FullSeam
YC W26Founded 2026 · 3 employees · 1 known investors
FullSeam provides AI agents that autonomously manage accounts receivable, accounts payable, cash application, and reconciliation tasks for finance teams. The platform integrates with existing ERP systems and financial software to automate manual finance operations.
Founders & leadership· Y Combinator alumni (W26)
FullSeam was founded in 2026 by Thomas Dowling, Aaron Coppa, and Geoff Segal.
TD
Thomas Dowlingin𝕏Co-founderTom Dowling is co-founder of FullSeam, which provides automation software for corporate accounting teams. He previously co-founded TaxProper, a property tax software company that was acquired by Opendoor in 2022, and has held roles advising Chicago's municipal government and managing a state agency in Illinois. He holds a BA from UIUC and an MSc from Oxford as a Rhodes Scholar.
AC
Aaron CoppainCo-FounderPreviously, he was a founding engineer at TaxProper, a property tax software company that was acquired by Opendoor in 2022.
GS
Geoff SegalinCo-FounderGeoff Segal co-founded TaxProper, a property tax software company acquired by Opendoor in 2022, and is now co-founder of FullSeam, an AI platform for finance and accounting teams.
Investors · 1
Founder mafia
2 people who came through FullSeam went on to found or lead other companies.
Competitors · 5
by search overlap
Seam5 shared keywordsSeam provides an API platform that enables developers and businesses to connect applications with IoT devices and orchestrate their use. The platform abstracts device protocols and integrations to simplify physical device connectivity.
Fullbay4 shared keywordsFullbay is cloud-based management software for heavy-duty truck, trailer, and diesel repair shops, covering repair tracking, labor and clock management, parts inventory, invoicing, and electronic payments. It serves shop owners, technicians, service managers, parts managers, and office staff, and integrates with accounting and communication tools.
Seam AI4 shared keywordsGetseam is an AI platform that helps business teams generate sales pipeline. The product uses artificial intelligence to assist with business development and lead generation workflows.
Fullsteam3 shared keywordsFullsteam is a software acquirer that provides vertical-specific business management software with integrated payments, embedded insurance, fintech, and marketing services across niche industries such as association management, automotive, field services, retail, wine, and ground transportation. It serves small and medium businesses as well as enterprises through cloud-based point-of-sale, ERP, and payments technology.
Seam Technologies3 shared keywordsSeam builds data and technology tools for nursing workflows and clinical decision-making, serving nursing teams and healthcare organizations.
Companies competing with FullSeam for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does FullSeam do?
- FullSeam provides AI agents that autonomously manage accounts receivable, accounts payable, cash application, and reconciliation tasks for finance teams. The platform integrates with existing ERP systems and financial software to automate manual finance operations.
- Who founded FullSeam?
- FullSeam was founded by Thomas Dowling, Aaron Coppa, Geoff Segal in 2026.
- Who are FullSeam's investors?
- FullSeam's investors include Y Combinator.