Bolster Investment Partners

Bolster Investment Partners is a private equity firm based in Amsterdam, Netherlands, founded in 1982. It specializes in long-term investments, primarily focusing on minority interests in exceptional Dutch companies. Bolster seeks to invest in firms across various sectors, including manufacturing, services, and trading, emphasizing those with a clear focus and proven business models.

Joost Bakhuizen

Managing Partner and Partner

Nieck Boeding

Senior Investment Manager

Tymian Clay

Associate

Martijn Fakkert

Investment Manager

Wendela Huber

Investment Manager

Robbert van Kampen

Investment Director

Hanneke Modderman

Investment Director

Rosa Neuberg

Associate

Mark van Rijn

Chief Investment Officer and Managing Partner

Joost van der Sluis

Investment Director

Eric Tijssen

Associate

Michiel van Wissen

CFO and Partner

31 past transactions

WriteSea

Pre Seed Round in 2022
WriteSea is a technology company that provides AI-powered career tools aimed at enhancing job search outcomes for individuals and organizations. The platform facilitates the job search process by helping users identify opportunities that align with their skills and values. In addition to its career services, WriteSea develops SaaS-based technology that streamlines operations for writing and coaching businesses. This all-in-one customer relationship management software simplifies various tasks, including handling forms, contracts, document revisions, email marketing, and appointment scheduling. By integrating these functions into a single tool, WriteSea enables professional writers and coaches to collaborate more effectively, optimize internal processes, and enhance communication within their organizations.

BTG Positioning Systems

Private Equity Round in 2021
BTG Positioning Systems supplies weather measurement and positioning systems for the automated port.

Optima Cycles

Private Equity Round in 2021
Optima Cycles is a manufacturer based in Beverwijk, Netherlands, focusing on the design, production, and distribution of e-bikes, e-cargo bikes, and children's balance bikes. The company prides itself on its in-house manufacturing and assembly processes, allowing for high-quality and efficient bike production. Optima Cycles aims to meet the growing demand for electric mobility solutions, catering to both individual consumers and families.

Public Search

Private Equity Round in 2021
Public Search is a recruitment service provider that specializes in connecting financial professionals with clients across various sectors, including healthcare, education, and municipalities. The company focuses on mediating specialists for both temporary and permanent vacancies, facilitating opportunities for freelancers and consultants to secure roles in finance. By streamlining the job search process for candidates and assisting clients in recruiting qualified professionals, Public Search aims to enhance the hiring experience and ensure that placements align with the values and needs of its clients.

Dinnissen

Private Equity Round in 2021
Dinnissen is a process technology of powders, particles, and granules. It is a machine specialist for the compound feed industry. It is an optimize, innovate and automate the entire process with customized solutions, all developed, manufactured, and tested in-house. It is specialized in mechanical conveying, feeders, packaging, and bagging.

Infoplaza

Private Equity Round in 2020
Infoplaza B.V., founded in 2008 and headquartered in Houten, the Netherlands, specializes in providing weather, traffic, and public transport information to a diverse clientele that includes media companies, governments, consumers, and various industries. The company delivers meteorological data and analysis through user-friendly platforms such as Weerplaza and Buienalarm, catering primarily to consumers in the Netherlands and Belgium. Additionally, Infoplaza offers customized solutions for industries like oil and gas, construction, public transport, and events. The company collaborates with several media partners, including DPG Media and Telegraaf Media Groep, to enhance its service offerings.

Mark Climate Technology

Acquisition in 2020
Mark Climate Technology is a manufacturer of climate control equipment, specializing in the development and production of a diverse range of products designed for temperature and air management in industrial and utility buildings. Founded in 1945 and headquartered in Veendam, the Netherlands, the company serves clients across several European countries, including Germany, Belgium, Ireland, Poland, and Romania. Its product offerings include air heaters, radiant heaters, ventilation and recirculation equipment, air handling units, exhaust systems, and various control devices such as thermostats and time switches, as well as hydraulic bending machines. Mark Climate Technology is committed to providing effective climate solutions tailored to the needs of its customers.

Mark Climate Technology

Private Equity Round in 2020
Mark Climate Technology is a manufacturer of climate control equipment, specializing in the development and production of a diverse range of products designed for temperature and air management in industrial and utility buildings. Founded in 1945 and headquartered in Veendam, the Netherlands, the company serves clients across several European countries, including Germany, Belgium, Ireland, Poland, and Romania. Its product offerings include air heaters, radiant heaters, ventilation and recirculation equipment, air handling units, exhaust systems, and various control devices such as thermostats and time switches, as well as hydraulic bending machines. Mark Climate Technology is committed to providing effective climate solutions tailored to the needs of its customers.

Oceanwide Expeditions

Private Equity Round in 2020
Oceanwide Expeditions B.V. is a Netherlands-based company founded in 1993 that specializes in ship-based exploratory tourism in the polar regions, specifically the Arctic and Antarctica. The company provides small-scale adventure expeditions through its fleet of ice-strengthened vessels, offering unique cruise services that emphasize wildlife observation, active participation in various activities, and a commitment to ecological sustainability and preservation. With a focus on delivering immersive experiences, Oceanwide Expeditions aims to facilitate remarkable journeys to remote islands while prioritizing environmental stewardship.

