Steel Manager III (SM3): ERP for Metal Service Centers
| Vendor | 4GL Solutions (a Jonas Software company) |
|---|---|
| Headquarters | Markham, Ontario, Canada |
| Ownership | Acquired by Jonas Software (Constellation Software group) in September 2023; previously family-owned since 1984 |
| Deployment | Cloud (SaaS); longstanding on-premises installations exist |
| Target market | Small to midsize metal service centers and steel distributors, primarily in the US and Canada |
| Industries | Metals distribution and processing: pipe and tube, structural steel, specialty steel, plate, wire rope |
| Pricing | Not published; individual quotes |
| Website | 4glsol.com |
Overview
Steel Manager III, usually shortened to SM3, is an ERP written for one kind of business: the metal service center. Its vendor, 4GL Solutions, has worked in metals distribution since 1984 and packs the whole operating cycle into a single suite. Inventory, purchasing, sales, inside and outside processing, barcoding, shipping, and integrated accounting all sit in the same product. The company operates from Markham, Ontario, and serves customers across the United States and Canada plus a smaller international installed base.
Vendor, history, ownership
For nearly four decades 4GL Solutions stayed family-owned and independent. That changed in September 2023, when Jonas Software acquired the firm. Jonas is an operating group of Constellation Software, the Canadian serial acquirer of vertical-market software businesses, and it already owned Jonas Metals Software with the iMetal and Prof.IT lines. Rather than merge the products, Jonas runs 4GL Solutions as a separate business unit inside its metals vertical. Steel Manager III is the third generation of the product line and is marketed today as a cloud ERP for service centers.
What it covers
The metals requirements that generic ERP reaches only through customization are native here: dimensional and heat-based inventory, mill test report management, and traceability from receipt through processing to shipment. Processing management handles both inside operations such as cutting and sawing and subcontracted outside work. Around that core sit sales and quoting, purchasing, barcoding for warehouse transactions, shipping, and a fully integrated general ledger, which removes the need for a separate financial package. Reporting is extensive, and 4GL puts noticeable weight on customization services for customer-specific workflows.
Typical customers
Buyers are metal service centers and steel distributors moving pipe and tube, structural steel, specialty steel, plate, and wire rope, among other product lines. Most sit in the United States and Canada. 4GL also lists installations in the United Kingdom, Ireland, Australia, and several Asian markets. The profile that recurs is a small to midsize distributor or processor that wants metals functionality in the box instead of configuring a generic system into shape.
Licensing, hosting, cost
Cloud is the current delivery model, while longstanding customers continue to run on-premises installations. Nothing is published on price. Quotes are individual and driven by user count and scope, and 4GL delivers implementation, training, and data migration itself. Our ERP cost guide is a useful frame for putting competing metals quotes on comparable terms.
Editorial verdict
SM3 earns a shortlist place for one specific reader: the small or midsize metal service center that wants dimensional inventory, heat traceability, and its general ledger in the same system, from a vendor that has done nothing else since 1984. That integrated accounting core is a real argument for distributors who would rather not operate finance separately. It is not a general manufacturing ERP. A fabricator or discrete producer outside metals distribution and processing should not shortlist it at all. The Constellation ownership cuts both ways. Products under that umbrella tend to be maintained for a long time, but the same parent also sells iMetal and Prof.IT into the identical vertical, so ask directly how the 4GL roadmap is positioned against them. A structured selection process that puts SM3 next to iMetal, Prof.IT, and metals-capable mid-market ERP is the sane way to settle that question.
What the Steel Manager III (SM3) website looks like
Current view of the vendor homepage, captured by our editorial team.

Comparable products
- Aptean Metals ERP (formerly Axis ERP)
- Eniteo (Enmark Systems)
- iMetal and Prof.IT: Metals ERP from Jonas Metals Software
- RealSTEEL (Wolcott Group)
- STRATIX / INVEX (Invera)