Ajt Engineering
AJT Engineering is an Aberdeen-based specialist engineering services provider delivering precision machining, welding, fabrication, and site services to the energy sector across oil & gas, hydro, wind, hydrogen, water, and marine mooring applications.
- Company typePrivate
- Founded1984
- HeadquartersAberdeen, United Kingdom
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Ajt Engineering does
AJT Engineering Limited is a specialist engineering services provider headquartered in Aberdeen, Scotland, operating across three integrated divisions: the Energy Engineering Division (precision CNC machining up to 3000mm diameter, specialized welding including GTAW hot wire cladding, API threading, assembly and pressure testing up to 22,500psi, and preservation / preventative maintenance), the Energy Site Services Division (hydro power turnkey solutions, mechanical overhaul, and project and design management), and the Energy Fabrication Division (structural steelwork, pressure vessels, tank and pipework manufacture, and bespoke assemblies). The company also develops and commercializes two proprietary products: the C-Dart Mooring Buoy, an automated contact-free offshore mooring system developed with Blackfish Engineering and holding Bureau Veritas Approval In Principal (BV-NR493), and the Downhole Magnet, a one-size-fits-all debris removal tool developed with Clydeside and scheduled for Canadian wellsite testing in January 2026.
The firm serves enterprise customers across oil & gas, hydro, wind, hydrogen, water, and marine mooring segments, with named clients including SSE Renewables (Rannoch Power Station), international oil & gas operators, a Spanish drilling contractor, a leading riser manufacturer, and various hydro utilities (Loyne Dam, Glenlee Power Station). Pricing is quote-based with project-specific quotations rather than published rates, and engagements are typically won through competitive tendering and structured as multi-year contracts or turnkey project deliverables. Distribution is exclusively direct enterprise sales via dedicated contact channels and industry event presence (e.g., Scotland Week 2026 in Abu Dhabi).
The company is wholly owned by Camellia Plc (LSE: CAM), a diversified conglomerate group, and operates from a 5-acre site in Aberdeen (West Tullos and Altens Industrial Estates) with 70,000 sq ft of workshop floor area, 12 overhead cranes with up to 30Te single-lift capacity, and an additional hot desk facility in Abu Dhabi. Headcount is 101-250 employees including active apprenticeship and graduate programmes. The firm maintains an extensive compliance and certification stack: ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO 3834-2, EN 1090-1, PED, API Spec Q1, API monograms 7-1 and 7-2, UVDB Silver Plus, CHAS Elite, NS-1/NS-2, Cyber Essentials, and Fit 4 Offshore Renewables (F4OR) status achieved in March 2025.
Ajt Engineering firmographics
Firmographics- Name
- Ajt Engineering
- Legal name
- AJT Engineering Limited
- Website
- https://ajt-engineering.co.uk
- Company type
- Private
- Founded year
- 1984
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- AJT Engineering is an Aberdeen-based specialist engineering services provider delivering precision machining, welding, fabrication, and site services to the energy sector across oil & gas, hydro, wind, hydrogen, water, and marine mooring applications.
- Ownership category
- akta.pro rank
Ajt Engineering industry classification
Industry- Product category
- Engineering Services for Energy Sector
- NAICS
- Engineering Services (54133), Engineering Services (541330), Architectural, Engineering, and Related Services (5413)
- SIC
- Services-Engineering Services (8711), Oil & Gas Field Machinery & Equipment (3533), Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- Energy Systems & Power Engineering Consulting (BPAHAIAG)
- akta.pro secondary industries
- Asset Management & Owner’s Engineering (Lifecycle Strategy, Budgeting, Technical Due Diligence) (EUAMAGAJ), Oil & Gas Midstream & Pipeline O&M (Pipelines, Compressor Stations) (EUAEAGAF)
Keywords
Where Ajt Engineering is headquartered
LocationHeadquarters
- HQ city
- Aberdeen
- HQ country
- United Kingdom
- HQ region
- Europe
Offices4 records
Markets served
Ajt Engineering business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Engineering Services: Providing specialized engineering services including precision machining, API threading, specialized welding, assembly, testing, and preservation/preventative maintenance for pressure control equipment in oil & gas and energy sectors. Services are project-based and typically contracted through competitive tendering for major infrastructure projects.
