Top Cross-Platform App Development Companies in California
4.6 avg. rating from 1,293 verified reviews Best Cross-Platform App Development Companies in California 5 Companies - Rankings updated: October 31, 2026
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
United States × California × Cross-Platform Mobile App Development × HR × Sort by: Top Rated × Clear Filters Rocketech is a software development company. We help founders and business teams decide what to build, build it, and keep it running after launch...
Top Services:
Mobile App Development Web Development Software Development Blockchain UI/UX Design Show more
Location San Francisco, California
Number of Employees 50 - 99
Average Hourly Rate $30/hr
Minimal Budget $1,000 - $10,000
Portfolios Count 14 Projects Listed ZAAG SYSTEMS delivers scalable web, mobile & AI solutions with sleek design, driving business growth for US startups...
Top Services:
eCommerce Development AI Development Web Development Software Development Web Design Show more
Location Santa Clara, California
Number of Employees 50 - 99
Average Hourly Rate $20/hr
Minimal Budget $10,000 - $25,000
Portfolios Count 17 Projects Listed Techcronus Business Solutions is a global provider of enterprise business solutions and modern-day technology services...
Top Services:
Mobile App Development Web Development PPC SEO UI/UX Design Show more
Location Los Angeles, California
Number of Employees 50 - 99
Average Hourly Rate $25/hr
Portfolios Count 14 Projects Listed End-to-end digital product design and engineering for enterprises and premium brands...
Top Services:
Branding Mobile App Development Software Development AI Development Design Services Show more
Location Los Angeles, California
Number of Employees Under 49
Minimal Budget $25,000 - $50,000
Portfolios Count 4 Projects Listed Azilen Technologies is a prominent enterprise AI development company that takes pride in delivering exceptional AI, Data, and HRTech solutions to organizations seeking digital transformation...
Top Services:
AI Development Software Development IT Services IoT Cloud Consulting Show more
Location San Francisco, California
Number of Employees 250 - 499
Average Hourly Rate $35/hr
Minimal Budget $10,000 - $25,000
Portfolios Count 16 Projects Listed Related Services in California Related Mobile App Development Specializations in California Popular Services Why companies trust DesignRush Every agency is independently vetted before it can be listed or ranked
1 Identity Check We verify businesses and reviewer LinkedIn profiles for integrity.
Agencies vetted 130,444+ 2 Portfolio Review We review agency work, case studies, and results to confirm skill.
Applicants rejected 47% 3 Ongoing Audit We monitor listings regularly; outdated agencies are removed.
Agencies verified 5
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