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North Rhine-Westphalia

Building-Integrated Photovoltaics for Energy and Roofing Systems

The company develops and markets a patented, building-integrated, complete hybrid roofing system that combines photovoltaics, solar thermal, roofing, and insulation into a single system. It completely replaces conventional roofs and enables particularly efficient use of the entire roof area. Key features: • High energy efficiency through combined electricity and heat generation • Integrated module cooling • Walkable, maintenance-friendly design • Insulation eligible for subsidies • Short installation times The technology is suitable for residential and commercial buildings, energy-efficient retrofits, and new construction projects in various international markets. Structure An experienced team specializing in solar technology, product development, operations, and international sales is currently being assembled. Outlook The target market in Europe and North America comprises over 600 million m² of roof area annually in new construction and retrofits. Regulatory requirements, incentive programs, and rising energy prices are driving strong growth in demand for integrated PV solutions. The revenue potential is high; the plan calls for significant scaling through product sales, licensing, and services. Objective The company is seeking investors to support its planned expansion. The goal is to establish a scalable market presence based on its patented technology.

Revenue
500,000 €
Earnings
No information
Employees
No information
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Saxony

Plant Engineering Company: Rapidly Growing and Innovative

Legal Structure GmbH Industry Plant engineering; rapidly growing, innovative company Location Saxony Business Activities Machinery and plant engineering Machining and processing of metals, plastics, and composite materials Specialized provider of electroplating, water treatment, and environmental technology with a long-standing market presence and a strong technical reputation. The company serves a stable industrial sector with a constant need for investment in process and environmental technology. From planning and design through to manufacturing, the company offers complete plant solutions from a single source. The combination of engineering expertise, vertical integration, and a service-oriented approach ensures high customer loyalty. Through solutions in water treatment, exhaust air purification, and energy-efficient plant technology, the company benefits from regulatory trends toward sustainability, resource efficiency, and the circular economy. History Founded in 2009 as a GbR (civil law partnership), the company was reorganized into a GmbH (limited liability company) in 2012 due to its great success. Assets Entire business operations, including inventory and two properties. Growth Potential On the one hand, the potential lies in attractive growth opportunities within a stable, technologically sophisticated niche market. Significant growth potential stems from the expansion of the service and after-sales business, particularly through additional maintenance, modernization, and retrofitting of existing systems, which can generate recurring revenue. On the other hand, the growing importance of sustainability and environmental technology ensures additional potential in the area of energy-efficient, resource-conserving plant technology. Further growth drivers lie in potential geographic and industry-specific expansion—for example, into new industrial sectors such as medical technology or renewable energy—as well as in the digitization of control systems for existing plants. Staff 10–20 employees, some of whom are full-time freelancers Customers The company’s core customers primarily include established corporations in the aerospace, surface technology, electrical engineering, automation, and many other sectors. Reason for Sale Business reorientation Company Figures 2024: Revenue €4.06 million EBIT: €413.3k Terms of Sale Enterprise value: €2,412,717 Plus commercial real estate: €2,100,000 €4,510,000 (including real estate)

Revenue
4,060,000 €
Earnings
413,300 €
Employees
20
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Berlin

Fully Automatic Premium Grow Box - Hardware Startup, Ready for Mass Production, Patented

A Berlin-based hardware startup specializing in automated indoor home growing is seeking a buyer to acquire the company or its assets. The product is a fully automated, design-oriented premium grow box for sustainable home cultivation. Its development spanned over 24,000 hours and 14 generations of prototypes. The hardware is ready for mass production: custom motherboard (2-layer PCB, 300+ components, EMC-tested/CE-compliant), proprietary LED modules with an optimized spectrum, camera-based plant height detection, and an accompanying app with backend. The firmware is 95% complete, and the hardware is 100% complete. IP portfolio: Patent and utility model (valid in Germany) for the method of automatic plant care. Trademark protection as a European Union trademark, as well as in Switzerland and the United Kingdom. Additional Assets: Finalized BOM with an established network of manufacturers, 9 units produced (as good as new, ready for shipment), fully functional online store. Technically validated with an average yield of 70g per cycle. Two founders (50% each), no external investors, no outstanding liabilities. Investment to date: approx. €100,000 in equity, supplemented by WIPANO and IBB grants. Reason for sale: liquidity crunch, recouping investments, career reorientation. Open to an asset deal or share deal. Planned retail price of the product: €3,500.

Revenue
No information
Earnings
No information
Employees
No information
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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.