You asked about B2B
46 people built something like it. 46 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2022-01-01 | YCWingback Wingback provides tools and APIs for SaaS pricing and packaging. · wingback.com | gone |
| 2022-01-01 | YCngrow.ai Low-code SaaS for marketing in push notifications · ngrow.ai | gone |
| 2022-06-01 | Digital Bank for Freight Carriers in Africa. · pivo.africa | gone |
| 2022-06-01 | Uncover high-fit leads already silently engaging with your brand · customeros.ai | gone |
| 2022-01-01 | YCAlima Fresh procurement made easy · alima.la | gone |
| 2022-01-01 | YCPeakPath Smartwatch powered coaching to improve teams sustainable performance · peakpath.com | gone |
| 2022-06-01 | AI-assisted CX tool built with your knowledge. · zoltarlabs.com | gone |
| 2022-06-01 | The Unified API for Business Financial Data · integrationlabs.co | gone |
| 2022-06-01 | YCDelegasi Automated accounting service for small businesses in Indonesia · delegasi.co | gone |
| 2022-01-01 | YCFlike Flike's AI crafts sales emails that convert · flike.app | gone |
| 2022-01-01 | Customer Engagement software on top of BigQuery/Snowflake · castled.io | gone |
| 2022-01-01 | YCPloomber Heroku for AI · ploomber.io | gone |
| 2022-01-01 | Promotion management platform · cherry.ai | gone |
| 2022-06-01 | Card issuer for Africa · bridgecard.cards | gone |
| 2022-06-01 | No-code data curation for LLM fine-tuning and evaluation. · airtrain.ai | gone |
| 2022-01-01 | YCCriya AI that builds GTM assets in seconds · criya.co | gone |
| 2022-06-01 | Claim solar incentives with AI · jasmine.energy | gone |
| 2022-01-01 | YCPelm Plaid for utilities · pelm.com | gone |
| 2022-01-01 | YCVessel Developer-first, native integration platform for GTM tools · vessel.dev | gone |
| 2022-01-01 | YCCoffeeAI Instant, hyper-personalized, AI-powered outreach messages · get-coffee.ai | gone |
| 2022-06-01 | API for Retrieval Augmented Generation · superpowered.ai | gone |
| 2022-06-01 | The IAM Policy Copilot · slauth.io | gone |
| 2022-01-01 | YCFinnt AI Agents for CFO and Finance teams · finnt.com | gone |
| 2022-06-01 | Decentralized, anonymous, and accountable identity on Web3. · notebooklabs.xyz | gone |
| 2022-06-01 | YCDialect AI copilot for forms, questionnaires & RFX · usedialect.com | gone |
| 2022-06-01 | AI Sales Rep for Website Intent Signals · penguinai.app | gone |
| 2022-06-01 | YCStellar AI-powered business goals · stellarapp.io | gone |
| 2022-01-01 | YCAklimate Software for enterprises to track and reduce supply chain emissions · getaklimate.com | gone |
| 2022-01-01 | YCLivedocs A New Kind of Notebook for Data Storytelling · livedocs.com | gone |
| 2022-06-01 | YCGrai Open source version control for metadata · grai.io | gone |
| 2022-01-01 | YCValari Embedded finance platform for LatAm. · valari.co | gone |
| 2022-01-01 | Bioinformatics pipelines in the cloud · flowdeploy.com | gone |
| 2022-06-01 | YCLotus Open-Core Pricing and Billing Engine · uselotus.io | gone |
| 2022-01-01 | Make all your live SaaS demos impactful: close more ARR faster · demogorilla.com | gone |
| 2022-01-01 | YCUberduck Fast, professional content creation with AI audio, image, and video. · uberduck.ai | gone |
| 2022-06-01 | YCMercator AI-assisted data analytics · mercator.tech | gone |
| 2022-01-01 | Rippling for trucking · drivingforce.co | gone |
| 2022-06-01 | YCManatee DocSend for demos. · trymanatee.com | gone |
| 2022-06-01 | serverless platform for real-time data · denormalized.io | gone |
| 2022-06-01 | Confidently ship analytics code faster with fewer errors · ilumadata.io | gone |
| 2022-06-01 | YCBricksAI Streamlining LLM application management for enterprises · trybricks.ai | gone |
| 2022-06-01 | AI powered web & mobile automation · dev-tools.ai | gone |
| 2022-01-01 | YCSuggestr Amazon-level personalization for Shopify merchants · suggestr.co | gone |
| 2022-06-01 | YCRuleset The SaaS Decision Engine for Lenders · ruleset.ai | gone |
| 2022-01-01 | YCSendo The best SMS/RCS API for startups · sendo.dev | gone |
| 2022-01-01 | YCKable Usage-based billing for API companies · kable.io | 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.