The companies listed here are primarily large and mid-sized firms in the oil and gas sector based in Aberdeen. They include independent drilling contractors like Stena Drilling and Dolphin Drilling, as well as oil and gas operators such as EnQuest and Ithaca Energy. Other significant players include Sparrows Group, which provides specialist lifting and mechanical handling solutions, and Proserv, specializing in energy technology.
A notable characteristic of these companies is their focus on the energy industry, with a strong emphasis on oil and gas exploration, production, and related services. Many of these firms also highlight their involvement in energy transition solutions, reflecting a broader industry trend. The companies were founded across a wide timeframe, from North Star in 1886 to NEO NEXT+ Energy in 2025, indicating both long-established presence and newer ventures.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 |
North Starnorth-star.co.uk
A company focused on employee safety and care, dedicated to delivering high-quality services through teamwork and collaboration |
1,416 | |||
| 3 |
Sparrows Groupaltradsparrows.com
Global provider of specialist lifting, mechanical handling, cable laying, and fluid power solutions for energy and industrial sectors worldwide. |
1,335 | |||
| 4 |
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 | |||
| 5 |
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 | |||
| 6 |
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 | |||
| 7 |
Ithaca Energyithacaenergy.com
A leading oil and gas operator in the UK, committed to meeting energy needs sustainably while maximizing value through responsible production |
781 | |||
| 8 |
UTECacteon.com
Provides comprehensive marine environment data and insights to optimize project designs, save time, and maximize economic value throughout asset life. |
764 | |||
| 9 |
NEO NEXT+ Energyneweuropeanoffshore.com
Independent North Sea operator focusing on value creation with high ESG standards, sustainable assets, organic production growth, asset life extensions, and acquisitions |
713 | |||
| 10 |
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 | |||
| 11 |
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 | |||
| 12 |
THREE60 ENERGYthree60energy.com
A prominent energy services group providing asset management, engineering technology, and energy transition solutions across various industries worldwide |
576 | |||
| 13 |
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 | |||
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. | |||||
| 14 |
Spirit Energyspirit-energy.com
Energy company focusing on safe gas production, asset maximization, decommissioning, and exploring strategic opportunities in energy transition. |
495 | |||
| 15 |
Hydrasunhydrasun.com
A market leader in fluid transfer, power & control solutions, supporting customer decarbonisation and energy transition with innovative engineering and technology |
456 | |||
| 16 |
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 | |||
| 17 |
BENTECbentec.com
A subsidiary of the KCA Deutag Group, Bentec designs and manufactures drilling rigs, equipment, and top drives for various environments worldwide |
429 | |||
| 18 |
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 | |||
| 19 | 349 | ||||
| 20 |
Balmoral Comtecbalmoraloffshore.com
A leading specialist in mechanical and polymer engineering, offering innovative solutions for offshore oil and gas, renewables, oceanographic, and defense sectors |
337 | |||
| 21 |
Glacier Energyglacierenergy.com
Specialist provider of products, services, and solutions for both renewable and conventional energy markets, optimizing assets for peak performance |
215 | |||
| 22 |
Coretrax, an Expro companyexpro.com
A global innovation leader improving production performance and delivering well intervention efficiencies with boundary-pushing well lifecycle solutions #ExpandTheLimits |
209 | |||
| 23 |
Petrex Energy Services Limitedpetrex.co.uk
Provides innovative engineering solutions for the energy sector by offering design, field development services, and experienced in-house resources for project delivery |
85 | |||
| 24 |
Centurion - UK & Europe Regioncenturionukrs.com
Provider of efficient and safety-driven rentals, sales, and services for critical industries worldwide, offering tailored packages through diverse capabilities and expertise |
76 | |||
| 25 |
Kellas Midstreamkellasmidstream.com
An independent energy infrastructure company developing and operating key assets to support UK energy security and transition to net zero |
48 | |||
| 26 |
NMC Energynmcenergy.com
A rapidly growing energy company with experienced experts delivering customized solutions, building strong relationships with customers to achieve maximum efficiency |
44 | |||
| 27 |
Trojan Energytrojan.energy
Develops flat, flush electric vehicle charging systems for urban streetscapes, providing driveway-style home charging access for city dwellers without cluttering public pavements. |
28 | |||
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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.
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