The New On Ramp to Walmart: How Its Marketplace Is Fueling the Next Wave of Supplier Growth

A Marketplace That Is Changing the Rules of Entry

Walmart Marketplace is no longer a side project. It has become a core part of the company’s growth strategy, hosting more than 200,000 active third-party sellers, with roughly 44,000 joining in the first months of 2025, according to Marketplace Pulse. That growth shows how quickly the platform is expanding its role as both a shopping destination and a supplier incubator.

For Walmart, the marketplace is a bridge between its stores and its online business. For suppliers, it is a place to prove demand and readiness before approaching buyers about shelf placement. Many brands now start on Walmart.com, refine pricing and fulfillment strategies, and later transition into stores once the data supports the move.

Kantar estimates that Walmart now reaches more than 120 million weekly online shoppers. Nearly all of the 420 million products available on Walmart.com come from marketplace sellers. The scale of the platform has made it one of the most effective launch points for new consumer brands in North America.

Building a Path for Small and Emerging Sellers

In 2025 Walmart expanded its support for small businesses with the Grow With Us program. This initiative includes four tracks: learning, discovery, mentorship, and financing.

The learning track offers about 30 online courses covering merchandising, marketing, and operations. The mentorship track pairs new sellers with experienced partners who can help them improve listings and navigate the platform. The financing track gives small businesses access to early-payment and loan programs to help manage cash flow. The discovery track connects promising brands with Walmart buyers searching for innovative products.

Leah Platz, Walmart’s senior vice president of merchandising excellence, said the program was designed to make Walmart the easiest place to start and the best place to grow. By simplifying onboarding and offering education and funding, Walmart is lowering the barriers that have traditionally kept small brands from competing at retail scale.

Marketplace as a Testing Ground for Store Success

Walmart executives have made it clear that the marketplace is now part of the company’s merchandising strategy. At a recent Goldman Sachs retail conference, David Guggina, Walmart’s chief e-commerce officer, said marketplace performance now helps determine which products belong in physical stores.

He cited the example of Arctic, a brand that began as a third-party seller offering insulated drinkware. Its success online led Walmart to stock the brand in thousands of stores nationwide. Many other brands are following the same pattern, starting with a few SKUs online and expanding to shelves after proving customer demand and operational readiness.

Walmart’s fulfillment data helps identify which products sell consistently and at what price points. This process allows buyers to make evidence-based decisions about what to stock in stores. For suppliers, marketplace success can be the first and most persuasive argument for in-store distribution.

Why the Marketplace Works for Small Brands

The marketplace gives smaller sellers three important advantages: scale, infrastructure, and credibility.

Scale: Walmart’s online traffic rivals its in-store foot traffic. Products that perform well can gain visibility across Walmart’s digital ecosystem, including search results, curated product carousels, and advertising placements.

Infrastructure: Walmart Fulfillment Services (WFS) allows sellers to use Walmart’s network for storage, packing, and delivery. This helps smaller brands offer faster and more reliable shipping without major investment in logistics.

Credibility: Shoppers already trust Walmart, which makes them more comfortable purchasing from marketplace sellers. That built-in credibility can shorten the sales cycle and improve conversion rates.

At Walmart’s 2025 Open Call event, many of the 650 entrepreneurs pitching buyers were already active on the marketplace. For them, the event was about expanding from digital distribution to physical store placement.

The Challenges Behind the Opportunity

The opportunity is large, but so is the competition. As more sellers join the marketplace, categories like home, beauty, and health have become crowded. Advertising costs are rising, and consistent performance has become essential to staying visible in search.

Walmart monitors seller metrics closely. Late deliveries, inaccurate listings, or poor reviews can quickly lower placement or lead to suspension. Category restrictions are also tightening as Walmart improves brand protection and counterfeit prevention. Sellers must ensure compliance documentation and product traceability are in order.

Financial readiness is another key factor. Even with Walmart’s early-payment and loan options, sellers need to budget for fulfillment fees, advertising, and inventory management. Treating marketplace participation with the same rigor as wholesale operations is critical for long-term growth.

How to Use the Marketplace as an On Ramp

Start with a focused product set. Choose one to three products that have already performed well elsewhere. Use sales and keyword data to confirm demand on Walmart.com and ensure pricing fits Walmart’s customer expectations.

Build listings for clarity and speed. Titles, descriptions, and images should be optimized for mobile and for Walmart’s search algorithms. Clear, accurate listings improve discoverability and reduce returns.

Choose the right fulfillment strategy. Using Walmart Fulfillment Services can improve search placement and customer satisfaction. If you self-fulfill, match WFS delivery standards as closely as possible.

Use advertising to learn, not just sell. Invest in sponsored listings early to understand which keywords and creatives perform best. Track every campaign against contribution margin and use insights to guide future investments.

Leverage Walmart’s educational tools. The Grow With Us resources and seller community provide practical training on packaging, compliance, and marketing fundamentals.

Track quality metrics weekly. Monitor delivery times, customer reviews, and return reasons. Walmart rewards consistent performance with higher visibility.

Prepare your story for buyers. When performance is strong, compile a summary that includes sales velocity, repeat purchase rates, and customer feedback. Data from the marketplace can make a compelling case to Walmart buyers for in-store placement.

What This Means for Existing Walmart Suppliers

For established suppliers, the marketplace is a testing lab for new ideas. It allows for quick experiments with new flavors, pack sizes, or promotional bundles without waiting for store resets or buyer approval. The data from these experiments can refine product development and strengthen category strategy.

Marketplace participation also exposes suppliers to new competition. Fast-moving marketplace brands often test and iterate more quickly than traditional suppliers. The best defense is to match that agility while using the advantages of established supply chains, packaging expertise, and shopper marketing resources.

By blending the speed of marketplace learning with the scale of in-store presence, suppliers can strengthen their long-term position inside Walmart’s ecosystem.

The Road Ahead

Independent research from Marketplace Pulse, Kantar, and multiple retail intelligence firms confirms that Walmart’s marketplace continues to grow faster than any other large retail platform. Walmart itself is doubling down, investing in fulfillment, advertising tools, and small business financing to make the platform more accessible.

For emerging brands, this is the most direct path ever created into Walmart’s ecosystem. For established suppliers, it is a channel for experimentation, innovation, and category defense. And for Walmart, it is the system that connects its digital scale with the local trust of its stores.

The brands that treat the marketplace as an on ramp, not just another sales platform, will be the ones that define the next generation of supplier growth.

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