Harry M. Koorstra

Hermans Investments BV provides investment services. It offers its services to the companies within Herman Investments. The company is headquartered in Hoorn, the Netherlands.

The Confederation of Netherlands Industry Employers, also known as VNO-NCW, is the largest employers' organization in the Netherlands. The private company is based in The Hague, Netherlands. It represents the interests of Dutch businesses both domestically and internationally and offers various services to its members. The organization advocates for businesses of all sizes and sectors, from AEX companies to family-owned businesses, small and medium-sized enterprises, and young entrepreneurs. VNO-NCW aims to create an environment that fosters entrepreneurship. The organization provides a platform for entrepreneurs to voice their opinions on new legislation and current business issues through the MKB Ondernemerspanel. VNO-NCW also publishes an opinion magazine called Forum, which is free online and available in print for a fee. The organization has expressed support for the government's balanced climate plans, emphasizing the importance of focusing on the execution of all necessary prerequisites to achieve the 2030 climate goals, such as permits and energy infrastructure.

Postkantoren BV provides postal services. The company was established in 1993 and is headquartered in Utrech, the Netherlands.

The International Post Corp. is dedicated to improving service quality, promoting cooperation and interoperability, and providing informed intelligence about the postal and related markets. Since 1989, the International Post Corporation has set standards for upgrading quality and service performance and developed technology that has helped members improve service for international letters, parcels and express. Personal and business communications have evolved tremendously over the last 20 years, and the mailing industry has evolved as well. IPC continues to help the postal sector by developing state of the art technology and quality improvement systems that are guiding postal operators into the future and keeping the industry a viable and competitive source of communications.

VNU NV provides publishing and information services. It is a market research company and measures retail sales of consumer-packaged goods, and study consumer attitudes and behavior and also measure audiences for television, motion pictures, radio, print, the Internet, and other major media. The company tracks the sale of CDs, videos, DVDs and books, and monitor where and how advertising money is spent. It delivers news and vital information through trade publications, trade shows and websites. VNU’s headquarters are located in Haarlem, The Netherlands.

Sandd BV provides postal and courier services. It delivers cards, letters, and packages as well as bulk mail, magazines and other periodicals. The firm's services include mail sorting and delivery services through their centralized sorting facility depots which provide a country-wide coverage network. The company is headquartered in Apeldoorn, the Netherlands.

Koninklijke Swets & Zeitlinger Holding NV provides subscription services and operates an e-Commerce platform. Its products and services power the work of professionals and students, academic, corporate, government and medical organizations. . The company is headquartered in Leiden, Netherlands.