Top Tech Startups in Silicon Valley in 2027

HexGrid Cloud is building the infrastructure that makes powerful AI models accessible to everyone. We're creating a private AI cloud where developers, creators, and AI teams can deploy cutting-edge generative models, launch ready-to-use ComfyUI workflows, and access dedicated GPUs without the complexity of managing infrastructure. Whether you're generating cinematic AI videos, building image-generation pipelines, fine-tuning models, or deploying production AI applications, HexGrid gives you the compute, tools, and flexibility to move from experimentation to production. Our platform brings together three core capabilities: - ComfyUI Cloud: Launch preconfigured image and video generation workflows with models like MiniMax H3, Wan, LTX, and FLUX. Bring your own models, custom nodes, and LoRAs. - On-Demand GPU Cloud: Access dedicated NVIDIA GPUs, including H100, H200, A100, and B200, with transparent pricing and full control over your environment. - AI Model APIs: Integrate powerful AI models into applications without managing the underlying infrastructure. We believe the future of AI should be open, flexible, and accessible. Developers shouldn't need to become infrastructure experts to build with the latest models, and creators shouldn't be limited by restrictive tools or shared computing environments. Our mission is simple: Make powerful AI infrastructure as easy to use as the applications built on top of it. We're building for a future where anyone can create, experiment, and scale with AI—on their own terms.

Callab AI builds AI voice and text agents for enterprise contact centers. We help companies automate customer conversations while keeping the telephony, CRM systems, and workflows they already rely on. Many contact centers run on established on-premises phone systems. Bringing AI to those environments is an infrastructure challenge as much as a modeling challenge. Our SIP-native telephony stack connects directly to systems such as Cisco CUCM, Avaya, and Mitel, so customers can deploy AI agents without replacing their phone infrastructure. Our platform lets teams build agents around their knowledge and business rules, connect them to tools that complete customer tasks, and supervise conversations in real time. When a conversation needs human judgment, a team member can take over with the context preserved. Use cases include customer support, call routing, appointment scheduling, lead qualification, and outbound campaigns. Backed by Y Combinator, We serve customers across three continents and are expanding in the US. Our work spans enterprise software, AI, and the telecom infrastructure that makes reliable customer service possible. We're building the next generation of contact-center automation. Explore our open roles to help bring it to more businesses.

Lohm is a healthcare technology company in stealth. We build agentic systems that do real administrative work across healthcare organizations. Systems that take an action in the real world and prove the outcome actually happened. Lohm Technologies, Inc. is a Delaware corporation based in California.

Lead is a bank that provides financial services for individuals and businesses. It also operates a Banking-as-a-Service platform that helps fintech companies build their own banking products. The platform offers solutions including lending, transfers, cards, and accounts for partners.

Titan operates 5 companies and has over 300 employees globally. We're changing the way we work, and think about some of the biggest industries. Come be part of the change with us!

We’re building the intelligent grocery deal-finder that saves consumers money on every shopping trip. Users input lists via text, voice, or photo, and our AI maps the cheapest regional store combination in seconds. I’ve validated the demand with a 3,000-person active waitlist and working MVP, backed by my background in product and executive experience in $50M+ ARR companies. I’m looking for an elite technical co-founder to build our core AI matching engine and data pipeline.