Zello operates a push-to-talk platform that transforms smartphones, tablets, and computers into instant walkie-talkies, enabling real-time voice communication for frontline and deskless workers. The company's technical work spans real-time communication systems, artificial intelligence, and natural language processing - areas central to its efforts to serve what it estimates as 80% of the global workforce that does not sit at a desk.
The Zello Platform delivers over 10 billion messages monthly across more than 200 countries, supporting users in sectors including construction, retail, aviation, and emergency services. Over 3,000 emergency organisations use the platform, and the company provides its enterprise solution free of charge to first responders worldwide.
Headquartered in Austin, Texas, Zello's AI and NLP capabilities underpin a communication infrastructure operating at substantial global scale, presenting engineering challenges in speech processing, low-latency transmission, and multilingual support across diverse network conditions.
