AfterQuery YC Application

Winter 2025Active

AfterQuery 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: B2BInfrastructure
Team size: 30
Status: Active
Launched: 2025

Founders

Carlos GeorgescuCo-Founder
Spencer MateegaCo-Founder

What AfterQuery does

AfterQuery is an applied research lab curating data solutions for frontier foundation model development. Serving every frontier AI lab.

AfterQuery's YC application, reconstructed

Y Combinator application

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

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

AfterQuery

Describe what your company does in 50 characters or less.

Data solutions for foundation model development

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

We build an applied research lab focused on curating and delivering data solutions tailored for the needs of frontier AI labs developing foundation models. Our product organizes, labels, and structures data to improve training and fine-tuning of advanced AI models, making it easier for AI labs to acquire and use high-quality datasets specifically designed for their research challenges.

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

We live and work in San Francisco, CA, and AfterQuery will remain based here after YC to stay close to both the frontier AI ecosystem and the many labs we collaborate with.

Explain your decision regarding location.

San Francisco is where most cutting-edge AI research labs and infrastructure companies are. Being here keeps us close to our customers and the talent pool we rely on.

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.

See full application

Frequently Asked Questions

Is this the real AfterQuery YC application?

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