Who founded FullSeam?

FullSeam was founded by Thomas Dowling, Aaron Coppa, Geoff Segal in 2026.

Who are FullSeam's investors?

FullSeam's investors include First Generation Capital, Kadan Capital, Pioneer, Rebel Fund, Transpose Platform Management, Y Combinator, Agrolimen Ventures, Blast.Club and 10 more.

FullSeam

YC W26

Founded 2026 · 3 employees · 18 known investors

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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.

AI & Machine Learning Enterprise Software FintechPartly Remote

Founders & leadership· Y Combinator alumni (W26)

FullSeam was founded in 2026 by Thomas Dowling, Aaron Coppa, and Geoff Segal.

Thomas Dowling CEOTom 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.

Aaron Coppa Co-FounderPreviously, he was a founding engineer at TaxProper, a property tax software company that was acquired by Opendoor in 2022.

Geoff Segal Co-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 · 18

First Generation Capitallisted by First Generation Capital

Kadan Capitallisted by Kadan Capital

How we know: Y Combinator's founder network · Not right? Tell us

Pioneerlisted by PioneerToronto, Ontario

How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us

Rebel Fundlisted by Rebel FundSan Francisco · $100K – $5M

How we know: Y Combinator's founder network · rebelfund.vc · Not right? Tell us

Transpose Platform Managementlisted by Transpose Platform ManagementSan Francisco

How we know: Transpose Platform Management's portfolio page · Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

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Agrolimen Venturesreported

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Blast.Clubreported$5.5M

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Clocktower VenturesreportedSanta Monica · $100K – $20M

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Daft CapitalreportedPalo Alto · $500K – $2M

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General Advancereported

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OurCrowdreportedJerusalem

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Palm Drive CapitalreportedNew York · $500K – $5M

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Sunshine LakereportedN Las Vegas

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Velocity Catalyst FundreportedChicago · $250K – $5M

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VentoreportedTorino · $165K – $1.1M

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Wadstein Capitalreported

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WefunderreportedSan Francisco

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Founder mafia

2 people who came through FullSeam went on to found or lead other companies.

Thomas DowlingCEOFounded TaxProper Geoff SegalPresidentFounded TaxProper

Related companies · 5

SeamSeam 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.

FullbayFullbay 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 AIGetseam 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.

Fullsteam Holdings, LLCFullsteam provides software and payments technology across retail, hospitality, transportation, and other industries by acquiring and operating best-in-class niche software companies. The company embeds payments, marketing, and insurance capabilities into business management platforms to help business owners consolidate their operations.

Seam TechnologiesSeam builds data and technology tools for nursing workflows and clinical decision-making, serving nursing teams and healthcare organizations.

Companies working in the same space as FullSeam.

Legal entities · 1

corporate structure

FullSeam Inc.

In the news

FullSeam: Your AI-powered finance and accounting teammateycombinator.com · Feb 2026

FullSeam Funding | Complete Analysis | Extruct AIextruct.ai

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 First Generation Capital, Kadan Capital, Pioneer, Rebel Fund, Transpose Platform Management, Y Combinator, Agrolimen Ventures, Blast.Club and 10 more.