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Oil Field Services Companies in Glasgow: 50+ Active Firms (2026)
Oil field services companies provide drilling, well, pipeline and production support for upstream energy operators in and around Glasgow.
Procurement tends to sit with asset operations, wells, subsea, pipeline and decommissioning teams, with safety and commercial functions close to award decisions. Buyers are usually upstream operators and their main contractors, plus late-life asset owners managing maintenance-heavy portfolios. Engagements are usually project, call-off or framework-based rather than transactional, with mobilisation, certification and incident history carrying as much weight as price. The Glasgow angle matters because suppliers can cover North Sea-linked work while remaining close to engineering, inspection and operational support networks in the surrounding metropolitan area.
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Glasgow has 58 actively trading oil field services companies in this cohort. 7 have turnover above £5M, so the local market is weighted toward smaller service contractors rather than many revenue-scale operators. Reported employment totals 350 people, and 48 of 48 firms with published employee counts disclose headcount. That points to a compact supplier base: enough breadth to cover wells, pipeline and production support, but not a deep pool of larger standalone contractors.
Oil field services around Glasgow operate under operator-led procurement inside the UK upstream regime, rather than through a separate licence for service providers. The North Sea Transition Authority controls offshore petroleum licensing and consents, including exploration, development, wells, production consents, pipeline works authorisations, and flaring and venting permissions. Its remit also extends into offshore hydrogen transport by pipeline and storage. For service firms, contract exposure often follows the operator’s consent conditions, assurance requirements and emissions controls, especially where work affects wells, pipelines or late-life assets.
The Glasgow cohort appears to sit in a mature service market, with many firms oriented to maintenance, reliability and late-life offshore work rather than greenfield drilling cycles. Scale-up scarcity may persist: buyers tend to prize safety case familiarity, mobilisation capacity and audit trails, which can favour established subcontractor networks. Newer entrants are more likely to find room in emissions monitoring support, decommissioning-adjacent work and specialist pipeline services. Consolidation pressure has been visible across offshore services more broadly, and local firms may face sharper margin scrutiny where operators delay discretionary projects.
58
Active firms
2026
7
Above £5M
reported turnover
11
Since 2022
new incorporations
Key facts
About 12% of the trading cohort reports turnover above £5M (7 of 58 firms) — the rest sits below that revenue band.
18% of the cohort was incorporated since 2022 (11 firms), so a sizeable share is in its first few filing cycles.
Glasgow-area contractors tend to sell drilling, well, pipeline and production support into upstream projects rather than holding petroleum licences themselves.
The NSTA regulates UK offshore petroleum licensing and consents, including exploration, development, wells, production consents, pipeline works authorisations, and flaring and venting controls.
The NSTA's 2025 review links offshore operations to net zero obligations, a 50% production-emissions reduction target by 2030 against a 2018 baseline, and enforcement for flaring and venting consent exceedances.
OEUK said in 2024 that the offshore energy sector supported over 150,000 jobs directly or indirectly, with almost 80% of current offshore energy jobs in oil and gas.
NSTA estimates put proven and probable UK oil and gas reserves at 2.9 billion boe at end-2024, with 6.2 billion boe of contingent resources.
Top Glasgow oil field services companies
R.I.G. Fabrication Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides fabrication, repair and refurbishment of oilfield drilling equipment. Offers shop and field mechanical services, inspections, equipment unitisation, engineering and drafting, and supplies…
Serves oil and gas companies, drilling contractors and oilfield service firms operating land and offshore rigs, particularly buyers responsible for mechanical drilling equipment, mud pumps, parts and…
Financial Health
WeakWeak · -2% CAGR over 4y
Location
Hydropulsion Limited
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures downhole tools for oil and gas well intervention operations, including rotating washtools, circulating subs, gas separation systems, milling tools, nozzle inserts, and…
Sells to oil and gas operators, drilling teams, coiled tubing service providers and well intervention contractors needing downhole tools for wellbore operations.
Financial Health
StrongStrong · Hiring · 7% CAGR over 6y
Location
Provides oilfield services and equipment for exploration and production operations, including coring systems, drilling tools, well intervention services and well monitoring technologies. Also…
Serves B2B exploration and production operators, large oilfield service companies, and carbon capture well operators involved in drilling, completions, production, and well monitoring operations…
Location
PCS (SCOTLAND) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies pressure control equipment and spare parts for the oil and gas industry, including BOP components, gate, choke and check valves, accumulator bottles and high‑pressure equipment. Also…
Serves B2B customers in the oil, gas and oilfield services sectors worldwide, including offshore and subsea operators, rig and FPSO projects, and industrial buyers needing pressure control equipment,…
Financial Health
StrongStrong · Hiring · 3% CAGR over 4y
Location
Completion Products Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsDesigns and manufactures downhole cable and control line protectors used in oil and gas wells. Provides engineering design and consultancy for protective systems that secure cables and control lines…
Serves upstream oil and gas companies, including well completion teams, operators and service providers requiring downhole cable and control line protection for drilling and production environments.
