Donnelly Engineering
Donnelly Engineering is a privately held Australian mechanical workshop founded in 1992 in Southport, Queensland, providing engine reconditioning, general engineering, and marine engineering services to private owners, workshops, fleets, and councils across the Gold Coast region.
- Company typePrivate
- Founded1992
- HeadquartersSouthport, Australia
- Headcount11–50
- GTM typeB2B and B2C
- OfferingServices
What Donnelly Engineering does
Donnelly Engineering is a privately held, founder-owned mechanical engineering workshop established in 1992 and headquartered at Unit 2, 82 Ferry Rd, Southport, Queensland, Australia. The business operates as a one-stop engineering shop providing engine reconditioning, general engineering, and marine engineering services, and has completed more than 40,000 jobs across automotive, diesel, marine, farming, transport, fleet, and council customers since inception.
The company's technical capabilities rest on a modern workshop equipped with precision CNC and conventional machinery, including a Serdi 100 seat cutter and a Picconotti 1500mm surface mill/grinder fitted with a custom 1150mm mill fast jig. Core service offerings span complete engine reconditioning (boring, honing, pressure testing, crack testing, assembly), general engineering (turning, milling, welding, gear cutting, spray welding, keyway broaching, fabrication), and marine-specific work (propeller shaft manufacture and straightening, rudder work, heat exchanger cleaning and pressure testing). The firm also sells its proprietary Australian-made Donnelly Pressure Tester, a powder-coated device that heats water under pressure to identify leakage in cylinder heads and blocks.
Donnelly generates revenue through per-job professional engineering services, hardware and parts sales (engine rebuild kits, cylinder head kits, exchange heads, valves, gaskets, head bolts, cam bearings), and an exchange engine/cylinder head program as a lower-cost alternative to full rebuilds. Pricing is quote-based; cylinder head kits start from AUD $400+. The go-to-market is sales-led with a local field-service emphasis: free pickup and delivery in the Gold Coast area, on-site work capability for machinery maintenance and modifications, and direct phone/contact-form conversion. The company advertises a 12-month Australia-wide warranty on assembled engines and cylinder heads (3 months for marine engines), operates with a small staff of 6 full-time and 2 part-time employees with 125 years' combined experience, and has grown organically without external funding.
Donnelly Engineering firmographics
Firmographics- Name
- Donnelly Engineering
- Legal name
- Donnelly Engineering
- Website
- https://donnellyengineering.com.au
- Company type
- Private
- Founded year
- 1992
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Donnelly Engineering is a privately held Australian mechanical workshop founded in 1992 in Southport, Queensland, providing engine reconditioning, general engineering, and marine engineering services to private owners, workshops, fleets, and councils across the Gold Coast region.
- Ownership category
- akta.pro rank
Donnelly Engineering industry classification
Industry- Product category
- Mechanical Engineering Services
- NAICS
- Industrial Machinery Manufacturing (3332)
- akta.pro primary industry
- Welding, Fabrication & Field Machining Services (On-site) (IMAIACAD)
- akta.pro secondary industry
- CNC Machine Tools (Turning, Milling, Machining Centers) (IMAHADAA)
Keywords
Where Donnelly Engineering is headquartered
LocationHeadquarters
- HQ city
- Southport
- HQ country
- Australia
- HQ region
- Oceania
Offices1 record
Markets served
Donnelly Engineering business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain, Marketing or Sales
Revenue model
- Professional Engineering Services: Engine reconditioning, general engineering and marine engineering services billed per job/project. Includes machining, welding, assembly and testing services.
- Parts and Components Sales: Sale of quality petrol, engine rebuild kits, cylinder exchange heads, new cylinder heads, inlet/exhaust valves, VRS gasket sets, head bolts, cam bearings.
- Exchange Engine and Cylinder Head Programs: Exchange petrol and diesel engines and exchange cylinder heads as alternative to full rebuild.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Competitive pricing with best value rates in the market |
| Unit Pricing | Pay-as-you-go | Cylinder Head Kits starting from $400+ |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels3 records
Donnelly Engineering product offering
Product offeringCore offering
Donnelly Engineering is a mechanical engineering workshop that provides Engine Reconditioning, General Engineering, and Marine Engineering services from its Southport (Gold Coast, Queensland) facility, including precision machining, welding, boring, honing, pressure testing, crack testing, propeller shaft manufacture and straightening, heat exchanger cleaning, and custom fabrication. The company also manufactures and sells its proprietary Australian-made Donnelly Pressure Tester and supplies cylinder head kits, engine rebuild kits, and exchange cylinder heads (petrol and diesel). Service work is delivered via direct workshop service, on-site mobile visits, and free pickup and delivery in the Gold Coast area.
