interdomus Haustechnik

What interdomus Haustechnik does

interdomus Haustechnik is a German purchasing cooperative network (Verbundgruppe) for Sanitär, Heizung, Klima (SHK) tradespeople, founded in 2010 in Dreieich and operating as part of the MHK Group. The company serves over 1,500 SHK Fachbetriebe (plumbing, heating, air conditioning specialist businesses) across Germany, providing collective purchasing power through 125+ listed suppliers and 20+ wholesalers, financial services via CRONBANK, central invoicing through IHT (Zentralregulierung), training programs, and marketing support. The core proprietary technology is SHK.MARKET, a digital marketplace connecting manufacturers, suppliers, wholesalers, and partner businesses for streamlined procurement, complemented by a real-time bonus tracking system (24/7 Bonusplaner).\n\nThe business operates a platform-plus-modules architecture: the platform layer encompasses Einkauf (purchasing with bonus system), Finanzierung (financing via CRONBANK), and marketing services, while modular offerings include proBAD (bathroom sales concept with digital planning tools and the Wannentür product), proWÄRME (heating sales concept with 10-year function guarantee and photovoltaic insurance), and training programs such as Next Generation Akademie, Badplanungs-Akademie, and Lehrlingscamp. Revenue is generated through three streams: recurring membership/partner fees from SHK Fachbetriebe who join as shareholders (Gesellschafter), transaction-based supplier commissions and volume rebates negotiated through IHT central settlement, and financial services revenue from CRONBANK and insurance partnerships.\n\nGo-to-market is executed through a regional field sales organization with ten territory managers (Gebietsleiter) covering defined geographic regions, supplemented by event-based engagement (Cheftage leadership conference, Powermesse trade shows, Gamechanger events) and digital self-service via SHK.MARKET and the website. The company positions itself as the largest cooperative network for SHK professionals in Germany, addressing member pain points including rising material costs, skilled labor shortages, business succession challenges, and digital transformation needs.

Name

interdomus Haustechnik

Legal name

interdomus Haustechnik GmbH & Co. Sanitär Heizung Klima KG

Website

https://interdomus.de

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

interdomus Haustechnik is a German cooperative network (Verbundgruppe) for SHK (plumbing, heating, air conditioning) tradespeople, serving 1,500+ Fachbetriebe across Germany with collective purchasing, the SHK.MARKET digital marketplace, financing, training, and marketing through the MHK Group ecosystem.

Ownership category

akta.pro rank

Headquarters

HQ city

Dreieich

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Membership/Partnership Fees: SHK Fachbetriebe join as partners/Gesellschafter, contributing to the network's collective purchasing power and paying membership fees to access collective buying advantages, training, marketing support, and other services.
2. Supplier Commissions and Rebates: The network negotiates volume-based pricing with suppliers and wholesalers, earning commissions and volume bonuses. Partners receive rebates based on tiered bonus structures tied to annual purchasing volumes.
3. Financial Services Partnership: Partnership revenue from financial services including customer financing products (CRONBANK), business financing, and insurance offerings for SHK businesses and their customers.

Go-to-market motion3 records

Distribution channels4 records

Marketing channels10 records

Core offering

interdomus Haustechnik is a cooperative network (Verbundgruppe) for SHK (Sanitär, Heizung, Klima) tradespeople in Germany, providing more than 1,500 partner businesses with centralised procurement from 125+ brand manufacturers and 20+ wholesalers, plus training, digital sales tools, financing, marketing support, and the SHK.MARKET digital procurement platform. Founded in 2010 in Dreieich and part of the MHK Group, it operates as GmbH & Co. Sanitär Heizung Klima KG and is one of the largest independent SHK cooperatives in Germany.

Product overview

interdomus Haustechnik operates as a cooperative network (Verbundgruppe) for SHK (Sanitär, Heizung, Klima) specialist businesses in Germany, founded in 2010 in Dreieich on the foundation of MHK Group. The offering is a platform-plus-modules architecture centered on purchasing power and professional development. The core platform provides Einkauf (purchasing with bonus system and Zentralregulierung via IHT), Finanzierung (financing via CRONBANK), and marketing services. Key modules include SHK.MARKET (digital marketplace for ordering), proBAD (bathroom sales concept with digital tools and Wannentür product), and proWÄRME (heating sales concept with 10-year function guarantee). Training offerings span the Next Generation Akademie (entrepreneurship development), Badplanungs-Akademie (bathroom planning certification), Lehrlingscamp (apprentice training), and regular webinars. The network includes over 1500 partners, more than 125 listed suppliers, and over 20 listed wholesalers.