Financial Health
HealthyHealthy · Growing, Hiring · 18% CAGR over 2y
Location
Weldspec (Baku) ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides non-destructive testing and heat treatment services for industrial and energy projects. Conducts weld inspection, ultrasonic, radiographic, magnetic particle, dye penetrant and eddy current…
Serves major oil and energy companies, EPC contractors and fabrication project operators with onshore and offshore assets across the UK, Europe and the Middle East.
Financial Health
StableStable · -16% CAGR over 3y
Location
RDH SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Weld-Spec (Glasgow) Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides non‑destructive testing (NDT) and heat treatment services for industrial fabrication and energy projects. Services include visual weld inspection, ultrasonic and phased array testing,…
Serves B2B clients in the oil, gas and major fabrication sectors, including main oil companies and contractors on onshore and offshore projects across the UK, Europe and the Middle East.
Financial Health
DistressedDistressed · -25% CAGR over 2y
Location
CORE LAB + LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides laboratory analysis, reservoir evaluation, and production optimisation services for the petroleum industry, including core and fluid analysis, completion diagnostics, inspection of crude oil…
Sells to B2B customers in the energy sector, especially oil and gas operators, engineers, geologists, geophysicists and completions teams. Also serves clients involved in CCS, crude oil and petroleum…
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
EMAC ENGINEERING LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides engineering and fabrication services including welding, pipe fabrication, sheet metal work, insulation and cladding, and mechanical services. Works with sectors such as oil and gas,…
Serves B2B industrial clients in the UK and internationally, particularly organisations in oil and gas, manufacturing, utilities, distilling and renewables sectors needing engineering project support.
Financial Health
StableStable · 2% CAGR over 4y
Location
Casinro Ltd
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Grant's Welding Services Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -16% CAGR over 4y
Location
TARIFA CONTROLS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides engineering services including design, manufacture and commissioning of electrical and electronic control panels, specialising in SCR drive systems. Also carries out system upgrades, repair,…
Serves B2B clients in oil and gas, automation, food and drink, pharmaceutical, and naval/marine sectors, including drilling contractors, platform/rig operators, distilleries and manufacturers.
Financial Health
StableStable · 0% CAGR over 4y
Location
NRN Glasgow Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 0% CAGR over 2y
Location
HEBRIDEAN MARINE SERVICES LTD
Trajectory
2y · 2025–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
DistressedDistressed · 0% CAGR over 1y
Location
Safewell Services Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
DistressedDistressed · 0% CAGR over 1y
Location
AH Asset Solutions Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides asset evaluation and disposal services for oil and gas companies, managing sales of surplus and end‑of‑life equipment through auctions and marketplace listings, including OCTG and industrial…
Serves major oil and gas producers disposing of surplus, end-of-life or redundant assets, and qualified buyers seeking used industry equipment through auctions and marketplace sales.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 3y
Location
Petrasco Energy
Provides logistics and freight forwarding services for the energy industry, including air, sea and road transport, offshore logistics, warehousing and distribution, project forwarding, export…
Serves B2B customers in the oil, gas and wider energy industry, including operators and suppliers needing urgent global logistics for vital components, materials and equipment, including offshore…
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -68% CAGR over 4y
Location
UMS Flowell UK Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and manufactures downhole completion equipment for oil and gas wells, particularly systems supporting electric submersible pumps (ESP). Supplies bypass tools, motor cooling and casing…
Serves oil and gas operators, oilfield service companies and well completion teams worldwide, particularly those managing electric submersible pump and natural-flow oil wells.
Financial Health
WeakWeak · Hiring · 13% CAGR over 2y
Location
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDesigns and supplies water treatment systems and energy recovery solutions for offshore oil and gas installations. Provides customised process packages covering seawater intake, treatment and…
Serves offshore oil and gas operators and project contractors, particularly fixed and floating installation owners needing process packages for seawater treatment, injection water and energy recovery.
