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Oil and Gas Companies in Manchester: 93 Active Firms (2026)
Oil and gas companies in Manchester supply, engineer and service upstream and downstream energy operations across the metropolitan area.
Buying centres sit with engineering, operations, procurement and commercial teams rather than consumer channels. The more relevant buyers are mid-market and enterprise energy producers, infrastructure owners, industrial customers and specialist contractors that need technical services, equipment, project delivery, maintenance, logistics or commercial support. Sales cycles therefore tend to be tender-led and assurance-heavy, with decisions shaped by uptime, site access, insurance, safety documentation and supplier qualification. Typical engagements look more like infrastructure or industrial-service contracts than low-touch software subscriptions: higher-value, business-to-business, and often tied to a particular asset, project or production chain across Greater Manchester and the wider UK supply base.
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Manchester has 93 actively trading oil and gas firms, making this a compact local cohort rather than a broad national supply-chain sample. Among firms reporting employment, headcount totals 862 people, which points to a market weighted towards lean operating units and service businesses rather than uniformly large employers. The commercial centre of gravity sits in business-to-business supply, engineering support and project delivery for producers, infrastructure owners, industrial customers and contractors across Greater Manchester and wider UK supply chains. The 12 firms above £5M turnover give researchers a small revenue-ranked subset to examine before moving into earlier-stage or asset-light entities, including 22 firms incorporated since 2022.
Manchester firms sit in a supplier-heavy part of the oil and gas chain, so regulatory exposure tends to arrive through customer procurement as much as direct licensing. Engineering, logistics, maintenance and commercial-support providers are usually pulled into health, safety, environmental, quality and audit requirements set by producers, infrastructure owners and industrial customers. Asset-holding or distribution-related entities face a more formal permitting burden, while service contractors often feel regulation through tender pre-qualification, insurance cover, site access rules and documentation standards. That market structure favours suppliers able to evidence compliance without building the overheads of a full operator.
Scale-up scarcity appears more important than new demand creation in this Manchester market. A small revenue-ranked group can keep winning work from established energy customers, while the longer tail of contractors, asset vehicles and technical service providers tends to move with maintenance cycles, infrastructure budgets and procurement appetite. Smaller suppliers may narrow into specialist tasks or partner with larger delivery groups where insurance, site access and compliance evidence become harder to carry alone. Consolidation is plausible where service overlap is high, but the cohort still looks more like a practical supply-chain market than a venture-style software or consumer-growth story.
93
Active firms
2026
12
Above £5M
Reported turnover
22
Since 2022
Recent incorporations
Key facts
About 12% of the trading cohort reports turnover above £5M (12 of 93 firms) — the rest sits below that revenue band.
23% of the cohort was incorporated since 2022 (22 firms), so a sizeable share is in its first few filing cycles.
Manchester oil and gas suppliers sit mainly in contractor, equipment, project-support and trading roles between energy producers, industrial users and infrastructure operators.
The sector spans upstream and downstream activity, so procurement tends to cover engineering support, site services, equipment supply and operational maintenance.
Sales cycles in this market are usually shaped by project timetables, safety requirements and framework-style purchasing rather than high-volume transactional demand.
Top Manchester oil and gas companies
SIMON CARVES ENGINEERING LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides engineering consultancy, design and project delivery for petrochemical and polymer process plants. Offers high‑pressure polyethylene technology licensing, plant development, optimisation and…
Serves B2B clients in global polymer, petrochemical, chemical and advanced recycling sectors, including process plant owners/operators, high-pressure polyethylene producers, strategic industrial…
Financial Health
DistressedDistressed · -63% CAGR over 4y
Location
Acquires, develops and operates oil and gas production assets. Focuses on managing and optimising offshore fields, progressing field development projects, and handling associated asset management and…
Location
NORFOLK ENGINEERING DESIGN LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides asset management, engineering, and operations support services for oil and gas infrastructure. Works on offshore and onshore energy assets including pipelines, gas terminals, and production…
Serves B2B energy-sector clients operating in the UK Continental Shelf, especially oil and gas asset owners/operators and teams responsible for offshore platforms, pipelines, terminals and FPSO…
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
Rawwater Engineering Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides microbiological oilfield reservoir souring forecasting, modelling and high‑pressure simulation studies for energy companies, plus consultancy and workshops. Also develops and applies molten…
Serves B2B customers including oil and gas operators, oilfield service companies and chemical suppliers worldwide, plus industrial organisations in power transmission, nuclear decommissioning, civil…
Financial Health
StableStable · -78% CAGR over 3y
Location
Rawwater Engineering Company Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides microbiological oilfield reservoir souring forecasting, modelling and high‑pressure simulation studies for energy companies, supporting treatment strategy planning and microbial mitigation.…
Serves B2B industrial clients, including oil and gas operators, service companies, chemical suppliers, electricity transmission firms, nuclear decommissioning organisations and pipeline or civil…
Financial Health
StableStable · -85% CAGR over 3y
Location
POWER MECHANICAL AUTOMATION LTD
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsSupplies valve automation equipment, actuators, control systems and related spares for industrial applications. Provides assembly, installation, commissioning and maintenance services, and…
Serves industrial operators and engineering contractors in the oil and gas, power, petrochemical, water, offshore, processing and chemical sectors.
