Top Tech Startups in San Francisco, CA in 2027

Most AI systems are built as one-size-fits-all solutions. Powerful in benchmarks, brittle in production. In a real workplace, they fall short. Not because they lack intelligence, but because they don't know your business. They're missing your domain knowledge, your workflows, your team's preferences, and the unwritten rules that make your organization run. That gap between general intelligence and operational context is where most enterprise AI implementations fail. Stochastic was built to close that gap. We give enterprises a private, tailored AI system they fully own. One that learns continuously from real behavior and user feedback, adapts to their specific environment, and gets sharper the longer it's in use. Because the system is theirs, so is the data. No shared model training, no compromised proprietary information. Just an AI that knows your organization as well as your best employee does, and keeps getting better. Our systems are already live in production, with a current focus on healthcare providers, one of the most regulated and context-dependent industries there is. Our agents handle inbound calls, fax processing, prior authorization, and the administrative work that pulls clinical staff away from patient care. It's a proving ground for the kind of high-stakes, high-context AI we're building toward at scale. Stochastic started with a group of Harvard AI systems researchers who built the first Bayesian and LLM inference accelerators, along with a real-time speech and NLP engine fast enough to hold a live conversation. The team has since grown to include engineers and researchers from Stanford, CMU, UIUC, NVIDIA, and Meta, all building toward the same goal: AI that belongs to your organization, not to anyone else.

DeFi enables anyone to perform jobs previously reserved to banks like market making or lending. This unlocks incredible yield opportunities for investors. However, investing in DeFi is incredibly complex. We are on a mission to make DeFi accessible to all. Our multichain trading platform makes it easy for anyone to put their assets to work on DeFi. We are transitioning web2 to web3.

We have created an app called Grate,the number 1 first food rating, snapping and reviewing app. While most other apps rate restaurants we rate food. We are food-centric and food first. Using this approach, we can harvest a great amount of insight that we can provide to restaurants to help streamline their offerings. The app will make sure that no person ever goes to a restaurant and orders the wrong dish, so typically someone can go to a restaurant, logon to Grate and see the best rated dishes in that restaurant The restaurant, food and beverages industry is a 3 trillion-rand industry in South Africa and we have built the platform to be fully scalable allowing the company to be local with global aspirations. Summary The App provides: a clear view on a dishes ‘value for money’ coefficient which is of great value to customers, events and festivals marketing and engagement platform and a fast-food delivery service

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We are on a mission to democratize access to enterprise-grade technology for SMBs across India and emerging markets. We believe that small businesses deserve the same digital firepower as Fortune 500 companies—without the enterprise price tag. What We Do We don't just build websites; we engineer growth engines. By fusing 25+ years of industry expertise with cutting-edge Generative AI, we deliver high-performance Digital Ecosystems. Our core pillars include: Next-Gen Web & E-Commerce: High-performance Headless architectures using Next.js, React, and Tailwind CSS. AI-Powered Marketing: Pioneering GEO (Generative Engine Optimization) and AIO (AI Optimization) to ensure brands rank in AI search engines like Perplexity and ChatGPT. Enterprise Operations: Streamlining business logic with ERPNext and custom CRM implementations. Our Vision: The "Operating System for SMBs" We are actively evolving from a premium service agency into a product-led SaaS powerhouse. We are building "FactoryJet OS"—a proprietary, multi-tenant platform powered by PayloadCMS that allows businesses to manage their entire digital footprint, from content to customers, in one unified dashboard. Why Join FactoryJet? ? AI-Native Workflow: We don't just talk about AI; we build with it. We leverage Gemini 1.5 Pro, Claude 3.5, and custom AI Agents to automate the mundane, allowing our team to focus on high-level architecture and strategy. ?️ Modern Tech Stack: We work on the bleeding edge: Next.js (App Router), TypeScript, PayloadCMS, MongoDB, Python, and Open Source ERPs. ? Remote-First & Outcome-Driven: We operate with a high-performance "Digital Nomad" culture. We value code quality, architectural elegance, and business impact over hours clocked.

We're a innovative autonomous mobility solution company, is dedicated to revolutionizing transportation through the deployment of driverless, electric, multi-passenger vehicles. Specializing in the planning, execution, and management of cutting-edge autonomous shuttles, Mozee serves both public and private communities. Their mission is to safely bridge the gap in first-mile, last-mile mobility networks within controlled speed areas, thereby enhancing the connection between people, places, and services. ‍ Driven by the vision of universal mobility, Mozee is committed to making transportation accessible to everyone. Each live deployment provides a wealth of data and insights, which the company then harnesses to develop vehicle-agnostic, edge solutions. These advancements are propelling not only safety measures and accessibility but also artificial intelligence and driverless operating capabilities of autonomous platforms. Consequently, they are championing the uptake of these new, innovative, and eco-friendly transport solutions. ‍ At the forefront of Mozee's ambition is the establishment of a fully autonomous vehicle fleet, supported by a robust infrastructure. They are guided by the conviction that freedom of movement is essential to progressing in life. This belief fuels their initial focus on the 45% of Americans currently underserved by mass transit systems, driving their efforts to create a more accessible and sustainable future for all.

Cut through the findings flood, holistically understand risk, automate prioritization, and collaborate on fix remediation — all in one platform.

Untapped Ventures is an early-stage VC firm backing technical AI founders building the next generation of AI-Native B2B startups - from Agentic AI and Vertical AI to AI Infrastructure. We lead, co-lead, and follow Pre-Seed and Seed rounds with $500K-$2M checks for AI startups with a focus on Native AI, Frontier AI, Embodied AI, Deep Tech AI, and AI Convergence. Our mission is to help transform the lives of 1 billion people through technology by combining early capital with hands-on growth expertise and access to a powerful network of advisors, operators, and investors.

Trial Library is an AI-native platform that matches cancer patients to clinical trials at the point of care. We connect patients, providers, and biopharma sponsors by making trial access faster, simpler, and built into routine care. Our team guides patients through the trial lifecycle while providers stay in the loop and patients stay in their care.