Top Artificial Intelligence Startups in California, US

Tasklet is building the AI platform companies use to run their business on agents. Our customers describe an outcome in plain English, and Tasklet gets the work done—across SaaS tools, APIs, browsers, files, spreadsheets, and internal systems. Agents can respond immediately or run business processes in the cloud 24×7 on a schedule or in response to events. Every Tasklet agent gets its own cloud computers, filesystem, database, and browser. Tasklet agents are built to do real work at real companies where many people are involved in each function. Teams share agents, knowledge, connections, and conversations, while administrators control access, behavior, and spend. Tasklet users can choose among models and delegate work to faster, cheaper ones—giving companies one flexible platform instead of a growing pile of disconnected AI seats. We compete with ChatGPT Work and Claude Cowork. OpenAI and Anthropic have their own models, massive funding, and existing distribution. We have a small, exceptional team, the freedom to use the best AI tech from any vendor, and a laser focus on the problems of real-world businesses where making agents simple, trustworthy, and easy to control matters just as much as making them intelligent. The labs will define what intelligence can do, but Tasklet will define how businesses put that intelligence to work.

We're a passionate A+ team solving Security challenges for enterprises using AI Agents. Customers include leading multi-billion dollar enterprises and Fortune 500. Team split across the US and India.

Cracken is a fast-growing Silicon Valley-based startup built by elite nation-state and commercial operators who defended critical cyber infrastructure during the war in Ukraine, researched AI and cybersecurity at MIT and Kyiv Polytechnic, and led teams at Apple, Google, Palo Alto Networks, HackerOne, DIU, Comcast, HP, and more. We tame Cracken, an AI Agent for Cybersecurity with human-in-the-loop. Our flagship product, is an agentic AI copilot drastically scaling cyber assessments for enterprises and governments.

Traba is building a world where the global supply chain operates at peak efficiency. We connect industrial businesses with reliable workers to fill open shifts and empower both businesses and workers to reach their full productivity and potential.

What are we building? Software was supposed to help us. Instead, it swallowed the working day. Everywhere you look people are buried under the burden of software. We are starting with automating email, turning it from a burden into a powerful competitive edge for people who grow businesses and build a reputation in their inbox. Think real estate, consultants, recruiters - people who spend hours on emails, scheduling, and follow ups. Unlike other startups, we're a pure-play applied AI company and not a SaaS company with AI features hastily bolted on. We use the best techniques (fine-tuned open-source models, tool use, and retrieval-augmented generation), and as a result, users send 53% of the email drafts we generate. How has it been going? From $1M to $25M ARR in the last 10 months, making us the fastest growing startup ever in the UK. We are backed by top-tier investors including: Marc Benioff (Founder of Salesforce), Harry Stebbings (Founder of 20VC), Douwe Kiela (Founder/CEO Contextual AI/Creator of RAG), David Singleton (Former CTO of Stripe), Des Traynor (CTO Intercom), Madrona (First Investors in Amazon/Snowflake). What do we value? We're very intentional about adding new people. We believe a small team of exceptional people working hard at a problem they care about will always outperform a larger, more unfocused team. That means you'll need to bring an intensity to this role that might not be expected at other companies but it also means you'll be fast-tracked into roles with greater responsibilities far earlier.

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. With a talent network of more than 30,000 people across hundreds of domains, Mercor is building a new category of work where expertise powers AI advancement. While computing power and engineering talent have advanced rapidly, AI models can only improve when they learn from real human expertise across disciplines like law, medicine, coding, and finance. Mercor bridges this gap by connecting top professionals with frontier AI labs, enabling them to share insights, provide expert feedback, and shape the reasoning capabilities of next-generation models. Backed by $350 million in Series C funding led by Felicis, with Benchmark, General Catalyst, and Robinhood Ventures, Mercor is now valued at $10 billion. At its core, Mercor’s culture thrives on impact, agility, and growth. Mercor powers its teams to build at the frontier of technology.

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GoodGoblin.ai is the ultimate "Admissions Operating System" designed to democratize elite college guidance. We believe expert mentorship shouldn't be a luxury for the few, so we built a data-driven platform that levels the playing field for every student. Our Four Pillars of Success Our platform guides students through the entire journey—from freshman strategy to senior year submission:   Architect (Grades 9–11): Builds a multi-year roadmap and identifies "profile gaps" early on.   Strategist (Grades 10–12): Uses data to find the perfect mix of "Reach," "Target," and "Safety" schools.   Editor (Grades 11–12): Provides 24/7 AI narrative coaching with instant feedback on clarity, story, and structure.   Analyst (Grade 12): Performs a final holistic audit to calculate real-time acceptance probabilities before you hit submit. Why It Matters Proven Results: Our users see a 31% boost in admission odds, with 97% of students securing a spot at a Top-30 university.   Radical Transparency: We show students exactly why an essay works using the same metrics admissions officers use.   Engineering Precision: We turn "guessing" into "optimizing" by analyzing millions of data points from successful applicants.   Join us in our mission to make the path to a dream university predictable, affordable, and stress-free for over 50,000 students worldwide.