FullSeam
Winter 2026 NewAI agents for corporate accounting teams
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.
AI Investor Summary
FullSeam is building AI agents to automate critical, manual tasks within corporate accounting departments, such as accounts payable, accounts receivable, and reconciliation. Led by a team with deep technical expertise from Google and Stripe, and a founder with a successful prior exit, they are poised to capture a significant share of the massive B2B finance and accounting market. Their solution promises to drive efficiency and accuracy for businesses struggling with labor-intensive financial processes.
Key Highlights
- ● Founders with strong technical backgrounds from Google and Stripe.
- ● Co-founder Thomas Dowling's successful acquisition of TaxProper by Opendoor.
- ● Addressing a large and persistent pain point in corporate accounting with AI agents.
Risk Factors
- ● Competition from established players and other AI startups in the fintech/accounting space.
- ● The challenge of achieving seamless integration with diverse accounting software ecosystems.
- ● Demonstrating clear ROI and adoption by conservative accounting departments.
Founders
Tom is the co-founder of FullSeam (W26). FullSeam automates work for corporate accounting teams. He previously co-founded TaxProper (S19), the leading property tax software for institutional real estate investors, which was acquired by Opendoor (NASDAQ: OPEN) for 8-figures in 2022. He advised the Mayor of Chicago and was appointed by Illinois Governor JB Pritzker to oversee a $700m/year state agency. He has a BA from UIUC and an MSc from Oxford, where he was a Rhodes Scholar.
Aaron Coppa is the co-founder of FullSeam, a Y Combinator startup focused on streamlining the software development process. His background includes significant experience in engineering and product development, with a particular emphasis on building scalable and efficient systems. Coppa's work at FullSeam aims to address critical pain points in the software lifecycle.
Geoff Segal is the co-founder of FullSeam, a Y Combinator startup focused on streamlining construction project management. He brings a strong background in engineering and product development to the company, with prior experience at notable tech firms. Segal's expertise lies in building scalable software solutions for complex industries.
Score Breakdown
Exceptional technical pedigree with multiple founders having prior experience at Google and Stripe. Thomas Dowling's previous successful exit with TaxProper and his experience in public service demonstrate strong execution capabilities and domain understanding. The combination of deep technical talent and proven entrepreneurial success makes this a very strong team. [Boost +2: Founder from Google; Founder with previous successful exit; Founder from Google; Founder from Google]
The B2B finance and accounting software market is massive and consistently growing. The demand for automation in these areas is high due to the repetitive and error-prone nature of manual tasks. While competitive, the specific niche of AI agents for tasks outside core accounting software presents a significant opportunity. Regulatory tailwinds for efficiency and data accuracy are present. [Boost +0.5: Hot sector: ai]
The concept of AI agents for AP, AR, and reconciliation is technically feasible and addresses a clear pain point. The differentiation lies in the execution and the ability to seamlessly integrate with existing accounting systems. The current description suggests a focus on replacing manual tasks, which is a good starting point, but defensibility and a deeper platform play will be crucial as the product matures. UX quality will be paramount for adoption by accounting professionals.
As a Winter 2026 batch company, traction is expected to be very early. The press coverage indicates a successful launch and initial interest, which is positive. However, concrete metrics on revenue, user adoption, or significant partnerships are not yet available. Investor interest is implied by YC acceptance, but this needs to be validated with actual engagement.
News
FullSeam has launched, offering AI agents that handle accounts receivable, accounts payable, cash application, and reconciliation by integrating with existing accounting tools.
Velocity Catalyst Fund I announces an investment in FullSeam, an AI-native platform deploying autonomous agents for corporate accounting tasks like accounts receivable and payable.
FullSeam has launched, offering AI agents designed to automate routine finance and accounting tasks such as accounts receivable, accounts payable, cash application, and reconciliation.
FullSeam has launched, offering AI agents designed to automate routine tasks for accounts receivable and accounts payable teams, integrating with existing accounting tools to handle invoicing, payment follow-ups, reconciliation, and more.
FullSeam, founded in 2025, provides AI agents for finance and accounting automation, offering solutions for accounts receivable, accounts payable, cash application, and reconciliation, and has raised $500K in seed funding.
FullSeam is targeting the gap-work in corporate accounting, deploying AI agents to handle accounts payable, accounts receivable, cash application, and reconciliation, aiming to replace manual labor rather than accounting software.
FullSeam, an AI-powered finance and accounting teammate, automates routine tasks for accounts receivable and accounts payable teams by integrating with existing accounting tools.
FullSeam has launched an AI employee designed to automate end-to-end finance operations for accounting teams.
FullSeam is an AI employee for finance and accounting teams that automates routine tasks like AR, AP, and reconciliation by logging into existing business tools.
FullSeam builds AI agents that replace manual accounting tasks such as accounts payable, accounts receivable, and reconciliation, operating within a company's existing accounting software.
FullSeam offers AI agents to automate accounts receivable, accounts payable, cash application, and reconciliation, integrating with existing ERP, billing systems, and spreadsheets.
FullSeam has launched an AI employee designed to automate a wide range of finance and accounting tasks, including accounts payable, accounts receivable, cash application, and reconciliation.
Quick Info
- Batch
- Winter 2026
- Team Size
- 3
- Location
- Remote, Partly Remote
- Founders
- 3
- Scraped
- 4/10/2026