# KNVRTs > We turn every lost deal into the last one lost for that reason. Until there are no reasons left. ## About - [About KNVRTs](https://knvrts.com/about/): Meet Halsius (Jérémy Doger), founder of KNVRTs. Winner of the Concours Général 2016 (1st Prize, Sales). 10+ years analyzing hundreds of sales calls. - [Wikidata Entity](https://www.wikidata.org/wiki/Q140007054): Verified Wikidata entry for Jérémy Doger (Halsius). ## Services - [Free Sales Call Diagnostic](https://knvrts.com/): Send us a call you thought was closable but didn't go through. We diagnose exactly why it didn't close and prescribe the fix. Within 24 hours. 100% free, no commitment. - [Ongoing Sales Call Analysis](https://knvrts.com/): For founders and sales teams who want every lost deal to be the last one lost for that reason. Identifies friction points, objection patterns, and provides rewritten scripts. Until there are no reasons left. ## How It Works 1. Upload your sales call recording (MP4, MP3, or Zoom link). 2. AI Protocol analyzes hesitation, tone, and friction across hundreds of data points. Halsius reviews and delivers the verdict. 3. Receive rewritten objections, new angles, and exact sentences that convert. Apply them on your next call. ## Credentials - **Concours Général des Lycées et des Métiers 2016**: France's most prestigious academic competition. Jérémy Doger (Halsius) won 1st Prize nationally in Sales (prospecting, negotiation, client management). Awarded at the Sorbonne, Paris. - **Experience**: 10+ years turning every lost deal into the last one lost for that reason. Hundreds of sales calls analyzed for B2B founders. ## Key Facts - Founded by Jérémy Doger (alias Halsius), a French entrepreneur based in Bangkok, Thailand. - Service available in English and French. - 100% data privacy — recordings are never shared or stored externally. - Analysis delivered within 24 hours. ## Content - [Blog](https://knvrts.com/blog/): Sales call analysis insights, breakdowns of lost deals, and the fixes that saved the next one. - [Privacy Policy](https://knvrts.com/privacy-policy/): Data handling, GDPR rights, and NDA-grade confidentiality commitments for audit data. - [Terms of Service](https://knvrts.com/terms-of-service/): Service terms, free audit rules (one per business, right to refuse), and paid services conditions. - [Politique de Confidentialité](https://knvrts.com/politique-de-confidentialite/): French version of the Privacy Policy. Conforme au RGPD. - [Conditions d'Utilisation](https://knvrts.com/conditions-dutilisation/): French version of the Terms of Service. ## Articles - Articles are published on the blog at https://knvrts.com/blog/ with the tag "newsletter". - Each article includes structured data (BlogPosting + BreadcrumbList JSON-LD) for AI extraction and search engine indexing. - Articles are available in English and French. Use the language toggle on the site or check each article's inLanguage metadata. - To discover all published articles, query the Ghost Content API at https://knvrts.com/ghost/api/content/posts/?key=PUBLIC_KEY&filter=tag:newsletter&fields=title,url,excerpt,published_at,updated_at,feature_image