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 2y
Location
IACS TRAINING AND EDUCATION (MANCHESTER) LTD
Trajectory
1y · 2024–NowProvides non-destructive testing (NDT), inspection and consultancy services for oil, gas, petrochemical and energy projects. Offers quality assurance, vendor inspection, welding inspection,…
Serves B2B clients in the oil, gas, petrochemical, renewable energy, utilities and construction sectors, including major utility companies, asset operators, project owners, contractors and vendor…
Financial Health
Insufficient historyInsufficient history
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed · -90% CAGR over 2y
Location
EPI Group
Provides geoscience, environmental and technical consulting services for offshore energy and marine infrastructure projects, including geological assessments, geophysical surveys, environmental…
Serves major developers, governments and private clients worldwide in offshore renewable energy, oil and gas, carbon capture, marine infrastructure and capital projects sectors.
Location
BEINIT ENERGY LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable
Location
PREMIUM SUPPLY LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides investment and asset management services for oil and gas production assets, alongside AI-enabled software and optimisation technologies used to monitor wells, improve production yields,…
Serves oil and gas asset owners, operators and investors involved in well production and energy asset management.
Financial Health
HealthyHealthy · 4% CAGR over 2y
Location
F W Marsh Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides electrical and mechanical engineering services including installation, commissioning, maintenance and repair for power generation, commercial and industrial systems. Offers gas turbine…
Serves public-sector bodies, utilities, oil and gas operators, aviation and industrial firms, major retailers and commercial businesses, plus domestic customers needing heating, plumbing or…
Financial Health
StableStable · -78% CAGR over 3y
Location
Provides geoscience, environmental and survey services for offshore energy and marine infrastructure projects, including geological and geophysical assessments, environmental compliance support, and…
Serves major developers, governments and private clients in offshore energy markets, including renewable energy, oil and gas, carbon capture, and marine infrastructure projects worldwide.
Location
ROTIDEB COMPANY LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StableStable · 0% CAGR over 1y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides oil and gas drilling services, operating land and offshore drilling rigs and fleets. Develops drilling automation technologies, well engineering, survey management, and real-time operations…
Serves oil and gas exploration and production companies, including energy operators developing land and offshore wells worldwide, and teams responsible for drilling performance, rig operations and…
Financial Health
StableStable · -65% CAGR over 4y
Location
Westgarth Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and builds offshore water treatment systems for the energy industry, including low‑sulphate and low‑salinity injection water plants, produced water treatment systems and seawater desalination…
Serves offshore energy and oil and gas companies, including FPSO operators and project contractors needing water treatment systems and lifecycle service support for offshore production assets.
Financial Health
StableStable · Hiring · 10% CAGR over 2y
Location
PREMA ENERGY LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsImports, blends and wholesales liquid fuels including HVO, biodiesel, diesel, marine gas oil and heating oils. Supplies road, marine and heating fuel products, and provides fuel sourcing, custom…
Serves B2B fuel buyers including marine vessel operators, road transport fleets, industrial sites, and organisations with large heating applications seeking conventional and low-carbon fuel options.
