Enterprise App Development in Seattle
Custom iOS, Android & cross-platform apps for Seattle, WA startups and enterprises — built by a NYC-based team trusted by 500+ businesses nationwide.
App Development built for Seattle's economy
Seattle is the cloud-computing capital of the world — home to Amazon (AWS) and Microsoft (Azure) — so the local talent pool and client expectations revolve around large-scale distributed systems and rigorous engineering. Logistics, aerospace, and B2B SaaS round out the economy. Our work spans South Lake Union, the downtown core, and the Eastside tech belt around Bellevue and Redmond. For Seattle organizations building mobile apps, that local landscape shapes everything we do. Global IT SUPPORT LLC brings enterprise-grade app development to Seattle, WA — engineering products fit for Cloud Computing (AWS/Azure) and B2B SaaS leaders, from venture-backed startups around South Lake Union to established enterprises across the Pacific Northwest.
Industries we serve in Seattle
From South Lake Union, Bellevue, Redmond and beyond — we partner with teams across the Seattle metro.
Our app development capabilities
We build native and cross-platform mobile apps that users love and businesses rely on. From product strategy and UX through App Store launch and ongoing growth, we ship iOS and Android experiences that are fast, polished, and built on a backend ready for scale.
Native iOS & Android
High-performance Swift and Kotlin apps that take full advantage of each platform's capabilities and design language.
Cross-Platform (React Native / Flutter)
One codebase, both stores — cross-platform apps that cut cost and time-to-market without sacrificing quality.
Backend & API Engineering
Scalable, secure backends and APIs powering authentication, real-time data, payments, and push notifications.
UX/UI Product Design
Research-driven, conversion-focused mobile design and prototyping that turns ideas into intuitive products.
App Store Launch & Growth
App Store and Google Play submission, ASO, analytics, and iteration to grow installs and retention post-launch.
Maintenance & Support
OS-update readiness, monitoring, and ongoing feature development to keep your app healthy long after launch.
Why Seattle companies choose Global IT SUPPORT
We're a New York–based software company serving clients across the United States and worldwide. Seattle teams get a senior, enterprise-grade partner without the bloated agency overhead.
Enterprise-grade engineering
Fortune-500-caliber architecture, security, and code quality — applied to startups and enterprises alike.
Startup speed, senior team
Senior engineers and designers who ship fast without cutting the corners that cost you later.
Secure & compliant
Security, accessibility, and data protection built in from day one — not bolted on at the end.
Ready to build in Seattle?
Tell us about your project and get a free consultation with our senior team. No obligation — just clear, expert advice for your mobile initiative.