For fast-growing ecommerce brands, moving to Shopify Plus is often only part of the challenge. The platform provides enterprise-level capabilities, but getting the most from it can require expertise in store design, custom development, migrations, integrations, conversion optimization, and B2B commerce.
That is where an experienced Shopify Plus service provider can help. The right partner can handle technical complexity while building a storefront that supports both current requirements and future growth. If you are comparing agencies in 2026, here are five Shopify Plus service providers worth knowing.
1. Avex
Avex is a Shopify Plus agency focused on ecommerce strategy, design, engineering, optimization, and retention. Its work is particularly relevant to established brands that want to modernize their ecommerce operations rather than simply launch a new storefront.
The agency provides services including Shopify migrations, systems integrations, technology strategy, UX optimization, conversion rate optimization, personalization, and retention marketing. Its portfolio includes projects for brands such as AriZona Beverages, KHAITE, quip, Equinox, FILA, and TYR. Avex may therefore appeal to larger businesses looking for a partner capable of addressing customer experience and technology as parts of the same ecommerce strategy.
2. Ecommerce Partners
Ecommerce Partners is a certified Shopify Plus development agency that works with mid-market and enterprise ecommerce businesses. Founded in 1998, the company brings more than 25 years of ecommerce experience across platforms including Shopify, BigCommerce, and Magento. Its Shopify Plus services cover custom development, migrations, checkout extensibility, ERP integrations, B2B and wholesale functionality, performance optimization, and technical SEO.
For companies looking for an Ecommerce Development Agency that can manage technically complex projects, Ecommerce Partners is particularly notable for its focus on platform migrations and integrations. The agency works with businesses migrating from platforms such as Magento, BigCommerce, WooCommerce, and Salesforce, while also supporting Shopify Plus B2B requirements such as company accounts, custom pricing, payment terms, and ERP-connected wholesale workflows. This combination can make it a strong option for brands with complex back-office systems or both B2B and direct-to-consumer operations.
3. Netalico
Netalico is a Shopify Plus Premier Partner offering design, development, migration, optimization, and ongoing support. The company positions its senior in-house team as an extension of a client’s ecommerce operation, which can be useful for brands that need expertise beyond the initial website launch.
Its services include Shopify Plus migrations, custom development, theme development, conversion optimization, app management, and technical support. Netalico also works on email and SMS marketing through Klaviyo. For growing DTC companies that want development and continuous optimization from the same partner, Netalico is worth considering.
4. Charle
Charle is a Shopify Plus agency offering ecommerce design, development, migration, support, CRO, SEO, and email marketing services. The company states that it has launched more than 150 Shopify sites and works with both global businesses and fast-growing brands.
Its approach extends beyond building a storefront. Charle provides ongoing optimization services designed to help merchants improve performance, conversion, and customer retention after launch. Brands seeking one partner for both creative storefront work and ongoing ecommerce growth support may find this combination attractive.
5. Ecommerce Pro
Ecommerce Pro specializes in Shopify Plus migrations, B2B ecommerce, website design and development, and ongoing support. The agency has worked with Shopify merchants since 2015 and focuses particularly on B2B businesses, specialty-product brands, and ecommerce operations with more complex requirements.
Its services include migrations to Shopify Plus, custom and premium theme development, B2B and wholesale implementations, redesigns, and support retainers. Ecommerce Pro may be a useful choice for businesses moving away from legacy platforms or companies that need wholesale functionality alongside their ecommerce storefront.
What to Look for in a Shopify Plus Service Provider in 2026
Choosing an agency should involve more than comparing portfolios. Start by looking at the provider’s experience with projects similar to yours. A visually impressive DTC portfolio does not automatically mean an agency is the right choice for a complicated B2B migration or ERP integration.
Consider capabilities in platform migration, integrations, performance, technical SEO, CRO, international commerce, and B2B functionality. You should also determine what happens after launch. Shopify Plus stores continuously evolve, so access to reliable development, troubleshooting, testing, and optimization can be just as important as the initial build.
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