Diverse Engineering

What Diverse Engineering does

Diverse Engineering is a marine and industrial engineering firm headquartered in Port Nelson, New Zealand, providing comprehensive engineering services to enterprise and mid-market clients across both land-based and maritime sectors. The supporting data describes an entity (operating under the closely aligned Kernohan brand from the same Port Nelson address at 121 Vickerman St) offering twelve core service lines: maintenance, heavy fabrication, stainless fabrication, process piping, machine shop, marine engineering, propeller manufacturing, profile cutting, draughting and design, foundry, innovation/prototyping, and stillages and racking. The firm serves clients across aquaculture (Gigablue NZ), wine (Villa Maria, McCashins), MDF and wood products manufacturing (Daiken Southland, CarterHolt Harvey), municipal water and infrastructure (Nelmac, Matai Dam, Rabbit Island), mining (Bathurst Resources), cement (Holcim), and oil & gas/marine (OMV/Modec), executing projects ranging from emergency repairs (Holcim's $1.2M 12-day cement kiln repair using a first-ever laminated tyre method) to large-scale staged fabrication (500+ seismic-rated barrel racks for Villa Maria) and vessel upgrades (OMV/Modec swivel installation).

The firm's technology stack is grounded in physical workshop capabilities — machine shop, foundry, fabrication bays, and design/draughting — rather than digital or software platforms. There is no evidence of app-based products, API integrations, SDKs, or proprietary software in the data. The business model is project-based professional services delivered through direct sales engagement: pricing is quote-based and not publicly disclosed, contracts are per-project, and revenue is generated through customized engineering work for industrial clients. The go-to-market motion is sales-led via the company website, direct phone (+64 3 548 2399), email ([email protected]), and project case studies showcasing capabilities across verticals. Distribution is direct-to-client with no intermediaries, and services are delivered either on customer sites (maintenance, shutdowns, installations) or from the Port Nelson facility (fabrication, machining, foundry work).

The business is privately held with no disclosed parent company, no institutional investors, and no funding rounds. The firm holds TOTIKA (NZ contractor health and safety prequalification) and TELARC (quality/safety) certifications, and operates under a registered brand trademark. Geographic concentration is in the Nelson/Tasman region of New Zealand's South Island, with project execution extending to Dunedin, Marlborough, Hawke's Bay, and Southland. Customer engagement is dominated by enterprise buyers, with one mid-market engagement identified (McCashins brewery).

Name

Diverse Engineering

Legal name

Kernohan

Website

https://diverseengineering.co.nz

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

Diverse Engineering is a marine and industrial engineering firm headquartered in Port Nelson, New Zealand, providing fabrication, machining, marine engineering, and custom manufacturing services to enterprise clients across aquaculture, manufacturing, wine, mining, and offshore-marine sectors.

Ownership category

akta.pro rank

Product category

Industrial and Marine Engineering Services

NAICS

Ship Building and Repairing (336611), Engineering Services (541330)

SIC

Ship & Boat Building & Repairing (3730), Services-Engineering Services (8711)

akta.pro primary industry

Steel Fabrication & Marine Engineering (Custom Fabrication, Modifications, Conversions) (TLAHAMAH)

akta.pro secondary industries

Marine Outfitting & Interior Refurbishment (TLAKAKAL), Project Management & Owner’s Engineering / Technical Consultancy (Spec Writing, Bid Support, Site Support) (IMAJAGAO), Engine & Mechanical Overhaul (Main/Aux Engines, Pumps, Valves, Compressors) (TLAHAMAD)

Keywords

• Marine engineering services
• Industrial fabrication
• Ship repair
• Process piping
• Custom metal manufacturing

Headquarters

HQ city

Port Nelson

HQ country

New Zealand

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Services: Project-based engineering services including fabrication, maintenance, machining, marine engineering, and custom manufacturing. Revenue generated through direct project contracts with industrial clients requiring specialized engineering capabilities. Services range from emergency repairs to complex new installations.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Diverse Engineering delivers marine and industrial engineering services including fabrication, machining, ship repair, maintenance, process piping, propeller manufacturing, foundry casting, and custom manufacturing. Work is performed both at the Port Nelson facility and on customer sites. Services span emergency repairs, shutdowns, installations, and full-scale custom fabrication for industrial and marine clients in the Nelson region.

Product overview

Kernohan is a traditional engineering services company offering a comprehensive portfolio of specialized services including maintenance, heavy fabrication, stainless fabrication, process piping, machine shop, marine engineering, propellers, profile cutting, draughting and design, foundry, innovation, and stillages and racking. The company operates as a single unified service offering (not a platform-plus-modules architecture), where customers engage specific services as needed for their engineering projects. Services range from emergency repairs to full-scale fabrication and manufacturing, serving both land-based producers and maritime clients in the Nelson region and beyond.

