The Swiftstick was a broom produced by Ellerby and Spudmore in Germany, who had earlier released the Tinderblast, in 1952. It was never used for Quidditch because of its inability to ascend powerfully (QA9).
Lexicon list of Broom Manufacturers
From the Web
Pottermore feature: Broomsticks
Harry Potter Wiki: Brooms
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