Reha

What Reha does

Reha GmbH is a German, family-owned manufacturer of custom plastic products for the wastewater, rainwater, and environmental-technology sectors, founded in 1996 by Hermann Hagemann and operated from two sites in Germany — administration in Eppingen (Baden-Württemberg) and production in Brotterode-Trusetal (Thuringia). The company fabricates cylindrical plastic shafts (DN 612–1400 mm), wastewater tanks and collection pits (up to 10 m³ per single unit, cascade-configurable for larger volumes), small wastewater-treatment-plant internals (including retrofit inserts for legacy TGL/DDR pits), rainwater cisterns, pressure-free thermal buffer tanks for solar/PV/waste-heat buffering, and bespoke pipe fittings and apparatus components — all produced in-house from recycled PE-HD/PP, with optional FEM (Finite Element Method) structural verification and MFPA material testing for tank products.

The underlying technology platform is rotational molding and welding of recycled engineering plastics into dimensionally flexible, corrosion-resistant, odor-neutral components; the 30+ years of in-house process know-how is the technical backbone that allows individual dimensions, connection positions, partitions, and built-ins per project. Commercial operations are quote-based and project-driven: pricing is "ab Werk" (ex-works) per AGB, not publicly listed, with packaging and VAT charged separately. The go-to-market combines a four-step consultative sales model (inquiry/consulting → planning/construction → manufacturing → delivery) with OEM supply to the shaft-and-tank industry and bundled distribution of Reha's shafts together with patented STABIFLEX® shaft covers produced by the affiliated firm Reha-TEC GmbH (Eppingen). Customer segments are mixed B2B (OEM shaft/tank industry, municipal utilities, agriculture, industry) and B2C (private households for rainwater and heat storage), all served domestically in Germany.

The company has no disclosed funding, no acquisitions, no public listing, and no evidence of international expansion; growth has historically been organic and incremental through product-line extensions (notably the pressureless heat storage line introduced around 2000) and the deepening of the sister-firm relationship with Reha-TEC for bundled system solutions.

Name

Reha

Legal name

Reha GmbH

Website

https://reha-gmbh.de

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

11–50 employees

Short description

Reha GmbH is a German family-owned manufacturer producing custom plastic shafts, wastewater/rainwater tanks, and thermal buffer storage from recycled PE-HD/PP, serving OEM shaft-and-tank industry customers, municipal/agricultural users, and private households exclusively within Germany.

Ownership category

akta.pro rank

Product category

Plastic Tanks and Shafts Manufacturing

NAICS

Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

Miscellaneous Plastics Products (3080)

akta.pro primary industry

Plumbing & Building Drain/Waste/Vent (DWV) Pipe & Fittings (IMANADAG)

akta.pro secondary industry

Recycled-Content Plastic Packaging (rPET, rHDPE, rPP) (IMALAMAC)

Keywords

• Plastic tank manufacturing
• Wastewater treatment systems
• Rainwater storage solutions
• Custom plastic fabrication
• Plastic shaft components

Headquarters

HQ city

Brotterode

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom plastic product manufacturing (project sales): One-off, made-to-order sales of plastic tanks, shafts, pipe fittings, and special fabrications, priced "ab Werk" (ex-works) per AGB; VAT is added separately and packaging is charged. Order value is determined per project and is not publicly listed.
2. OEM manufacturing for the shaft and tank industry: Supply of plastic shaft and tank components to other industry players as a long-standing OEM partner — components are integrated into the customers' wastewater, rainwater and separation systems.
3. Special/custom fabrication services: Customer-specific engineering and production (Sonderanfertigungen) — including design/construction, FEM static analysis on request, and production from defined recycled or virgin PE-HD/PP. Charged per project.
4. Heat storage tank sales with installation-partner referral: Sale of insulated plastic buffer tanks for solar/PV/waste-heat plus referral/coordination of qualified installation partners for underground placement, generating both product revenue and referral-driven demand.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Reha GmbH manufactures custom plastic (PE-HD/PP, including recycled) tanks, shafts, pipe fittings and special fabrications in-house in Brotterode-Trusetal, Thuringia, for wastewater, rainwater, separation and environmental-technology applications. Products are individually dimensioned and engineered — including FEM static verification on request — and delivered "ab Werk" (ex-works) to OEM customers in the shaft and tank industry as well as to utilities, agriculture, industry and private end-users in Germany. The offering is centered on long-lasting, recyclable plastic components produced from high-quality recycled materials, with bundled delivery of patented STABIFLEX® shaft covers from sister company Reha-TEC GmbH.