Financial Health
WeakWeak · -66% CAGR over 4y
Location
Shaw Corporation Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and supplies steel pipes and tubular components for the energy industry, including casing, tubing, drill pipe and line pipe for oil and gas drilling and transport. Provides coating,…
Serves B2B customers in the global energy sector, including oil and gas operators, pipeline developers, hydrocarbon processing firms, low-carbon energy projects, power generation, automotive and…
Financial Health
DistressedDistressed · -16% CAGR over 4y
Location
SONAE (UK) LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides electrical and instrumentation engineering services for oil, gas and industrial sectors. Activities include system design, project management, E&I installation, control panel manufacturing,…
Serves B2B clients in oil and gas, utilities, petrochemical, pharmaceutical, manufacturing and industrial sectors, including gas network operators needing electrical, instrumentation and control…
Financial Health
StableStable · Hiring · 3% CAGR over 3y
Location
TROUVAY & CAUVIN LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsSupplies pipes, fittings, flanges, valves, structural steel and related piping products for oil and gas, energy, mining and infrastructure projects. Provides material supply, valve automation and…
Sells B2B to project teams, procurement functions and operators in energy, oil and gas, energy transition, mining, manufacturing and building infrastructure, including water treatment, district…
Financial Health
WeakWeak · -3% CAGR over 3y
Location
Trajectory
2y · 2023–NowProvides recruitment and workforce management services for the oil and gas, renewable energy, offshore maritime, subsea and construction sectors. Offers contract and permanent staffing, contractor…
Serves employers and candidates in global energy, maritime, offshore, oil and gas, renewables, subsea and construction sectors, including companies hiring permanent, contract, executive and managed…
Financial Health
Insufficient historyInsufficient history
Location
RE-MECH (UK) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides re‑engineering, repair and overhaul services for industrial rotating equipment including compressors, pumps, steam turbines and gearboxes. Also performs rotor balancing and manufactures…
Serves industrial businesses in the oil and gas, petrochemical and power generation sectors, particularly operators and maintenance teams responsible for rotating equipment such as compressors,…
Financial Health
HealthyHealthy · -67% CAGR over 4y
Location
Blue Sky Oilfield Supply & Services Ltd
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsProvides procurement and supply services for the oil and gas industry, sourcing drilling tools, exploration and production equipment, safety gear, and related materials. Also arranges logistics,…
Serves oil and gas businesses in the UK energy sector, including exploration, production, drilling and workover operators needing oilfield equipment, tools, workforce, logistics and procurement…
Financial Health
StrongStrong · Growing, Hiring · 115% CAGR over 2y
Location
NATIONWIDE FUELS AND LUBRICANTS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsWholesale supplier of fuels and lubricants including diesel, red diesel, HVO, kerosene, heating oil and AdBlue. Provides bulk fuel delivery, emergency supply, fuel management, tank telemetry, storage…
Serves businesses and households across the UK, including construction, commercial, agricultural and industrial customers, plus domestic heating oil users.
Financial Health
WeakWeak · -67% CAGR over 4y
Location
HYDRAULIC & GAS SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies tube and pipe fittings, valves, manifolds and related pipeline components for gas, oil, power and process industries. Products include stainless steel tubing, PTFE and plastic tube, ball and…
Serves B2B customers in the oil and gas, power and process industries, including engineering, maintenance and procurement teams managing projects or regular stock requirements.
Financial Health
StableStable · Hiring · 5% CAGR over 4y
Location
TROUVAY & CAUVIN (HOLDINGS) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies pipes, valves, fittings, flanges, structural steel and specialty piping products for oil and gas, energy, mining and infrastructure projects. Provides supply chain management, material…
Serves project owners, EPC contractors and industrial operators in oil and gas, energy transition, mining, manufacturing, building, water and infrastructure sectors, including water treatment,…
Financial Health
StableStable
Location
CENTAUR FUEL MANAGEMENT LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides installation, maintenance and repair of fuel storage and dispensing infrastructure, including tanks, pumps, dispensers and gauges. Supplies fuel management systems and cloud-based monitoring…
Serves B2B and public sector customers with fuel infrastructure needs, including fleet operators, fuel retailers, construction sites, agriculture, logistics, transport, utilities, truck stops,…
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 3y
Location
Ferrostatics (International) Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDesigns and manufactures precision‑engineered components and equipment for high‑pressure petrochemical and LDPE production plants, including valves, catalyst dosing pumps, high‑pressure blocks,…
Serves blue-chip petrochemical companies worldwide, particularly manufacturers and operators of high-pressure LDPE plants with OEM, spares and component requirements.
Financial Health
HealthyHealthy · -7% CAGR over 3y
Location
T & G TRADING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSources and procures crude oil and refined petroleum products from global suppliers, negotiating contracts and coordinating logistics, delivery, and inspection. Provides supply chain management and…
Serves B2B buyers of crude oil and refined oil products, including energy companies, distributors and industrial organisations needing international sourcing and supply-chain partners.