Financial Health
StableStable · -67% CAGR over 3y
Location
UMS Flowell Holdings Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and manufactures downhole completion equipment for oil and gas wells, particularly electric submersible pump (ESP) systems, including bypass tools, motor cooling and casing isolation…
Serves B2B oilfield customers worldwide, including oil and gas operators, drilling/completions teams and service companies involved in electric submersible pump and natural-flow well projects.
Financial Health
StrongStrong · Hiring · 339% CAGR over 2y
Location
Integrity Engineering (Scotland) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides engineering manufacturing and technical services for the oil, gas and energy sectors, including CNC machining, welding and fabrication, valve and actuator supply and refurbishment, equipment…
Serves B2B customers in the oil, gas and energy sectors, including operators, subsea/riser equipment owners, and engineering, procurement and maintenance teams worldwide.
Financial Health
StableStable · -7% CAGR over 4y
Location
QUALITAS INTERNATIONAL LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides modular and prefabricated oil and gas production facilities and equipment for upstream petroleum projects, including turnkey plant design, equipment procurement, heavy‑lift cargo logistics,…
Serves B2B upstream oil and gas operators and energy project owners, particularly those developing petroleum reserves and remote international production assets in markets such as Gabon, Kazakhstan…
Financial Health
DistressedDistressed · -13% CAGR over 2y
Location
Insitu Threading Services Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides pipe threading services and manufactures and repairs threaded casings and tubulars. Designs and builds pipe‑threading machinery and related equipment, and offers machine tool servicing,…
Serves B2B industrial customers using threaded casings, pipes and tubulars, including pipe/tubular manufacturers, repair operations and operators needing specialist threading machinery, tooling and…
Financial Health
StrongStrong · Growing, Hiring · 33% CAGR over 3y
Location
EGCINSPECTION LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
Dargavel Contracts Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · Hiring · 19% CAGR over 4y
Location
McNair Engineering Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides engineering services including manufacture and repair of hydraulic equipment, hydraulic cylinders, rig skidding and BOP handling systems. Also designs and builds hydraulic power units and…
Serves industrial B2B customers, including offshore oil and gas operators, hydraulic equipment users, industrial gas turbine operators, engineering firms, and organisations needing subcontract…
Financial Health
StableStable · -10% CAGR over 4y
Location
IODS PIPE CLAD LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides metal fabrication services for the oil, gas and petrochemical industries, specialising in pipe cladding, induction bends, and non-destructive testing and inspection, and supplying clad line…
Sells to businesses in the global oil, gas and petrochemical sectors, including pipeline operators, EPC contractors and industrial buyers needing clad pipe, bends, elbows, fittings and inspection…
Financial Health
WeakWeak · -74% CAGR over 4y
Location
Oil and Gas Engineering Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
JHal Engineering Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
TEESSIDE FLUID SYSTEM TECHNOLOGIES LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsSupplies fluid system components including fittings, valves, regulators, and tubing, and provides engineering services such as system evaluation, design, fabrication, installation, asset integrity…
Serves B2B industrial customers needing fluid system components, engineering support and training, particularly in chemical/petrochemical, oil and gas, semiconductor, clean energy and defence sectors…
Financial Health
StableStable
Location
Reekie Machine (Sales) Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides in‑situ and onsite machining services for industrial equipment, including flange facing, milling, drilling, line boring and pipe cutting. Operates a CNC machine shop producing machined…
Serves industrial B2B clients in power generation, oil and gas, naval refit, renewables, petrochemical and process industries, heavy fabrication, shipbuilding and repair, aerospace, mining and heavy…
Financial Health
StableStable · 0% CAGR over 2y
Location
MTW Project Services Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
Kessington Engineering Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · Hiring · 19% CAGR over 4y
Location
NANO LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
WeakWeak
Location
Gut4 Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
WeakWeak · 0% CAGR over 1y
Location
GCH Precision Engineering Ltd.
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides precision engineering and bespoke manufacturing services including machining, heavy vertical and horizontal boring, repair and rework, machine tool maintenance, and breakdown support.…
Serves B2B industrial customers, particularly blue-chip and OEM oil and gas companies, plus firms with heavy manufacturing, tubular/casing, machine-tool and plant maintenance requirements.
Financial Health
HealthyHealthy · -21% CAGR over 2y
Location
Absafe Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
L.S.E.H PROJECTS LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
WeakWeak · 0% CAGR over 1y
Location
Rabwal Ltd.
