Siska Schippers was born in Amsterdam and worked as a European gold and silversmith before she decided to make handmade resin jewellery, home decor, and gifts under the ZSISKA brand. Siska decided to move to Thailand in the 90s to further study the materials being used. Siska started to work with resin in a studio in Cha-Am, a small town two hours south of Bangkok, where she employed fourteen women. It took several years to get used to the resin; the team learned to master the material through trial and error. The fourteen women with whom Siska started the company still work for ZSISKA today. Most of their family members and children joined the company in a later stage.