Differentiator

Problem solved

Functional benefit

Brands

• proBAD: Sales concept for bathroom professionals featuring individual building blocks, attractive services, and customer-oriented offerings.
• proWÄRME
• SHK.MARKET
• Next Generation Akademie
• Das Goldene Dreieck

Products and services

• SHK.MARKET Digital Procurement Platform Online B2B platform that gives interdomus partner tradespeople access to more than 1 million SHK (Sanitär, Heizung, Klima) articles from 125+ brand manufacturers and 20+ wholesalers, with a product configurator, electronic price labels, ordering, and delivery management.
• Verbundgruppen-Mitgliedschaft (Cooperative Membership) Core membership product for SHK tradespeople providing access to cooperative procurement benefits, supplier rebates via Zentralregulierung, training, marketing services, and digital tools.
• proBAD Bathroom Sales Concept Modular sales and planning concept that helps SHK partner businesses design, present, and sell bathroom projects to end customers, including the proBAD Wannentür bathtub door sub-module.
• proWÄRME Heating Sales Concept Modular sales concept that supports partner businesses in selling and modernising heating systems, including heat pumps and renewable heating technology, to end customers.
• Next Generation Akademie Training Programme Structured multi-module training and development programme for young SHK entrepreneurs, owners, and prospective successors to prepare them for running an SHK trade business.
• Badplanungs-Akademie Training Programme Specialist training programme covering bathroom planning, design, and sales techniques for partner tradespeople and their staff.
• Lehrlingscamp Apprentice Camp Training camp for SHK apprentices of partner businesses, providing practical and theoretical preparation for the trade.
• Finanzierung & Förderung Service Service module that supports partner businesses and their end customers with consumer financing and government subsidy programmes (e.g. KfW, BAFA) for heating modernisation and bathroom renovation projects.
• Marketing & Vertrieb Service Centralised marketing, branding, and sales support service for partner businesses, including campaign materials, showroom concepts, and lead generation support.
• Zentralregulierung (IHT) Central Settlement Service Central invoicing and settlement service that consolidates partner businesses' purchases across multiple wholesalers into a single invoice and payment, with supplier rebates (Bonuszahlungen) passed back to partners.

Quantifiable outcome

• Over 120 new partner businesses joined in 2025 alone, demonstrating continued network growth despite challenging SHK market conditions.
• +1 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

Feature3 records

Partnerships

21 partnerships are on record, tiered flagship, minor and core.

• Blanke Systems (Iserlohn)flagshipStrategic or Co-development Partner · 22 April 2026Blanke Systems is an owner-managed family company with over 75 years of history, specializing in innovative tile accessory systems and wire-bent parts 'Made in Germany'. Hosted over 40 participants including shareholders, partners, and the interdomus team for the 2026 Cheftage event.
• Powermesse MetzingenminorChannel Partner/ Reseller/ Distributor · 22 January 2026Powermesse is an established trade fair series since 2001, offering SHK professionals and bathroom planners an ideal opportunity to purchase innovative sanitary products directly from manufacturers. Eight interdomus Haustechnik supplier partners exhibited at the 2026 event.
• TaconovaflagshipStrategic or Co-development Partner · 1 January 2026Taconova joined as a new premium partner on January 1, 2026. The company specializes in high-quality system comfort for heating and cooling technology as well as room climate. Their products ensure precise room and water temperature control, resource-efficient and applicable in residential, commercial, industrial, and public buildings.
• J.W. Zander GmbH & Co. KG (Freiburg)coreChannel Partner/ Reseller/ Distributor · 31 July 2025ZANDER is a major wholesale partner now available on SHK.MARKET. The broad SHK assortment can be ordered directly through the digital platform - simple, fast, and centralized.
• CENDAScoreTechnology or Integration · 17 July 2025CENDAS is a digitalization partner based in Bochum developing practical software solutions for tradespeople - from tradespeople for tradespeople. The company supports construction projects in all phases: preparation, execution, and management - simply, efficiently, and oriented to real construction site needs.
• Eisen-Fischer GmbH & Co. KGcoreChannel Partner/ Reseller/ Distributor · 14 July 2025Eisen-Fischer is a medium-sized company with 13 locations in Germany, standing for reliable logistics and partnership-based cooperation with tradespeople for over 150 years. They offer a broad, high-quality assortment and digital delivery strength, now available on SHK.MARKET.
• WegenerminorStrategic or Co-development Partner · 8 May 2025One of four new partners added in May 2025, providing practical solutions for purchasing.
• eLearning Plus (digi professionals GmbH)minorStrategic or Co-development Partner · 8 May 2025eLearning Plus specializes in digital continuing education for companies, offering ready-made e-learning content for apprentices, mandatory training, onboarding systems, and AI-supported knowledge management. One of four new partners added May 2025.
• hallopetraminorStrategic or Co-development Partner · 8 May 2025One of four new partners added in May 2025, providing practical solutions for organization.
• Burschberg ManufakturminorStrategic or Co-development Partner · 8 May 2025One of four new partners added in May 2025, providing exclusive product solutions.
• MHK GroupcoreStrategic or Co-development Partner · 1 January 2010interdomus Haustechnik was founded in 2010 on the strong foundation of the MHK Group. The company operates as a subsidiary/network within the MHK Group ecosystem, leveraging shared services including IHT (central regulation), CRONBANK (financial services), and MHK Corporate Marketing. MHK Group is a major purchasing cooperative for the home improvement and building materials industry.
• IHT (Industrie- und Handels-Treuhand GmbH)coreStrategic or Co-development PartnerIHT is the central settlement provider within the MHK Group. It handles 100% of billing transactions between interdomus partners and contracted suppliers participating in central regulation. IHT manages payment processing, provides unlimited credit insurance (Delkredere), eliminates supplier credit checks for partners, and ensures top creditworthiness with all suppliers.
• CreativLab (Gamechanger Events)coreGTM or Marketing PartnerCreativLab partners with interdomus Haustechnik on the 'Gamechanger' event series for bathroom business development. The events provide practical impulses on AI and intensive exchange at eye level, with 225+ specialist visitors attending 2026 events.
• Deutsche Unternehmer AkademiecoreImplementation/ SI/ Consulting PartnerEducation and training partner offering webinars and individual training programs for interdomus partners.
• GARANTIE DatenbankcoreOthersInsurance provider for heating and photovoltaic systems, offering guarantees for SHK installations.
• INTERNATIONALES RATING CENTRUMminorImplementation/ SI/ Consulting PartnerComprehensive business coaching partner providing accompaniment and support for partner companies.
• HandwerkerimpulsminorImplementation/ SI/ Consulting PartnerBusiness consulting partner for heating systems, offering Klimacoach training and qualification for regional positioning.
• DenkanstösseminorImplementation/ SI/ Consulting PartnerExpert concepts for trades businesses including bathroom sales approaches, service and maintenance concepts, and experience exchange groups for entrepreneurs.
• BENEfit+minorImplementation/ SI/ Consulting PartnerBusiness consulting partner offering savings on payroll taxes for new hires, premium benefit cards with company branding, and AI-powered digital processes for human resources.
• Baddesign Tanja MaierminorStrategic or Co-development PartnerBathroom design expert with 30+ years of experience creating bathrooms with soul. Specializes in individualized design rather than standard solutions.
• KfW (KfW Bankengruppe)coreOthersGermany's largest development bank offering programs for age-appropriate conversion of existing residential buildings. interdomus Förderprofi helps partners advise customers on KfW funding programs.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• MHK Group: Parent/ecosystem of interdomus Haustechnik and a larger purchasing cooperative for the home-improvement and building-materials sector. Direct corporate parent; broader in scope (kitchens, furniture, household) and a natural structural benchmark for interdomus's cooperative economics.
• Zentralverband Sanitär Heizung Klima (ZVSHK): Germany's national SHK trade association representing installers and contractors. Not a purchasing cooperative, but the closest industry-wide umbrella body for SHK trades and a benchmark for how interdomus's partner base engages with broader industry representation.