Product overview
Donnelly Engineering is a mechanical engineering workshop operating since 1992, offering three core service areas: Engine Reconditioning (complete engine rebuilding, cylinder head reconditioning, pressure testing), General Engineering (precision machining, welding, fabrication), and Marine Engineering (propeller shafts, marine engines, rudder work). They also sell specialized products including The Donnelly Pressure Tester (their proprietary Australian-made product), Cylinder Head Kits, Engine Rebuild Kits, and Cylinder Exchange Heads. The company provides a one-stop mechanical engineering workshop with free pick-up and delivery service in the Gold Coast area.
Differentiator
Problem solved
Functional benefit
Products and services
- Engine Reconditioning Complete engine reconditioning service including assembled engines, cylinder head reconditioning, boring, honing, pressure testing, and crack testing for automotive, diesel, and marine applications. Targets vehicle owners, mechanical workshops, and franchise dealer workshops.
- General Engineering Precision general engineering services including turning, milling, welding, gear cutting, spray welding, keyway broaching, fabrication, and custom machining for various industrial applications. Targets industrial customers, farming, transport, and commercial fleet operators.
- Marine Engineering Marine-specific engineering services including propeller shaft manufacture and straightening, marine engine reconditioning, rudder straightening, heat exchanger cleaning and pressure testing, and welding for boats and vessels, with a 3-month warranty on marine engines. Targets marine operators and boat owners.
- The Donnelly Pressure Tester Australian-made proprietary pressure tester that heats water under pressure to simulate normal in-car operating conditions and identify leakage in cracked cylinder heads and blocks, with powder-coated construction for durability. Sold as a standalone product via brochure inquiry.
- Cylinder Head Kits Complete cylinder head kits including a new cylinder head, inlet valves, exhaust valves, VRS gasket set, head bolts, and cam bearings, suitable for use with LPG, backed by a 12-month Australia-wide warranty. Targets vehicle owners and workshops.
- Engine Rebuild Kits Engine rebuild kits, VRS kits, and cylinder head kits supplied at competitive prices for various vehicle applications. Targets vehicle owners and workshops.
- Cylinder Exchange Heads Exchange cylinder heads available for petrol and diesel engines in various sizes and configurations, provided as a faster, cost-effective alternative to a full engine rebuild. Targets vehicle owners and mechanical workshops.
Quantifiable outcome
- Over 40,000 jobs completed successfully since 1992
- +1 more outcomes
Companies that use Donnelly Engineering
Customer profileSegments8 records
Ideal customer profiles4 records
Donnelly Engineering technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Donnelly Engineering partnerships and signals
Strategic signalScale indicators5 records
Recent moves5 records
Expansion highlights4 records
Donnelly Engineering competitors and assessment
Company assessmentDirect peers
- Sutton Tools: Sutton Tools is an Australian manufacturer of precision cutting tools and metalworking tooling used in machining workshops. It is comparable to Donnelly because Donnelly operates general engineering and precision machining services using similar cutting tool technologies and serves the same Australian metalworking customer base.
- Hard Chrome Engineering: Hard Chrome Engineering is an Australian provider of specialised hard chrome plating, machining and heavy equipment component repair. It is comparable to Donnelly because both businesses undertake precision machining, component reclamation and heavy equipment engine and drivetrain repair for mining, transport and industrial customers across Australia.
- Steber International: Steber is an Australian boat manufacturer and marine services company requiring propeller shaft, marine engine and mechanical engineering support. It is comparable to Donnelly because it sits in the same marine engineering value chain on the NSW/QLD coast and could be a customer for propeller shaft manufacture, rudder work and marine engine reconditioning services.
Others
- Engine Reconditioners Association of Australasia: The Engine Reconditioners Association of Australasia is the industry body representing engine reconditioning workshops across Australia and New Zealand. It is comparable to Donnelly because its member base consists of the same independent precision engine reconditioning workshops that compete with and alongside Donnelly in the Australian market.