Giesen Coffee Roasters

Private Equity Round in 2019
Giesen Coffee Roasters B.V. is a manufacturer of high-quality coffee roasters based in Ulft, the Netherlands. Established in 2006, the company specializes in producing a range of equipment for shops, roasteries, and industrial applications. Its product lineup includes professional coffee roasters, along with accessories such as destoners, green coffee conveyors, external cyclones, SFE filters, and afterburners. Giesen Coffee Roasters is committed to delivering top-tier roasting solutions, ensuring that their equipment meets the diverse needs of the coffee industry. Additionally, the company offers second-hand roasters, catering to a variety of customer requirements.

Careflex Zorg Groep

Private Equity Round in 2018
Careflex Zorg Groep is a care service provider based in Breda, Netherlands, specializing in subcontractor services within the sectors of disabled care, youth care, and mental health care. Founded in 2017, the company focuses on delivering complex care solutions by offering healthcare professionals to support the needs of patients, including those requiring elder and disabled care. Through its services, Careflex Zorg Groep aims to enhance the quality of care and improve the work experience for healthcare employees, ensuring that both patients and staff receive meaningful support.

Esschert Design

Private Equity Round in 2018
Esschert Design is a designer and manufacturer specializing in gardening and decorative products, with a particular focus on items that enhance outdoor experiences. The company offers a diverse range of products, including nest boxes, birdhouses, fire pits, pots, vases, and garden furniture. These products are distributed through various sales channels, including garden centers, DIY stores, online retailers, and gift shops, enabling merchants to provide their customers with a tailored shopping experience. Esschert Design emphasizes the connection between nature and outdoor living, catering to consumers' interests in gardening and wildlife.

Jansens & Dieperink

Private Equity Round in 2017
Jansens & Dieperink B.V., founded in 1945 and based in Zaandam, the Netherlands, specializes in the engineering, fabrication, and site assembly of aluminum and stainless steel constructions. The company is known for manufacturing large silos, tanks, gravity blenders, and towers primarily for the petrochemical and polymer industries. With a focus on delivering durable and safe products, Jansens & Dieperink provides a range of offerings, including bolted silos and dry bulk containers, ensuring that clients receive high-quality solutions at competitive costs.

Adomex International

Private Equity Round in 2016
Adomex International B.V. is a Dutch company specializing in the import and export of decorative greenery, catering to customers in the Netherlands and internationally. Founded in 1977 and headquartered in Uithoorn, the company offers a diverse product line that includes green basics, grasses, mosses, colored decoration greens, and seasonal items such as Christmas greens. Additionally, Adomex provides various plants, including leatherleaf ferns, phoenix roebelinii, aspidistra, and salal. The company services a wide range of clients, from wholesale distributors to large export firms and flower shops, ensuring they can deliver products in the required quantities and packaging. Adomex International is committed to exploring new products and innovations in the floral industry, focusing on providing quality greenery at competitive prices. The company utilizes multiple transport methods, including road, air, and maritime, to maintain the freshness of its offerings.

Market Food Group

Private Equity Round in 2016
Market Food Group B.V. is a Dutch company specializing in the production and distribution of a variety of bread and pastry products. Founded in 1979 and based in Bunschoten-Spakenburg, the company operates two production facilities: a semi-industrial bakery and an organic bakery. The semi-industrial bakery focuses on baking bread and cookies, while the organic bakery offers a selection of organic breads, including small and large loaves, filled loaves, and teff bread. Market Food Group emphasizes the use of organic, sustainable, and sugar-free ingredients, catering to retail, food service, and export customers. The company also provides options for organic and vegan customization, allowing consumers to choose from a diverse range of artisan and healthy baked goods under various brands.

Trophy Assets Holding

Private Equity Round in 2016
Trophy Assets Holding designs and sells sports awards and trophies. Its customers include wholesalers, online and offline sports stores, and event organizations.

Exclusive Networks

Private Equity Round in 2014
Exclusive Networks, a global value-added distributor, specializes in accelerating the growth of innovative cybersecurity and cloud computing technologies. With a presence in over 100 countries and more than 60 offices across five continents, the company offers a comprehensive range of services, including managed security services, infrastructure as a service, subscription services, and financial services. Exclusive Networks' distinctive distribution model provides partners with additional opportunities to meet evolving customer needs, supporting organizations in building trust in the digital world.

Quint Wellington Redwood Group

Venture Round in 2013
Quint Wellington Redwood is an independent management consulting firm that specializes in addressing IT-related organizational challenges. The firm offers a range of consulting services focused on IT strategy, innovation, and governance. This includes cloud computing solutions, assessments of data center and infrastructure operations, benchmarking, employee training, and business information management. By connecting people, processes, technology, and leadership, Quint supports organizations in designing and operationalizing their digital transformation initiatives.

