ReadSpeaker is a text-to-speech company headquartered in Uppsala, Sweden. Its voices are offered as a fully hosted cloud service with an API, as a speech engine SDK for applications, and as an on-premise server, where the data stays inside the customer's network. An on-device embedded engine and custom voices are also part of the range.
ReadSpeaker is backed by Marunouchi Capital Fund III, a private equity fund that the company describes as fully owned by Mitsubishi Corporation of Japan. The privacy notice names ReadSpeaker AB in Uppsala as data controller and states that personal data may be processed outside the EEA under standard contractual clauses or the EU-US Data Privacy Framework. The website names neither the cloud providers nor the hosting regions. For a European organisation, the on-premise and embedded options keep audio under local control, while the cloud service depends on hosting arrangements the vendor does not disclose.