Steltech Structural

What Steltech Structural does

Steltech Structural Limited is a New Zealand-based structural steel manufacturer, wholly owned by New Zealand Steel Limited (itself owned by BlueScope Steel Limited) and operating from a single facility at 16 Spartan Road, Takanini, Auckland since 1986. The company designs and manufactures custom welded beams, columns and piles using a three-plate welded beam process on Climax Pull Welder and Lincoln Submerged Arc Welder lines, with plate splicing capacity delivering single-piece beams up to 24 metres (30.5 metres by arrangement). Its product portfolio spans standard welded beams (15% weight savings vs hot-rolled equivalents), custom welded beams (30-40% weight savings), high-capacity welded columns for multi-storey construction (up to 40-50mm thickness, 700 kg/m), and the patented VERTEBEAM nested tapered box beam developed with Donovan Group NZ and verified by HERA to AS/NZS 4600:2005 (spans up to 50m, 65m on Donovan projects).

The company's economic model rests on three reinforcing pillars: (1) a vertically secure domestic input chain via parent NZ Steel — New Zealand's only plate steel manufacturer, sourcing iron sand from Waikato North Head — which underwrites local content and supply reliability; (2) free in-house engineering design services that sell the steel by removing friction in the design phase; and (3) a proprietary MemDes design software, maintained via a partnership with SESOC since 2017, that embeds Steltech section properties into the standard toolkit of NZ structural engineers. Distribution is direct (phone, email, website, project portfolio) with no reseller layer, and revenue is one-time project-based sale of custom-manufactured beams and columns.

Steltech targets six horizontal use-case segments — portal frame buildings (primary), car parks and multi-storey, public buildings, bridges (HERA Bridge Development Group membership), crane beams, and columns and piles — and serves a diversified logo list spanning education (University of Auckland B405), logistics (Toll Logistics Hub Wellington), entertainment (Snowplanet), retail (Countdown Manukau), commercial offices (Deloitte Tower Auckland) and government (Manurewa Aquatic Centre, Recall building Penrose). The company is presently broadening its moat with the 2026 launch of STELTECH DCRB, a low-emissions beam delivering up to 83% embodied-carbon reduction versus the NZGBC baseline and certified to Eco Choice Aotearoa EC-41-25 for Green Star eligibility.

Name

Steltech Structural

Legal name

Steltech Structural Limited

Website

https://steltech.co.nz

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Short description

Steltech Structural Limited is a New Zealand-based manufacturer, owned by NZ Steel / BlueScope, that designs and produces custom welded steel beams, columns and the patented VERTEBEAM box beam for commercial, industrial, infrastructure and public-building projects across New Zealand, Australia and the Pacific Islands.

Ownership category

akta.pro rank

Product category

Structural steel fabrication and custom welded beams

NAICS

Fabricated Structural Metal Manufacturing (332312), Architectural and Structural Metals Manufacturing (3323), Plate Work and Fabricated Structural Product Manufacturing (33231)

SIC

Fabricated Structural Metal Products (3440), Prefabricated Metal Buildings & Components (3448)

akta.pro primary industry

Structural Steel Fabrication (IMADACAA)

akta.pro secondary industries

Steel Plate, Sections & Welded Assemblies (IMADACAD), Bridge & Infrastructure Steel Components (IMADACAL), Cold-Formed Steel Framing & Studs (IMADACAF)

Keywords

• Custom steel beams
• Structural steel fabrication
• Welded beam manufacturing
• Steel column production
• Structural engineering services

Headquarters

HQ city

Manukau

HQ country

New Zealand

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Custom Welded Steel Beams and Columns: Manufacture and sale of custom optimised welded beams, columns, and VERTEBEAM products for construction applications. Products are custom-designed to specification and manufactured to length, reducing fabrication time and waste. Revenue is generated through one-time product sales based on project specifications.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Steltech Structural designs, manufactures, and sells custom-optimised welded steel beams, columns, piles, and the patented VERTEBEAM nested tapered box beam for commercial, industrial, infrastructure, and public-building construction projects. Products are manufactured to exact project specifications at the Takanini, Auckland facility using NZ Steel plate and are complemented by free in-house structural design services and the proprietary MemDes design software.

Product overview

Steltech Structural is a New Zealand-based manufacturer of optimised steel beams and columns, operating since 1987. The company offers a portfolio of products including VERTEBEAM® (a nested tapered box beam developed with Donovan Group), custom welded beams (three-plate welded beams for industrial applications), standard welded beams (parallel members), welded columns (high-capacity sections for high-rise), and columns/piles. The company also provides free structural design services and proprietary MemDes® design software. All products are 100% New Zealand made using steel from New Zealand Steel's Glenbrook facility, and the company is a wholly owned subsidiary of New Zealand Steel Limited, which is owned by BlueScope Steel Limited.

