Resources

UK Company Lists by Industry: 295 Curated Sector Rankings (2026)

Browse 295 curated rankings of UK companies by sector, built from live Companies House data and enriched with Firmbase's B2B intelligence layer.

Methodology

Each list draws from live Companies House records, grouped using a curated mapping of UK SIC 2007 codes to industry tags — with an LLM classifier as a fallback for cross-sector and ambiguous lists. Companies inside each list are ranked using an enrichment layer that combines filed financials (revenue, headcount, growth) with a sales-readiness score, so the top entries reflect ongoing commercial activity rather than mere registration. Lists are reviewed by Firmbase before publication.

295 curated listsUnited Kingdom

Technology

54 lists

Software, SaaS, infrastructure, data, AI, security, and the services and integrators that deliver them. Sub-lists drill down by sector vertical and business model.

Financial Services

37 lists

Banks, insurers, asset managers, fintech, payments, capital markets, and the regulated advisory and brokerage businesses around them. Mostly London-concentrated but with growing regional clusters surfaced on the spoke pages.

Professional Services

36 lists

Law firms, accountants, management consultancies, recruiters, and the B2B services around them. The lens favours trading partnerships with filed accounts and more than a handful of employees rather than sole practitioners.

Healthcare & Life Sciences

22 lists

Hospitals, clinics, pharma, medtech, diagnostics, biotech, and the contract-research and care-services businesses that surround them. Includes UK subsidiaries of multinationals as well as domestic operators.

Manufacturing & Industry

19 lists

Discrete and process manufacturing across consumer goods, industrial products, materials, and components. Captures both heritage UK manufacturers and the contract-manufacturing ecosystem that supplies them.

Engineering & Built Environment

31 lists

Civil, mechanical, electrical, structural engineering, plus the architects, surveyors, and construction firms that translate engineering work into buildings and infrastructure across the UK.

Energy & Sustainability

16 lists

Generators, suppliers, traders, and the wider clean-tech, decarbonisation, and circular-economy supply chain. Covers the incumbents alongside the UK companies built around the energy transition.

Retail

12 lists

High-street, e-commerce, omnichannel, and the wholesale and distribution layers that supply them. UK-domiciled retail operators with a recent filing record, including the e-commerce-only operators.

Media & Consumer

28 lists

Publishers, broadcasters, agencies, consumer brands, food and drink, hospitality, leisure, and the creative-industries supply chain. UK-headquartered consumer-facing businesses with filed accounts.

Transport & Logistics

13 lists

Freight, logistics, fleets, last-mile, ports, rail, aviation, and the warehousing and supply-chain technology around them. Covers both the asset-heavy operators and the asset-light platforms.

Agriculture & Primary Industry

6 lists

Farms, growers, foresters, fisheries, and the upstream input businesses that supply them. The list lens picks out commercially active UK operators with filed financials rather than dormant or single-asset holding companies.

Education, NFP & Third Sector

8 lists

Schools, colleges, universities, charities, social enterprises, and other mission-driven organisations registered as UK companies. Includes commercial subsidiaries of registered charities where Companies House surfaces them as distinct entities.

Public Sector

7 lists

Publicly-owned trading companies, council-owned operating companies, and the corporatised infrastructure operators that file at Companies House. Statutory bodies — most NHS trusts, government departments — sit outside this dataset.

Company Stage

3 lists

Lists organised around lifecycle and ownership stage rather than sector — early-stage, venture-backed, private-equity-backed, founder-led. Useful when the qualifying signal is funding or maturity rather than what the company does.

Other

3 lists

Lists pending sector classification.