Leinhäuser Language Services GmbH

Based in Unterhaching, Germany, Leinhäuser Language Services GmbH has operated since 1997 as a multilingual text agency serving B2B clients with international communication needs. Its client base spans sectors such as industrial technology, corporate publishing and IT, working with companies that require multilingual content across more than 100 languages. The agency positions itself as an extension of clients' internal teams, organising work through specialised linguist teams and dedicated "Leinhäuser Studios" for services beyond standard translation. Core offerings include specialist and technical translation, transcreation, MT-editing, terminology management, editing and proofreading, adaptation, copywriting, and audiovisual localisation, alongside interpreting and language engineering. On the marketing and digital side, the agency handles international SEO, social media content, press releases, campaigns, presentations, digital media and print materials, as well as annual reports, speeches and legal texts, with a "priority lane" option for expedited turnaround. Work is supported by quality management processes certified to ISO 17100 and ISO 9001, with data security audited under TISAX; the agency also references EcoVadis assessment, a code of conduct, GDPR compliance and adherence to the UN Global Compact. It holds a leadership role within an industry association and organises project delivery around named contact persons and teams matched to subject-matter requirements, from marketing copy to specialist and cultural-historical texts.