Giga is a San Francisco voice AI company building human-sounding AI agents for enterprise customer support. Its core technology is a unified real-time orchestration layer that simultaneously manages listening, understanding, deciding how to respond, checking databases, and delivering an answer—all in under half a second. The result is natural, low-latency voice interactions that the company says achieve a 90% deflection rate across 90 languages. Giga already works with DoorDash, where its system can maintain a live connection with a Dasher, call the consumer to verify an address, and cross-check policy compliance automatically in real time. Founded by IIT Kharagpur graduates and Forbes 30 Under 30 alums Varun Vummadi and Esha Manideep, Giga raised a $61M Series A led by Redpoint Ventures in November 2025 to scale into Fortune 100 enterprises and regulated industries like healthcare and finance, where it can deploy on a client's own cloud using open-source models.