Koos Weel is specialized in art advisory and private sales for collectors and investors, with over 15 years of experience in the art market, combining his academic background in Art History with practical commercial expertise to help clients navigate acquisitions, sales and collection strategies.

His understanding of artistic movements and provenance, paired with a clear eye for market opportunities, allows him to identify works that align with both the personal interests and financial objectives of his clients.
Koos has worked closely with private collectors, galleries, and institutions, brokering thoughtful transactions and guiding long-term portfolio development.

With a particular interest in old masters and unconventional modern art, Koos is known for fostering connections between clients and unique pieces while ensuring each decision is grounded in careful research and market insight. He is also the founder of Pathos Art Brokerage, a firm dedicated to private sales and strategic art investments.