Why is “company name” added to meta title by default?

Hi!

I have just discovered that a lot of my meta titles in Google now have an extra “- company name” added. So a title which in Yoast is “Madpakke – ideér og inspiration til l?kre og sunde madpakker” becomes “Madpakke – ideér og inspiration til l?kre og sunde madpakker – Mambeno” in the search results. It’s probably a now brainer – I just can’t figure it out. Can anybody help me?

Thanks very much in advance

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