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Baden-Württemberg

An established specialist company for heating and plumbing systems

A well-established specialty business in heating and plumbing technology, with a strong regional market position, is for sale. The company operates in an economically attractive catchment area and serves a broadly diversified customer base consisting of residential customers, property management companies, and industrial and commercial clients. A key component of the business model is the service, maintenance, and repair division, which generates a high proportion of recurring and predictable revenue. This core business is complemented by residential construction and private client projects, as well as select services for industrial and commercial clients. Day-to-day operations are clearly structured and largely standardized. The organization has a well-coordinated staff and management structure, including a technical management team. Dependence on individual personnel is limited, meaning the company is well-positioned for a takeover and continued operation. The company has direct relationships with established manufacturers and specialty wholesalers in the heating and plumbing industry that have developed over many years. These relationships ensure reliable material availability, short delivery times, and consistently high quality in service, maintenance, and project work. The diversified supplier structure enables flexible and economically stable operations without dependence on individual suppliers.

Revenue
1,950,000 €
Earnings
179,000 €
Employees
6
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Baden-Württemberg

An established energy service provider specializing in the optimization of electricity and natural gas contracts

An established, digitally focused energy service provider is for sale; the company helps residential and commercial customers continuously optimize their electricity and natural gas contracts. The company offers a convenient full-service solution: existing energy contracts are regularly reviewed, rates are evaluated, and the company assists customers in switching to providers offering better terms. The service is free for end customers; revenue is generated through commissions from energy suppliers. The business model is characterized by a growing customer base, long-term customer relationships, and recurring revenue. Thanks to digitized workflows, a modern CRM and process management system, and automated processing and switching procedures, the company can be operated with a very lean cost structure and scaled efficiently. Operational overhead is low, the organizational structure is straightforward, and the transition to a new owner is expected to be straightforward. Particularly attractive are the foundations already in place for further growth: a digitized application workflow, automated process control, AI-powered telephony, a modernized brand identity, and a scalable approach to digital customer acquisition. Additional growth potential exists, in particular, in the expansion of sales partnerships, active tariff-switching management, marketing, and upselling and cross-selling offerings. The company is particularly well-suited for strategic buyers, energy and service companies, sales organizations, or entrepreneurial investors who wish to acquire a profitable, digital business model with recurring revenue and clear opportunities for scaling.

Revenue
268,000 €
Earnings
215,000 €
Employees
3
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Rhineland-Palatinate

Highly profitable full-service provider of sustainable energy and utility technologies

Our client, a highly qualified and crisis-proof master craftsman’s business, stands out as an integrated systems provider for utility infrastructure in the fields of heating, ventilation, and air conditioning, as well as photovoltaics, renewable energy, heat pumps, measurement and control technology, and electrical engineering—including charging infrastructure. For over 30 years, “saubere” GmbH has stood for technical expertise and innovation, as well as high quality in the planning, execution, and monitoring of building services systems—for municipalities, regional energy providers, hospitals, commercial clients, and private customers. Its cross-disciplinary expertise enables turnkey solutions from a single source. Significant future potential stems from, among other things, - expert status—particularly for complex projects, - growing demand in the smart home and renewable energy sectors - a smart staffing structure. Order processing is handled by three self-sufficient teams that operate completely independently and could be managed by the existing second-level management (ppa.). This would also make our client an ideal complement to HVAC companies with growth prospects or corporate groups. The sale is taking place as part of a planned succession due to the owner’s retirement. Upon request, the owner is available to facilitate a structured, professional transition phase. Key Highlights: Very strong revenue and earnings performance: - Proven and forward-looking range of services with stable demand and a clear value chain - Low dependence on fluctuations in the private construction sector - Particularly successful in public tenders - Recurring revenue from service and maintenance work as well as follow-up orders ensures predictable capacity utilization Stable foundation: - Excellent workforce, a qualified, well-coordinated team with extensive expertise; already 4 apprentices for 2026 ! - Per-employee revenue is double that of other companies of comparable size - Large existing customer base—including repeat clients - Very high brand recognition + long-standing market presence with high market penetration as a long-established and reliable trade business with high quality and workmanship standards = 1 of 3 providers for municipal PV contracts - Very strong equity base High growth potential: - Comprehensive and broad service portfolio = ranging from individual HVAC and measurement/control systems to complete building services engineering—thereby ensuring stability over the long term despite economic fluctuations - A company perfectly positioned for the energy transition and the future ESG market - With its own measurement and control department in the high-margin segment of smart building automation (Smart Building ) Scalability and growth potential: - 1 company – 2 brands - A broad and robust scope of services, including high potential – thereby setting the company apart from many competitors

Revenue
3,623,000 €
Earnings
768,900 €
Employees
13
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Hamburg

Gas and Plumbing Systems, Heating, and Roofing - Customer Service for Property Management

This small but highly experienced company specializing in customer service, gas and plumbing systems, and heating technology has been providing reliable services to property management firms, commercial customers, and private households for many years. With long-standing customer relationships and a solid reputation, it presents an attractive opportunity for young master craftsmen or other plumbing companies looking to expand their portfolio or enter the market. The company is distinguished by an established customer base built on stable, long-standing relationships. It possesses a high level of technical expertise and enjoys a good reputation in the region. Currently, the company consists solely of the owner, who is open to a handover. This enables a seamless transition and a straightforward takeover of the existing business, including all equipment and the leased premises (workshop and office). // Service Portfolio: +Plumbing (customer service) +Gas systems +Heating systems +Roofing // The future buyer will benefit from an innovative company with growth potential and: +high customer satisfaction and a strong referral-based business +a long-standing and financially robust customer base in both the commercial and residential sectors +existing maintenance contracts +a network of existing partners. // For potential buyers, this presents an opportunity to take over an established business with a stable customer base.

Revenue
314,000 €
Earnings
141,000 €
Employees
1
View listing

How to use the DUB marketplace to find the right company to buy

Once you have specified your search, matching results appear on the right. Click a listing's headline to go to the company's detail page, where key facts about the business are listed. If a listing interests you and you would like more information, you can contact the seller directly through the DUB messaging system. This is an ANONYMOUS and SECURE exchange between you and the seller — no information is shared with DUB. To use our anonymous messaging system, you need to be registered and logged in on the DUB portal, which is free. Please use the "Contact" button on the listing's page to get in touch.

If your search doesn't return matching companies, you can save your search for free and get notified by email whenever new sale offers appear. Alternatively, you can present yourself to company sellers by creating an investor profile and posting a buying mandate. If you need expert advice on buying a company, you can find a suitable advisor in our advisor directory who can support you through your transaction. Make the most of the many options and wide reach of the DUB marketplace to find the right company to buy. For regional searches, either use the filters or find companies in specific regions via our Succession in Germany page.

Buying a company vs. buying a firm

Buying a company means acquiring an independent organizational unit that regularly carries out an economic activity. A company can consist of one or several business operations. An individual can also found such an independent unit if they regularly carry out an economic activity — in that case it is called a sole proprietorship. As a rule, sole proprietors don't have to register in the commercial register; without that registration, they don't legally count as a "firm." A trade name, colloquially a "firm," is the name under which a company or sole proprietor appears publicly and conducts its business. Buying "a firm" therefore technically means acquiring the company's name or trading name. In everyday use, though, it's used interchangeably with buying a company — i.e. acquiring the entire business.