BTI Cardiff was established as Trosol in 1985, primarily as a subtitling company. Over time, the company has diversified and is now Wales’ leading provider of written translation, simultaneous translation, subtitling and other language services.
Over the past 30 years we have forged a formidable reputation for the consistently high quality of our work. Though our work is mainly based in the public sector, we also service a burgeoning market for Welsh language services in the private sector. Our list of clients includes S4C, NHS Wales and OCR and Edexcel examination boards.