What Hauff-Technik does

Hauff-Technik GmbH & Co. KG is a German industrial manufacturer founded in 1955 and headquartered in Hermaringen, Baden-Württemberg, specializing in watertight and gastight sealing systems for cable, pipe, and conduit penetrations through building walls and floors. The company's core technology centers on proprietary sealing systems (HSI150/HSI90 cable ducts, KES entry systems, ringraumdichtungen annular seals, MSH multi-utility house entries) operating at pressures up to 2.5 bar, unified under the 'eff2' brand platform representing a standardized combination of effectiveness, speed, and reliability. Production runs from a single consolidated Hermaringen campus (opened 2014, with a 25-meter logistics center added in 2021) supplemented by a workforce of 450+ as of late 2021. The product catalog exceeds 270 SKUs and spans fiber-optic handover systems (G-BOX with QODC connectors), EV charging-station foundations (ULF), offshore-rated fire-protection cable seals (A60-certified P-CABLE Professional), and digital planning tools including BIM/CAD libraries via Cadenas and heat-pump, charging, ETGAR garden, and electrical planning applications.

The company generates revenue predominantly through one-time equipment sales to four primary vertical segments: energy and utility companies (e.g., RWE, Iberdrola, Scottish Power, TenneT/TransnetBW Ultranet), construction companies and builders, telecommunications and fiber-network operators, and e-mobility infrastructure providers. Pricing is quote-based, not publicly disclosed, and currently subject to a 5.3% temporary surcharge effective 2026-05-01 due to procurement-market dynamics. Distribution runs through a two-tier model combining a direct national and international sales force (territory-based Area Sales Managers in Germany, subsidiaries in Switzerland, the UK, India, and China, plus a Singapore sales office) with the Hauff-Partner-Händler authorized-dealer network in the construction and electrical trades. As a wholly-owned subsidiary of the publicly listed German mid-market industrial conglomerate INDUS Holding AG, Hauff-Technik has pursued an active internationalization strategy since the parent was established in its current strategic position, opening or acquiring entities in six countries (Switzerland 2018, UK 2023, Kettler 2024, Sweden via ET AB January 2025, India February 2025, China July 2025) and adding over 60 employees through the Kettler acquisition alone.

Name

Hauff-Technik

Legal name

Hauff-Technik GmbH & Co. KG

Website

https://hauff-technik.de

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

51–100 employees

Short description

Hauff-Technik is a German industrial manufacturer of watertight and gastight sealing systems for cables, pipes, and conduits through building walls, serving energy utilities, construction firms, telecom and fiber operators, and e-mobility infrastructure providers across Europe, Switzerland, the UK, Sweden, India, China, and Singapore.

Ownership category

akta.pro rank

Product category

Building Sealing Systems

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

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

akta.pro secondary industries

Cable Glands, Sealing & Strain-Relief (glands, grommets, seals, cord grips, strain relief) (IMAGAEAI), Pipe Fittings, Couplings & Connectors (IMADALAD), Firestop & Penetration Sealing Materials (IMADAGAL)

Keywords

• Cable penetration systems
• Pipe sealing products
• Building entry solutions
• Fiber optic entry systems
• Construction sealing products

Headquarters

HQ city

Hermaringen

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sealing Products and Systems: Manufacture and sale of cable, pipe, and building penetration sealing systems including HSI systems, ring space seals, and entry solutions
2. Fiber Optic Infrastructure Products: G-BOX system and accessories for FTTH/FTTB fiber optic network expansion
3. E-Mobility Infrastructure: Universal charging station foundations (ULF) and related products for e-mobility charging infrastructure
4. Planning and BIM Services: Digital planning tools, BIM libraries, and technical support services for architects and planners

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Hauff-Technik manufactures and sells sealing systems for cables, pipes, and building entries, including HSI150/HSI90 cable penetration systems, KES150/KES90 cable entry systems, annular space seals (Ringraumdichtungen), multi-utility building entries (Mehrspartenhauseinführung), fiber optic handover systems (G-BOX), and universal charging station foundations (ULF) for electric mobility infrastructure. The company serves construction, utility, telecommunications, and e-mobility sectors with engineered sealing products certified to DVGW, FHRK, and DIN 18533 standards.

