The Great Retail Marketplace Rush: Why Traditional Retailers Are Building Third-Party Marketplaces

Traditional retailers are rapidly launching third-party online marketplaces to expand product selection, drive new revenue, and stay competitive in the evolving digital commerce landscape.

Retailers are experiencing a major transformation, with traditional brick-and-mortar chains rapidly launching their own online third-party marketplaces.

This trend is reshaping the digital retail sector from a first-party sales model to a platform-based approach, enabling businesses to facilitate commerce for external sellers across categories like groceries, home improvement, fashion, and electronics.

Key Drivers Behind Marketplace Adoption

  • Expanded Product Assortment: Retailers can increase SKUs from thousands to millions by onboarding third-party sellers, without the risk and expense of managing product inventory.
  • Revenue Growth: According to industry benchmarks, Amazon’s marketplace now accounts for 60%+ of its sales volume, while Walmart’s marketplace contributes billions in yearly revenue—demonstrating the scalability and profitability of this model.
  • Network Effects & Customer Value: More sellers create bigger product selections, attract more shoppers, and drive further seller interest. Established retailers leverage their existing brand recognition and customer base to grow marketplace adoption.

Major Retailers Launching Online Marketplaces (2023–2025)

Retailer: Tesco

Marketplace Launch Date: June 2024

Platform Technology: Marketplacer SaaS

Key Features: Key Features: Expanded from launch to 300,000+ SKUs in 8 months; aims to be “one-stop shop” [3,000% growth]

Retailer: Lowe’s

Marketplace Launch Date: December 2024

Platform Technology: Mirakl

Key Features: Fast seller onboarding; scaling from “low hundreds” to “high hundreds” of sellers

Retailer: Kohl’s

Marketplace Launch Date: 2023

Platform Technology:

Key Features: Digital sales = 30% of annual revenue; market expansion is core growth strategy

Retailer: Best Buy

Marketplace Launch Date: Planned mid-2025

Platform Technology: Mirakl

Key Features: Returns to marketplace; broadening beyond electronics into health, wellness, and accessories

Retailer: Asda

Marketplace Launch Date: October 2024

Platform Technology: VirtualStock

Key Features: Launch partner Decathlon; focus on partner brand alignment and seamless integration

Retailer: Sainsbury’s

Marketplace Launch Date: Planned 2024

Platform Technology: –

Key Features: Fashion-focused; hybrid online/offline model with partner brands sold in stores and web

Why the Retail Marketplace Strategy Is Now Essential

  • Competitive Advantage: Retailers adopting marketplaces can quickly respond to changing consumer demands and remain competitive against e-commerce giants.
  • Convenience & Selection: Marketplaces allow retailers to offer unprecedented product variety, attracting more customers seeking one-stop shopping experiences.
  • New Revenue Streams: Platforms capitalise on existing traffic, offering sellers access to high-quality customers and retailers a commission-based model.

Marketplace Model Benefits: A Closer Look

  • Commission-Based Revenue: Retailers earn fees for each transaction, shifting operations from inventory-heavy e-commerce to scalable profit generation.
  • De-risked Inventory: By selling third-party products, retailers minimise warehousing, forecasting, and inventory investment.
  • Rapid Category Expansion: New categories (fashion, health, accessories) can be added without traditional supply chain constraints.

Key Technology Partnerships in Retail Marketplace Transformation

  • Marketplacer: Powers Tesco’s marketplace, enabling rapid SKU growth and seamless integration for multiple sellers.
  • Mirakl: Provides scalable onboarding for Lowe’s and Best Buy, allowing fast expansion of product selection and seller base.
  • VirtualStock: Supports Asda’s marketplace, focusing on efficient brand integration and e-commerce operations.

The Future of Retail Is Platform-Based

The convergence of marketplace adoption across top retailers signals a paradigm shift where third-party retail platforms are becoming a necessity for growth. As customer expectations around selection and convenience rise, retailers using marketplace models are better positioned to scale, diversify product categories, and dominate digital commerce.

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