Broad incumbents
- Repco Engine Reconditioning Services: Repco is Australia's largest automotive aftermarket distributor and operates engine reconditioning and machining services through its workshop network. It is comparable to Donnelly because it serves the same private vehicle owner and mechanical workshop segments for engine rebuild, cylinder head and component machining, but at significantly larger national scale.
- Burson Auto Parts: Burson is a major Australian automotive parts distributor serving workshops and trade customers, with adjacent engine reconditioning and machining services. It is comparable to Donnelly because it sells engine rebuild kits, cylinder heads and related components to the same mechanical workshop customer base across Australia.
- Hastings Deering: Hastings Deering is the authorised Caterpillar dealer in Australia providing heavy equipment sales, service and component rebuild. It is comparable to Donnelly because Donnelly's blog showcases Caterpillar conrod and heavy equipment drive shaft work, indicating shared customers in mining, earthmoving and heavy diesel engine reconditioning.
Regional players
- Riviera Australia: Riviera is a major Australian luxury motor yacht builder based on the Gold Coast. It is comparable to Donnelly because Riviera's manufacturing and after-sales operations require marine engine reconditioning, propeller shaft work and heat exchanger servicing, the same marine engineering services Donnelly provides on the Gold Coast.
- Cox Automotive Australia: Cox Automotive operates auction, remarketing and automotive services businesses across Australia. While not a direct reconditioning competitor, it is comparable to Donnelly because it touches the same automotive aftermarket ecosystem and serves dealer workshops and commercial fleet customers with vehicle lifecycle services.
- ANCA CNC Machines: ANCA is an Australian manufacturer of CNC grinding and machine tool equipment used in precision engineering workshops. It is comparable to Donnelly because Donnelly relies on similar CNC and precision metalworking equipment in its engine reconditioning and general engineering services, sharing the Australian precision manufacturing ecosystem.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Donnelly Engineering social profiles
Digital presenceDonnelly Engineering financial estimates
Financial estimateRevenue estimate
Valuation estimate
Donnelly Engineering leadership team
Management profileNumber of profiles
Donnelly Engineering funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Donnelly Engineering M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Donnelly Engineering
What does Donnelly Engineering do?
Donnelly Engineering is a mechanical engineering workshop that provides Engine Reconditioning, General Engineering, and Marine Engineering services from its Southport (Gold Coast, Queensland) facility, including precision machining, welding, boring, honing, pressure testing, crack testing, propeller shaft manufacture and straightening, heat exchanger cleaning, and custom fabrication. The company also manufactures and sells its proprietary Australian-made Donnelly Pressure Tester and supplies cylinder head kits, engine rebuild kits, and exchange cylinder heads (petrol and diesel). Service work is delivered via direct workshop service, on-site mobile visits, and free pickup and delivery in the Gold Coast area.
Is Donnelly Engineering a public or private company?
Donnelly Engineering is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Donnelly Engineering founded?
Donnelly Engineering was founded in 1992. It employs 11 to 50 people.
Where is Donnelly Engineering based?
Donnelly Engineering is headquartered in Southport, Australia, in the Oceania region.
How does Donnelly Engineering make money?
Three revenue lines are on record. Professional Engineering Services are the primary driver. The others are parts and Components Sales and exchange Engine and Cylinder Head Programs.
Who are Donnelly Engineering's main competitors?
Direct peers on record are Sutton Tools, Hard Chrome Engineering and Steber International. Engine Reconditioners Association of Australasia is listed as an others. Broad incumbents are Repco Engine Reconditioning Services, Burson Auto Parts and Hastings Deering. Regional players are Riviera Australia, Cox Automotive Australia and ANCA CNC Machines.
Does Donnelly Engineering have an API?
No public API is recorded for Donnelly Engineering.
What industry is Donnelly Engineering in?
Donnelly Engineering's product category is Mechanical Engineering Services. Its primary akta.pro industry code is IMAIACAD, Welding, Fabrication & Field Machining Services (On-site), with a secondary code of IMAHADAA, CNC Machine Tools (Turning, Milling, Machining Centers). Its NAICS code is 3332.