On April 20, 2026, Commerce (Nasdaq: CMRC), the parent company of BigCommerce, announced a significant development in the world of ecommerce with the launch of a new composable ecommerce store for Mountain Warehouse. This strategic collaboration highlights the growing importance of agile digital solutions in a competitive retail landscape.

1. Transitioning to a Composable Ecommerce Store

Mountain Warehouse, a leading global retailer in outdoor clothing and equipment, has taken a bold step forward by replacing its decade-old custom-built ecommerce system with a new, innovative platform powered by BigCommerce. This transition aims to enhance scalability, reduce operational complexity, and accelerate innovation across its global operations.

Founded in 1997, Mountain Warehouse operates over 400 stores worldwide and caters to more than 5 million customers across various markets, including the UK, U.S., Canada, Europe, Australia, and New Zealand. The company prides itself on designing and producing most of its products in-house, offering affordable outdoor apparel and equipment for families.

Simon Neale, Chief Technology Officer at Mountain Warehouse, emphasized the critical nature of this transition, stating, “Moving away from our legacy platform was critical to unlocking the next phase of Mountain Warehouse’s growth. With BigCommerce, we now have the flexibility to innovate faster, integrate best-of-breed technologies, and focus our engineering efforts on delivering better customer experiences rather than maintaining core infrastructure.”

2. Overcoming Legacy Platform Limitations

The previous ecommerce platform's age posed several challenges for Mountain Warehouse, including a heavy reliance on development resources, speed-to-market limitations, security concerns, and difficulty in implementing modern technologies. The adoption of a composable, headless architecture through BigCommerce aims to address these issues effectively.

Key Benefits of the New Platform

By implementing this new system, Mountain Warehouse can achieve several key objectives:

Accelerated time-to-market for new features and initiatives

Reduced reliance on maintaining outdated core systems

Enhanced security, reliability, and compliance of the platform

Flexible integration capabilities with third-party and in-house solutions

3. A Best-of-Breed Technology Stack

Mountain Warehouse's new ecommerce experience is built on a modern technology stack, which includes:

BigCommerce's Catalyst frontend, deployed on Vercel

Contentful for content management

Algolia for enhanced search and personalization

Payment options including Stripe, PayPal, Apple Pay, and Google Pay

Dotdigital for marketing automation

This combination allows Mountain Warehouse to leverage a best-of-breed approach while maintaining the ability to integrate custom middleware for effective inventory, pricing, customer data management, and shipping operations.

4. Enhancing Global Operations

The new ecommerce implementation is designed to support the complex operations of Mountain Warehouse. Key advanced capabilities include:

A custom checkout experience that accommodates gift cards and multiple payment methods

Multi-location inventory management and click-and-collect functionality

Advanced order handling capabilities, including split shipments and marketplace workflows

Address lookup and validation integrations

Support for bundled products and digital gift cards

Andrew Norman, Senior Vice President and General Manager of International at Commerce, remarked, “Mountain Warehouse’s launch demonstrates how enterprise retailers can move beyond the limitations of legacy systems. With a composable foundation, they’re able to innovate faster, scale globally, and deliver more seamless customer experiences.”

5. Future-Ready Ecommerce Strategy

With the implementation of this new platform, Mountain Warehouse is now well-positioned to continuously evolve its ecommerce experience, test new capabilities, and scale efficiently with growing demand. The composable approach allows internal teams to focus on building differentiated features while leveraging best-in-class third-party solutions for core commerce functionality.

As the retail landscape continues to change, Mountain Warehouse's adoption of BigCommerce's innovative solutions is a clear indication of a forward-thinking strategy poised for sustained growth and success in the industry.

Original press release