Efelle Creative: They are known for providing custom website design, development, and online marketing services for businesses. They have a strong reputation for creating visually appealing and functional websites.

Fingerprint Marketing: Fingerprint Marketing is a full-service web design and digital marketing agency that has a strong focus on creating websites that reflect the unique brand identity of their clients.

Sayenko Design: Sayenko Design is recognized for its creative and user-focused web designs. They specialize in creating websites that are not only visually appealing but also optimized for a seamless user experience.

Urban Influence: Urban Influence is a design and branding agency that provides services ranging from web design to digital marketing. They have a reputation for creating visually stunning and highly functional websites.

These companies have established themselves as leaders in the Seattle web design industry. However, I recommend checking their most recent work, reviews, and client testimonials to ensure they meet your specific requirements before making a decision. Additionally, as my information is based on data up until 2021, I suggest conducting a new search to find the most recent information on the best web design companies in Seattle.