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Fabius
fabius.io · San Francisco · founded 2020 · team Not publicly disclosed · Acquired by Fractional AI (Feb 2026 announcement, Mar 2, 2026 news) · trust 0/4
AI to improve Sales Calls
This dossier was built by Clark from a public scan on 2026-07-04 and is unclaimed. Is this your startup? Claim it.
Verified facts
| Company Name | Fabius
source: https://www.ycombinator.com/companies/fabius |
| Tagline | AI to improve Sales Calls
source: https://www.ycombinator.com/companies/fabius |
| City | San Francisco
source: https://www.ycombinator.com/companies/fabius |
| Founded Year | 2020
source: https://pulse2.com/fractional-ai-acquires-y-combinator-startup-fabius-to-expand-applied-ai-services/ |
| Team Size | Not publicly disclosed
source: No verified public source |
| Stage | Acquired by Fractional AI (Feb 2026 announcement, Mar 2, 2026 news)
source: https://pulse2.com/fractional-ai-acquires-y-combinator-startup-fabius-to-expand-applied-ai-services/ |
| Founders | Neil Madsen (CEO & Co-Founder), Andy Day (CTO & Co-Founder)
source: https://www.ycombinator.com/companies/fabius |
| Entity Type | Delaware corporation (inferred from typical YC startups; not verified in public records)
source: N/A (inferred) |
| Contact Email | founders@fabius.io
source: https://www.ycombinator.com/companies/fabius (launch post) |
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