Ekyon builds custom warehouse management systems for fulfillment operations, 3PLs, and e-commerce brands across the US and Canada. Our custom WMS platforms replace expensive SaaS subscriptions with owned software — eliminating per-user fees, API charges, and annual price hikes. Every system includes receiving, inventory management, picking, packing, shipping, and the integrations you need (Shopify, Amazon, carriers, ERP). You own the source code from day one.
Why warehouses are replacing SaaS WMS with custom-built platforms
SaaS warehouse management systems charge $100–$300 per user per month. For a 15-person warehouse, that is $27,000–$54,000 per year in seat licenses alone — before API fees, marketplace connectors, and the 8–15% annual price hikes every SaaS vendor applies. A custom WMS eliminates all of these recurring costs. You pay once to build, then $200–$500 per month for hosting. No per-user fees. No per-transaction charges. No surprise invoices. Over 5 years, a custom WMS costs 50–70% less than the equivalent SaaS subscription for operations with 10 or more users.
What's Included
- Receiving & putaway with barcode scanning
- Real-time inventory management with location tracking
- Pick, pack, ship workflows (single, batch, wave)
- Shipping label generation & carrier rate shopping
- Marketplace integrations (Shopify, Amazon, Walmart)
- Mobile-responsive warehouse floor interface
- Reporting dashboard & analytics
- Unlimited users — zero per-seat fees
- 100% source code ownership
How It Works
Week 1–2 — Discovery & Scoping
We map your warehouse workflows — receiving, putaway, picking, packing, shipping — and document every integration (Shopify, Amazon, carriers, ERP). This produces the build specification with a fixed-price quote.
Week 3–6 — Core Development
We build the WMS around your actual workflows. Not a template — custom logic for how your warehouse operates. Mobile-responsive UI for the warehouse floor. Admin dashboard for management.
Week 5–8 — Integrations & Testing
Direct API connections to your marketplaces, carriers, and ERP. Each integration tested with real data. No per-connector fees — you own every integration.
Week 7–10 — Data Migration & Parallel Run
We migrate your product catalog, inventory, and active orders from your current system. Both systems run simultaneously for 2–4 weeks so nothing falls through the cracks.
Week 9–12 — Go-Live & Handover
Cut over to the new system. Staff training (typically 2–3 days). 30-day post-launch monitoring. Source code in your repository. You own everything.
Pricing
$15,000–$50,000 one-time development + $200–$500/month hosting
Timeline
6–12 weeks from discovery to go-live
Who This Is For
- Warehouses spending $2,000+/month on SaaS WMS and feeling the per-user cost pressure
- 3PLs needing multi-client billing, client portals, and unlimited users
- E-commerce fulfillment operations outgrowing ShipHero, Extensiv, or Logiwa
- Operations with unique workflows that off-the-shelf WMS cannot accommodate
- Companies that want to own their warehouse software as a business asset
Why Not Build In-House?
Building a WMS in-house requires 2–4 full-time engineers for 6–12 months — a $300,000–$600,000 investment in salaries alone, before infrastructure, QA, and ongoing maintenance. Ekyon delivers the same outcome in 6–12 weeks at $15,000–$50,000 because we have built WMS platforms before and reuse proven architecture patterns. You get the ownership benefits of in-house development at a fraction of the cost and timeline.
Get a custom WMS quote
20-minute call — real numbers for your operation, no sales deck.
Book Discovery CallFrequently Asked Questions
How much does a custom WMS cost?
$15,000–$50,000 depending on complexity. Basic WMS (pick/pack/ship + 2 integrations): $15K–$25K. Mid-range with multi-channel and advanced workflows: $25K–$35K. Enterprise with multi-warehouse and AI modules: $35K–$50K. Monthly hosting: $200–$500.
How long does it take to build a custom WMS?
6–12 weeks from discovery to go-live. Basic systems deploy in 6–8 weeks. Complex multi-warehouse or 3PL platforms take 10–12 weeks. This includes discovery, development, integrations, data migration, and parallel testing.
Do I own the source code?
Yes — 100%. The code lives in your repository from day one. You can hire any developer to modify it. If we stop working together, the software is still yours. No vendor lock-in, no platform dependency.
Can you migrate us off our current WMS?
Yes. We handle full data migration — products, inventory, orders, client configurations — and run both systems in parallel for 2–4 weeks before cutover. Zero downtime. We have migrated operations off ShipHero, Extensiv, and legacy platforms.