Custom Warehouse Management System Software Development Services

Off-the-shelf warehouse software forces your operations into rigid templates that slow you down. Keel builds fully custom warehouse management systems tailored to your exact layout, workflows, and team — so you get complete visibility and control from receiving to dispatch, without compromising on how your business actually runs.

Custom warehouse management system software dashboard on a computer screen in an active warehouse

Our Warehouse Management System Services

End-to-end custom WMS solutions built around your operations — from inventory and fulfilment to procurement and production.

Warehouse Management

Custom warehouse workflows built around your layout, naming conventions, and floor structure. Receiving, put-away, picking, packing, and shipping — configured to match your exact processes, not a rigid template.

Inventory Management

Real-time inventory tracking across every location, down to the bin. Lot and serial number tracking, automated reorder points, cycle counting, barcode scanning, and full audit trails for compliance-critical operations.

Order Fulfilment

Optimised wave, batch, and zone-based picking with barcode verification. Automated carrier selection, label printing, tracking sync, SLA monitoring, returns processing, and end-of-day closeouts — all in one system.

Order Management

Manage complex order flows from multi-channel capture to final delivery. Smart inventory allocation, split orders, backorder handling, automated pick/pack rules, and a complete audit trail at any volume.

Procurement System

Manage suppliers, automate purchase order approvals, and streamline replenishment. Three-way matching, multi-currency support, supplier performance tracking, and automatic inventory updates on receipt.

Production Management

Batch management and production scheduling aligned with your orders and delivery timelines. Custom stages, QC checkpoints, and full raw-material-to-finished-goods traceability — modelled around how you actually manufacture.

Software developers and warehouse operations team collaborating around a system design whiteboard

How We Build Your Custom WMS: Our 5-Step Process

Discovery: Map Your Operations in Detail

We start by deeply understanding your warehouse layout, team structure, and existing workflows. Every receiving process, picking method, exception rule, and integration point is documented so the system we build reflects exactly how your business runs — not a generic assumption.

System Design: Model Your Data and Workflows

Build: Rapid Backend and Interface Development

Integration: Connect Your Existing Tools and Hardware

Handover: Go Live and Own Your System Completely

Trusted By Operators

Success Stories

See how fast-moving operations teams have replaced rigid legacy systems with custom-built WMS solutions.

"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 for Your Custom WMS?

Keel is the operations platform built by operators — we understand what it takes to run complex warehouse operations at scale.

Built by Operators

Founded by former Echo executives who shipped 50,000 medicines daily — we build WMS tools from real operational experience, not theory.

Total Ownership

You own your data, your system, and your workflows. No vendor lock-in, no rigid templates — just software that is truly yours to evolve.

Live in Weeks

Launch a fully tailored, production-ready warehouse management system in weeks, not months — without needing a large in-house development team.

Infinitely Flexible

As your warehouse operations grow and change, your system grows with you. Iterate and deploy new workflows without expensive development cycles.

The Team Behind Keel

Operators who have built and scaled complex software from the ground up.

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 founding team built custom operations software to manage the shipment of 50,000 medicines to 600,000 customers daily, growing the business to $130 million in annual revenue. Having experienced first-hand how inflexible off-the-shelf tools fail fast-moving operations, they built the platform they wished existed. In 2024, Keel raised $6 million in seed funding from leading European investors Earlybird and LocalGlobe. Today, Keel empowers operations teams — from warehouse managers to logistics operators — with custom-built systems they fully own and can evolve at speed. Headquartered in Altrincham, Cheshire, Keel serves businesses across the UK and beyond.

4 YearsBuilding operations software for fast-moving teams
Founded2021, by former Echo executives
$6M RaisedSeed funding from Earlybird & LocalGlobe

Frequently Asked Questions

How much does a warehouse management software cost?

The cost of a custom warehouse management system varies depending on the complexity of your operations, number of integrations, and feature requirements. Unlike SaaS tools with fixed monthly fees, a custom WMS built on Keel is priced based on the scope of your build. Contact Keel for a tailored quote — most teams are live within weeks, making the investment significantly faster to realise than traditional enterprise WMS projects.

How long does it take to build a custom WMS with Keel?

What makes a custom WMS better than off-the-shelf software?

Can Keel integrate a custom WMS with our existing tools and platforms?

Does the system support multi-location inventory management?

Will we fully own the WMS once it's built?

What kind of reporting and visibility does the WMS provide?

Is the WMS suitable for regulated industries or compliance-driven businesses?

Still Have Questions About Your WMS Project?

Speak with our team for a no-obligation consultation on your warehouse management requirements.

Certified & Trusted

Awards and Recognition

Information Commissioner's Office (ICO) registration badge

ICO Registered

UK data protection authority registered, ensuring compliant data handling.

Earlybird and LocalGlobe venture capital investor badge

Earlybird & LocalGlobe Backed

Venture-backed by leading European technology investors.

Open source software certification badge for Keel platform

Open-Source Platform

Community-trusted, transparent codebase built on engineering best practices.

Ready to Build Your Custom Warehouse Management System?

Tell us about your warehouse operations and we'll show you how a custom WMS built on Keel can replace rigid off-the-shelf tools with software that truly fits your business. Expect a response within one business day.

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