Product overview

Hauff-Technik is a German industrial manufacturer specializing in sealing solutions for buildings. The product portfolio centers on cable penetrations, pipe penetrations, and annular sealings for watertight and gastight building entries. Core products include the HSI150/HSI90 cable penetration systems, KES150/KES90 cable entry systems, ringraumdichtungen (annular sealings), and multi-service house entries (MSH). The company also serves the fiber optic (FTTH/FTTB) market with the G-Box system and supports electric mobility with the Universal Ladesäulen Fundament (ULF) charging station foundation. Additional offerings include fire protection products, roof penetrations, wastewater seals, and digital planning/BIM tools. Products are primarily physical industrial sealing components with some associated digital planning software.

Differentiator

Problem solved

Functional benefit

Products and services

• Kabeldurchführungen HSI150/HSI90 System Gas- and watertight cable duct systems for sealing cables and cable protective conduits through building walls and floors, available in various configurations for different pressure ratings (up to 2.5 bar). Sold to construction firms, utilities, and specialized trades.
• Kabeleinführungssystem KES150/KES90 Cable entry systems providing flexible and reliable sealing solutions for cable routing into buildings. Sold to construction firms, utilities, and telecom installers.
• Ringraumdichtungen (Annular Space Seals) Annular space sealings for watertight and gastight connections around pipes and cables penetrating building walls. FHRK-certified. Sold to construction firms, utility operators, and pipeline contractors.
• Rohrdurchführungen (Pipe Penetration Systems) Pipe penetration systems for sealing pipe entries through building walls and foundations, including wastewater penetrations and Andübelmanschette accessories. Sold to construction firms, civil engineering contractors, and wastewater installers.
• Mehrspartenhauseinführung MSH (Multi-Utility Building Entry) Multi-service house entry systems allowing electricity, gas, water, and telecommunications to enter a building through a single sealed entry point. Sold to homebuilders, property developers, and utility installers.
• Bauherrenpakete und Einzelhauseinführungen (Builder Packages and Single-Service Building Entries) Pre-packaged builder packages and single-service building entry solutions for individual utility connections (water, gas, electricity, telecom) in residential and small commercial construction. Sold to homebuilders and property owners.
• G-BOX Glasfaserübergabesystem (Fiber Optic Handover System) Pre-installed fiber optic connection system for new construction areas enabling plug-and-play connectivity for end customers, with pre-terminated cables using waterproof QODC connectors. Sold to broadband providers, telecom operators, fiber network builders, and housing developers.
• Glasfaserhauseinführungen (Fiber Optic Building Entries) and PoP-Stationseinführungen Fiber optic building entry systems and PoP (Point of Presence) station entries for FTTH/FTTB fiber optic network expansion. Sold to telecom operators, broadband providers, and fiber rollout contractors.
• Universelles Ladesäulen Fundament ULF (Universal Charging Station Foundation) Prefabricated foundation solution for electric vehicle charging stations available in three sizes, requiring no curing time and providing immediate readiness for charging station installation. Sold to charging station manufacturers, e-mobility service providers, parking operators, and municipal utilities.
• Hateflex Kunststoffspiralschlauch (Plastic Spiral Hose) Flexible plastic spiral hose for cable protection and guidance in cable entry systems, pressure-tight up to 2.5 bar. Sold to construction firms and electrical installers.
• Brandschutz-Produkte (Fire Protection Products) Fire protection products for cable and pipe penetrations to prevent fire and smoke spread, including A60-certified P-CABLE Professional Offshore and P-LINER Professional Offshore products. Sold to construction firms, offshore operators, and infrastructure developers.
• Dachdurchführungen (Roof Penetrations) Roof penetration systems for weatherproof cable and pipe entries through roof structures. Sold to construction firms, roofing contractors, and solar/PV installers.
• Abwasserdurchführungen (Wastewater Penetrations) Wastewater penetration systems for sealed pipe entries in building foundations, including sewer connections. Sold to construction firms, civil contractors, and plumbing installers.
• Planungstools und BIM-Tool (Planning Tools and BIM) Online planning tools and BIM (Building Information Modeling) CAD integration via Cadenas for product configuration in heat pump planning, charging infrastructure planning, ETGAR garden solutions, and electrical planning. Provided to architects and specialized planners as part of the planning support offering.

Quantifiable outcome

• Over 35% heating cost savings compared to gas heating with heat pumps
• +1 more outcomes

Named customers8 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

Feature7 records

Partnerships

Nine partnerships are on record, tiered strategic and minor.

