The best way to buy a company is through DUB.de

An established, owner-managed solar services and engineering firm with a reputation as a pioneer is seeking a buyer as part of a retirement-related succession plan. The company stands out for its comprehensive engineering expertise—ranging from feasibility and site analyses to competitive bidding and grid connection, all the way to precise system sizing. As an end-to-end partner, it manages projects and works closely with installers, grid operators, and government agencies. Clear proposals, transparent cost estimates, and on-time implementation—combined with a strong focus on sustainability through energy-efficient, long-lasting, low-maintenance systems—ensure measurable added value. High demand (currently 15+ qualified inquiries per week), stable margins, and long-standing customer relationships offer excellent growth opportunities. Battery storage—both new installations and retrofits—is a significant growth driver. Further scaling is possible through partnerships, the expansion of consulting services, and process and digital tooling. We are seeking a buyer who will leverage this potential and continue the company’s success story.

The company is a specialized provider of COIL storage systems made from recycled plastic for the steel industry and related sectors. It develops its own product solutions, combining application-specific expertise with a resource-efficient approach to materials. Manufacturing is handled by an established OEM partner, while the company retains in-house expertise in product development and engineering. This gives the company a focused, scalable structure with a clear technological positioning in a specialized market segment.

This is a well-established regional energy technology company with proven expertise in implementing sophisticated photovoltaic systems for industrial and commercial customers. Both the management team and the entire engineering and technical staff are committed to the company for the long term, ensuring that the company’s accumulated technical know-how, project experience, and local networks are fully preserved. The team of highly qualified engineers possesses comprehensive expertise in grid connection and medium-voltage technology, control, protection, and telecontrol systems, as well as in the grid-compliant planning, implementation, commissioning, and certification of complex energy systems in accordance with applicable technical connection regulations.

The company is a renowned provider in the field of timber and civil engineering, specializing in the construction of industrial buildings for commercial, agricultural, and municipal clients. Thanks to its nationwide presence and its own 25,000 m² facility—complete with modern production, warehousing, and office spaces—the company is able to offer sustainable construction and engineering solutions with high logistical efficiency. With a qualified workforce of 28 employees and a two-tier management structure, the company is distinguished by its solid foundation and potential for further growth.

A well-established life sciences company with a focus on biotech for over 20 years. Develops, manufactures, and distributes reagents, laboratory equipment, and kits for molecular and cell biology. Business Model (3 Pillars): - Distribution of branded products (some exclusively in the EU/worldwide) - ODM/OEM: International products for the EU market - In-house production: Made in Germany Key figures: - Revenue: approx. 6 million EUR, debt-free - Approximately 35 employees - 70 distributors in 65 countries Growth: - Expansion into the U.S. planned (currently ~10%) - New markets: APAC, Latin America, India, Africa - ZIM-funded proteomics project, aiming for FDA approval Transaction: - 100% of the shares - Lump-sum payment, no earn-out - 12-month handover period by the seller

The company is a recognized specialist in thermodynamic processes and is distinguished by its comprehensive expertise in the design, installation, and maintenance of state-of-the-art building services, specialized temperature control and conditioning systems for industrial test benches, and innovative large-scale solar thermal systems. With a permanent location in the technologically advanced region of Baden-Württemberg, this medium-sized company—established for over two decades—benefits from both a deep-rooted market presence and a substantial customer base that relies on its reliable and customized systems. Of particular note are the company’s proven processes and system concepts, which contribute significantly to increased energy efficiency and the optimization of operational processes for its customers.

The company distinguishes itself as a medium-sized provider of civil engineering services with a comprehensive portfolio in the execution of complex construction projects. Its expertise encompasses, in particular, engineering, road construction, pipeline construction, track construction, civil engineering, earthworks, and dewatering. The company’s value creation also extends to the field of recycling, where excavated construction materials are processed at its own facilities and reused in new projects. This integrated and comprehensive approach to planning, execution, and sustainable resource use positions the company as a competent and sustainable player in the construction industry.

Dear Successor, Dear Successor Reduce heating costs by up to 25% with the world’s fastest heating efficiency analysis using the Meter, the innovative “fever thermometer” for any heating system, and the Thermal-Hydraulic Optimization, a method for manual, temperature-based hydraulic balancing (Method T). 21 million heating systems in Germany and many more worldwide are waiting for the IoT-based Meter, which uses non-invasive temperature measurements to indicate the efficiency of each heating system via a traffic-light system. The cloud-based service calculates and sends alerts, while the portal displays the measurement data and forms the basis for a comprehensive database of heating operation data. Heating cost savings of up to 25% and a corresponding reduction in emissions have been evaluated in field measurements and confirmed in series operation. The meter is equally suitable for industrial, residential, and office buildings of any size and any type of heat generator (oil, gas, heat pumps, pellets, CHP, district heating, etc.). Target groups include business customers such as installers, energy consultants, chimney sweeps, metering service providers, property managers, and the real estate industry (industrial, residential, administrative, and office properties), as well as private customers. Series production has begun, and the first customers are already using the product.

A successful planning and engineering firm is for sale, specializing in building automation with additional activities in supporting commissioning processes. The company is organized as a GmbH. The company has been in business for about 10 years and has built an excellent reputation and name for itself in its region. It has a broad client base and works on highly attractive projects. The firm offers services across all project phases. The order books are already very well filled for the coming years. The lean team consists of 3 employees, and administrative overhead is very low. The seller will remain available even after the sale, allowing a successor to focus fully on the further expansion of the business.

The company operates a food truck serving organic burgers and also previously operated as a restaurant. Its success is based on close collaboration with regional meat producers and the sustainable management of the entire value chain. The organic free-range beef used comes from animals in the region that are raised outdoors year-round and slaughtered stress-free at their respective farms of origin. As a result, the company stands for transparent process and product quality.

A company specializing in concrete milling technology that offers environmentally friendly solutions for the removal of concrete and asphalt. Key Aspects Expansion of international business through a recently established North American location. Specialized provider offering all key services in the field of concrete removal and hazardous waste disposal from a single source. By focusing on the removal and preparation phases of construction and renovation projects (rather than installing new flooring), the company can develop deeper technical expertise, offer faster turnaround times, and minimize liability risks in subsequent construction phases. A diversified, credit-insured customer base with no dependencies ensures stable revenue and scalable growth. Opportunities Strong growth in the surface remediation sector, driven by stricter environmental regulations for bridge and building renovations. Plans to develop and introduce complementary products and specialized removal methods for new industrial applications. Focus on international markets with aging infrastructure and rising demand for the safe removal of hazardous materials. Growing interest in layer-by-layer removal methods that minimize hazardous waste and enable clean concrete recycling.

The company is a specialized firm with many years of market experience in the design, installation, and maintenance of photovoltaic systems as well as complementary energy technologies. Key services include:  Design, assembly, electrical installation, and commissioning of photovoltaic systems  Maintenance and technical service for existing systems  Customer consulting on funding opportunities The company is distinguished by:  an established position in the regional photovoltaic trade  customer relationships primarily in the residential segment  well-established supplier relationships with renowned manufacturers in the solar industry  a comprehensive range of services covering the entire solar technology value chain Operating regionally in Baden-Württemberg, the company serves a broad customer base of private households, supplemented by clients from the commercial sector. The company’s philosophy is characterized by a clear commitment to quality and fairness toward customers, suppliers, and employees. Of particular note is the professional online presence, which offers significant potential for customer acquisition. Due to insolvency, the company is currently unable to fully process incoming customer inquiries. This presents an opportunity for a buyer to quickly tap into and capitalize on the existing demand potential following an acquisition.