Accounts for Zoo Digital have been delayed after its auditors at Grant Thornton told the company that it was not properly accounting for suppliers’ invoices, a situation that will take $1.2 million off its operating earnings.

The accounting “misinterpretation” sent shares in the British subtitles and dubbing provider plummeting by a third, taking the gloss off its recent status as a darling of the small-cap markets.

Zoo, based in Sheffield, provides the on-screen written words or translated voices enabling the globalising streamers — the likes of Disney+, HBO and NBCUniversal — to localise their content when English is not the first language. It employs 470 people.

Its revenues have doubled and are on course to break through the $100 million-a-year mark. However, after a decade

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