Transcription Companies

AssemblyAI

San Francisco, United States

AssemblyAI develops highly accurate speech-to-text APIs, including their flagship LeMUR model, and a suite of audio intelligence features like speaker diarization, entity detection, and topic detection. Their key innovation lies in offering low-latency, high-accuracy transcription optimized for real-time and asynchronous applications, alongside advanced features like content moderation and redaction. Serving a diverse market including contact centers, media companies, and research institutions, AssemblyAI processes millions of minutes of audio data monthly and is recognized for consistently achieving industry-leading Word Error Rates (WER) in independent evaluations.

Otter.ai

Mountain View, United States

Otter.ai develops AI-powered meeting solutions, most notably its Otter Meeting Agent platform, which provides real-time transcription, automated summaries, and AI-driven action item detection. The platform leverages advanced speech recognition and natural language processing to create searchable meeting records and facilitate collaboration, integrating with popular video conferencing tools like Zoom, Google Meet, and Microsoft Teams. Otter.ai currently serves a broad professional market, with reported user testimonials indicating significant time savings – up to 33% according to one VP of Sales at Aiden Technologies – and increased productivity for teams reliant on frequent meetings.

Rev AI

San Francisco, United States

Rev AI provides a speech-to-text API specializing in automated transcription and speech recognition services. Their core technology centers on a diverse, large-dataset trained AI model designed for high accuracy across varied audio qualities and accents. They target developers and businesses requiring scalable, programmatic transcription solutions for applications like voice search, media monitoring, and accessibility services.