Product overview

Reha GmbH operates a single, integrated manufacturing offering of custom plastic (PE-HD/PP, including recycled) products for wastewater, rainwater, and environmental technology, with seven distinct product lines that share the same in-house production, materials, and engineering platform: Kleinkläranlagen (small wastewater treatment plant internals), Abwassertanks (wastewater tanks and collection pits), Kunststoffschächte (cylindrical plastic shafts always delivered with STABIFLEX® covers from sister company Reha-TEC GmbH), Wärmespeicher (thermal buffer storage), Regenwasserspeicher (rainwater storage tanks), Rohrformteile (pipe fittings and apparatus), and Sonderanfertigungen (cross-industry custom fabrications). All lines are produced at the company's facility in Brotterode-Trusetal, Thuringia, with FEM static analysis available on request, and share the company's 30+ years of recycled-plastic processing know-how.

Differentiator

Problem solved

Functional benefit

Products and services

• Kleinkläranlagen (Small wastewater treatment plants / DDR-Gruben) Custom-fabricated plastic internals and inserts for TGL pits (legacy East-German standard septic systems) and multi-chamber small wastewater treatment plants, individually sized in diameter, height, and inlet/outlet positions. FEM static analysis is provided for standard sizes (Ø 1.80 m, 2 m, 2.30 m with 1.5 m cylinder height). Target customers include OEMs, agriculture and private sites without public sewer access.
• Abwassertanks (Wastewater tanks / Sammelgruben)

Quantifiable outcome

• Tank sizes up to 10 m³ per single unit and cascade configurations for larger volumes (e.g., 3,500 L to 50,000 L standard round containers).
• +2 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Reha-TEC GmbH (Eppingen)flagship / core strategic allianceOEM/ Whitelabel/ Licensing PartnerReha-TEC GmbH is Reha GmbH's sister company based in Eppingen, Baden-Württemberg (Sulzfelder Straße 34, 75031 Eppingen). It produces the patented STABIFLEX® System-Schachtaufsätze, which Reha GmbH bundles with its plastic shafts. The two firms are described as closely connected ("eng verbunden"), with Reha-TEC's product integrated into Reha's offering as a system component. The sister firm's dedicated web presence (schachtabdeckung-kunststoff.de) is referenced from Reha's product pages.

Scale indicators6 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• KESSEL AG: German manufacturer of drainage, wastewater, and sewage-lift products including plastic shafts, backwater valves, and separators. Overlaps with Reha's Kunststoffschächte and Abwassertanks product lines serving the same wastewater infrastructure market.
• Roth Werke GmbH: German manufacturer of plastic tanks for rainwater, wastewater, and heat-storage applications, plus heating/cooling systems. Directly comparable to Reha's Wärmespeicher and tank offerings, with similar OEM and installer channel models.
• Otto Graf GmbH (GRAF): German manufacturer of plastic rainwater harvesting tanks, wastewater systems, and related environmental products. Highly comparable to Reha in product category (plastic tanks, shafts, water storage) and customer base (municipal, agricultural, residential), but at significantly larger scale and broader distribution.
• 3P Technik Filtersysteme GmbH: German specialist in rainwater harvesting and filtration components, including plastic filters, shafts, and tank accessories. Comparable to Reha's shaft and rainwater product lines, particularly in residential and small-commercial installations.
• Mall GmbH (REWATEC / Mall GmbH): German maker of plastic rainwater and heat-storage systems (under the REWATEC brand), directly overlapping Reha's Regenwasserspeicher and Wärmespeicher lines. Same target customers and similar material base (PE), making it a direct niche competitor.

Broad incumbents

• Georg Fischer AG: Swiss global leader in plastic and metal piping systems for water and gas distribution. Comparable to Reha's pipe fittings and tank/connector products, but with global scale, extensive certification portfolio, and a much wider product range.
• ACO Ahlmann SE & Co. KG: Large established German player in drainage, wastewater, and surface-water management. Comparable in the shaft and tank sub-segment, but with a much broader product portfolio and international footprint that places it as a broad incumbent rather than a focused niche peer.
• Wavin GmbH: Major European plastic pipe, fittings, and water-management systems provider. Comparable to Reha in the Rohrformteile (pipe fittings) and shaft segments, but operates at significantly larger scale with full international distribution.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

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Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Reha