Top California App Development Startups (64)

As the trusted choice for digital agencies, SaaS platforms, and web professionals, Duda powers over 1 million websites worldwide. Our platform offers a comprehensive suite of tools that enable users to efficiently create pixel-perfect, feature-rich websites at scale.

WorkWhile is an AI-powered next generation labor platform that helps businesses in light industrial, hospitality, and events achieve over 90% fill rates and reduce no-shows through AI and predictive machine learning. We ensure seamless shift execution with trained, on-demand workers supported by on-site leads, real-time performance monitoring, and a robust accountability system. Our worker-first model boosts retention through benefits like...

Sortly is the simplest inventory platform for business and teams to stay on top of their stuff. Our visual system enables business to easily track what they have, where it is, and who has it. Anytime, anywhere, on any desktop, tablet or mobile device. Sortly is trusted by tens of 1000’s of small businesses and teams at large enterprises including HP, Honeywell,...

Doodle Labs designs and produces industrial-grade wireless networking solutions. The company focuses on mesh networking for robotic systems, providing high throughput, long-range Mesh Rider solutions for UAVs, UGVs, AMRs and other robotic applications. The company’s Helix Mesh Rider Radio was developed with sponsorship from DIU and is the Blue UAS program’s datalink of choice. Doodle Labs was named one of Fast...

FAR.AI is a technical AI research and education non-profit, dedicated to ensuring the safe development and deployment of frontier AI systems. FAR.Research: Explores a portfolio of promising technical AI safety research directions. FAR.Labs: Supports the San Francisco Bay Area AI safety research community through a coworking space, events and programs. FAR.Futures: Delivers events and initiatives bringing together global leaders in AI academia, industry...

MojoTech is a 100% US-based software development company that integrates strategy, engineering, and design to create results-driven digital products and experiences. We've written the playbook for how to discover, define, design, and build tomorrow's innovations, empowering companies to unlock future market potential, maximize returns on innovation, and drive transformational change.

Plots is getting Gen Z off their phones and into real life. We're the event discovery platform that turns digital connections into actual friendships, helping our generation find and meet people at high-quality local events they'll love. We're backed by A16Z SPEEDRUN, co-founded by two Gen Z builders and Tinder's founding CTO, and we've already helped event hosts make $3M+ in...

Web Design Avenue provides top-notch custom development services such as eCommerce development, website development, and brand development. We also offer app design, animation services, and digital marketing. Businesses across the USA rely on Web Design Avenue for quality digital services.

Xano is the leading backend infrastructure platform for building APIs, logic, and workflows that power modern apps, services, and AI agents—visually and without code. Built for the agentic era, Xano provides everything you need to launch and scale AI-driven systems: dynamic APIs, contextual business logic, scalable storage, and secure, production-grade deployment—without DevOps overhead or stitching together fragmented tools. Trusted by...

Artic is passionate about people and impact, delivering global consulting services that provide solutions by understanding the business need, pulling an incredible team together, then executing and delivering amazing results. Currently, Artic specializes in Business Management Services, Custom Application and Systems Engineering, and Data and Business Insights.

Warp began with the vision of reimagining one of the fundamental dev tools—the terminal—to make it more usable and powerful for all developers. As AI has advanced, Warp has evolved beyond its terminal roots into the platform for Agentic Development: a workbench for dispatching agents to code, deploy, and debug production software. With over half a million active developers and revenue...

Divinate Technologies is a modern digital services agency. We aim to build tools which support small businesses, while also paving the way for AI in the workforc Headquartered in Bakersfield, CA, we specialize in web design, where we craft bespoke websites with a keen focus on responsive design, ensuring optimal user experience (UX) and a polished user interface (UI). We leverage...

TechGropse is the world’s leading digital solution provider, with its headquarters in Atlanta, we also have branches in Chicago, Houston, Dallas, Los Angeles, San Francisco, New York City. Our dream is to provide all the possible and latest solutions to small businesses and enterprises. As a leading leader in the field, we have redefined digital possibilities for nearly a decade...

Our live receptionist services have powered thousands of client interactions every day for over a decade, and we’re now expanding our technology portfolio with AI-driven products that combine human empathy with intelligent automation. The AI Receptionist Platform is Abby Connect’s latest innovation — an intelligent voice system that manages scheduling, intake, and communication in natural conversation. It’s a critical part of...

FlutterFlow is a leading visual development platform that revolutionizes the way teams create, design, and deploy applications. With over 2M users across 200+ countries, FlutterFlow enables teams to build apps without extensive coding knowledge. With an intuitive visual interface, granular control over app experience and cross-platform deployment capabilities, FlutterFlow is trusted by startups and Fortune 500 companies alike to accelerate...

We provide end to end customized solutions for web and mobile app development to clients around the globe. We support our clients with tools and techniques and innovative approaches to solving mission-critical business problems. Our mission is to revolutionise the process involved in solving the strategic or routine IT problems that affect the business growth. Our process is streamlined towards...

LCPtracker, Inc. is the leading solution for certified payroll reporting software, construction site compliance management, and workforce reporting. It all started in 2001, when LCPtracker CEO Mark Douglas envisioned a Software-as-a-Service (SaaS) solution geared towards prevailing wage compliance for K-12 school construction. After two years of development with just a three-person team, LCPtracker Professional was officially launched. By 2006, our...

Ayatas Technologies is a full-service web, eCommerce, and mobile app development company delivering custom digital solutions for businesses of all sizes. From responsive websites to advanced Shopify and Magento stores, Ayatas empowers brands with innovative technology and results-driven strategies.

Create compliant healthcare apps quickly Medplum is a powerful, open source healthcare data platform built by industry veterans.

Orangesoft is a full-cycle software development company that delivers custom digital products for startups in the healthcare industry. What sets us apart is our can-do attitude about every project we take up. We are a bright team of 100+ engineers, designers, and analysts who don’t just build software but also innovate the way business people think. Key Orangesoft's numbers: • 13 years on...