You asked about Call Center
49 people built something like it. 4 are gone.
That is 9% of the ones whose fate we could settle, against 23% across the whole register. 3 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2024-06-01 | AI Agents for collections · domu.ai | still up |
| 2024-01-01 | YCArini AI receptionist for dentists · arini.ai | still up |
| 2025-01-01 | YCCalltree Enterprise-grade AI support reps for call centers · calltree.ai | still up |
| 2022-06-01 | Voice AI platform purpose-built for contact centers. · sigmamind.ai | still up |
| 2024-06-01 | AI voice that sells · usesimple.ai | still up |
| 2024-06-01 | YCPhonely AI call centers · phonely.ai | still up |
| 2024-09-01 | AI Workers for Healthcare Orgs to Find, Call & Schedule More Patients. · careforce.ai | still up |
| 2024-06-01 | YCDodo AI agents that handle communications for clinics · dodo.ai | still up |
| 2022-06-01 | YCArgovox Voice AI agents for patient billing and collections · argovox.com | gone |
| 2025-01-01 | How elite law firms do intake · caseflood.ai | still up |
| 2018-01-01 | Contact center AI platform. · observe.ai | still up |
| 2014-06-01 | YCUserGems The AI Command Center for outbound and ABM · usergems.com | still up |
| 2021-06-01 | YCRootly AI-native on-call and incident response carefully crafted to help… · rootly.com | still up |
| 2017-01-01 | Document AI. One API Call. · veryfi.com | still up |
| 2023-06-01 | YCBland AI The enterprise platform for AI phone calls · bland.com | still up |
| 2024-01-01 | Supercharge Your Contact Center Operations with AI Phone Agents · retellai.com | still up |
| 2020-01-01 | The API to get recordings, transcripts, and metadata from meetings · recall.ai | still up |
| 2017-01-01 | AI Radiologist in a Box - We provide a vertically integrated AI… · alemhealth.com | still up |
| 2022-01-01 | YCGauss AI agent that helps consumers lower the cost of debt automatically · gauss.money | still up |
| 2022-06-01 | YCCerrion Video AI to automatically detect and respond to production line… · cerrion.com | still up |
| 2024-06-01 | YCEntangl Find & resolve issues in data center engineering & operations using AI · entangl.com | still up |
| 2022-01-01 | AI agents that turn every call into revenue for trade businesses · spadeworks.co | still up |
| 2021-01-01 | Dramatically better search and ads for marketplaces · promoted.ai | acquired |
| 2023-01-01 | YCLiteLLM Call every LLM API like it's OpenAI [100+ LLMs] · litellm.ai | still up |
| 2026-06-01 | AI collections agency for late stage portfolios · callbook.ai | still up |
| 2024-01-01 | YCOpencall Practice admin run by AI · opencall.ai | still up |
| 2026-06-01 | YCMarengo AI-Native Engineering Firm designing Data Centers · marengox.com | still up |
| 2025-01-01 | An AI teammate that automatically updates your customer-facing docs · promptless.ai | still up |
| 2026-01-01 | YCCaretta Realtime AI for Sales Calls · caretta.so | still up |
| 2025-06-01 | Robots, parts & RL envs & evals - delivered in 48 hrs / pickup in SF. · roboticscenter.ai | still up |
| 2025-09-01 | AI agents for on-call · deeptrace.com | still up |
| 2023-06-01 | Using generative AI to call insurance for healthcare clinics · healthharbor.co | still up |
| 2026-06-01 | YCSpeko OpenRouter for Voice AI: one API, every call on the best speech model · speko.ai | still up |
| 2025-09-01 | YCLunaBill AI Voice callers for healthcare billing teams · lunabill.com | still up |
| 2025-01-01 | YCPeppr AI In-call AI teleprompter that helps reps close enterprise deals · usepeppr.ai | still up |
| 2024-06-01 | Voice AI to automate complex phone calls for healthcare providers · heyrevia.ai | acquired |
| 2022-06-01 | Turns your sales calls into CRM data, automatically. · paragon.ai | still up |
| 2026-06-01 | YCDialogus The AI-native contact center · dialoguslabs.com | still up |
| 2024-01-01 | AI Website platform that grows revenue automatically · ion.design | still up |
| 2026-01-01 | Real-time Physics Simulations for Industrial Facilities & Data Centers · inviscidai.com | still up |
| 2024-09-01 | AI Data Center Design · archilabs.ai | still up |
| 2024-06-01 | YCCallback Effortless AI automation for business operations · getcallback.ai | still up |
| 2023-01-01 | YCFabius AI to improve Sales Calls · fabius.io | gone |
| 2025-01-01 | AI-native remote operations center for hardware fleets · dartboard.ai | still up |
| 2021-06-01 | YCSequin Sequin is building AI Voice Agents to automate collections calls for… · sequinai.com | still up |
| 2026-01-01 | YCLucent AI that automatically improves products from user behavior · lucenthq.com | still up |
| 2017-01-01 | YCTetra AI notetaker for phone calls · asktetra.com | acquired |
| 2020-01-01 | Glisten AI automatically categorizes and tags e-commerce product data. · glisten.ai | gone |
| 2021-06-01 | YCOpkit AI phone calls for the US healthcare industry · opkit.co | gone |
How this compares
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.