Top Tech Startups in California, US in 2026

TrueFoundry is an Enterprise Platform as a service that enables companies to build, ship and govern Agentic AI applications securely, at scale and with reliability through its AI Gateway and Agentic Deployment platform. Its AI Gateway encompasses a combination of - LLM Gateway, MCP Gateway and Agent Gateway - enabling enterprises to manage, observe, and govern access to all components of a Gen AI Application from a single control plane while ensuring proper FinOps controls. Its Agentic Deployment platform enables organizations to deploy models on GPUs using best practices, run and scale AI agents, and host MCP servers - all within the same Kubernetes-native platform. It supports on-premise, multi-cloud or Hybrid installation for both the AI Gateway and deployment environments, offers data residency and ensures enterprise-grade compliance with SOC 2, HIPAA, EU AI Act and ITAR standards. Leading Fortune 1000 companies like Resmed, Siemens Healthineers, Automation Anywhere, Zscaler, Nvidia and others trust TrueFoundry to accelerate innovation and deliver AI at scale, with 10Bn + requests per month processed via its AI Gateway and more than 1000+ clusters managed by its Agentic deployment platform. TrueFoundry’s vision is to become the Central control plane for running Agentic AI at scale within enterprises and empowering it with intelligence so that the multi-agent systems become a self-sustaining ecosystem driving unparalleled speed and innovation for businesses. To learn more about TrueFoundry, visit truefoundry.com.

PurposeMed was founded in 2019 with the mission of improving access to complex care for underserved communities. We’ve grown quickly in our first few years, and now our exceptional team serves thousands of patients each month across our multiple verticals. PurposeMed consists of three complex care business units: Freddie, Frida, and Foria, and partners with Affirming Care Pharmacy. Freddie is focused on improving sexual health through education, prevention, and treatment with a focus on the LGBTQ2S+ community—we’re the #1 rated PrEP provider in North America, serving patients in both Canada and the USA! Frida is changing the lives of patients with easier access to adult ADHD diagnosis, and fast and affordable treatment. Foria Clinic provides trans, non-binary, and gender-diverse Canadians with gender-affirming healthcare. Affirming Care Pharmacy is a specialty pharmacy with locations in Calgary, Alberta, and Mississauga, Ontario. This partnership provides our patients with an end-to-end healthcare experience, from treatment, to prescription delivery, to continuous affirming care. We’re proud to be ranked #2 on Deloitte’s 2024 list of Canada’s 50 fastest-growing tech companies and recognized as one of Canada’s Most Admired Corporate Cultures for two consecutive years. Driven by a strong mission, our team is passionate about making healthcare accessible to those who need it most—and we make sure to have fun along the way!

Kritik is an early-stage but fast growing ed-tech startup working passionately to upgrade college classroom experience with our fun and automated peer-to-peer learning technology. We launched our product into +200 universities and are ready to scale in the upcoming year. We are serial entrepreneurs, backed by some of the top players in the Canadian startup ecosystem including ApplyBoard and GarageCapital. We are looking for smart and motivated people to join the startup and be part of the fast movement in changing the way students are tasked and assessed. Recently, we launched VisibleAI (a completely new product), for which we have developed Artificial Intelligence (AI) for educators and institutions and a platform for academic integrity to equip educators with practical, ready-to-use strategies and prompts while maintaining academic integrity and fostering learning. The goal is to ensure educators are well-equipped to leverage AI, the effectiveness of PBL, and related concepts. The product offers transparency by detecting and reporting AI-generated content, helping educators maintain rigorous academic standards while embracing AI's educational potential.

nOps is an automated cloud optimization platform that makes it easy to allocate and manage cloud usage, commitments, and spend. Managing $4B+ in annual cloud spend, nOps helps companies of every size, from fast-growing startups to global enterprises, reclaim millions in wasted cloud costs. Cloud waste is one of the fastest growing challenges in tech. nOps tackles it by leveraging proprietary ML modeling and AI-powered automation to guide organizations toward the right commitment strategy. The platform eliminates manual provisioning entirely, delivering maximum cost savings without sacrificing reliability, so teams can focus on building and innovating. Trusted by innovative brands around the world, nOps has been recognized as a G2 Top 50 Security Product and G2 Leader for Winter 2025, is an AWS Advanced Technology Partner, and a proud FinOps Foundation Member with our CEO serving on the FinOps Foundation Governing Board.

WorkHelix is building a workforce management platform to help our customers execute their missions to bring value to their customers. We are starting with a compensation management tool suite, providing a source of truth for employee data with applications to facilitate faster and more effective talent investment.

At Teleskope, we believe that data security and privacy is shifting left, and should be automated and enforced from within at the earliest stages. We are building a developer-first data security platform that provides companies with complete and actionable visibility into their continuously growing data.

Stronghold creates virtual payment networks that enable instant settlement and interoperability between legacy and new payment networks. Check us out! youtube.com/@Strongholdpay/featured

Our mission is to automate how humans acquire and master skills. The first step in our journey is to build the "AI stack for education" to transform the credentialing and publishing industries with the best tools to build curricula, assessments, and apps at scale. After winning #1 (of 1,500) in the Vercel AI Accelerator we bootstrapped to millions in revenue and profitability while delivering over 200MM assessments via our AI platform. We also just closed our first strategic investment to scale faster and deploy our solution to millions of additional learners. We're a lean, talented team that rewards agency, curiosity, and shipping real products that directly impact the lives of millions. "Memorang has literally the best gen AI results I've seen applied to a real world problem." - Director of Trust and Safety, Google Deepmind

Noyo is building the digital infrastructure to bring health insurance enrollment into the modern era. Noyo replaces today’s manual data entry and cumbersome legacy systems with a powerful API platform that enables faster, more accurate data exchange between health insurance platforms and their carrier partners.

Karbon is the global leader in AI-powered practice management software for accounting firms. We provide an award-winning cloud platform that helps tens of thousands of accounting professionals work more efficiently and collaboratively every day. With customers in 40 countries, we have grown into a globally distributed team across the US, Australia, New Zealand, Canada, the United Kingdom, and the Philippines. We are well-funded, ranked #1 on G2, growing rapidly, and have a people-first culture that is recognized with Great Place To Work® certification and on Fortune magazine's Best Small Workplaces™ List.