It's custom. We purchased the bases and had a table top made.

Is there a company that sells these tulip bases? Are these Saarinen reproductions that you can purchase so if I wanted a marble rectangular top made I could? Would love any advice as far as getting a custom made table using this type of base.

+1 on where the bases were purchased.

I think I have seen something very similar to the bases at Ikea.

From the looks of it, there are two smaller tulip tables with a wood top on. Finish product looks very nice.