These are large and mid-sized companies in Aberdeen, primarily in the energy sector, with a strong emphasis on oil and gas, as well as related professional and engineering services. Companies like Wood, a global consulting and engineering firm, and EnerMech, a provider of integrated mechanical and electrical solutions, illustrate this focus. Other significant players include First Bus and FirstGroup plc in ground passenger transportation, and Johnston Carmichael Chartered Accountants, an independent financial advisory firm. Most of these companies are well-established, with many founded before 2000.
The data shows a clear concentration of companies involved in supporting the oil and gas industry. For instance, Stena Drilling specializes in drilling contracting, Sparrows Group provides lifting and handling solutions, and EnQuest is an independent oil and gas producer. Proserv focuses on energy technology solutions, while Dolphin Drilling is a harsh environment drilling contractor. This indicates Aberdeen's role as a hub for both direct energy extraction and the extensive supply chain that supports it.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Woodwoodgroup.com
A global consulting and engineering firm specializing in energy and materials markets, offering solutions in 60 countries and employing 35,000 people |
34,666 | |||
| 2 |
EnerMechenermech.com
Global provider of integrated mechanical, electrical, instrumentation, and integrity solutions for energy and infrastructure sectors, delivering world-class services across full asset lifecycle worldwide |
2,882 | |||
| 3 |
First Busfirstbus.co.uk
One of the UK鈥檚 largest bus operators, leading the transition to a low-carbon future with innovative technologies and a commitment to zero-emission buses |
2,648 | |||
| 4 |
FirstGroup plcfirstgroupplc.com
Leading UK bus and rail operator providing essential public transport services across major cities and regions, connecting communities daily. |
1,917 | |||
| 5 |
Stena Drillingstena-drilling.com
Global independent drilling contractor with a fleet of well-maintained drillships and semi-submersible rigs, known for innovation, safety, and operational excellence |
1,677 | |||
| 6 |
Sparrows Groupaltradsparrows.com
Global provider of specialist lifting, mechanical handling, cable laying, and fluid power solutions for energy and industrial sectors worldwide. |
1,335 | |||
| 7 |
Proservproserv.com
Specializing in energy technology solutions, our company offers innovative, flexible, and environmentally-friendly controls, monitoring, intelligence, and optimization services for the energy sector |
1,305 | |||
| 8 |
EnQuestenquest.com
An independent oil and gas company focused on developing and producing oil fields, with a strong presence in the UK North Sea and other basins |
887 | |||
| 9 |
Johnston Carmichael Chartered Accountants and Business Advisersjohnstoncarmichael.com
Scotland's largest independent firm of chartered accountants and business advisers, part of the international network Moore Global, offering a wide range of financial services |
855 | |||
| 10 |
Dolphin Drillingdolphindrilling.com
A leading harsh environment drilling contractor, partnering to lower costs, increase uptime, and deliver wells efficiently and effectively in the offshore oil and gas industry |
810 | |||
| 11 |
UTECacteon.com
Provides comprehensive marine environment data and insights to optimize project designs, save time, and maximize economic value throughout asset life. |
764 | |||
| 12 |
PD&MS Grouppdms-group.com
An EPCC with expertise in design, engineering, carbon management, inspection, and consultancy for onshore and offshore energy projects internationally |
714 | |||
| 13 |
CAN Groupcangroup.net
Global provider of asset integrity services for the energy industry, specializing in engineering, inspection, QA/QC, maintenance, and integrity management Focus on safety, integrity, and commitment |
703 | |||
| 14 |
Altrad Sparrowsaltradsparrows.com
Global provider of specialist equipment and engineering services to energy and industrial sectors Offers tailored solutions for lifting, handling, cable laying, and fluid power needs worldwide |
662 | |||
| 15 |
Xodusxodusgroup.com
Provides expert advice and innovative solutions to drive change and share knowledge within the global energy industry. |
629 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Boskalis Subsea Servicesboskalis.com
Specializing in subsea solutions for the offshore energy industry, offering integrated services such as project management, engineering, construction, inspection, and maintenance |
579 | |||
| 17 |
THREE60 ENERGYthree60energy.com
A prominent energy services group providing asset management, engineering technology, and energy transition solutions across various industries worldwide |
576 | |||
| 18 |
Altrad Integrity Servicesuk.altradservices.com
Offering comprehensive asset lifecycle solutions in the energy and industrial sectors, including construction, maintenance, operations, and decommissioning, with a focus on maximizing efficiency |
526 | |||
| 19 |
SES Energyswirees.com
Global energy industry support provider offering offshore containers and services, wind services, aviation services, and smart connected solutions with a focus on customer ease |
516 | |||
| 20 |
Spirit Energyspirit-energy.com
Energy company focusing on safe gas production, asset maximization, decommissioning, and exploring strategic opportunities in energy transition. |
495 | |||
| 21 |
Dana Petroleum Limiteddana-petroleum.com
An international oil and gas company with exploration and production operations in the UK, Egypt, and The Netherlands, headquartered in Aberdeen |
454 | |||
| 22 |
ICRicr-world.com
Global provider of maintenance, integrity, and inspection solutions for various industries, with a focus on transitioning to a low carbon economy and supporting ESG initiatives |
440 | |||
| 23 |
BENTECbentec.com
A subsidiary of the KCA Deutag Group, Bentec designs and manufactures drilling rigs, equipment, and top drives for various environments worldwide |
429 | |||
| 24 |
Arjowigginsarjowiggins.com
produces creative and technical papers, including creative packaging, bookbinding, translucent, smart, and security papers for worldwide distribution. |
383 | |||
| 25 |
prosource.itprosource.it
Managed IT services provider specializing in infrastructure, operational, and project requirements for corporate enterprises globally, with expertise in various industries and locations |
382 | |||
| 26 |
RWG (Repair & Overhauls)rwgroup.com
Global leader in maintenance, repair, and overhaul of industrial gas generators and power turbines, backed by Siemens expertise and 25 years experience |
378 | |||
| 27 | 349 | ||||
| 28 |
Centurion Groupcenturiongroup.co.uk
A global leader in rental, infrastructure, and support services for critical industries, offering modular solutions, drilling support, and infrastructure services worldwide |
335 | |||
| 29 |
activpayrollactivpayroll.com
Global payroll, international payments, global mobility, and HR services ensuring compliant and timely payment worldwide, supported by tech and tax specialists |
316 | |||
| 30 |
Petrofac Training Servicespetrofac.com
A company specializing in designing, delivering, and assuring training solutions for the oil and gas industry, with a focus on workforce competence and emergency response |
315 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
More company lists in Aberdeen
- The largest companies in Aberdeen 139
- Oil and Gas companies in Aberdeen 37
- Energy companies in Aberdeen 27
The same list elsewhere in United Kingdom
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- Multinational companies in Northern Ireland 84
- Multinational companies in Wales 69
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