Ranger Design. They make tool storage products for trade vans. I had a partion, slide out toolbox and a pair of trick fold down shelves with struts in my Ford Transit Connect. Killer products, VERY beefy and well made in the US. I liked the toolbox and shelves so much I took them out before I sold the van, put the toolbox on casters for home tool storage and am saving the the shelves to bolt into the concrete and wall in a future garage.
https://rangerdesign.com/
https://rangerdesign.com/