Top Tech Startups in San Francisco, CA in 2027

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.

We founded Standard Bots because we believe that automation can lead to a better world. By performing time-consuming, repetitive, and dangerous tasks, robotics gives us more time to be creative, spend time with loved ones, and chase our dreams. Though the potential of this technology is immense, when we looked around we saw a broken robotics market — one with enormous upfront costs, excessively complex software, and outdated support systems that make it impossible for many business to take advantage of automation’s vast benefits. So we assembled a team of experts to build a new robot, write custom software for it, and develop a new kind of subscription model that opens the world of automation to everyone. Expanding access to robotics doesn’t end when our customers receive their product either. We are committed to offering the best ongoing support to keep every RO1 operating at the cutting edge. Automation will define our future, so it must be widely available and applied toward a noble mission. We’ve taken the first step, and we’re just getting started.

Synhawk builds next-generation AI voice security for telco operators. Our platform detects deepfake voice and synthetic media in real time - running directly inside on-prem telco networks where latency, reliability, and security are non-negotiable. We're past the initial research phase. Our small, highly technical, founder-led team actively deployes the solution with major telco customers, working with real GPU clusters, air-gapped environments, and strict production SLAs. This isn't just a lab - it's AI research with immediate, measurable impact on systems that defend real communications infrastructure.

NS Consultancy Global is a security and risk consultancy dedicated to helping organizations operate with confidence in an unpredictable world. We work alongside boards, executives, and operational leaders to clarify risk, strengthen protection, and build resilient organizations that can withstand disruption. Our consultants bring deep experience across security strategy, risk management, and crisis preparedness. We combine analytical rigour with practical insight, turning complex threats into clear choices and actionable plans. Every engagement is tailored, discreet, and aligned with your broader business objectives—not treated as a standalone security exercise. Whether you are safeguarding people and facilities, preparing for critical incidents, or reassuring regulators and stakeholders, NS Consultancy Global acts as a trusted, independent partner. Our focus is simple: to help you anticipate risk, respond decisively, and protect what matters most.

BEBURAS is a decentralized venture technology syndicate building, funding and scaling technology ventures. We partner with founders, investors and enterprises across Europe, Africa, Asia and North America to provide venture building, fundraising, AI, technology delivery and strategic execution capabilities. By combining capital access, engineering expertise, AI and deep technology, we create a unified execution model for ambitious technology ventures. Core capabilities: Venture Building, Fundraising, Technology Delivery, AI, Technical Due Diligence, Strategic Partnerships, Deep Technology and Digital Transformation. One Partner. Total Execution.

Kinelo manages the new type of hybrid team that will emerge in the future: humans+AI working shoulder-to-“shoulder”. Our first product helps human software engineering teams deliver more efficiently and more reliably by assisting in coordination and engineering management. But it’s built on a foundational layer that ingests data, knowledge, and process across communications and systems, exposing that to humans and AI alike. Eventually, Kinelo will become a proper human+AI orchestration layer, managing entire companies, and our goal is to have Kinelo run Kinelo (we already dogfood it today). We’re looking for high ownership individuals to join our small team and shape its direction. We also just opened a new SF office and new hires will have the ability to help shape company culture, engineering practices, architecture, and roadmap. We’re well-funded (just raised another round), founded by a serial founder, anti-bureaucratic, and highly technical.