Differentiator

Problem solved

Functional benefit

Products and services

• Maintenance Services Expert maintenance services available anytime, anywhere for industrial, commercial, and marine applications, including emergency repairs and planned shutdowns.
• Heavy Fabrication Advanced, high-quality heavy fabrication services tailored to customer specifications for industrial applications.
• Stainless Steel Fabrication Expert stainless steel fabrication built to last for industrial and marine applications.
• Process Piping Certified, experienced, and comprehensive process piping solutions for industrial facilities.
• Machine Shop Services Precision machining services with expertise and speed for custom components.
• Marine Engineering Maintenance, innovation, and safety services for marine vessels and equipment, including ship repair work.
• Propeller Manufacturing Propellers designed, engineered, and manufactured for marine vessels.
• Profile Cutting Precision, state-of-the-art profile cutting services for various materials.
• Draughting and Design Design, prototyping, and refinement services for engineering projects.
• Foundry Services Casting services where heat meets craft for custom metal components.
• Innovation Services Turning ideas into practical reality through prototyping and innovative engineering solutions.
• Stillages and Racking Custom stillages and racking solutions for storage and logistics needs, including seismic-rated wine barrel racks.

Quantifiable outcome

• 500+ seismic-rated wine barrel racks delivered for Villa Maria wineries
• +2 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Seven partnerships are on record, tiered core.

• Gigablue NZcoreStrategic or Co-development PartnerPartnership with international aquaculture innovator Gigablue to design, test, and deliver large inflatable sea pens for open-ocean deployment off the coast of Dunedin. Kernohan led the project from concept through to production, managing prototyping, sea trials, full fabrication, logistics, and on-site vessel setup.
• Villa MariacoreStrategic or Co-development PartnerSupplied over 500 seismic-rated wine barrel racks for Villa Maria's Marlborough and Hawke's Bay wineries. Custom fabricated and hot-dip galvanized for durability, with staged consignments to align with production timelines.
• Daiken SouthlandcoreStrategic or Co-development PartnerExecuted major shutdown at Daiken Southland's MDF press plant with a 30-man team. Successfully replaced the heating platen and stainless-steel belt, ensuring minimal downtime through precise coordination and around-the-clock effort.
• NelmaccoreStrategic or Co-development PartnerFabricated a 120,000-litre stainless steel sludge tank for Nelmac on Bell Island. The tank features multiple pipe penetrations, recirculating sludge system with Vaughan chopper pump, bypass to transfer pump, pigging station with safety facilities.
• Bathurst ResourcescoreStrategic or Co-development PartnerFacilitated the full rebuild, strengthening and commissioning of Bathurst mines large rotary breaker and cv6 conveyor including leveling, alignment, fabrication, reconditioning parts and installation.
• HolcimcoreStrategic or Co-development PartnerEmergency repair developed into a complex replacement job with 12-day duration and $1.2 million budget. First-ever innovative method using a laminated tyre was implemented for the cement kiln repair.
• OMV/ModeccoreStrategic or Co-development PartnerWorking on a vessel of unprecedented scale in Nelson. Well needed upgrades and installation of a new swivel to enable rotation on its mooring for the oil and gas/marine sector.

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Direct peers

• Q-West Boat Builders: Q-West is a Nelson/Westport-based marine builder providing aluminium and steel vessel construction, refit, and repair services - overlapping the subject company's marine engineering, fabrication, and propeller-related services within the same Nelson regional market.
• McKay Engineering: McKay Engineering is a New Zealand heavy engineering firm delivering fabrication, machining, and industrial maintenance - a direct peer on the industrial fabrication, machine shop, and maintenance offering of the subject company.
• Brightwater Engineering: Brightwater Engineering is a Top-of-South-Island NZ fabrication and machining firm serving industrial, marine, and infrastructure customers - a direct peer on heavy/stainless fabrication, machining, and custom manufacturing comparable to the subject firm's service stack.
• Orams Marine Services: Orams is a New Zealand marine services yard offering ship repair, refit, fabrication, and marine engineering - directly overlapping the subject company's marine maintenance, fabrication, and vessel upgrade work, particularly for commercial and offshore-support vessels.
• Keystone Engineering: Keystone Engineering is a New Zealand mechanical and structural engineering firm providing fabrication, machining, and on-site maintenance to industrial clients - directly comparable on process piping, heavy fabrication, and emergency maintenance engagements.

Broad incumbents

• McConnell Dowell: McConnell Dowell is a Pacific-region specialist in marine and infrastructure construction (ports, wharves, bridges, dredging). Its marine piling, structural fabrication, and coastal infra work overlaps with the heavy fabrication and process piping capabilities described for the subject company.
• Downer Group: Downer is a large Australasian infrastructure and engineering services provider with industrial maintenance, fabrication, and asset-management capabilities. It is a broader incumbent whose portfolio overlaps the industrial maintenance, shutdown, and process-piping work the subject company executes regionally.
• Babcock Australasia: Babcock Australasia delivers marine engineering, asset management, and sustainment services across Australia and New Zealand, directly comparable to the marine maintenance and engineering side of the subject company's business, though at a much larger scale and broader portfolio.
• BAE Systems Australia (Maritime): BAE Systems Australia operates major shipbuilding and sustainment yards (e.g., Henderson, Williamstown) doing ship repair, marine fabrication, and engineering services comparable in capability type to the subject company, though at defense-scale rather than commercial scale.

Regional players

• Fulton Hogan: Fulton Hogan is a major Australasian infrastructure contractor with civil and mechanical capabilities servicing industrial and resource clients in the same regions as the subject company. It overlaps on heavy fabrication and infrastructure maintenance but is not a direct marine engineering competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/diverse-engineering-services-ltd

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Diverse Engineering