We realised afterwards that these boxes were available in many other posh design shops across the city. And they were all sold as a product from HAY, a well-known design brand around here.
What HAY did was to import the industrial crates and sell them for a different usage than what they were originally intended. At a much higher price as well, one can imagine.
It seems that the crate design might have evolved slightly (we got some more along the years, they *are* practical). Originally showing the Aykasa logo, there are some that only show the model name, some nothing at all, but they are all made in Turkey.
As years passed, the crates made their appearances into more and more shops, less and less fancy ones. Toy shops are selling them as toy storage for kids, decoration stores as a practical home item, art and office supply shops as boxes for supplies. But always sold under the HAY brand. They became commonplace in many stores and I imagine a familiar sight in Danish homes.
Other Danish stores started to make their own versions. The COOP supermarkets are selling their own. The JYSK furniture store are selling their own. They are all pretty much the same, but are distinguishable by the shape of their cut-outs and how the plastic material feel.
Last chapter of the saga. Visiting the HAY main store in Copenhagen earlier this week, the Aykasa crates were not there. Instead, there was a new model, as similar to the original as any of the other off-brands, with the letters H, A, Y molded into the plastic. Made in China.
In the meantime, it seems that another Danish company, WeSupply, became the official distributor for the Aykasa crates: https://we.supply/brand/aykasa/