Top Artificial Intelligence Startups in San Francisco, CA

Welocalize is a company that provides services to transform content into multiple languages. We have a network of over 250,000 linguistic resources and operate in North America, Europe, and Asia. We offer high-quality training data solutions for machine learning by combining technology and human intelligence to collect, annotate, and evaluate all types of content.

Sahova is building the first AI-native operating system for construction. We believe the future of construction isn't another project management tool—it's an intelligent operating system that understands every project, document, conversation, and workflow. Our mission is to simplify and advance how builders and contractors run their businesses through AI.

Uplane (YC F25) replaces marketing agencies with AI. We generate hundreds of ads with matching landing pages and steer the ad spend across channels like Meta, Google, LinkedIn and others. By connecting to CRM and ERP data, Uplane learns what drives profits and continuously improves campaigns. Companies waste billions on bad ads, mismatched landing pages, and poor budget allocation. Uplane fixes this by replacing a patchwork of agencies, spreadsheets, and siloed tools with one self-improving system. The result: Higher ROAS for enterprises and effortless, expert-level marketing for SMBs.

We are an AI-native quality engineering partner helping startups and enterprise teams build, scale, and deploy software with confidence. Engenious specializes in: • AI model validation & red-team testing • Advanced QA automation frameworks • Mobile test architecture at scale • Left-shifted, AI-powered quality processes In 2025 alone: • 150+ releases shipped across web, mobile, and backend • AI-powered workflows reducing test cycles from weeks to days • Engineering teams trained through Engenious University in next-generation QA methodologies Our teams embed directly with yours to reduce risk, accelerate release velocity, and improve product reliability. If you're deploying AI-powered systems or scaling mobile platforms, quality discipline is no longer optional. Recognized by Clutch as a highly rated QA & automation partner. Learn more at engenious.io

Viewlocked is an AI-powered travel planning and booking marketplace connecting travelers with verified local partners across stays, experiences, guides, tours, rentals, transportation, and local services, all in one place. We built Viewlocked to solve a simple problem: planning a trip today means juggling a dozen different platforms just to book a hotel, find a tour, rent a scooter, and hire a local guide. Nothing talks to each other, and by the time travelers discover the best local experiences, they're often already locked into their plans. Our AI assistant, VLX, changes that. Travelers build their trip, and VLX surfaces relevant partners in real time based on their dates, destination, and preferences, letting them discover and book everything directly within their itinerary before they even arrive. We officially launched in June 2026 and have already onboarded 60+ verified partners across 15+ countries, with zero paid marketing spend. We've been featured in Travel Daily News International and Travel and Tour World, and we're actively building a global network of travel partners as we scale. For travelers, Viewlocked means one platform for the entire trip. For partners, it means visibility at the exact moment traveler intent is highest, with structured bookings and a simple, transparent commission model. We're a small, fast-moving founding team building something we believe travel has been missing for a long time. If you're passionate about travel, startups, or building at an early stage.

Suitpax's AI capabilities include advanced expense management with real-time tracking and automated reporting, as well as intelligent business trip organization with one-click planning. This approach helps businesses save time and optimize resources by simplifying travel management processes. Additionally, Suitpax is committed to delivering personalized services tailored to each traveler's unique needs, whether for business or leisure.