Web Development · Seattle, United States
Web Development Agency in Seattle.
Custom-built, performance-first websites and platforms engineered for speed, security and long-term scale. Seattle's tech and outdoor-lifestyle brands demand engineering-grade digital execution.
What we do
A web development agency in Seattle built for ambitious brands.
SDM is an independent digital agency working with clients across Seattle and United States. We combine strategy, design, engineering and performance in one team, so web development decisions ladder up to real commercial outcomes.
- Headless CMS builds01
- Next.js, TanStack Start, WordPress02
- API and integrations03
- Ecommerce04
- Hosting and support05
- Core Web Vitals06
Why brands in Seattle choose SDM
Award-winning craft
Recognised by Awwwards, Prestige Awards and the British Business Awards for web development work.
Commercially focused
We measure web development success in pipeline, revenue and share of voice, not vanity metrics.
Local and global
Studios in London and New York, delivering web development for brands in Seattle and beyond.
Recognition
Recognised for the work. Trusted for the results.
- 2025
British Business Awards
Fastest Growing Marketing Agency
- 2025-2026
Prestige Awards
Marketing Agency Of The Year
- 2022-2026
Awwwards
Site Of The Day (x4)
- 2024-2025
Prestige Awards
Marketing Agency Of The Year
- 2024-2025
CSSWINNER
Site Of The Day (x2)
Other web development locations
Other services in Seattle