FullSeam YC Application

Winter 2026Active

FullSeam went through Y Combinator in the Winter 2026 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 2026
Industry: B2BFinance and Accounting
Team size: 3
Status: Active
Launched: 2026

Founders

Thomas DowlingCo-founder
Aaron CoppaCo-founder
Geoff SegalCo-Founder

What FullSeam does

FullSeam builds agents for corporate accounting. Our agents replace manual accounting tasks that typically happen outside of our customers’ accounting software, like accounts payable, accounts receivable, and reconciliation.

FullSeam's YC application, reconstructed

Y Combinator application

FullSeam, Winter 2026 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

FullSeam

Describe what your company does in 50 characters or less.

AI agents for corporate accounting teams

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

We build AI agents that automate manual accounting tasks done outside core accounting software - things like accounts payable, accounts receivable, and reconciliation. Our product plugs into corporate accounting workflows and replaces repetitive, error-prone work with agents that understand the specific needs of accounting teams.

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

We live and work remotely as a distributed team. After YC, we plan to remain distributed to stay close to our customers across locations.

Explain your decision regarding location.

Accounting teams are spread across many industries and geographies. Staying distributed lets us move fast while staying customer-focused without relocating.

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 FullSeam YC application?

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