Pirros YC Application

Winter 2023Active

Pirros went through Y Combinator in the Winter 2023 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 2023
Industry: B2BEngineering, Product and Design
Team size: 44
Status: Active
Launched: 2022

Founders

Ari BaranianFounder
Peter JohannFounder

What Pirros does

Pirros is reshaping and revolutionizing how Architecture and Engineering firms manage design details. Our software empowers AECO design professionals (Architects, Engineers, Contractors, and Owners) to streamline their detail management process more effectively, reduce errors, and speed up project delivery. We’re building the system of record for detail management in a $12T+ industry that’s been underserved by technology for too long! About Us Backed by top-tier investors and angels (YC, Funders Club, PlanGrid, Elephant) - We closed our Series A of ~$17 million in 2025 - PROFITABLE, ~$6M ARR and growing revenue at +10% month-over-month - 300+ firms using us today, growing 10% MoM, 120% NRR - Co-founders both come from structural Engineering, so we have industry experience!

Pirros's YC application, reconstructed

Y Combinator application

Pirros, Winter 2023 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Pirros

Describe what your company does in 50 characters or less.

Github for Construction

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

We built software that helps Architecture, Engineering, and Construction firms manage design details more effectively. It replaces manual, error-prone processes with a system that tracks, collaborates on, and delivers detail drawings faster. Our users are architects, engineers, contractors, and owners who need to coordinate complex project details in one place.

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

We live and are based in Los Angeles, CA. We would remain here after YC.

Explain your decision regarding location.

Los Angeles has a strong cluster of Architecture and Engineering firms and suits our network and customer base. We want to build close ties with local AECO professionals and the design ecosystem here.

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 Pirros YC application?

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