3PL Fulfillment Software for Comprehensive Warehousing Solutions

Managing a 3PL operation means juggling orders, inventory, carriers, and client expectations—all at once. Keel's fulfillment software gives you complete visibility and control across every warehouse workflow, from receiving and pick/pack to shipping and returns. Built around your actual processes, not rigid templates, so your team can execute faster and scale with confidence.

3PL fulfillment software dashboard showing warehouse order management and inventory tracking

Our 3PL Fulfillment Software Services

End-to-end warehousing software modules built for 3PL operators who need flexibility, visibility, and total control.

Fulfilment

Pick, pack, and ship with optimized wave, batch, and zone-based picking, barcode verification, automated carrier selection, label printing, tracking sync, and complete SLA and exception handling built in.

Warehouse Management

Create warehouse workflows that match exactly how your operation runs. Built around your layout, naming conventions, receiving processes, and special handling rules—not a rigid off-the-shelf template.

Inventory Management

Real-time stock visibility across every location, down to the bin. Lot and batch tracking, serial numbers, expiry dates, automated reorders, cycle counting, and full audit trails for compliance-driven teams.

Order Management

Manage complex order flows from multi-channel capture to final delivery. Automate warehouse rules, carrier selection, and tracking updates while controlling pricing, discounts, returns, and approvals at high volume.

Procurement System

Manage suppliers, automate purchase order approvals, and streamline replenishment with three-way matching, multi-currency support, structured approval workflows, and a complete requisition-to-receipt audit trail.

Internal Tools

Automatically generated tools for operations, logistics, customer service, and finance teams. Clean, fast, and intuitive interfaces that require no training—so your entire team can interact with data securely from day one.

Warehouse team implementing 3PL fulfillment software with barcode scanners and order management screens

How Keel Builds Your 3PL Fulfillment System

Discover and Map Your Operations

Keel's team works directly with your operators to understand your warehouse layout, order flows, carrier relationships, and exception handling rules. Every detail of how your 3PL actually runs is documented before a single line of code is written.

Model Your System Around Your Process

Connect Your Existing Tools and Integrations

Go Live and Hand Over Full Ownership

Iterate and Scale With Confidence

Trusted By Operators

Success Stories

See how fast-moving operations teams use Keel to replace legacy systems and gain total control.

"Keel is incredibly powerful. Three days writing code and it all just works from the first attempt! The Schema allows for super easy and intuitive data modelling, particularly around the relationship syntax with all foreign keys sorted. I also just love the DevEx! It's well thought-out and far superior to..."

Jay

"Keel's built-in permission engine is incredibly secure and powerful — No other service does it this well!"

Jay

"Keel is truly one of the most obvious wins I've ever seen in the Ops world"

Usman Mahomed

"Keel is incredibly powerful. Three days writing code and it all just works from the first attempt! The Schema allows for super easy and intuitive data modelling, particularly around the relationship syntax with all foreign keys sorted. I also just love the DevEx! It's well thought-out and far superior to..."

Jay

"Keel's built-in permission engine is incredibly secure and powerful — No other service does it this well!"

Jay

"Keel is truly one of the most obvious wins I've ever seen in the Ops world"

Usman Mahomed

"Keel is incredibly powerful. Three days writing code and it all just works from the first attempt! The Schema allows for super easy and intuitive data modelling, particularly around the relationship syntax with all foreign keys sorted. I also just love the DevEx! It's well thought-out and far superior to..."

Jay

"Keel's built-in permission engine is incredibly secure and powerful — No other service does it this well!"

Jay

"Keel is truly one of the most obvious wins I've ever seen in the Ops world"

Usman Mahomed
The Keel Difference

Why Choose Keel?

Keel is the modern alternative to rigid ERP systems—built specifically for operators who need flexibility, speed, and true ownership of their fulfillment software.

Built For You

Every workflow, naming convention, and exception rule is modelled around your exact 3PL operation—not a generic template.

Live in Weeks

Go from requirements to a production-ready fulfillment system in weeks, not months, with Keel's managed build and migration service.

Full Ownership

Your team owns and controls the software entirely—iterate, extend, and evolve your system without depending on vendor roadmaps.

Proven at Scale

Founded by operators who shipped 50,000 medicines daily at Echo—Keel is built for the real-world complexity of high-volume fulfilment.

The Team Behind Keel

Built by operators who've lived the challenges of high-volume fulfilment.

Keel was founded in 2021 by three former executives from Echo, Europe's fastest growing online pharmacy—later acquired by Pharmacy2U. As CEO, CTO, and CPO at Echo, the founders built custom software to manage operations shipping 50,000 medicines to 600,000 customers daily, scaling the business to $130 million in annual revenue. They experienced first-hand how inflexible legacy systems couldn't keep pace with a fast-moving operation, so they built the solution they wished had existed. In 2024, Keel raised $6 million in seed funding from leading European investors Earlybird and LocalGlobe. Today, Keel empowers operators everywhere—from 3PLs and manufacturers to regulated industries—with flexible, powerful fulfillment software they truly own and can evolve as their business grows.

$6M Seed FundingBacked by Earlybird and LocalGlobe in 2024
50K+ Daily ShipmentsFounders scaled operations to this volume at Echo
4 Years of InnovationBuilding the modern ERP alternative since 2021

Frequently Asked Questions

What is 3PL fulfillment software and how does it differ from a standard WMS?

3PL fulfillment software is designed specifically for third-party logistics providers managing warehousing and order fulfillment on behalf of multiple clients. Unlike a standard WMS focused on a single operation, 3PL software must handle multi-client inventory separation, client-specific workflows, billing structures, and carrier integrations—all within a single platform that maintains complete visibility for every account.

Can Keel's fulfillment software integrate with our existing ecommerce platforms and carrier systems?

How long does it take to go live with Keel's 3PL fulfillment software?

Does Keel support multi-location warehouse management?

What inventory tracking capabilities does the platform include?

Can we customize the workflows and rules to match our specific 3PL processes?

How does Keel handle returns processing and exception management?

Is Keel suitable for fulfillment operations in regulated industries?

Still Have Questions About Keel?

Talk to our team for a no-obligation walkthrough of how Keel fits your 3PL operation.

Certified & Trusted

Awards and Recognition

ICO UK Information Commissioner's Office registration badge

ICO Registered

UK data protection authority registration for compliant data handling.

Earlybird and LocalGlobe venture capital investment badge

Earlybird & LocalGlobe Backed

Seed funded by leading European venture investors in 2024.

Open-source platform badge for Keel on GitHub

Open-Source Platform

Publicly available codebase built on engineering best practices.

Ready to Take Control of Your Fulfilment Operations?

Tell us about your 3PL operation and a Keel expert will show you exactly how the platform can be built around your workflows. No generic demos—just a real conversation about your specific needs.

Contact Us Today

For immediate assistance, feel free to give us a direct call at You can also send us a quick email at bobbi@keel.xyz