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Top Performance Optimization Companies in 2026

Compare e-commerce companies offering Performance Optimization. Review platform expertise, industries served, team size, pricing signals, case studies and approved client feedback before selecting a provider for your project.

227 matching companies Structured company data Approved reviews only How Ecostaff evaluates directory data
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EbizON is a global ecommerce and digital activation agency headquartered in Noida, India. The company delivers ecommerce consulting, design, development, migration, integration and growth services across Shopify, Shopify Plus, Magento, Adobe Commerce, WooCommerce and BigCommerce, with additional capabilities in headless...

Services
API DevelopmentCustom Ecommerce DevelopmentData MigrationEcommerce Consulting and Strategy
Platforms
Adobe CommerceBigCommerceMagento
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
201-500 employees
Headquarters
Noida, Uttar Pradesh, India
No reviews yet

Polcode is a Warsaw-headquartered software and ecommerce development company founded in 2006. The firm builds, modernizes and supports digital products and online stores, with longstanding Magento experience and additional WooCommerce capability. Its ecommerce work includes platform modernization, performance, security, integrations,...

Services
Analytics and TrackingAPI DevelopmentCustom Ecommerce DevelopmentEcommerce Consulting and Strategy
Platforms
Adobe CommerceMagentoWooCommerce
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
101-250 employees
Headquarters
Warsaw, Masovian Voivodeship, Poland
No reviews yet

Growcode is an ecommerce optimization and Magento agency focused on conversion, UX and revenue growth. Its provider-published case material documents experimentation programs for large retail brands alongside Magento development and support.

Services
Analytics and TrackingB2B Ecommerce DevelopmentCode AuditConversion Rate Optimization
Platforms
Adobe CommerceMagento
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
Warsaw, Masovian, Poland
No reviews yet

illuminise is a UK ecommerce strategic and development partner based in Cambridge. Its public positioning focuses on complex B2B and D2C Magento and Adobe Commerce for manufacturers, distributors and trade brands, including systems integration, performance and ongoing development.

Services
API DevelopmentB2B Ecommerce DevelopmentCustom Ecommerce DevelopmentD2C Ecommerce Development
Platforms
Adobe CommerceMagento
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
Cambridge, England, United Kingdom
No reviews yet

qoliber is a Magento-focused ecommerce engineering company delivering Magento Open Source, Adobe Commerce and Hyvä storefront work. Its portfolio includes migrations, custom storefront development, integrations, performance work and ongoing support for retail and B2B merchants.

Services
Cloud and DevOpsCode AuditCustom Ecommerce DevelopmentCustom Module and Extension Development
Platforms
Adobe CommerceMagento
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
Poznan, Greater Poland, Poland
No reviews yet

ADVOX Studio is a Poznań-based ecommerce software house operating since 2009. The company designs and develops B2B and B2C commerce systems with a strong focus on Magento 2, Shopify, Shopware, headless/PWA, UX/UI, PIM, API integrations, DevOps and ongoing SLA support....

Services
API DevelopmentB2B Ecommerce DevelopmentB2C Ecommerce DevelopmentCloud and DevOps
Platforms
Adobe CommerceMagentoShopify
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
51-200 employees
Headquarters
Poznań, Greater Poland, Poland
No reviews yet

Staylime is an ecommerce development company focused on Magento and Adobe Commerce design, development, migration, performance and ongoing support. Its work spans custom storefronts, integrations and optimization for retail brands, with a US office in Redwood City, California.

Services
API DevelopmentCustom Ecommerce DevelopmentCustom Module and Extension DevelopmentEcommerce Consulting and Strategy
Platforms
Adobe CommerceMagentoShopify
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
Redwood City, California, United States
No reviews yet

Net Solutions is a digital product and commerce engineering company founded in Chandigarh in 2000. It works with mid-market and enterprise organizations on ecommerce architecture, replatforming, product engineering, headless commerce, integrations and modernization, with current commerce experience across Adobe Commerce,...

Services
API DevelopmentB2B Ecommerce DevelopmentCustom Ecommerce DevelopmentData Migration
Platforms
Adobe CommerceBigCommerceMagento
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
501-1000 employees
Headquarters
Chandigarh, India
No reviews yet

IT Delight is an ecommerce development company founded in 2012 with teams across Europe and the United States. The agency works across Magento, Adobe Commerce, Shopware, Shopify and WordPress, delivering strategy, development, migrations, UX, audits, performance optimization, integrations and long-term...

Services
API DevelopmentB2B Ecommerce DevelopmentCustom Ecommerce DevelopmentCustom Module and Extension Development
Platforms
Adobe CommerceMagentoShopify
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
51-100 employees
Headquarters
Kyiv, Ukraine
No reviews yet

Vaimo is a Stockholm-headquartered digital commerce and experience agency founded in 2008. The company has grown to more than 650 team members across 15 markets and works with brands, manufacturers and retailers on commerce, content, data and customer experience. Its...

Services
API DevelopmentB2B Ecommerce DevelopmentB2C Ecommerce DevelopmentCloud and DevOps
Platforms
Adobe CommercecommercetoolsMagento
Minimum project
$100,000+
Hourly rate
$100-149/hr
Team size
501-1000 employees
Headquarters
Stockholm, Stockholm County, Sweden
No reviews yet

CoSpark is a US WooCommerce and WordPress development agency founded in 2009, with its West Coast office in Irvine, California and an East Coast office in Fredericksburg, Virginia. The company focuses on complex WooCommerce engineering, custom plugins, integrations, migrations, maintenance,...

Services
API DevelopmentCloud and DevOpsCore Web Vitals OptimizationCustom Ecommerce Development
Platforms
WooCommerce
Minimum project
$10,000+
Hourly rate
$150-199/hr
Team size
11-50 employees
Headquarters
Irvine, California, United States
No reviews yet

Quickfire Digital is a UK Shopify agency specializing in migration, CRO, development and growth for fast-moving brands. The company works with ecommerce brands that need brands that need Shopify Plus migration with SEO protection, internationalization and conversion improvement, with official...

Services
Conversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce Consulting and StrategyEcommerce SEO
Platforms
ShopifyShopify Plus
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
Norwich, England, United Kingdom
No reviews yet

Sleepless Media is a Santa Cruz-founded branding and ecommerce agency working with Shopify Plus merchants and growth-stage brands. It combines brand strategy, UI and UX design, custom development, conversion optimization and post-launch growth support, with a focus on consumer products,...

Services
Conversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce BrandingEcommerce UX/UI Design
Platforms
ShopifyShopify Plus
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
Santa Cruz, California, United States
No reviews yet

Kubix is a UK Shopify agency combining development, omnichannel retail, migration and growth marketing. The company works with ecommerce brands that need retailers that need Shopify to connect ecommerce, stores, fulfillment and retention, with official project material showing hands-on delivery...

Services
Analytics and TrackingConversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce Consulting and Strategy
Platforms
ShopifyShopify Plus
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
Birmingham, England, United Kingdom
No reviews yet

Whole Design Studios is an ecommerce agency or consultancy based in London, United Kingdom. It focuses on Shopify marketing, conversion optimization, email, paid social and growth support for fashion and luxury brands. Its active public website and service positioning were...

Services
Analytics and TrackingConversion Rate OptimizationEcommerce Consulting and StrategyEcommerce Marketing Strategy
Platforms
ShopifyShopify Plus
Minimum project
Not disclosed
Hourly rate
Not disclosed
Team size
11-50 employees
Headquarters
London, England, United Kingdom