership category

akta.pro rank

Headquarters

HQ city

Klipphausen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure

Revenue model

1. Industrial Water Treatment Solutions: S-Tec operated as a water treatment technology provider, offering systems for industrial applications. Following acquisition by BW Water, the solutions are now part of BW Water's comprehensive water and wastewater treatment offerings serving municipal and industrial markets globally.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

S-Tec is a German plant construction company offering frame construction, mechanical pre-assembly, and installation services for industrial water treatment and wastewater treatment systems. Following its November 2023 acquisition by BW Water, S-Tec operates as part of BW Water's H+E Life Science GmbH operations, contributing mechanical construction capabilities to industrial and pharmaceutical-grade water treatment projects.

Product overview

S-Tec is a German water treatment technology company that was acquired by BW Water in November 2023 as part of BW Water's expansion into European markets. S-Tec operates within BW Water's portfolio as part of the H+E Life Science GmbH operations at the Klipphausen, Germany facility. The company provides specialized water and wastewater treatment solutions including H+E Pharma® brand products for pharmaceutical industry water treatment and plant services. BW Water is a leading global provider of full-service water and wastewater solutions offering proprietary technologies (Hydro-PAQ™, Hydro-FIL™, UHPRO Brine Positive), comprehensive applications (desalination, ultrapure water, industrial wastewater, biological treatment, waste recovery), and engineering/procurement/construction/fabrication services across nine global locations.

Differentiator

Problem solved

Functional benefit

Brands

• Hydro-PAQ™: Compact integrated clarification system with built-in sludge recirculation that operates at a high rate and incorporates multiple processes such as coagulation, flocculation, settling, and sludge recirculation.
• Hydro-FIL™
• UHPRO Brine Positive
• BioGill Trickling Filter

Products and services

• Industrial Plant Construction Services Frame construction, mechanical pre-assembly, and on-site installation services for industrial water and wastewater treatment plants, delivered to industrial and pharmaceutical clients in Germany and Europe.
• Industrial Water Treatment Systems Water and wastewater treatment systems for industrial customers, delivered through S-Tec's mechanical construction and installation capabilities following its integration into BW Water's H+E Life Science operations.

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• BW Water (Parent Company)coreOthers · 7 November 2023S-Tec was acquired by BW Water along with H+E Pharma in November 2023 as part of BW Water's strategic expansion into the European market. The acquisition brought specialized water treatment capabilities to BW Water's portfolio, with operations integrated into BW Water's German and global operations.

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Evoqua Water Technologies: Evoqua (now part of Xylem) was a broad incumbent in industrial water and wastewater treatment systems and services. Comparable to S-Tec as a larger player delivering industrial water treatment plants across power, semiconductor, and pharmaceutical end-markets.
• Xylem Inc. Xylem is a global water technology company offering pumps, treatment systems, and plant construction across municipal and industrial markets. Comparable to S-Tec as a broad incumbent in water treatment with overlapping industrial water treatment plant capabilities.
• Veolia Water Technologies: Veolia Water Technologies is a global incumbent in water treatment EPC, offering comprehensive municipal and industrial water solutions. Comparable to S-Tec as a much larger established player offering overlapping capabilities in water and wastewater treatment plant construction.

Direct peers

• Aquatech International: Aquatech provides industrial water treatment solutions including process water, wastewater, and reuse/recycle systems across power, oil & gas, and mining. Comparable to S-Tec as both deliver engineered water treatment systems to industrial clients with similar technology stacks including reverse osmosis and deionization.
• IDE Technologies: IDE Technologies is a specialist in water desalination and treatment plant construction, particularly thermal and membrane desalination. Comparable to S-Tec as both deliver engineered industrial water treatment plants with reverse osmosis expertise similar to BW Water's UHPRO Brine Positive technology.
• WABAG Group: WABAG is a global pure-play water treatment EPC company specializing in municipal and industrial water and wastewater treatment plants. Directly comparable to S-Tec as both operate as plant construction/fabrication entities delivering integrated water treatment systems to industrial customers.

Regional players

• Hager + Elsässer: Hager + Elsässer is a German process water and wastewater treatment plant constructor with a long history of industrial plant engineering. Directly comparable to S-Tec as a German-based peer specializing in industrial water treatment plant construction.
• Grünbeck Wasseraufbereitung: Grünbeck is a German water treatment specialist offering industrial and commercial water treatment systems. Comparable to S-Tec as a German regional peer in water treatment technology and plant construction with similar industrial customer focus.
• EnviroChemie GmbH: EnviroChemie is a German specialist in industrial water and wastewater treatment plant construction. Directly comparable to S-Tec as a German-headquartered peer operating in the same industrial water treatment plant construction niche with similar customer base in Germany and Europe.

Others

• Industrie De Nora S.p.A. De Nora is an Italian multinational specializing in electrochemistry and water treatment, and is the announced acquirer of BW Water (S-Tec's parent). Comparable as the future strategic owner of S-Tec with overlapping industrial water treatment capabilities via De Nora's electrode and disinfection businesses.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/s-tec
• Facebookfacebook.com/stecgmbh

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries4 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 S-Tec