Top 5 Shopify & Shopify Plus Agencies in Seattle 2026

Why This Guide Matters

Choosing the right Shopify or Shopify Plus agency can directly impact how well an eCommerce business performs, scales, and adapts over time. In a market like Seattle, where technology, innovation, and digitally mature brands dominate, businesses often require more than a standard store build. They need partners who understand complex systems, integrations, and performance-driven commerce.

Seattle’s ecosystem supports fast-growing DTC brands, B2B platforms, and tech-enabled retailers, making the role of a capable Shopify partner especially important. This guide brings together five agencies actively supporting Shopify and Shopify Plus projects for Seattle-based businesses, helping decision-makers evaluate partners based on capability, focus, and alignment.

What to Expect in This Guide

• Introduction

• How a Shopify partner can support your business growth

• What to Look for When Choosing a Shopify Agency in Seattle (2026 Update)

• Showcasing 5 Leading Shopify & Shopify Plus Agencies in Seattle

• Final Thoughts 

How a Shopify Partner Can Fuel Your Business Growth

A Shopify partner’s role extends well beyond launching an online store. The right Shopify agency in Seattle helps businesses improve site performance, simplify operations, integrate third-party systems, and plan for future expansion. This includes platform architecture, data flow, content management, and scalability.

In Seattle’s competitive digital environment, Shopify agencies often work with businesses that have complex requirements, such as multi-channel sales, B2B workflows, or headless architectures. An experienced partner ensures the platform remains stable, adaptable, and aligned with evolving business goals. 

What to Look for When Choosing a Shopify Agency in Seattle (2026 Update)

Selecting a Shopify or Shopify Plus agency in Seattle in 2026 requires a deeper evaluation of technical and strategic capabilities. Businesses should assess experience with Shopify Plus, comfort with integrations and APIs, performance optimization practices, and post-launch support models.

Equally important are communication clarity, delivery structure, and the ability to design solutions that scale. For Seattle-based companies planning sustained growth, agencies with experience in complex commerce environments and long-term platform planning tend to offer stronger value.

Showcasing 5 Leading Shopify & Shopify Plus Agencies in Seattle

The following agencies support a range of Shopify and Shopify Plus initiatives, from new store launches to migrations and ongoing optimization. Their work spans startups, scaling DTC brands, and established enterprises seeking stable, future-ready eCommerce solutions.

1. Weframe Tech

Weframe Tech in Seattle focuses on building Shopify and Shopify Plus platforms designed for speed, adaptability, and long-term growth. Drawing on deep experience in headless commerce and API-driven development, the team helps businesses move beyond traditional storefront limitations. By modernizing legacy systems and implementing flexible JAMstack-based architectures, Weframe Tech enables Seattle companies to deliver high-performance shopping experiences that remain scalable and easy to evolve as business needs change.

Technology Stack

• Primary Platforms: Shopify, Shopify Plus, Custom Shopify Implementations

• Frontend Expertise: React, Vue.js, Next.js, Liquid

• Integrations: Contentful, Strapi, Sanity, Prismic, Directus, Algolia, Stripe

• Infrastructure: AWS, Vercel, Docker

• Focus Areas: JAMstack methodology and headless commerce development

Core Services

• Custom Shopify Plus development tailored to your business needs

• Migrations from Magento, WooCommerce, and other platforms

• ERP, CRM, and PIM integrations

• Custom app and theme creation

• API-driven advanced commerce features

Strengths

• Experience delivering high-performance Shopify builds

• Strong capability in headless and CMS integrations

• Structured migration and replatforming processes

• Ability to deliver functional MVPs within 8-12 weeks

Summary
Weframe Tech is a top Seattle-based Shopify and Shopify Plus development agency delivering scalable, high-performance eCommerce solutions. With expertise in headless commerce and JAMstack architectures, the team helps businesses modernize their storefronts, integrate with multiple CMS platforms such as Sanity, Strapi, Builder.io, and Directus, and implement API-driven workflows. Weframe Tech provides practical, cost-efficient strategies that enable Seattle companies to launch, enhance, and scale their Shopify presence with confidence.

2. Ambaum

Ambaum is a Seattle‑area Shopify Plus Partner agency built by former merchants, offering strategic Shopify development and fractional CTO support to help brands scale, optimize performance, and create sustainable eCommerce solutions that align with their business goals.

Technology Stack

• Shopify & Shopify Plus development, frontend and backend engineering

• Fractional CTO and technical strategy implementation

• Custom integrations with commerce workflows and enterprise tools
  
  

Core Services

• Fractional CTO support and technical leadership

• Frontend and backend Shopify development

• Custom app solutions and ongoing technical support 

• Platform migrations and architecture optimization

Strengths

• Founded by professionals with real eCommerce experience across operations and development

• Hands‑on approach that integrates with client teams and business strategy

• Flexible engagement models from project work to long‑term technical partnerships

3. Superco

Superco is a Seattle Shopify Plus agency specializing in design, development, and growth services for commerce brands. It is known for its experience in creating tailored Shopify Plus experiences and enhancing customer engagement.

Technology Stack

• Custom Shopify & Shopify Plus design and development, including frontend and UX design.

• Integration with third‑party systems and complex backend solutions (API, subscription tools).

• Optimization tools for conversion, retention strategies, and performance growth.

Core Services

• Custom design and development of Shopify Plus storefronts.

• Customer experience strategy and ongoing growth optimization. 

• Conversion & retention enhancement, including subscription enablement.