Financial Health
DistressedDistressed · -23% CAGR over 4y
Location
Trajectory
2y · 2022–NowFinancial sub-scores
Computed from 2 filingsIndependent oil and gas exploration and production company engaged in upstream activities including near‑field exploration, field development, and operation of mature oil and gas fields. Uses…
Financial Health
StrongStrong · Profitable
Location
MASAOOD JOHN BROWN INTERNATIONAL LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides maintenance, repair, overhaul and engineering services for industrial gas turbines. Supplies spare and replacement parts, refurbished turbine packages, rotor overhaul and life assessment,…
Serves B2B owners and operators of industrial gas turbines worldwide, particularly in the energy, industrial, oil and gas sectors, including engineering teams and plant operators using GE-design…
Financial Health
HealthyHealthy
Location
Liquid Dynamics International Ltd
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsDesigns and manufactures hydro‑pneumatic equipment for fluid handling systems, including pulsation dampers, surge and shock alleviators, thermal expansion vessels and hydraulic accumulators used to…
Serves industrial B2B customers worldwide, particularly petrochemical and oil and gas operators, engineering contractors and plant operators with high-pressure fluid and piping systems.
Financial Health
StrongStrong · Growing · 0% CAGR over 1y
Location
SUBSEA FLUID SERVICES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides independent testing, qualification and consultancy services for hydraulic fluids and subsea and topside equipment used in offshore oil and gas. Operates laboratories and bespoke test rigs to…
Sells to B2B customers in offshore oil and gas, especially operators, FEED contractors and equipment vendors needing subsea and topside equipment testing. Also serves buyers in aerospace,…
Financial Health
StableStable · Hiring · 15% CAGR over 2y
Location
Electro-Mechanical Installations Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsManufactures and fabricates precision‑engineered process instrumentation and flow measurement equipment, including thermowells, orifice plates, venturi tubes and control panels. Provides CNC…
Serves industrial B2B customers in chemical, oil and gas, pharmaceutical, water and nuclear sectors, particularly engineering and procurement teams needing process instrumentation and bespoke…
Financial Health
StableStable · 3% CAGR over 3y
Location
Stepeum Ltd
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
CROWN OIL INVESTMENTS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies and distributes fuels, oils and lubricants including diesel (DERV), red diesel, heating oil, kerosene, HVO fuel and AdBlue. Provides fuel delivery, fuel management, tank telemetry, emergency…
Sells to UK businesses across transport, industrial, agricultural, marine and commercial sectors, as well as homeowners needing heating oil. Targets organisations requiring bulk fuel, lubricants,…
Financial Health
StableStable · 0% CAGR over 2y
Location
Provides offshore drilling services to the oil and gas industry, operating a fleet of drillships and jack-up rigs for exploration and production wells in deepwater and shallow-water environments.
Serves B2B customers in the offshore energy sector, primarily oil and gas exploration and production companies needing long-term drilling partnerships and fleet capacity for offshore projects.
Location
Orseal Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies industrial valves, fittings and customised valve stock packages for flow control of liquids and gases. Provides off‑the‑shelf and bespoke valve solutions used in sectors including oil and…
Serves B2B industrial buyers and project teams in oil and gas, marine and defence, water and wastewater, space and aeronautics, fire protection, and power and energy sectors.
Financial Health
StableStable · 0% CAGR over 2y
Location
EXPRESS ENERGY LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 5y
Location
CHEIRON ENERGY LIMITED
Trajectory
2y · 2019–NowFinancial sub-scores
Computed from 2 filingsIndependent oil and gas exploration and production company engaged in upstream activities including near‑field exploration, field development, and operation of mature hydrocarbon fields. Focuses on…
Financial Health
StableStable
Location
Premium Lifts limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and supplies production optimisation equipment for oil and gas artificial lift systems, including downhole pump components such as torque anchors. Provides engineering design and technical…
Serves B2B customers in the oil and gas industry, particularly operators and production engineering teams managing artificial lift and downhole pump systems with demanding production problems.
Financial Health
StableStable · Hiring · 19% CAGR over 4y
Location
SPEEDY FUELS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies and distributes fuels, heating oil and oil‑based products including diesel, HVO, kerosene, AdBlue and lubricants. Provides nationwide fuel delivery, fuel management, tank inspection and…
Serves UK commercial and domestic fuel buyers, including transport fleets, construction and industrial sites, farms, marine operators, manufacturers, and homeowners needing heating oil.
Financial Health
HealthyHealthy · -41% CAGR over 4y
Location
PROMONTORY CONSULT UK LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides oil and gas drilling services using land and offshore drilling rigs. Offers drilling technology, rig equipment, automation systems, well engineering, survey management, and real‑time…
Serves oil and gas operators and energy companies worldwide that need land and offshore drilling rigs, well engineering, survey management and drilling performance services.