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed · 0% CAGR over 2y
Location
Georgiatech Offshore Inspection Ltd
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong
Location
LIGHTFAB LTD
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 0% CAGR over 2y
Location
Offshore Services Ltd
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StableStable · 0% CAGR over 3y
Location
GNG Inspection Services Limited
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
JERWIN COATINGS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides industrial surface preparation and coating services including sandblasting, shot blasting, grit blasting, chemical cleaning, and industrial painting. Also offers protective coatings, thermal…
Serves B2B industrial and public-sector customers, including heavy engineering firms, oil and gas operators, construction and infrastructure contractors, rail networks, transport departments and…
Financial Health
StableStable · -1% CAGR over 4y
Location
Northern Marine
Provides ship management and marine support services for maritime and offshore operators, including technical and crew management for gas, oil, chemical, passenger and offshore vessels, plus…
Serves B2B maritime and offshore clients, including leading ship owners, energy majors, vessel operators and shipping-group companies with gas, oil and chemical, offshore and passenger fleets.
Location
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How Glasgow oil field services companies work and how to sell to them
What they do
Glasgow oil field services firms usually earn revenue through project work, framework call-offs and recurring maintenance support rather than subscription or transaction models. The service shape is practical: crews, certified equipment, inspection capability, engineering support, well intervention, pipeline work, production maintenance and decommissioning-adjacent activity. Pricing tends to combine mobilisation charges, day rates, equipment hire, reimbursable costs and milestone-based fees. Smaller jobs may be scoped as discrete inspection or repair packages, while larger engagements sit inside multi-supplier frameworks where uptime, safety history and certification determine whether the firm is called off again.
Who they sell to
Most sell to upstream operators, late-life asset owners and main contractors, with buying groups drawn from asset operations, wells, subsea, pipeline, decommissioning, HSE, commercial and procurement teams. Contract value is usually tied to mobilisation complexity, offshore access and specialist certification rather than user count. Sales cycles tend to be slow before a supplier is approved, because prequalification, insurance, safety cases and audit trails matter. Once on a framework, repeat work can move through call-off orders, supplier portals or direct instructions from operational teams facing a scheduled shutdown or fault.
What they buy
Most Glasgow suppliers tend to spend on tools and services that help them win work, mobilise crews and pass operator assurance. That can include CRM and bid management, job costing, workforce scheduling, certification tracking, training records, incident reporting, quality management, document control, asset maintenance systems and cyber security. Field-facing firms also buy recruitment support, payroll, insurance broking, legal advice for framework terms, HSE consultancy, calibration services, cloud hosting and finance systems. Environmental reporting and emissions evidence are becoming more relevant where work touches production operations, flaring and venting controls, pipeline integrity or late-life asset planning.
Why and how to sell to them
Buying intent often appears when firms win a new framework, add field staff, move into decommissioning-related work, replace manual certification processes or face tougher operator audits. Margin pressure also creates interest in better utilisation, fewer mobilisation delays and clearer job profitability. Sellers tend to get further when they connect the pitch to operational evidence: faster tender responses, cleaner HSE records, traceable equipment certification, simpler crew planning or clearer reporting against North Sea Transition Authority-linked requirements. Generic cost-saving messages are less useful than proof that the seller understands call-off work, offshore assurance and the consequences of a failed mobilisation.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
Sources
- Economy & People Report 2024
- Capital investment in offshore energy could rise by over 50%, from £13 billion last year to more than £20 billion by the early 2030s.
- Offshore energy sector employment is estimated to increase by nearly 50% to 225,000 jobs by 2030.
- The offshore energy sector currently supports over 150,000 jobs directly or indirectly.
- Almost 80% of current offshore energy sector jobs are in oil and gas.
- The oil and gas industry contributes approximately £25 billion to the UK economy and has paid £450 billion in production taxes over the past 50 years.
- Reserves and Resources as at end 2024
- Proven and probable UK oil and gas reserves were estimated at 2.9billion boe at the end of 2024.
- UK contingent resources stood at 6.2 billion boe at the end of 2024.
- UK prospective resources were estimated at 4.6 billion boe at the end of 2024.
- Prospective resources were up by 31% from the end of 2023.
- A total of 47.7 billion boe of oil and gas had been produced from the UKCS by the end of 2024.
- Record-high gas production in 2024
- Norway sold 124 billion standard cubic metres (Sm3) of gas in 2024.
- Norway sold 122.8 billion Sm3 of gas in 2022, for comparison with 2024's 124 billion Sm3.
- Overall Norwegian continental shelf production reached about 240 million standard cubic metres of oil equivalent in 2024.
- The 2024 production total was stated as 1510 million barrels of oil equivalent.
- Norway's 2024 overall production was the highest level since 2009.
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