Top California App Development Companies (107)

Atlassian creates teamwork solutions for high-performing teams. Our portfolio of collaboration and work management software products includes Jira, Confluence, Trello, Loom and Rovo. More than 300,000 businesses worldwide rely on Atlassian’s technology, including 80 percent of Fortune 500 companies. Our solutions support various business teams and they help organizations plan, track, and deliver their biggest ideas together.

BlackLine gives you the innovation of AI-powered software solutions you need to optimize workflows, reduce risk, and prepare for tomorrow’s strategic F&A challenges. BlackLine is the leader in the cloud financial close market and the first and only holistic solution to address intercompany operations. Companies can execute and manage financial close, intercompany, and invoice-to-cash processes with end-to-end transparency and intelligent...

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.

From film, television, news, theme parks, interactive media, and streaming, our people are at the center of it all. ​Here, we solve complex and business-critical problems. That’s why we’re looking for people to help us continue our evolution, imagining and delivering the most innovative and disruptive products and services through the latest tech advancements in the industry. ​ Here you...

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...

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,...

Snap Inc. is a technology company. We believe the camera presents the greatest opportunity to improve the way people live and communicate. We contribute to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together.

We're a global community of bold visionaries and resourceful doers who are shaping the future of Dropbox—and with it the future of work. Our Virtual First model combines the flexibility of a distributed workplace with the power of human connection, making space for both meaningful work and meaningful relationships. With our start-up mindset and enterprise-level opportunities, you can be who...

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...

The AI-native developer intelligence platform that connects the dots between your data and the context you need to drive more impact.

Xano is the fastest way to create a scalable backend for any app or agent, from mission-critical software to your latest vibe-coded project. As a unified platform, Xano gives you everything you need to build and deploy production-grade software — visually, with code, or through AI — and launch in minutes. Connect to any frontend, deploy with one click, and...

Bee Techy is a top-tier, remote-first software development agency that builds high-quality digital products with precision, speed, and reliability. We specialize in web and mobile development, AI-driven solutions, and end-to-end engineering support for startups and fast-growing companies. Our team delivers clean, scalable, and production-ready systems that help businesses move faster and innovate confidently. As a growing engineering team, we’re actively hiring...

At SmartCookie.App, our mission is simple: to keep kids engaged in learning and self-motivated to pursue ongoing education. We accomplish this through an innovative approach to parental controls that uses kids’ desire to access online entertainment to drive their learning.

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...

Social Discovery Group (SDG) is one of the world's largest groups of social discovery companies, uniting millions of users on dozens of products. SDG solves the problem of loneliness, isolation, and disconnection - transforming virtual intimacy into the new normal. SDG products redefine the way people interact and connect with each other. Our portfolio includes social entertainment platforms designed to...

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.

Virtualitics, the Mission AI Company, is a leader in delivering AI readiness applications for commercial and government organizations. We are a fast growing AI company built on a decade of Caltech research in partnership with NASA/JPL, giving us a unique heritage in mission-critical innovation. We transform mission readiness and operational efficiencies at speed and scale by providing and predicting key...

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...

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide and over 500,000 business users, Replit is democratizing software development by removing traditional barriers to application creation.

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...