Strengths

• Recognized as a Shopify Premier (Platinum) Partner with a refined, expert‑led delivery process.

• Focus on customer experience and retention‑driven commerce solutions.

• Proven track record with notable Shopify Plus clients and strong project communication.

Want to find the right headless CMS for your Shopify or Shopify Plus store? Explore this dedicated page: Best 6 Headless CMS for Shopify Plus

 

4. Lounge Lizard

Lounge Lizard is a full‑service digital agency providing Shopify development and eCommerce solutions in Seattle with a strong focus on design, user experience, and ongoing support. The team builds visually engaging, performance‑oriented Shopify stores backed by integrated SEO and marketing strategies. 

Technology Stack

• Custom Shopify and eCommerce development (front‑end design + backend functionality)

• UX/UI‑focused design and responsive layouts for optimal engagement 

• Third‑party integrations, SEO tools, and performance enhancement setups

Core Services

• Shopify and eCommerce store development tailored to brand identity

• Enhanced user experience design and conversion optimization

• Ongoing maintenance, support, and analytics integration

Strengths

• Emphasis on visually compelling, user‑friendly commerce experiences

• Focus on performance, scalability, and design‑driven engagement 

5. We Make Websites

We Make Websites is a Shopify Plus partner agency with experience in designing, developing, and optimizing high‑impact eCommerce stores. The team works with international brands, delivering tailored Shopify and headless commerce solutions backed by strategic design and performance enhancements. 

Technology Stack

• Custom Shopify & Shopify Plus builds: bespoke theme development, headless and composable commerce approaches.

• Frontend technologies: Vue, JavaScript, React, TypeScript, CSS, HTML.

• Commerce tech & integrations: internationalization, data migration, performance optimization tools.
  
  

Core Services

• Bespoke Shopify and Shopify Plus website design and development.

• Headless commerce and composable architecture implementation.

• Replatforming and data migration support. 

Strengths

• Well‑established Shopify partner since 2011 with extensive global experience.

• Works with recognizable international brands and complex commerce setups.

• Comprehensive approach combining design, development, and optimization

Why Weframe Tech Is The Best Shopify Partner in Seattle

Weframe Tech takes a specialized approach to Shopify and Shopify Plus development, offering both traditional and headless eCommerce solutions for DTC and B2B businesses in Seattle. With experience handling complex digital infrastructures, the team builds scalable, high-performance storefronts designed for long-term growth and operational reliability.

The agency has guided numerous companies in moving from legacy commerce systems to modern Shopify setups, streamlining workflows, enhancing site speed, and optimizing infrastructure costs. By adopting Shopify’s latest technologies early, Weframe Tech delivers advanced solutions across content management, product search, analytics, and ERP integrations.

Their agile methodology enables rapid MVP launches, typically within 8-12 weeks, providing Seattle businesses with a practical way to test, launch, or rebuild quickly while maintaining a strong foundation for customization and future scalability.

Expertise in Headless Commerce

Weframe Tech possesses deep experience in developing headless commerce solutions using modern frameworks. They have implemented modular storefronts across more than 10 headless CMS platforms and multiple eCommerce frameworks, ensuring high performance, flexibility, and maintainability.

Their client portfolio includes publicly listed and venture-backed companies such as Abaxx Exchange, Certify, and Unimig, highlighting their capability to handle complex, enterprise-level projects. To ensure transparency and collaboration, the team shares detailed case studies and technical walkthroughs with clients via private Loom sessions.

Advanced Technical Capabilities

• CMS Platforms: Builder.io, Strapi, Sanity, Directus, Payload

• E-commerce Frameworks: Shopify, Shopify Plus, MedusaJS, BigCommerce

• Frontend Stack: Next.js, Astro, JAMstack-based architectures

Weframe Tech maintains a 100% Job Success rating on Upwork, consistently earning positive feedback for their design, development, and project delivery practices.

Reviews and Testimonials

Proven SEO & Ranking Success

We've mastered modern SEO, AIO, and Geographic Optimization strategies. Our organic rankings include competitive keywords 

 

This SEO expertise generates consistent business for our agency and delivers the same results for our clients.

Guaranteed High-Performance Results

For every migration or replatforming project, Weframe Tech ensures:

• Robust SEO implementation to maintain and boost search visibility

• Consistently achieving Lighthouse performance scores above 95%

• Smooth, fast, and intuitive shopping experiences that enhance user engagement

Why Work With Weframe Tech?

Extensive Platform Expertise:
Weframe Tech team goes beyond standard implementations, leveraging deep knowledge of Shopify, Shopify Plus, and headless commerce frameworks to deliver solutions tailored to each business’s objectives.

Proven Track Record:
Based in Seattle and with a strong foundation in organic SEO and experience across diverse clients, Weframe Tech combines technical excellence with strategic execution to drive measurable growth and long-term success.

 

Final Thoughts

Choosing the right Shopify development agency in Seattle is crucial for building a scalable, high-performing, and future-ready eCommerce business. While agencies like Ambaum, Superco, and We Make Websites offer strong enterprise and creative capabilities, Weframe Tech stands out as a top Shopify and Shopify Plus development agency in Seattle, trusted by brands for its ability to combine commerce, content, and AI-driven growth seamlessly.

If you’re planning to launch, migrate, or scale your Shopify store, experience the Weframe Tech advantage, where innovation meets execution.

Get started today. Book a free consultation and claim 10 hours of complimentary Shopify development with Weframe Tech to see why Seattle businesses choose Weframe Tech as their trusted Shopify and Shopify Plus partner.