You also had the Timex Sinclair 1000, which was a ZX-81 clone.

I just looked it up and it was Timex of Portugal that produced the Timex Sinclair models for export to the USA, and also released them in Portugal and Poland. And I didn't know this, but it was Timex of Scotland who produced the original Sinclair computers, so that is why Timex got the contract and branded them for the USA market.