Companies

Sanctuary Computer
Sanctuary Computer is a studio that partners with creative and technical directors to support project teams, define strategy, and lead internal projects.
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Sanctuary Computer / XXIX
At Sanctuary Computer and XXIX we’re building a different type of design technology shop – one that prioritizes close collaboration between the client and the craftsperson. Our projects range from design-forward websites, to robust web apps, to native mobile development. We’re building a radically different kind of organization that values autonomy, growth, transparency, and shared responsibility.
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Sangoma Technologies
Sangoma is a leading business cloud, hybrid, and on-premises communications platform with reliable in-house solutions alongside network and security services. They provide a single-vendor framework and offer reliable, affordable, and fully integrated UCaaS solutions featuring telephony, meetings, messaging, and more.
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Sanity
We’re helping companies make their web content more accurate, current and understandable for AI assistants so customers/consumers can make better decisions.
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Sarama
We’re building smart collars and other devices to translate dogs into our language—using audio and motion data. We want to know what our dogs want and are on a mission to rethink the entire healthcare & training industries as we better understand them. We are mostly software people and have built our own models for dogs (soon expanding to my new cats).
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Saris AI
We are a YC alum founding team rethinking back-office workflows for banks and credit unions. We're tackling a $100 billion problem with automation solutions that require long-context reasoning, tool orchestration across many critical systems, and strict compliance loops.
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Sarj.ai
Sarj.ai builds products for Saudi Arabia / GCC. We are building a suite of products across verticals such as education, finance and media. We are early and a small team but are growing rapidly. Tech in KSA is growing rapidly and we feel like we are on the cusp of hypergrowth in an extremely exciting market.
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Saving Bitcoin
Saving Bitcoin designs post-quantum cryptography that secures Bitcoin against quantum threats and transitions Bitcoin into the post-quantum age; aims to go beyond BIP-360 stopgap.
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Saypien
We're building an AI-native SaaS platform that helps companies extract actionable insights from data in real-time. Think of it as an architectural intelligence layer that ingests heterogeneous data, learns your business context, and delivers decision-ready guidance.
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Scale Medicine
Scale Medicine is building an AI assistant for the biopharma industry, streamlining drug development workflows by connecting external scientific knowledge to company documents and data. They are partnering with the biggest biopharma companies in the industry on new life-saving medicines and are supported by top-tier investors.
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