• Electro Trading ET ABstrategicStrategic or Co-development Partner · 1 January 2025Swedish company acquired January 1, 2025, strengthening international portfolio. Enables expansion into Scandinavian markets.
• American Polywater CorporationstrategicStrategic or Co-development Partner · 14 January 2020Strategic partnership for joint development of mechanical ring space seals. Combined Hauff-Technik's sealing expertise with Polywater's special chemicals. Products received UL approval for conduit mechanical sealant line.
• Academy Passive NetztechnikminorStrategic or Co-development PartnerTechnical education partnership. Hauff-Technik is partner of the Academy in Westeregeln, participating in roadshows and training events for passive network technology.
• VARIO-TECminorImplementation/ SI/ Consulting PartnerNationwide assembly service partner providing installation support for Hauff-Technik products across Germany.
• Hochschule AalenminorStrategic or Co-development PartnerCooperation agreement signed for collaboration in education and research. Part of company's commitment to technical education and development.
• Kettler GmbHstrategicStrategic or Co-development PartnerAcquired medium-sized manufacturer of components and installation fittings for pipeline construction. Employs approximately 60 people. Expands product portfolio and production capabilities.
• FHRK (Fachverband Hauseinführungen für Rohre und Kabel)minorOthersIndustry association for building entries for pipes and cables. Hauff-Technik was instrumental in founding the association to establish uniform technical standards.
• German Datacenter Association (GDA)minorOthersMembership effective July 1, 2024. GDA is one of the most important associations for the data center industry in Germany.
• ZVEH (Zentralverband der Deutschen Elektro- und Informationstechnischen Handwerke)minorOthersE-Mark partner since beginning of 2025. Strengthens commitment for quality, partnership, and innovation in the electrical trade.

Scale indicators6 records

Recent moves14 records

Expansion highlights6 records

Broad incumbents

• Lapp Group: Global market leader in integrated cable and connection solutions, including cable glands and cable entry systems. Overlaps with Hauff in cable accessories for industrial and infrastructure applications but operates at significantly larger scale with broader portfolio.
• Weidmüller: German market leader in electrical connectivity, including cable glands, marking systems, and industrial connectivity solutions. Serves similar industrial and infrastructure customers with a much broader product portfolio spanning cabinet building, power conditioning, and automation.
• nVent (ERICO): Global provider of electrical connection and protection solutions, including cable glands, grounding, and sealing products through its ERICO brand. Overlaps in sealing and penetration products for utility and infrastructure customers at larger scale than Hauff.

Emerging players

• CSD Sealing Systems: European manufacturer of pipe and cable sealing systems including link seals and modular penetrations. Emerging direct competitor with growing presence in European utility and construction markets competing against Hauff's HRD and ringraumdichtungen product lines.

Direct peers

• Pflitsch: German specialist manufacturer of industrial cable glands and cable entry systems with deep expertise in EMC and Ex-rated applications. Competes directly with Hauff in the cable gland and penetration system category across industrial and infrastructure markets.
• Roxtec: Swedish-headquartered manufacturer of cable and pipe sealing systems for buildings, marine, and infrastructure. Roxtec is the most direct global competitor to Hauff-Technik in modular sealing technology, with overlapping product lines in cable transits, pipe penetrations, and certified sealing solutions for harsh environments.
• Cellpack (BBC Cellpack Power Systems): Swiss-headquartered manufacturer of cable accessories, including cable terminations, joints, and sealing systems for medium and high-voltage applications. Overlaps with Hauff in cable penetration and sealing products for utility infrastructure projects.
• Conta-Clip: German manufacturer of electrical connection technology, cable glands, and cable entry systems. Direct peer in cable entry and sealing products serving similar industrial and infrastructure customer segments in DACH and international markets.
• Wiska Hoppmann: German manufacturer of cable glands, junction boxes, and lighting products primarily for shipbuilding and industrial applications. Competes with Hauff in cable entry and sealing products, particularly in marine and offshore certified applications.
• Murrplastik: German manufacturer of cable entry systems, cable glands, and cable protection products for industrial automation and building infrastructure. Direct competitor in cable feed-through systems and grommets with strong presence in German industrial markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/HauffTechnik
• Facebookfacebook.com/pages/Hauff-Technik-GmbH-Co-KG/236478073220148
• LinkedInlinkedin.com/company/hauff-technik
• Instagraminstagram.com/haufftechnik

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries6 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 Hauff-Technik