Calltree

Enterprise-grade AI support reps for call centers

Y CombinatorWinter 2025ActiveB2BGenerative AISaaSB2BCustomer Service

What they do

Problem

Call centers need scalable, high-quality customer support that can handle voice and chat interactions and access internal enterprise tools without relying solely on human agents.

Solution

Calltree provides enterprise-grade AI support representatives that handle calls and chats and integrate with internal systems like CRMs and dashboards to resolve issues end-to-end.

Who it's for

Enterprise call centers and customer support organizations that need AI agents integrated with their internal tools.

Founders

Kun Qian

Founder

Kun, co-founder and CEO of Calltree AI, previously a product leader at AWS where he focused on contact center solutions. During his tenure, he built and scaled multiple product lines that achieved tens of millions in ARR. Drawing from deep insights into contact center operations and analytics, Kun co-founded Calltree AI to empower contact centers with the data-driven insights they need to optimize operations and reduce costs.

Robertson Taylor

Founder

Worked on applied multimodal AI with large enterprises at Marqo. Worked on ML for high cardinality anomaly detection that was deployed into fortune 100 companies and banks while at AWS. Led platform teams at Hopper. Georgia Tech CS grad, worked on HPC research.