Leading Agencies That Specialize in Shopify App Development (2026 Guide)
Shopify continues to dominate the e-commerce landscape, empowering brands of all sizes to build, scale, and optimise online stores. Whether you’re launching a new store, migrating platforms, or building custom Shopify apps, finding the right development partner can make or break your project.
- Mobikasa — Your Go‑To Shopify & Custom App Development Partner

When it comes to Shopify expertise, especially custom app development, Mobikasa is one of the most trusted and established partners in the ecosystem. With 14+ years of experience and a track record of delighting over 1,000 clients worldwide, Mobikasa doesn’t just build stores; they build growth engines.
Why Mobikasa Stands Out:
- Full‑Stack Shopify Services: From store setup and theme customization to custom Shopify apps and integrations, they handle it all.
- Shopify Plus & Marketplace Apps: Whether you’re on basic Shopify or enterprise‑level Shopify Plus, Mobikasa engineers solutions that scale with business goals — including advanced marketplace functionality and automation tools.
- Data‑Driven Strategy: Their approach blends design, development, CRO, SEO, analytics, and performance optimization to craft eCommerce experiences that convert.
- Proven Results & Recognition: Recognized among the top Shopify and Shopify Plus agencies, Mobikasa’s work spans diverse industries and complex project needs.
- Collaborative & Transparent Workflow: With client‑centric processes, they ensure every project stays on track, transparent, and aligned with business KPIs.
- New York-based, American Success: Based in New York, Mobikasa works with many American brands, achieving exceptional success and retention rates. This local focus ensures that they deeply understand the unique challenges and opportunities of the U.S. market.
In practical terms, Mobikasa’s work isn’t just about technology; it’s about commercial outcomes: higher sales, faster performance, and better user experiences.
Mobikasa’s strength is not only in making Shopify work but in making Shopify work strategically for your growth.
- Soda Web Media

Soda Web Media is a well‑regarded Shopify agency based in Atlanta known for delivering end‑to‑end eCommerce solutions.
What They Offer:
- Complete Shopify design and development
- Shopify migrations and audits
- Conversion optimization & SEO
- Shopify marketing and paid acquisition strategies
Soda Web Media takes a data‑backed approach to help stores not just launch but grow and perform. Their focus on UX, speed, and SEO makes them a reliable choice for merchants who want both technical expertise and strategic marketing support.
- The Social Shepherd

While not exclusively a Shopify app developer, The Social Shepherd shines in areas that complement Shopify growth: social strategy, paid media, and creative campaigns.
This agency is ideal for merchants who want to leverage social presence and performance marketing to expand brand visibility, drive traffic, and support Shopify conversions. Their creative focus makes them a strong partner for brand‑driven eCommerce experiences.
- Chicago Web Co.

Chicago Web Co. is a seasoned Shopify partner with over a decade of experience and a highly rated profile in the Shopify Partner Directory.
Key Strengths:
- Shopify store builds and redesigns
- Strategy, content, and conversion enhancements
- Branding and email marketing services
Their focus on building brand‑aligned, performance‑oriented stores makes them a strong choice for businesses that want steady growth combined with thoughtful design and functionality.
- Superco

Superco is a Shopify Platinum Partner based in London, known for working with high‑growth brands across sectors.
What Sets Superco Apart:
- Shopify Plus store creation and optimization
- Advanced analytics and tracking
- Conversion optimization and email marketing
Their collaborative focus aims to scale eCommerce operations through strategic design, technical excellence, and conversion‑centred development.
- Nine15

Based in the U.S., Nine15 crafts high‑performance Shopify Plus stores optimized for conversions and growth.
They blend design, development, SEO, CRO, and lifecycle marketing, offering a comprehensive services stack for brands at any stage from launch to expansion. Their holistic approach is ideal for businesses that want custom strategies backed by data and user experience insights.
- Realm Web Design

Realm Web Design has a strong reputation as a full‑service Shopify agency, offering everything from store builds to app development, migrations, SEO, and content strategy.
Why Choose Realm:
- Shopify store setup and custom themes
- App development and third‑party integrations
- SEO, marketing, and conversion optimization
Their focus on conversion‑driven design and end‑to‑end Shopify services makes them well‑suited for merchants who need both technical depth and strategic support.
Choosing the Right Shopify Agency
Selecting the right Shopify agency is a crucial decision that can significantly influence the success of your eCommerce project. By partnering with a top Shopify agency, you’ll have a team of experts working alongside you to design, develop, and optimise your online store. From engaging designs and smooth functionality to strategic marketing, these agencies bring the necessary skills and knowledge to elevate your e-commerce business.
It’s important to carefully assess different agencies based on their expertise, track record, and alignment with your business goals. Whether you’re looking for Shopify app development, Shopify Plus integration, or conversion optimization, the right agency can provide tailored solutions that drive growth. With the right Shopify agency by your side, you’ll be positioned to reach your full eCommerce potential and achieve lasting success.