Keyser & Mackay is a market oriented distributor of chemical raw materials and industrial equipment, acting as an intermediary between customers and suppliers.
We have a strong focus on chemical specialties for the formulating industries.

In our philosophy, transparency towards our customers and principals is one of the most important elements that differentiates us from other distributors.
Providing technical solutions, delivering service and adding value are key drivers of our sales teams.

- Adding value to your products -

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Keyser & Mackay is an experienced agent and distributor of specialty chemicals and equipment with an extensive network throughout the heart of Europe. Situated in the historic City of Amsterdam by one of the most beautiful 17th century canals, Leidsegracht 19 is the headquarters of a pan-European operating agent and distributor in chemical raw materials.

We represent over 100 suppliers producing a wide range of products including additives, pigments, fillers, polymers, surfactants, resins, silica’s, wax emulsions, epoxy hardeners, silanes and many more.

We serve over 1000 customers with a full range of functional and synergetic products for many industries including coatings and printing inks, adhesives and sealants, plastics, construction, basic chemicals, food and feed, pharmaceuticals, personal care and many others.

Keyser & Mackay has 150 employees and offices in 7 countries in Europe, each having its own storage facilities. We work industry segmented with dedicated and experienced technically educated industry managers acting as problem solvers, supported by commercial inside sales teams. We take care of market investigation, sales promotion, logistic matters, warehousing, sampling and technical support to customers.

Adding value to your products is our goal in life. We are committed to giving support and quick response to our customers’ needs, ensuring quality and transparency in all our services.

Safety, Health and Environment

Being active in chemical distribution, we feel a large responsibility toward safety and health for our employees, customers and consumers of our products, as well as for the environment in which we live. We therefore strictly comply with all relevant regulations and rules as it comes to safety, health and environment. We have rules and measures in place to reduce the risk for our employees, customers, society and environment to the minimum. We constantly strive to improve our quality standards and performance and we are strongly committed to maintain our high level of engaged leadership and safety culture.


Keyser & Mackay is fully in compliance with the regulations on Registration, Evaluation, Authorization and restriction of Chemicals (REACH). “The main aims of REACH are to ensure a high level of protection of human health and the environment from the risks that can be posed by chemicals, the promotion of alternative test methods, the free circulation of substances on the internal market and enhancing competitiveness and innovation”.

We fully understand our role as an importer and downstream user of chemicals and act accordingly. We are able to offer full service to our suppliers and customers on REACH related issues including acting as Only Representative.

Local Management

Robert Woizenko         Sales Director
Evelin Knaack              Office Manager


Keyser & Mackay was founded in 1894 in Amsterdam. In the starting period, the business was concentrated in the coating industry and the trade with the Dutch Indies. In 1908, a second office was opened in Rotterdam. The Amsterdam office was managed by Mr.J.I. Keyser, while the Rotterdam office was managed by Mr. A.C. Mackay. The Amsterdam office moved to its current location at Leidsegracht 19 in 1926.

In 1931, a Belgium branch was opened in Brussels being the first foreign branch of Keyser & Mackay. More foreign branches were opened in 1944 in France, 1947 in Switzerland, 1987 in Germany, 1995 in Poland and 2013 in Spain.

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