Direct peers

• Hagebau Handelsgesellschaft: German cooperative for building materials, timber, tiles, and garden trades, with central purchasing and member services. Comparable cooperative structure serving independent specialist trades; broader vertical but similar membership-driven business model.
• Nordwest Handel AG: German trade cooperative that centralizes purchasing and provides marketing, digital, and financing services to independent specialist trades and retailers, including SHK-adjacent segments. Comparable in function (Verbundgruppe) and target customer (independent trades).
• EUROBAUSTOFF: European cooperative of building-materials and DIY specialist retailers, with shared procurement, brand programs, and digital services. Comparable as a cooperative purchasing association serving independent building-trade members, though broader than pure SHK.
• GC Group (Grohe Competence Center): Germany's leading SHK Fachgroßhandel cooperative, serving sanitary, heating, and air-conditioning trades through a wholesale and service network. Operates the closest direct analog to interdomus's Verbundgruppe model for SHK Fachbetriebe.
• G.U.T. Gruppe: Cooperative of building-services and sanitary wholesalers in Germany, pooling procurement and services for independent specialist retailers. Highly comparable to interdomus's collective-purchasing and member-service model in the SHK/building-trades space.
• SHT Haustechnik: Specialist SHK wholesaler and service network (now part of the GC Group ecosystem) offering branded sanitary/heating assortments to tradespeople. Comparable wholesale-plus-services offering for SHK Fachbetriebe in Germany.
• DEHA Elektro Großhandel: German cooperative of electrical wholesalers serving independent electrical trades. Adjacent parallel: same Verbundgruppe model, applied to electrical instead of SHK; useful for benchmarking how cooperative structures perform in trades.

Regional players

• Fachverband SHK Baden-Württemberg: Regional SHK trade association for Baden-Württemberg covering sanitary, heating, and air-conditioning trades. Comparable in customer base (SHK Fachbetriebe) but region-specific; relevant as a regional peer context rather than a direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/interdomusHaustechnik
• LinkedInlinkedin.com/company/interdomus-haustechnik
• Instagraminstagram.com/interdomus

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 interdomus Haustechnik