- Fabrication Services: Custom fabrication of structural steelwork, pressure vessels, tank manufacture, pipework systems, and bespoke assemblies for energy sector clients. Fabricated products include gates, screens, valves, and specialized components for hydro and industrial applications.
- Site Services: On-site engineering, mechanical overhaul, and maintenance services delivered through the Site Services Division. Services include project management, design management, hydro power support, and mechanical refurbishment for energy infrastructure.
- C-Dart Product Sales: Sale of the proprietary C-Dart mooring buoy system developed in collaboration with Blackfish Engineering. The product offers rapid, reliable, low-risk mooring for floating marine assets across offshore wind, aquaculture, and marine sectors.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom project-based pricing |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
Ajt Engineering product offering
Product offeringCore offering
AJT Engineering provides specialist engineering services to the energy sector through three integrated divisions: the Energy Engineering Division (precision CNC machining, API threading, specialised welding, preservation and preventative maintenance, assembly and testing), the Energy Site Services Division (hydro power turnkey solutions, mechanical overhaul, and project and design management), and the Energy Fabrication Division (structural steelwork, pressure vessels, tanks, pipework, and bespoke assemblies). The company also develops and sells proprietary products including the C-Dart offshore mooring buoy system, developed in collaboration with Blackfish Engineering with Bureau Veritas certification.
Product overview
AJT Engineering is a specialist engineering services provider with over 40 years of experience, operating three divisions: the Energy Engineering Division (precision machining, API threading, specialised welding, preservation and preventative maintenance, and assembly and testing), the Energy Site Services Division (hydro power turnkey solutions, mechanical overhaul, and project and design management), and the Energy Fabrication Division (structural steelwork, pressure vessels, tank manufacture, pipework, and bespoke assemblies). The company also develops proprietary products including the C-Dart Mooring Buoy and Downhole Magnet tool, both created through external collaborations. The company is backed by multiple ISO, API, and industry certifications.
Differentiator
Problem solved
Functional benefit
Brands
- C-Dart: Innovative mooring buoy system developed in collaboration with Blackfish Engineering for rapid, reliable, and low-risk offshore mooring solutions.
- Downhole Magnet
Products and services
- C-Dart Mooring Buoy A proprietary mooring buoy system engineered for rapid deployment, reliable performance, and low operational risk in offshore mooring applications. Developed in collaboration with Blackfish Engineering, it features a mechanical latch connection using gravity, buoyancy, and rope tension, enabling contact-free, automated moorings without direct rope or shackle handling. Scalable for mooring loads up to hundreds of tonnes, suitable for offshore oil and gas, marine, port, renewable, aquaculture, and coastal infrastructure.
- Downhole Magnet A downhole debris removal tool developed in collaboration with Clydeside, offering a one-size-fits-all solution for clearing debris from wellbores. Under development with testing scheduled in Canada as of early 2026.
- Energy Engineering Division Services Division providing precision machining, API threading, specialised welding, preservation and preventative maintenance, and assembly and testing services for oil & gas and energy sector clients. Backed by over 76 years of combined industry experience and ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications. Operates from 32,000 sq ft machine shop and dedicated pressure test bays.
- Energy Site Services Division Division offering hydro power turnkey solutions, mechanical overhaul, and project and design management services for hydro generation, utilities, and renewable energy clients. Acts as Principal Contractor under CDM 2015 with capability to deliver full turnkey services from design through to commissioning.
- Energy Fabrication Division Division providing custom-built fabrication solutions including structural steelwork, pressure vessels, tank manufacture, pipework systems, and bespoke assemblies and testing. Operates from a purpose-built facility with up to 30-tonne overhead craneage and welding procedures qualified to ASME, AWS, EN, and ISO standards.
Quantifiable outcome
- 50% of business already delivers site services into renewable hydro electric schemes and onshore wind, demonstrating successful diversification strategy
- +4 more outcomes
Companies that use Ajt Engineering
Customer profileNamed customers6 records
Segments6 records
Ideal customer profiles3 records
Ajt Engineering technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Ajt Engineering partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core, preferred, minor and flagship.
