Calltree

Calltree YC Application

Winter 2025Active

Calltree went through Y Combinator in the Winter 2025 batch as a B2B company. Below: what the company does, who founded it, and its application to YC, reconstructed question by question in the real YC form.

YC batch
Winter 2025
Industry
B2B
Team size
14
Status
Active
Launched
2025

Founders

  • Kun Qian
    Kun QianFounder
  • Robertson Taylor
    Robertson TaylorFounder

What Calltree does

Calltree makes enterprise-grade AI support reps for call centers. Our AI reps take voice calls and chats like other AI support agents but can also use internal enterprise tools like a homegrown CRM or internal dashboards, like the highly trained humans working there today.

Calltree's YC application, reconstructed

Y Combinator application

Calltree, Winter 2025 batch. The real form questions, answered from public data.

  1. Founders2
  2. Company7
  3. Progress7
  4. Idea4
  5. Equity3
  6. Curious2
  7. Batch Preference1

Company

Company name

Calltree

Describe what your company does in 50 characters or less.

Enterprise AI support reps for call centers

What is your company going to make? Please describe your product and what it does or will do.

We build AI support reps that handle live voice calls and chat for call centers. Unlike other AI support agents, our reps integrate with a company's internal tools - like homegrown CRMs or internal dashboards - allowing them to perform complex tasks just like well-trained human agents.

Where do you live now, and where would the company be based after YC?

We live in San Francisco, CA, and after YC the company will remain based here.

Explain your decision regarding location.

San Francisco is where we built the team and have access to the best AI and enterprise talent. It's also where many of our early enterprise contacts are based, which is crucial for selling and refining our product.

21 more answers in the full application

Founders, Progress, Idea, Equity, Curious, Batch Preference are in the full version. Create a free account to open it in YC Insights, next to every other YC batch.

Frequently Asked Questions

Is this the real Calltree YC application?

No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Calltree's public data (launch notes, founder backgrounds, product description). It shows how a company like Calltree would present itself to YC, not the text they submitted.

What YC batch was Calltree in?

Calltree was part of the Y Combinator Winter 2025 batch.

Who founded Calltree?

Calltree was founded by Kun Qian, Robertson Taylor.

What does Calltree do?

Enterprise-grade AI support reps for call centers

How do I read the full reconstructed application?

Create a free Round Funded account. The full 26-answer version of Calltree's application, and every other YC batch, is in YC Insights.

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