Top Travel App Development Firms in California

California is a global epicenter for travel technology and mobile innovation. Home to Silicon Valley and some of the world’s most influential technology firms, the state hosts major travel app developers that serve airlines, hotel brands, OTAs, corporate travel platforms, and global travel startups. Below is a curated list of only large, well-established travel app development companies in California.

Dev Technosys — San Francisco
Dev Technosys is one of the largest Travel software development firms serving enterprise and Fortune 500 clients. The company has extensive experience building scalable travel platforms, booking engines, and high-traffic mobile travel apps. With a workforce of over 1,000 engineers, Dev Technosys is known for delivering premium digital products for global brands.
Navan (formerly TripActions) — Palo Alto
Navan is a major corporate travel and expense management platform, widely used by global enterprises. It provides integrated travel booking, itinerary management, and expense automation tools, serving thousands of companies worldwide. Headquartered in California, Navan is a recognized leader in business travel technology.
Mobile Roadie — Los Angeles / Palo Alto
Mobile Roadie is a large mobile app development platform known for building high-performance apps for entertainment, travel, tourism, and large consumer brands. It has powered apps for Taylor Swift, major sports teams, universities, and global entertainment companies, and supports millions of users worldwide.
RedAwning — Petaluma, California
RedAwning is a global travel accommodation and vacation rental booking platform, operating as a large online travel agency. The company builds travel booking technology that integrates with hotel brands, vacation rental marketplaces, and major OTA platforms, serving customers globally.
Gogobot (Trip.com U.S. Operations) — Palo Alto
Gogobot, now part of Trip.com Group, was a leading travel planning and recommendation platform based in California. The company developed AI-driven travel discovery tools, itinerary planners, and booking integrations and became one of the most visited travel platforms in the U.S.
Peek — San Francisco
Peek is a major travel experiences and activities booking platform, focused on tours, attractions, and local travel activities. It powers discovery and booking experiences for millions of travelers worldwide, partnering with tourism providers and destination businesses. Peek is recognized as a high-growth travel tech brand.
Nomad eSIM — Santa Clara, California
Nomad eSIM is a fast-growing travel connectivity platform providing mobile data solutions for international travelers. It builds mobile apps for travel data services across 200+ destinations, serving both consumers and enterprise travel clients.
Hotel Engine — California (Travel Tech Unicorn)
Hotel Engine is a billion-dollar travel technology company specializing in corporate hotel booking and travel management. The platform powers travel bookings for major enterprises such as PepsiCo, NBCUniversal, and Whole Foods, and supports millions of room nights annually.
CitrusBits — Los Angeles & San Francisco
CitrusBits is a well-recognized mobile product development firm that builds high-end travel, hospitality, and lifestyle apps. The company has worked with global brands such as Burger King and UCLA, focusing on UX-driven, visually rich mobile travel experiences.
Y Media Labs (YML) — Redwood City
YML is one of the most respected digital product studios in California, known for crafting large-scale mobile applications for Fortune 500 brands. They build premium travel, hospitality, booking, and consumer experience apps with advanced design and engineering standards.