- ClydesidecoreCollaboration on Downhole Tooling development. Testing scheduled in Canada for January 2026. The partnership brought the technology through all TRL stages in 6 months, demonstrating rapid development capability. If successful, the product will be ready for market launch.
- VAG GrouppreferredTrusted valve partner supplying ASCV butterfly valves for projects including Rannoch Power Station installation. AJT sources valves from VAG Group as part of turnkey hydro infrastructure solutions.
- Blackfish Engineering LimitedcoreStrategic collaboration for development and commercialization of the C-Dart mooring system. Blackfish conceived the innovative concept and AJT provides expertise in precision engineering, manufacturing, fabrication, and site services. Together they are bringing this groundbreaking advancement in offshore mooring technology to market. C-Dart received Approval In Principal certification from Bureau Veritas through this partnership.
- Fort William Underwater CentreminorWorld's most advanced subsea testing facility used for C-Dart testing and validation. Multiple tests conducted using different configurations to validate the mooring system's performance.
- Wave Energy Scotland (WES)flagshipC-Dart concept was developed through WES Quick Connection Systems (QCS) programme, a competitive 3-stage Pre-Commercial Procurement approach with full project funding. Progression through the programme allowed Blackfish to address risks and bring forward a highly developed prototype. Follow-on projects allowed pull testing and initial certification steps.
- Rittmeyer GroupcoreUK distributor for Rittmeyer products including level and flow measurement, position measurement, and pipeline rupture monitoring systems. Site Services team has been in partnership with Rittmeyer for over a decade. Collaboration includes integration of Rittmeyer products into hydro power station projects.
- RotorkpreferredSupplier of IQ35 actuators installed on butterfly valves at Glenlee Power Station. AJT specifies Rotork actuators for valve automation projects.
- Scottish EnterprisecoreCollaboration through Hydrogen Expert Support Programme and participation in Scotland Week 2026. Scottish Enterprise provides support for international expansion and innovation development.
Scale indicators9 records
Recent moves6 records
Expansion highlights6 records
Ajt Engineering competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key highlights7 records
Customer concentration
Ajt Engineering social profiles
Digital presenceAjt Engineering compliance and trust
Trust signalCompliance15 records
Ajt Engineering financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ajt Engineering leadership team
Management profileNumber of profiles
Profiles10 records
Ajt Engineering funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ajt 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 Ajt Engineering
What does Ajt Engineering do?
AJT Engineering provides specialist engineering services to the energy sector through three integrated divisions: the Energy Engineering Division (precision CNC machining, API threading, specialised welding, preservation and preventative maintenance, assembly and testing), the Energy Site Services Division (hydro power turnkey solutions, mechanical overhaul, and project and design management), and the Energy Fabrication Division (structural steelwork, pressure vessels, tanks, pipework, and bespoke assemblies). The company also develops and sells proprietary products including the C-Dart offshore mooring buoy system, developed in collaboration with Blackfish Engineering with Bureau Veritas certification.
Is Ajt Engineering a public or private company?
Ajt Engineering is a private company. It is classified as corporate owned and is currently operating.
When was Ajt Engineering founded?
Ajt Engineering was founded in 1984. It employs 101 to 250 people.
Where is Ajt Engineering based?
Ajt Engineering is headquartered in Aberdeen, United Kingdom, in the Europe region.
How does Ajt Engineering make money?
Four revenue lines are on record. Engineering Services are the primary driver. The others are fabrication Services, site Services and C-Dart Product Sales.
Does Ajt Engineering have an API?
No public API is recorded for Ajt Engineering.
What industry is Ajt Engineering in?
Ajt Engineering's product category is Engineering Services for Energy Sector. Its primary akta.pro industry code is BPAHAIAG, Energy Systems & Power Engineering Consulting, with a secondary code of EUAMAGAJ, Asset Management & Owner’s Engineering (Lifecycle Strategy, Budgeting, Technical Due Diligence). Its NAICS code is 54133 and its SIC code is 8711.