Top Tech Startups in California, US in 2026

We have built an AI powered food and exercise as medicine platform to improve treatments for Metabolic Syndrome and Reduce Readmissions.

Bitcot is an award-winning digital transformation company that leading organizations trust for custom solutions in web, mobile, AI, and automation. Fortune 500s and ambitious startups come to us for one reason: AI-powered software that actually moves the needle. Based in San Diego, California, we deliver end-to-end software development services for startups and enterprises across industries. We have expertise in custom development and integration, workflow automation, low-code tools, cloud migration, SaaS product development, QA testing, and more. With a strong focus on helping businesses drive tangible ROI through the latest advancements in AI and automation, we turn technology into measurable value. Our team of experienced developers, designers, architects, business analysts, and project managers works closely with clients to understand their unique challenges and accelerate their growth with web and mobile apps. You can find organizations such as ResMed, Stanford University, and Evolus in our portfolio, and we’ve built trust-based relationships with teams who come back to us project after project. Our clients tell us we're easy to work with because we keep things straightforward and deliver on our promises. Bitcot partners with you to turn complex problems into scalable solutions that push your business forward. Technology is a tool. Growth is the goal. We deliver both.

Monte Carlo is leading one of the most promising emerging categories in SaaS, Data Reliability. Monte Carlo helps data teams manage data reliability in the same way that New Relic helps engineering teams manage application reliability. As companies invest millions to become data-driven, Monte Carlo helps solve one of the biggest challenges data/analytics/ML teams face today: making sure data can be trusted at all times by minimizing data downtime. Founded in 2019 by Barr Moses and Lior Gavish, Monte Carlo is backed by Accel, GGV, the former Chief Technologist of Cloudera, and former Chief Data Scientist of the United States.

Just Appraised is modernizing local government processes related to real estate and property taxes. Our cutting-edge, AI-powered software, which leverages Natural Language Processing (NLP), replaces manual data entry to eliminate delays, backlogs, and errors. With hundreds of government entities across the United States relying on us, your work will directly help drive essential revenues and provide critical services to society.

Building for the cloud is easy. Building for the edge is still way harder than it should be. Source is changing that. We're building the data management stack for edge-first software — as simple and intuitive as the best cloud tooling, with data sovereignty baked in from the start. The edge era is here. We're building the infrastructure it runs on.

SprintFWD is a technology consultancy for fitness and wellness brands. We create best-in-class mobile and web experiences, helping companies retrofit existing businesses and launch new digital platforms and ventures. In addition, we selectively incubate products internally, with unparalleled experience and distribution in the fitness industry.

We’re a tight-knit team with deep experience in K-12 education, childhood development, and artificial intelligence, who came together to support parents in creating the best learning environment for their child.

Haystack News is the leading local & world news service on Connected TVs reaching millions of users and empowering them with a personalized newscast. We are one of the fastest-growing TV News companies in the world, and are already preloaded on 37% of all TVs shipped in the US! Haystack News already has direct relationships with all major TV companies (Samsung, Sony, Vizio, LG, etc) as well as hundreds of premium TV news channels including ABC News, CBSi, Bloomberg, and local TV stations for 90% of the country. Haystack News is redefining the future of TV news and we pride ourselves on our ability to move faster and execute better than anyone else in our industry. We accomplish this by working with the smartest people and staying on the cutting-edge. We measure ourselves by the impact we are having on individuals’ daily lives and on the television industry as a whole.

Boxbot is a group of engineering and operations professionals who believe in building technology that solves real problems, at scale. We’re starting with the challenge of last-mile logistics, which is the single most expensive part of any delivery. We have raised $20M to date and are just getting started. Our product integrates years of advancements in robotics and automation technologies into a scalable solution built to optimize e-commerce delivery.

We are on a mission to provide all pets with the quality health care they need from veterinarians and their caretakers. We aim to do this by modernizing the veterinary tech stack throughout a pet patient’s lifecycle from patient identification to preventive care, medical care, and monitoring & lifestyle. Existing vet tools are frustratingly hard to use, lack key features, and look like they are from the 90s. Our vision for a next-generation cloud platform includes a comprehensive medical record management system with delightful client communication tools. Predictive analytics will unlock clinical efficiencies, equip veterinarians with relevant medical data, and inform pet owners of proactive, tailored insights into their pets’ health.