Companies

Calltree

calltree.ai

Calltree provides fully managed, custom AI support agents that optimize enterprise contact-center workflows.

HQSan Francisco, California, United States
Employees1-50
1 active role
Jobs checked 9h ago
Sales TechAI AgentB2B SaaSSeed

About

Calltree builds enterprise-grade AI support representatives for contact centers, handling voice calls and chats while using internal tools such as CRMs and dashboards. It sells primarily to enterprise customer-service and operations teams, differentiating through fully managed, client-specific AI foundations, integrations, monitoring, and continuous improvement rather than a generic software product.

Market

Calltree competes in the enterprise conversational-AI and contact-center automation market, combining AI support agents with workflow optimization and operational analytics. It positions itself as a fully managed AI operations partner rather than a software platform customers must configure and operate themselves. Its differentiation is a custom AI foundation trained on customer-specific data, direct use of internal enterprise tools, and a US-based human operations team that monitors, calibrates, and continuously improves the system.

Target Customers

Calltree targets large enterprise contact centers and B2B companies with complex products, demanding customers, and substantial support volumes. Its primary buyers are VP- and operations-level leaders in call-center or contact-center operations who want to reduce handle time, improve resolution rates, and lower support costs.

At a Glance

Problem

Calltree addresses the hidden operational inefficiency in enterprise contact centers: leaders know that reducing average handle time can save millions, but lack a scalable way to identify where time is being lost. Manual time studies are expensive and tedious, while less than 1% of available screen recordings are reviewed, leaving most calls and rep workflows unanalyzed. The killer use case is finding small, repeatable delays—such as a representative spending 30 seconds gathering and entering data during a credit-card dispute, or switching among five legacy applications—and translating them into an annual cost and a business case for fixing them.

Product / Service

Calltree combines AI support agents with a fully managed AI operations service. Its agents handle voice calls and chats and can use internal systems such as homegrown CRMs and dashboards. The company also analyzes millions of minutes of call and screen recordings to identify workflow inefficiencies, quantify the time and cost of each action, surface recommendations in analytics and reports, and measure performance before and after a change to verify savings.

The current delivery model is deliberately hands-on rather than self-service software: Calltree trains a custom AI foundation on each client’s calls, documents, products, and processes, integrates it with CRM, telephony, ticketing, and handoff tools, and provides ongoing monitoring, calibration, reporting, and human oversight. It covers voice, chat, and email, with applications extending beyond self-service to agent assist, quality assurance, and onboarding. The intended benefit is support that improves over time while reducing handle times, increasing resolution rates, and giving the customer one team accountable for the outcome.

Market

Calltree competes in the enterprise contact-center AI, voice-AI-agent, and managed customer-support operations markets. Its closest overlaps are enterprise AI customer-service and contact-center platforms such as Cresta, Decagon, Cognigy, Kore.ai, Google Contact Center AI, Sierra, Replicant, PolyAI, and Genesys, although the available sources do not establish a formal competitive comparison or identify a single named head-to-head rival. Calltree’s differentiation is the combination of custom model training, access to internal enterprise tools, workflow analytics, and a managed human-in-the-loop operating model.

The company is an active Y Combinator Winter 2025 startup and publicly identifies customers including Traeger Grills, Whalen Furniture, MEATER, Bayside Furniture, and Gorilla Racks. Third-party databases report approximately $500,000 in funding and estimate roughly $440,000 in 2025 revenue, so the evidence points to an early commercial company rather than a clearly pre-revenue startup; those revenue figures are estimates rather than company-reported financials.

Founders & Leadership

Kun QianFounder
Co-Founder & CEO
Robertson TaylorFounder
Founder

Funding History

2025-03
Pre-Seed (Crunchbase) / Seed (Tracxn)$500K

Y Combinator

Recent News

2026-07-29product
Generative AI Startups funded by Y Combinator (YC) 2026

Y Combinator’s 2026 generative-AI directory lists Calltree as making enterprise-grade AI support representatives for call centers. The listing says its AI representatives handle both voice calls and chats.

2026-01-15product
AI Operations Analyst at Calltree

Calltree’s YC hiring page describes the company as building AI support representatives for call centers. The associated role description highlights AI handling of technical-troubleshooting calls lasting more than 30 minutes.

2025-12-30
AI Trends 2025

A 2025 AI trends article describes Calltree AI as offering generative-AI support agents for customer service that use natural-language processing to handle customer interactions.

2025-09-14funding
Calltree Revenue 2025: $440K Est. ARR, $1.3M Valuation

Latka reported that Calltree reached an estimated $440,000 in 2025 annual recurring revenue and a $1.3 million valuation, described as being set during an M&A Offer round.

2025-08-27
Y Combinator 2025 Startups Overview

A third-party overview of Y Combinator’s 2025 startups identifies Calltree AI as a customer-service AI company in the Winter 2025 batch. The article notes that the batch’s Demo Day took place on March 13, 2025.

Active Roles

1
San Francisco, CA, US/Data & Analytics/35d ago

Business Model

Calltree appears to sell fully managed, custom AI operations and customer-support services to enterprise clients through contracted engagements. Its public materials do not disclose specific pricing, packaging, or subscription terms.

Products

Fully managed AI support representatives for voice calls, chat, and emailCustom AI foundation trained on each customer’s calls, documentation, products, and processesEnterprise integrations and tooling across CCaaS, CRM, telephony, ticketing, and human handoffsAI-powered contact-center workflow analytics that identifies inefficiencies, quantifies their cost, and measures post-improvement savings

Customers

Traeger GrillsWhalen FurnitureMEATERBayside FurnitureGorilla Racks

Tech Stack

Generative AI and custom AI foundation modelsConversational AI for voice, chat, and emailMultimodal AI for call, audio, video, and screen-recording analysisCCaaS, CRM, telephony, ticketing, and internal-tool integrationsWorkflow analytics, automation, and operational reporting

Competitors

Fin
Ada
Decagon
Sierra
Kore.ai
Cognigy
PolyAI
Talkdesk