Top Artificial Intelligence Startups in San Francisco, CA

Imagine websites that adapt to every visitor dynamically, driving revenue autonomously. That’s the future Fibr AI envisions.
Founded by serial entrepreneurs Ankur Goyal (2x) and Pritam Roy (3x) — with backgrounds from IITs and Stanford — we spotted a gap: today’s static websites fail marketers. Fibr AI (fibr.ai) is an enterprise-grade AI Agents platform, building an AI-CRO (Conversion and Revenue Optimization) Agentic Workforce built for consumer marketers that automates optimization workflows in marketing - experimentation, personalisation and performance - to enhance web experiences and drive conversions at scale. This enables companies to run 100x more experiments at 10x the speed of traditional CRO methods, and almost at half the cost of fragmented tools, agencies, or experts. Early results with design partners show promise — think 1,500 tailored landing pages to drive ~20% conversion uplift. Fibr AI integrates seamlessly with existing Martech stacks like CRO tech stack, CDPs, ad platforms, and email systems to ensure that website experiences reflect all the data and insights generated across those channels, making the website an intelligent, responsive part of the marketing ecosystem. Fibr AI eliminates the bottleneck of current CRO - relying on human resources or developers, and replaces traditional CRO agencies (10x market size to CRO SAAS) offering a smarter, faster, and more efficient approach to conversion and revenue optimization. Our Vision? Turn interfaces (websites) into living, self-optimizing revenue driving engines.

Abacus.AI offers a state-of-the-art toolset that allows ML practitioners and data science teams to wrangle data, build real-time machine and deep learning features, upload ipython notebooks, monitor model drift, and set up CI/CD for machine learning systems. Our MLOps infrastructure helps you go to market, 10x faster than any other industry-leading platform. Our intuitive UX and holistic platform save you from orchestrating across multiple services, constantly reinventing the wheel, and having to deal with hard scale problems. Abacus.AI has been adopted by world-class organizations including several Fortune 500 companies.

A global platform that empowers sustainability: news, articles, startups, and a sustainability index. OUR STORY We were founded in Rome in 2014. From there, we established our presence online via our sustainability news portal: impakter.com PARTNERS We are partners of many UN organisations, NGOs, think tanks, research centers and Universities. PROFILES: Linkedin: linkedin.com/company/impakter Twitter: twitter.com/Impakterdotcom Facebook: facebook.com/impakterdotcom Instagram: instagram.com/impakter

FleetWorks automates the 2B phone calls and emails that the freight industry makes every year. We use voice synthesis, generative AI, and integrations with logistics systems to solve the largest cost in this industry - people. We are a fast-growing startup in the logistics space led by a founding team from companies like Airbnb and Uber Freight. We are a YC backed company. For more information about us, visit ycombinator.com/companies/fleetworks

Prime Intellect democratizes AI development at scale. Our platform makes it easy to find global compute resources and train state-of-the-art models through distributed training across clusters. Collectively own the resulting open AI innovations, from language models to scientific breakthroughs.

Amigo partners with healthcare organizations to deploy robust AI infrastructure that directly serves patients and providers. Our agents handle clinical workflows and patient engagement across the entire journey: pre-visit intake, care navigation, post-visit care plans, patient monitoring, and more. We own outcomes, not just delivery. For our customers, we're responsible for agent performance: clinical safety, continuous improvement, measurable patient outcomes. Agents operate autonomously within bounded clinical domains, with clear scope and handoff protocols. That scope expands as we validate performance across populations. We're backed by Tier 1 investors like General Catalyst, GSV Ventures, SVA, and CohoVC. Our work is validated with leading academic medical institutions. Our agents have reached 3M+ patient encounters and are on track to 10x this year.

Agentic Operating Procedures for your ERP. Execute at machine speed, learn from every exception, and improve with every transaction.

Augment’s mission is to build AI teammates that empower people to do their best work. We believe AI should amplify, not replace, human intelligence—removing friction, surfacing what matters, and helping teams stay focused on what counts. Our mission is embedded in how we build, scale, and support both our product and our people. When we eliminate busywork and enhance clarity, we unlock more time, more creativity, and more impact. That’s the future of work—and we’re building it today. Augment is the AI teammate platform that helps teams do their best work—faster, smarter, and with greater focus. By integrating directly into existing tools and workflows, Augment automates repetitive tasks, accelerates decision-making, and frees up time for strategic work. Today, teams across industries like logistics, customer operations, and sales use Augment to scale impact and unlock human potential. We’re a venture-backed startup driven by a culture of ownership, velocity, and curiosity. Our team is composed of builders, operators, and technologists who care deeply about solving real-world problems with practical AI. We’re growing fast—and always looking for thoughtful, mission-aligned people to join us.

Tenor is the AI for leadership development. We're on a mission to make every manager more effective at the world's best companies using the power of AI-powered role-play and coaching.