Financial Health
HealthyHealthy · -71% CAGR over 4y
Location
CDL LTD
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsProvides subsurface geoscience analysis and data products for energy and resource sectors. Services include basin and reservoir evaluation, geological and hydrodynamic studies, carbon capture and…
Serves global B2B customers in oil and gas exploration, CCUS, geothermal energy and critical minerals, including E&P operators, energy service firms, project developers and financial organisations…
Financial Health
HealthyHealthy · Hiring · 22% CAGR over 5y
Location
SPECIAL PIPING MATERIALS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies stainless steel, duplex, super duplex and nickel alloy piping materials, including seamless and welded pipes, butt weld fittings, flanges, forged fittings and bar. Acts as a global…
Serves B2B engineering, procurement and project teams in oil and gas, petrochemical, LNG, nuclear, defence, desalination, mining and minerals sectors worldwide.
Financial Health
StableStable · Profitable · 0% CAGR over 2y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides heavy lift engineering and logistics services for industrial construction and maintenance projects. Designs and deploys ring cranes, and offers project planning, fabrication support, turbine…
Serves B2B clients running heavy-lift, transport and logistics projects in industrial construction, plant maintenance, petrochemical, civil construction, wind farm, mining, marine and offshore energy…
Financial Health
WeakWeak · -9% CAGR over 3y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides engineering consultancy and project support for energy and marine projects, including green hydrogen, nuclear and oil and gas. Services include concept and detailed design, procurement…
Serves B2B clients in green hydrogen, nuclear power, oil and gas, and marine sectors, including energy developers, operators and EPC contractors involved in engineering and construction projects.
Financial Health
HealthyHealthy · Hiring · 41% CAGR over 2y
Location
SAFELOK COMPONENTS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsManufactures and supplies instrumentation valves and fluid system components, including needle valves, ball valves, manifolds, block and bleed valves, tube and pipe fittings, bronze tube fittings,…
Serves industrial businesses and distributors sourcing valves, manifolds, tube fittings and instrumentation pipe fittings for high-pressure fluid or process systems.
Financial Health
StableStable · -16% CAGR over 2y
Location
Rolcer Lubricants Limited
Trajectory
4y · 2021–NowFinancial Health
Insufficient historyInsufficient history
Location
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How Manchester oil and gas companies work and how to sell to them
What they do
Manchester oil and gas businesses typically earn through project fees, equipment supply, maintenance contracts, logistics charges, consultancy, fabrication, inspection, and commercial support for energy assets. Revenue is usually tied to work packages, call-off agreements, day rates, fixed-price scopes, retainers, or margins on specialist parts and consumables. The product shape is mixed: physical kit, field labour, engineering documentation, compliance evidence, and operational know-how often sit in the same sale. Cash collection can depend on milestone approval, purchase-order discipline and customer sign-off, so suppliers care about utilisation, margin leakage, insurance cost and the administrative load around each job.
Who they sell to
Most sell to procurement, engineering, operations and commercial teams at producers, infrastructure owners, industrial sites, fuel distributors and larger contractors. Common decision-makers include operations directors, engineering managers, supply-chain leads, HSE managers, finance controllers and project directors, with procurement often controlling supplier onboarding and framework access. Sales cycles tend to involve technical qualification, safety checks, insurance review, site references and commercial negotiation before a purchase order is issued. Lower-risk repeat work may come through approved-supplier lists, while larger or unfamiliar scopes are more likely to move through formal tenders, site visits and multi-stakeholder evaluation.
What they buy
Oil and gas firms tend to spend on systems and services that reduce admin around industrial work: project accounting, bid management, CRM, document control, asset maintenance, field-service scheduling, inventory, fleet, quality management, health and safety reporting, environmental reporting and contractor management. Cybersecurity, cloud hosting, backup, finance, payroll and workforce planning also matter where small teams handle customer audits and site documentation. Outside software, likely buying categories include legal support, insurance, technical recruitment, training, certification, calibration, inspection, marketing for tender credibility, accounting, tax, plant hire, logistics, testing and specialist consultancy around regulated operating environments.
Why and how to sell to them
Buying intent often appears when firms win a new maintenance package, join or renew a framework, fail a customer audit, replace spreadsheet-led job control, take on site-based staff, or need clearer margin visibility across project work. Insurance renewals, HSE incidents, leadership changes and pressure from larger customers can also force a review of suppliers and internal systems. Outbound is usually more credible when it links to uptime, tender readiness, compliance evidence, faster document retrieval, fewer invoice disputes or better control of contractor cost. Generic growth messaging tends to land poorly; operational proof and sector-specific workflow detail matter more.
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.
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