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

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 focused on connecting financial professionals with clients across various sectors, including healthcare, education, and municipalities. The company specializes in mediating specialists for both temporary and permanent vacancies. By facilitating opportunities for freelancers and consultants, Public Search helps candidates secure professional roles while assisting clients in finding suitable candidates who align with their organizational needs. This dual approach ensures that both job seekers and employers benefit from a streamlined recruitment process.

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, founded in 1945 and based in Veendam, the Netherlands, specializes in manufacturing climate control equipment for industrial and utility buildings. The company produces a diverse range of products, including air heating and radiant heating systems, ventilation and recirculation equipment, air handling units, and hydraulic bending machines. With a significant presence in the Netherlands, Germany, Belgium, Ireland, Poland, and Romania, Mark Climate Technology aims to provide effective climate solutions tailored to meet the needs of its customers.

Mark Climate Technology

Private Equity Round in 2020
Mark Climate Technology, founded in 1945 and based in Veendam, the Netherlands, specializes in manufacturing climate control equipment for industrial and utility buildings. The company produces a diverse range of products, including air heating and radiant heating systems, ventilation and recirculation equipment, air handling units, and hydraulic bending machines. With a significant presence in the Netherlands, Germany, Belgium, Ireland, Poland, and Romania, Mark Climate Technology aims to provide effective climate solutions tailored to meet the needs of its customers.

Oceanwide Expeditions

Private Equity Round in 2020
Oceanwide Expeditions B.V., founded in 1993 and based in Vlissingen, Netherlands, specializes in ship-based exploratory tourism in the Arctic and Antarctica. The company offers expedition cruises aimed at small-scale adventure tourism, focusing on ecological sustainability and preservation. Oceanwide Expeditions operates a fleet of ice-strengthened vessels that provide a variety of shore-based, wildlife-centered, and activity-intensive excursions, allowing travelers to explore remote islands and unique ecosystems. The company emphasizes environmental responsibility while delivering immersive travel experiences in some of the world's most pristine destinations.

Giesen Coffee Roasters

Private Equity Round in 2019
Giesen Coffee Roasters B.V. is a manufacturer of professional coffee roasters designed for shops, roasteries, and industrial applications. Founded in 2006 and headquartered in Ulft, the Netherlands, the company specializes in high-quality coffee roasting equipment, including destoners, green coffee conveyors, external cyclones, SFE filters, and afterburners. Giesen Coffee Roasters also offers second-hand roasters, catering to a diverse range of customer needs. The company aims to provide top-tier products that enhance the coffee roasting experience for its clients.

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 specializes in the design and manufacturing of a diverse range of gardening and decorative products, catering to the needs of garden enthusiasts and outdoor living spaces. Their product lineup includes items such as nest boxes, birdhouses, fire pits, bowls, pots, vases, and garden furniture. Esschert Design distributes these products through various sales channels, including garden centers, DIY stores, online retailers, and gift shops, ensuring that retailers can provide their customers with quality options for enhancing outdoor experiences. The company places a strong emphasis on creating tailored solutions that meet consumer demands in the gardening and outdoor decor markets.

Jansens & Dieperink

Private Equity Round in 2017
Jansens & Dieperink B.V., established in 1945 and located in Zaandam, the Netherlands, specializes in the engineering, fabrication, and site assembly of aluminum and stainless steel constructions. The company primarily serves the petrochemical and polymer industries, producing large silos, tanks, gravity blenders, and towers. With a focus on delivering durable and safe products, Jansens & Dieperink ensures that its offerings, including bolted silos and dry bulk containers, meet the needs of its clients while maintaining acceptable costs.

Adomex International

Private Equity Round in 2016
Adomex International B.V. is a Dutch company that specializes in the import and export of decorative greenery. Established in 1977 and headquartered in Uithoorn, the company offers a diverse product range that includes various types of greenery such as grasses, mosses, leatherleaf ferns, phoenix roebelinii, aspidistra, and salal, along with seasonal products like Christmas greens. Adomex International caters to a wide clientele, including wholesalers, large export companies, and flower shops, providing them with fresh and refrigerated products transported via road, air, and sea. The company is committed to innovation, continuously seeking new products and packaging options to meet the needs of its customers in the flower-growing industry.

Market Food Group

Private Equity Round in 2016
Market Food Group B.V., founded in 1979 and based in Bunschoten-Spakenburg, The Netherlands, specializes in the production and distribution of bread and pastry products. The company operates two production facilities: a semi-industrial bakery that focuses on baking bread and cookies, and an organic bakery that offers a variety 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 vegan and semi-artisan baked products, allowing customers to choose from an array of artisan and healthy bakery options.

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, primarily serving the new-build and renovation markets. The company produces a range of architectural elements, including lintels, window sills, and wall claddings, utilizing a mixture of mineral materials bound by polyester resin. These composite stone products offer advantages such as durability, waterproofing, low maintenance, and resistance to frost and alkali. Recently, Holonite has expanded its offerings to include outdoor products like swimming pool edging, plant containers, and benches, further enhancing its portfolio in the composite stone sector.

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 specializing in customized meal solutions and food services for various sectors, including airlines, healthcare, retail, and military. The company prepares fresh frozen meals and meal components, ensuring food safety and consistent quality. By focusing on tailored offerings, Marfo aims to enhance the dining experience for customers in diverse environments such as homes, workplaces, and care institutions. Their dedicated services cater to the unique needs of each market segment, providing reliable meal options for travelers, patients, and residents alike.

Gerco Brandpreventie

Private Equity Round in 2010
Gerco Brandpreventie N.V., located in Schoonhoven, the Netherlands, specializes in fireproof compartmentalization of buildings. The company focuses on providing products and services designed to protect individuals from the dangers of fire and smoke. Through its expertise, Gerco Brandpreventie aims to enhance safety measures in various structures, ensuring effective fire prevention and management solutions.

Medsen Apotheek

Private Equity Round in 2009
Medsen Apotheek operates a network of pharmacies in the Netherlands, particularly based in Breda. The pharmacies prioritize customer health by providing expert advice and personalized attention, ensuring that each customer receives the care they need. Medsen Apotheek enhances accessibility through innovative services, including 24/7 pharmacy access, online ordering, and the automatic renewal of prescriptions. This approach is designed to save customers time while fostering a supportive environment focused on individual health needs.

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 Dutch engineering consultancy firm specializing in mobility and infrastructure. It offers solutions to capacity, safety, and integration challenges in transportation systems, with a focus on sustainable and future-proof designs. The company's services include railway track and road infrastructure design, energy efficiency solutions for stations, and urban planning to create car-free living areas in city centers. Movares works with real estate organizations to enhance their project management capabilities.

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 industries, 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 solutions tailored to specific motion requirements. Tecnotion's expertise enables them to deliver high-quality motor solutions that meet the diverse needs of their clients, ensuring optimal performance in their applications.

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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