Ecommerce Fulfillment

Ecommerce Warehousing and Fulfillment Services

Every order your store ships is a promise to a customer, and if your warehousing can't keep up, that promise breaks fast.

25+ years

In Business

99.9%

Order Accuracy

95% of US

1–2 Day Shipping

48 hrs

Returns Processing

Built for ecommerce Brands, Not Adapted to It

An ecommerce warehouse stores your inventory and ships online orders directly to customers. It connects to your store so orders, inventory management, and tracking data move automatically, with far less manual work on your end.

A NATIONWIDE 3PL PARTNER

A Nationwide Third-Party Logistics Partner

a2b Fulfillment operates as a true end-to-end 3PL, managing every step of the supply chain from inbound receiving and storage to pick, pack, ship, and returns. With strategically located fulfillment centers across the U.S., a2b's network delivers 1-day ground coverage to a large portion of the population and 2-day ground coverage to most U.S. households, helping you meet delivery expectations without premium shipping costs. Ready to see what that means for your brand? Get a free quote or learn what makes a2b different.

Why brands choose a2b

1-Day Shipping

2-Day Shipping

3-Day Shipping

How ecommerce Fulfillment Works at a2b

a2b follows a straightforward ecommerce warehouse workflow that keeps your inventory, orders, and shipping connected from day one.

Connect and Receive

Sync your Shopify, BigCommerce, or marketplace store directly with a2b, then ship your inventory to us for receiving and organized storage in our warehouse space.

Pick, Pack, and Check

Orders route automatically to the warehouse, where each one goes through picking and packing and a quality check before it ever leaves the building.

Ship, Track, and Handle Returns

Orders ship with tracking pushed back to your store, and returns processing inspects and restocks items into sellable inventory when appropriate.

The Unique Challenges of ecommerce Fulfillment

Ecommerce fulfillment puts constant pressure on speed, accuracy, and cost as order volume grows. If your warehouse process isn't built to handle it, your customers will notice the gap.

Peak season delays

Holiday surges and major sales events can overwhelm in-house warehouse operations, causing shipments to fall behind when order volume matters most.

Inventory out of sync

When inventory tracking lags and stock levels drift across your store and marketplaces, oversells happen, and customer frustration quickly follows.

Errors and returns

Human error, mispicks, and damaged orders drive up return rates and invite negative reviews that hurt your brand long after the order ships.

Shipping costs and speed

Rising carrier rates and slow shipping times push shoppers to abandon their carts before they ever check out.

Ayal Latz, Founder, President, and Former Brand Owner

WHY A2B

Why Choose a2b for ecommerce Brands

a2b's warehouse management system (WMS) connects directly with Shopify, Shopify Plus, BigCommerce, WooCommerce, Magento, and other major marketplaces, so your orders flow automatically. Our nationwide network of fulfillment centers delivers fast ground coverage, with accurate picking and packing and quality control on every shipment. We scale warehouse operations for peak seasons and launches, no matter the order volume, and a dedicated client success team supports you throughout.

Why brands choose a2b

Real-Time Inventory Visibility

When an order comes in, you need to know your stock levels are accurate across every channel instantly. a2b's warehouse management system syncs real-time data on inventory management and order status across your store and marketplaces, giving you shipping and returns reporting from any device.

a2b helps us maintain our Seller Fulfilled Prime badge by consistently shipping same day. So glad we found them.

Explore Our Fulfillment Services

a2b Fulfillment offers a full suite of capabilities designed to support ecommerce brands at every stage of growth. From order fulfillment and warehousing to value-added services and customer care support, everything you need is under one roof.

Services for ecommerce brands:

Order Fulfillment

Returns and Reverse Logistics

Kitting and Assembly

Easy 3PL Integrations

We're plugged-in with popular platforms.

View all integrations

Ecommerce Warehouse
Frequently Asked Questions

What is an ecommerce fulfillment warehouse?

An ecommerce warehouse stores inventory and fulfills online orders for direct-to-consumer brands, handling picking, packing, shipping, and returns.

How do ecommerce warehousing and order fulfillment services work?

We warehouse your inventory in our facilities, connect to your shopping cart, and automatically route, pick, pack, and ship each order, sending tracking back to your store.

Why should I choose an ecommerce fulfillment center?

A dedicated warehouse partner that is experienced with ecommerce fulfillment handles storage, picking and packing, and shipping so your team can focus on growth instead of packing boxes.

Does a2b integrate with my ecommerce platform?

a2b connects with major shopping carts and marketplaces, including Shopify, BigCommerce, WooCommerce, and Magento, so orders and inventory sync without manual work.

How fast can ecommerce orders ship?

Shipping speed depends on order cutoff times and the customer's location. a2b's fulfillment centers are built for fast ground delivery across the US.

Ready To Scale Your Online Store?

Growing ecommerce businesses and online retailers need a fulfillment partner that can keep up with the supply chain. Talk to the a2b Fulfillment team, a third-party logistics provider, about warehousing and fulfillment built specifically for online stores, and start delivering faster, more reliably, from day one.

At a2b Fulfillment, we've spent 25+ years building the infrastructure, technology, and expertise that growing ecommerce businesses need to scale confidently. If you're ready to move faster, ship smarter, and give your customers the experience your brand promises.

Talk to a specialist