Top Magento ecommerce agencies to consider.

A Magento ecommerce agency carries pattern-matched expertise across the Magento 2 codebase, indexer architecture, multi-store organization, B2B module configuration, payment-gateway integration, and the Hyva or PWA Studio frontend layer that a single in-house developer rarely accumulates. The work spans Magento 2 module development, custom catalog attributes, multi-warehouse inventory routing, Adobe Commerce ERP integration via Boomi, MuleSoft, or Celigo, GraphQL Storefront API for headless deployments, performance tuning under heavy catalog load (10K+ SKUs with attribute sets), and the QSA-supporting checkout configuration for PCI compliance. A Magento agency also brings cross-discipline coverage - senior PHP engineers, frontend specialists in Hyva or React PWA Studio, B2B catalog architects, and DevOps engineers running AWS or MageMojo hosting. An in-house developer can ship excellent work on one or two of those layers; an agency ships across all of them on a 14-to-24-week build cadence with named delivery leads.

Magento Open Source is the free, community-supported version of the Magento 2 platform - you self-host (AWS, MageMojo, Nexcess, or your own infrastructure), pay no license fees, and access the full open-source codebase. It carries the core catalog, checkout, B2B basics, and multi-store features but does not include enterprise-grade content staging, Page Builder advanced features, customer segments with targeted rules, or Adobe Sensei AI-driven product recommendations. Adobe Commerce (formerly Magento Commerce, then Magento Enterprise) is the paid Adobe-licensed version - annual license fees start around $22,000 for entry-level brands and scale to $125,000+ based on GMV tier. The license includes Adobe-managed cloud hosting (Adobe Commerce Cloud), the enterprise feature set (B2B advanced, content staging, targeted rules, Page Builder advanced, AI recommendations), and Adobe support SLAs. The honest reframe: Open Source is the right choice for $1M-$10M brands with strong in-house engineering; Adobe Commerce is the right choice for $10M+ brands needing the enterprise feature set and willing to pay the license premium.

Honest 2026 mid-points across the five archetypes: a Hyva or PWA Studio frontend rebuild on existing Magento runs $35,000 to $90,000 over 10-16 weeks. A custom Magento 2 build with B2B catalog rules, multi-store, and tax integration runs $80,000 to $250,000 over 14-24 weeks. An Adobe Commerce enterprise engagement with ERP integration via Boomi or MuleSoft runs $200,000 to $750,000 over 20-40 weeks. A Magento readiness audit (3 weeks, refundable against any subsequent engagement) is $8,000-$15,000. Retainer engineering for ongoing Magento work runs $8,000-$25,000 per month depending on the engineering bench. US and UK senior Magento engineers are $140-$200 per hour at boutique agencies; Indian senior engineers are $90-$140 per hour. The 40-60 percent cost premium of Magento agency work over equivalent Shopify Plus work is real and explained by platform complexity, slower iteration speed, and the smaller pool of specialized Magento engineers.

Stay on Magento when: catalog complexity exceeds 10,000 SKUs with deep attribute sets and tiered pricing, B2B requirements include company accounts with internal approval workflows, NET-30 payment terms with credit limits, and per-customer-group catalog visibility, multi-store architecture genuinely requires shared SKUs across regional storefronts with isolated catalog rules, ERP integration via Boomi or MuleSoft is already wired to NetSuite or SAP, or the brand is past $50M GMV with internal Magento engineering retained. Migrate to Shopify Plus when: Adobe Commerce license has increased 40-60 percent since 2022 and the math no longer works against Shopify Plus's flat $2,500/month, your B2B needs fit Shopify's B2B module (which has caught up significantly in 2024-2026), hosting and developer retainers exceed $50,000 per year combined, the catalog is under 5,000 SKUs without exotic attribute requirements, or the brand wants faster iteration speed and a larger app ecosystem. The migration cost is $50,000-$300,000 and runs 12-26 weeks. We run a 3-week readiness audit to answer the stay-or-migrate question with numbers, not preferences.

Three certification tiers matter in 2026. Adobe Solution Partner status is the top tier - Bronze, Silver, Gold, and Platinum levels track named-engineer Adobe certifications, completed Adobe Commerce projects, and verified customer satisfaction. Verify the agency directly on the Adobe Solution Partner directory rather than the agency's own homepage. Adobe Certified Expert (ACE) credentials track individual engineer certifications across Magento 2 Frontend Developer, Magento 2 Backend Developer, Magento 2 Solution Specialist, and Magento 2 JavaScript Developer paths. Ask any Magento agency for a count of named engineers holding ACE credentials at each level. Magento Master status is the rarest tier - typically 5-15 individuals globally per year, awarded for exceptional contribution to the Magento community (open-source modules, conference talks, technical blog publishing). The presence of even one Magento Master on an agency's bench is a strong signal of technical depth. Beyond Adobe certifications, look for Hyva Themes partner status (the Hyva Themes ecosystem now has its own partner directory), AWS or Adobe Commerce Cloud hosting certifications, and the agency's open-source contribution history on GitHub.

The credible Magento agencies in 2026 fall into two camps - pure Magento specialists who do not handle Shopify, and hybrid agencies that handle Magento AND Shopify Plus and route the buyer to whichever platform fits the math. The hybrid camp is small (we sit in it; so do a handful of others) but it produces the most honest discovery conversation - because the agency does not need to recommend Magento to keep the engagement. A Magento-to-Shopify-Plus migration requires data migration (products, customers, orders, B2B catalogs, metafields), URL redirect mapping for SEO preservation (typical Magento sites have 5,000-50,000 URLs requiring 301s), third-party integration rewiring (ERP, email, reviews, search, analytics, 3PL), B2B portal recreation in Shopify B2B if the source had B2B catalogs, and payment-gateway and tax setup on the Shopify side. Migration cost is $50,000-$300,000 over 12-26 weeks depending on catalog size, B2B complexity, and the cleanliness of the Magento source data. Ask any candidate agency for a count of named, verifiable Magento-to-Shopify-Plus migrations they shipped in the last 18 months.