Top Tech Startups in California, US in 2024

Reddit is home to thousands of communities, endless conversation, and authentic human connection. Whether you're into breaking news, sports, TV fan theories, or a never-ending stream of the internet's cutest animals, there's a community on Reddit for you. Reddit was founded by Steve Huffman and Alexis Ohanian in 2005 and was acquired by Condé Nast in 2006.

Founded in 2012, we are a remote-first company headquartered in San Francisco that solves development, operations, and security challenges in infrastructure so organizations can focus on business-critical tasks. Our tools manage both physical machines and virtual machines, Windows, and Linux, SaaS and IaaS, etc. And we're committed to supporting next-generation technologies, as well. We speak at conferences and write books related to application and infrastructure management. All our foundational technologies are open source and developed openly, and have been since 2010.

Scale accelerates the development of AI applications by helping computer vision teams generate high-quality ground truth data. Our advanced LiDAR, video, and image annotation APIs allow self-driving, drone, and robotics teams at companies like nuTonomy, Nuro, Voyage, Embark, Lyft, Pinterest, and Airbnb focus on building differentiated models vs. labeling data.

Databricks' vision is to dramatically simplify big data processing. It was founded by the team that created and continues to drive Apache Spark, a powerful open source data processing engine built for sophisticated analytics, ease of use, and speed. Databricks offers a cloud-based integrated workspace for big data that lets users go from data ingest, to visual exploration and production jobs, making it easy to turn data into value, without the hassle of managing complex infrastructure, systems and tools. Databricks is venture-backed by Andreessen Horowitz and NEA.

CAIS is the leading open-architecture financial product platform offering the independent wealth management channel access to a menu of alternative investment funds and capital markets offerings. We are a FinTech, B2B organization that is leveling the playing field by providing research, diligence, access, and execution of complex financial products.

ChowNow stands out among the typical platform in the world of online food ordering. We help local restaurants thrive by offering the sharpest digital tools and services to grow in the modern world. Everything we design puts local restaurants and their diners first. Our products include: websites, custom-made apps, access to the most popular online ordering hubs, marketing tools, and valuable customer data. Most importantly, our business revolves around principles of fairness and sustainability—when we say commission-free, we mean it. Diversity, teamwork, and mutual respect are among our core company values. We provide support and create opportunities for everyone on the ChowNow team. To this date, we’ve build over 20,000 apps for our restaurant partners—a first for our line of business.

We were founded in 2010, and we are a nonprofit that utilizes the skills and experiences of military veterans with first responders to rapidly deploy emergency response teams. We provide immediate relief to those impacted by disasters and humanitarian crises, whether domestic or international.

Leaders use Invisible’s tech-enabled, next-gen outsourcing service to scale operations, cut costs, and support their teams. We’re business process & technology experts. Clients work with us to solve complex scale challenges, to optimize mind-numbing workflows, and everything in between.

Abridge was founded in 2018 with the mission of powering deeper understanding in healthcare. Our AI-powered platform was purpose-built for medical conversations, improving clinical documentation efficiencies while enabling clinicians to focus on what matters most—their patients. Our enterprise-grade technology transforms patient-clinician conversations into structured clinical notes in real-time, with deep EMR integrations. Powered by Linked Evidence and our purpose-built, auditable AI, we are the only company that maps AI-generated summaries to ground truth, helping providers quickly trust and verify the output. As pioneers in generative AI for healthcare, we are setting the industry standards for the responsible deployment of AI across health systems. We are a growing team of practicing MDs, AI scientists, PhDs, creatives, technologists, and engineers working together to empower people and make care make more sense.

Wealthfront is a nextgen banking service. We help you manage your money for both your short-term and long-term goals by providing a cash account with a top-of-market APY, best-in-class automated investment management, and free financial advice, anytime you want it. We entered into the banking space in a big way this year with the launch of our cash account that offers an interest rate 23x greater than the national average. We’ve been overwhelmed by the response and have grown nearly 100% this year already to manage nearly $20 billion in total client assets. Our ultimate vision is to optimize and automate all of our clients’ finances and build what we call Self-Driving Money™️. We want clients to be able to automatically deposit their paycheck into their Wealthfront account, and let us take care of the rest — paying their bills, topping off their emergency fund or 401(k), and investing the rest based on their specific goals and lifestyle.