Holonite

Private Equity Round in 2012
Holonite is a manufacturer specializing in cast composite stone products, including lintels, window sills, and wall claddings, which are utilized in both new construction and renovation projects. The company has expanded its product offerings to include outdoor items such as swimming pool edging, plant containers, and benches. Holonite's composite stone is composed of a blend of mineral materials bound together with polyester resin, resulting in structures that are durable, waterproof, low-maintenance, and resistant to frost and alkali. This innovative approach to building materials positions Holonite as a key player in the construction industry.

Operator Group Delft

Private Equity Round in 2012
OGD provides ICT services in the fields of infrastructure, end-user management, and software development. They provide outsourcing, projects, advice, and ICT professionals. They provides services for ICT professionals, ICT solutions, outsource IT, ICT training and ICT advice.

Oxbo International Corporation

Private Equity Round in 2011
We design, manufacture, and distribute innovative harvesting equipment and related products for the application, berry, citrus, coffee, field corn, forage, fresh market vegetable, jatropha, olives, processed vegetable, seed, and vineyard markets.

Marfo

Private Equity Round in 2011
Marfo is a culinary company that specializes in providing customized meal solutions and food services across various sectors, including airlines, healthcare, retail, and military. The company focuses on the preparation of fresh frozen meals and meal components, ensuring high standards of food safety and consistent quality. By catering to diverse market segments such as travel, healthcare, retail, and food service, Marfo allows customers to enjoy convenient meal options at home, at work, while traveling, and in care institutions.

Gerco Brandpreventie

Private Equity Round in 2010
Gerco Brandpreventie N.V. is a company based in Schoonhoven, Netherlands, specializing in fireproof compartmentalization of buildings. It provides a range of products and services designed to protect individuals from fire and smoke hazards. Through its innovative solutions, Gerco Brandpreventie aims to enhance safety in various environments by effectively managing fire risks and ensuring compliance with safety regulations.

Medsen Apotheek

Private Equity Round in 2009
Medsen Apotheek operates pharmacies in the Netherlands, primarily based in Breda. The company emphasizes personalized healthcare by providing expert advice and dedicating more time to customer needs. Medsen Apotheek enhances accessibility through innovative services, including 24/7 pharmacy operations, online ordering, and automatic reordering of prescriptions. This customer-centric approach allows patients to save time while receiving tailored healthcare solutions.

Dutch Ophthalmic Research Center

Private Equity Round in 2009
D.O.R.C. Dutch Ophthalmic Research Center (International) B.V. a provider of instruments for ophthalmic surgery.

Kraan

Private Equity Round in 2008
crane offers a wide range of software products for the construction industry. They are not only a supplier of software and training but, above all, a partner who thinks with knowledge of construction. They offer direct insight into budgets, costs, invoices, purchase contracts, documents, and additional or less work, whether it concerns a small or large project.

Movares

Private Equity Round in 2006
Movares is a consultancy and engineering firm that specializes in providing solutions for mobility, infrastructure, and transportation systems. The company focuses on addressing capacity, safety, and integration challenges, offering smart advice and designs to enhance project management for clients in the real estate sector. Movares is involved in various areas, including railway track design, road infrastructure, and energy systems, as well as real estate development. Additionally, the firm prepares transportation hubs for future energy efficiency and promotes the transformation of urban areas into car-free living spaces.

Riemersma Leasing

Private Equity Round in 2006
Riemersma Leasing is an automotive leasing service provider.

Visma

Private Equity Round in 1999
Visma is a privately held company that specializes in providing information technology solutions and business software aimed at simplifying and digitizing core processes for both private and public sectors. The company operates through three main divisions: Software SMB, Software Government & Large Accounts, and Business Process Outsourcing. Visma's offerings include cloud enterprise software focused on areas such as accounting, resource planning, payroll, and transaction process outsourcing, including services like debt collection and procurement. By delivering these solutions, Visma enables its clients to enhance operational efficiency and concentrate on activities that generate greater business and social value.

Tecnotion

Private Equity Round in 1999
Tecnotion is an independent manufacturer specializing in the development and production of linear and torque motors for various applications, including flat panel displays, laser printing, semiconductors, and robotics. With nearly 30 years of experience, the company focuses exclusively on direct drive motor technology, offering both catalog and custom motor solutions tailored to meet specific motion requirements. Tecnotion's commitment to quality and innovation enables it to address diverse motion challenges effectively, ensuring optimal performance across multiple industries.

Eternalsun Spire

Eternalsun Spire is a high-tech company focused on developing advanced solar simulation technology for testing photovoltaic (PV) modules and other solar products. The company provides innovative solar simulation systems that enable clients across various industries to accurately assess the performance and reliability of their products. In the solar PV and thermal sectors, Eternalsun Spire's systems are utilized to measure the power and efficiency of solar panels. Additionally, in the chemical industry, their technology is applied to evaluate and enhance the durability of paints and coatings. The bioenergy sector benefits from these systems in research related to algae growth, which has potential applications in the development of cleaner fuels. Eternalsun Spire customizes its solutions to meet the specific needs of its clients, ensuring the delivery of high-quality products that yield precise test results. The company's products are utilized by customers around the globe, furthering advancements in solar technology.
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