What Is an eCommerce Accelerator?

An ecommerce accelerator is more than a service provider—it’s a long-term growth partner. While most agencies charge retainers and resellers offer shelf space, true accelerators invest in your brand's marketplace success. Fifth Shelf pioneered a model where we buy your inventory upfront and actively build your revenue across Amazon, Walmart, and global channels. Through our DWP and CSP models, we’ve redefined what a growth partner actually means.

Definition: What Is an eCommerce Accelerator?

An ecommerce accelerator is a hybrid partner that combines elements of an agency, distributor, and growth strategist. Unlike agencies that charge fees or resellers that list passively, accelerators invest directly into your growth through performance-driven models.

Fifth Shelf vs Traditional Resellers or Agencies

• Resellers list your products and wait for organic sales

• Agencies charge fees and rarely take inventory risk

• Fifth Shelf’s DWP model: we buy upfront, fund ads, manage everything

  
  

  See how our Amazon Marketing Strategy completes the funnel

DWP vs CSP: Which Model Fits?

• DWP (Direct Wholesale Partnership): We buy your inventory upfront and invest 5%+ into ads, SEO, and full-service marketplace growth

• CSP (Custom Solutions Partner): You hold inventory, we act like an advanced ecommerce team managing ads, listings, SEO, 1P setup, and strategy

  
  

Best eCommerce Accelerator for CPG Brands

CPG brands thrive with accelerators who understand repeat purchase economics, content-driven discovery, and how to drive conversion across Amazon, Walmart, and beyond. Fifth Shelf’s infrastructure supports fast-moving product cycles at scale.

Learn how our ecommerce fulfillment service integrates with growth plans

eCommerce Fulfillment and Marketing Partner in One

From demand creation to pick-pack-ship—we bridge the full loop. With Fifth Shelf, your listings are optimized, your ad budgets are managed, and your orders are fulfilled without handoffs or outside vendors.