Differentiator

Problem solved

Functional benefit

Brands

• VERTEBEAM®: A nested tapered box beam solution developed in partnership with Donovan Group NZ Limited, featuring lightweight yet strong construction with torsional stiffness and spanning capability up to 65m clear spans.
• MemDes®
• STELTECH DCRB®

Products and services

• VERTEBEAM Nested Tapered Box Beam Patented nested cold-formed tapered box beam solution offering lightweight strength and torsional stiffness, enabling clear spans of up to 50 metres (65m with partner Donovan Group). Used by engineers and builders for long-span commercial and public buildings.
• Custom Welded Beams (Three-Plate Welded Beams) Custom-tapered welded members designed for specific applications in single-level industrial and warehousing-type structures. Available as box beams, C beams, T beams, tapered beams, and tri beams. Achieves 30-40% weight savings compared to hot rolled beams.
• Standard Welded Beams (Parallel Members) Standard-dimension welded beams with equal flanges providing approximately 15% weight savings over equivalent hot rolled beams. Section properties published in the 'Design Capacity Table for Welded Sections' for engineer reference.
• High-Capacity Welded Columns Welded sections for columns and beams in high-rise construction up to 40mm and 50mm thickness, in G300 and G350 grades plus G300L15 and G350L15 to meet seismic requirements of NZS 3404. Weights up to 700 kg per metre.
• Columns and Piles Standard and non-standard columns and piles for a wide range of construction projects, including alternatives to standard UBP or UC hot rolled sections and custom pile designs tailored to specific ground conditions.
• Structural Engineering Design Services Free engineering design services for customers across industrial/commercial structures, car parks, multi-storey buildings, columns, piles, bridges, and crane rails. Includes preliminary designs, complete designs with connectors and producer statements, and technical advice.
• STELTECH DCRB Low-Emissions Beam Lowest emissions steel beam product delivering up to 83% embodied carbon reduction versus the NZGBC baseline. Certified under Eco Choice Aotearoa EC-41-25 specification and eligible for Green Star Building Responsible Product Value (RPV) points and MAT-8 Green Star steel credit. Targeted at sustainable construction projects.

Quantifiable outcome

• 30-40% weight savings achieved with custom welded beams compared to hot rolled beams
• +5 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• SESOC (Structural Engineering Society New Zealand)coreStrategic or Co-development PartnerPartnership formed in 2017 where STELTECH took over MemDes design software from NZ Steel to provide ongoing support, maintenance, and ensure the software remains relevant and up-to-date for SESOC members.
• Donovan Group NZ LimitedcoreStrategic or Co-development PartnerPartnership to develop VERTEBEAM nested tapered box beam solution. Donovan Group, as industry leader in portal frame buildings, helped develop the nested cold formed box section product. Joint intellectual property protected by patent.
• Heavy Engineering Research Association (HERA)coreTechnology or IntegrationVERTEBEAM design methodology verified to AS/NZS 4600:2005 by HERA. STELTECH is also an active member of HERA Bridge Development Group.
• New Zealand Steel LimitedcoreOthersSTELTECH is a wholly owned subsidiary of NZ Steel, New Zealand's largest steel making facility and the only plate steel manufacturer in the country. NZ Steel is owned by BlueScope Steel Limited.
• D&H SteelminorImplementation/ SI/ Consulting PartnerSteel fabricator for Snowplanet project, working with STELTECH on bespoke beam solutions for the 40 x 200-metre indoor ski slope.
• Grayson EngineeringminorImplementation/ SI/ Consulting PartnerCollaborated with STELTECH to design and manufacture bespoke beam solutions for University of Auckland B405 engineering school building. Grayson Engineering undertook fabrication and erection.
• Patton EngineeringminorImplementation/ SI/ Consulting PartnerSteel constructor for Toll Logistics Hub project, undertaking 3D modelling, workshop drawings, CAD files, fabrication, welding, and quality management.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Owen Industries: US structural steel fabricator producing custom welded beams, plate girders, and miscellaneous metals for commercial and industrial construction. Directly comparable in custom welded beam manufacturing.
• Grayson Engineering: NZ structural steel fabricator and erection specialist that collaborated with Steltech on the University of Auckland B405 project. Comparable in custom steel fabrication and erection services for NZ building projects.
• D&H Steel: NZ structural steel fabricator that worked with Steltech on bespoke beams for the Snowplanet project. Operates in the same custom welded beam and structural steel fabrication space serving NZ commercial and industrial construction.
• Canam Group: North American manufacturer of fabricated structural steel components and welded sections for commercial, industrial, and bridge construction. Closely comparable in product category (custom welded steel members) and target end markets.
• Patton Engineering: NZ steel constructor that undertook fabrication, welding, and quality management on the Toll Logistics Hub project with Steltech beams. Direct peer in NZ structural steel fabrication for logistics and commercial buildings.
• Donovan Group: New Zealand-based market leader in portal frame buildings and Steltech's co-development partner on VERTEBEAM. Directly comparable in structural steel design and fabrication for commercial/industrial buildings across NZ.

Broad incumbents

• Steel & Tube Holdings: NZX-listed NZ distributor and processor of steel products including structural sections. Larger, broader product portfolio competing for share of NZ structural steel demand, though not focused on custom welded beams.
• Valmont Industries: Global diversified manufacturer of engineered metal products including structural steel components and poles. Overlaps with Steltech in fabricated structural metalwork for infrastructure and construction, though at much greater scale and breadth.
• Fletcher Easysteel: NZ steel distribution and processing arm of Fletcher Building, supplying structural steel sections and accessories. Comparable as a broad incumbent serving the NZ construction supply chain, but not a custom welded beam specialist.

Others

• BlueScope Steel: ASX-listed parent company of NZ Steel and therefore Steltech Structural. A global steel producer with structural steel offerings across Australia, NZ, and Asia; comparable as a structural steel supplier but not a direct competitor given the parent-subsidiary relationship.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SteltechStructural
• LinkedInlinkedin.com/company/steltech-structural

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Steltech Structural