Giga, a San Francisco–based startup that builds voice-based AI agents for companies that need customer support, has raised $61 million in Series A funding led by Redpoint Ventures, with participation from Y Combinator and Nexus Venture Partners. The post-investment valuation of the company was not disclosed.

Founded by IIT Kharagpur graduates and Forbes 30 Under 30 alums Varun Vummadi and Esha Manideep, Giga is already working with food delivery company DoorDash. With the fresh funding, the company is looking to scale up usage within Fortune 100 enterprises and grow its team.

The voice AI space is crowded and competitive, mostly because of its potential to automate a lot of customer support work. The sector includes everything from specialized startups such as ElevenLabs and Vapi to tech giants like Amazon and Microsoft, vying for a share of a market projected to grow from $3.14 billion in 2024 to $47.5 billion by 2034.

Voice AI has the potential to streamline a lot of businesses’ customer service tasks, such as answering routine customer questions or scheduling appointments, without a human agent needing to step in. Many companies already use chatbots to automate various written communications with customers, but realistic voice AI that is good enough to hold natural conversations has the potential to handle many more customer interactions.