FullSeam alternatives
TL;DR: 12 companies doing similar work to FullSeam in B2B, ranked by how closely they match what FullSeam actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with FullSeam. They are scored on how closely their own description overlaps with FullSeam's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to FullSeam?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Scanate/Fellow | API for Invoice Financing | Summer 2016 | 2 | Inactive |
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| ProcIndex | AI-powered accounting automation for construction and manufacturing | Summer 2025 | 4 | Active |
| Dimely | AI-Powered Spreadsheet for Billing Automation | Summer 2024 | 3 | Active |
| Dill | Dill helps construction suppliers automate accounts receivable,… | Winter 2023 | — | Active |
| haddock | AI agents to run restaurant operations | Winter 2022 | 40 | Active |
| Combinely | AI Coworker for Accountants | Spring 2025 | 8 | Active |
| Blixo | Accounts receivable automation to help companies get paid faster | Summer 2021 | 2 | Active |
| ClaimKit | AI-native tax firm | Fall 2026 | 4 | Active |
| BHRD | BHRD ("Be Heard") helps public companies communicate with investors. | Summer 2018 | 3 | Inactive |
| End Close | AI powered reconciliation for high-volume payments companies | Winter 2026 | 2 | Active |
Is FullSeam still active?
FullSeam is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with FullSeam. They are then ranked on how closely their own description overlaps with FullSeam's, so the closest matches come first rather than whoever happens to share a tag.