HVAC
UK companies organised by the CorpSignals industry, segment, and subsegment taxonomy.
Company snapshot
What this shows: the size and current activity of this classification, plus recent formations, company age, revenue coverage, and trade participation.
All companies
68495
Active companies
53707
Formed in latest 12 months
7481
Median active-company age
5.8 years
Revenue known
631
Importers
508
Exporters
150
Top values shown in the chart
| Category | Companies |
|---|---|
| All companies | 68,495 |
| Active companies | 53,707 |
| Formed in latest 12 months | 7,481 |
| Importers | 508 |
| Exporters | 150 |
Revenue coverage among active companies: 631 known, 53076 unknown (1.2%).
Company formations
What this shows: monthly incorporations and dissolutions from 1 January 2024, including companies of every current status.
Latest ten months shown in the chart
| Month | Formed | Dissolved |
|---|---|---|
| 2025-11 | 555 | 395 |
| 2025-12 | 427 | 480 |
| 2026-01 | 665 | 438 |
| 2026-02 | 616 | 468 |
| 2026-03 | 823 | 461 |
| 2026-04 | 750 | 451 |
| 2026-05 | 576 | 442 |
| 2026-06 | 593 | 342 |
| 2026-07 | 727 | 684 |
| 2026-08 | 394 | 434 |
Window: 2024-01 to 2026-08.
Company status
What this shows: all current Companies House status values. Companies House Active records with dormant accounts are shown as Dormant; the remaining Companies House Active records are shown as Active. Blank and missing values are combined as Unknown.
Top values shown in the chart
| Status | Companies |
|---|---|
| Active | 50,893 |
| Dissolved | 13,625 |
| Dormant | 2,814 |
| Liquidation | 1,133 |
| In Administration | 23 |
| Voluntary Arrangement | 4 |
| Insolvency Proceedings | 3 |
Active companies by UK region
What this shows: active companies with a known ITL2 region. The UK map falls back to a bar chart if map data cannot be loaded.
Top values shown in the chart
| ITL2 region | Companies |
|---|---|
| Surrey, East and West Sussex | 2,752 |
| Outer London - East and North East | 2,545 |
| Outer London - West and North West | 2,475 |
| Essex | 2,383 |
| Berkshire, Buckinghamshire and Oxfordshire | 2,265 |
| Inner London - East | 2,255 |
| Bedfordshire and Hertfordshire | 2,217 |
| West Midlands | 2,082 |
| Greater Manchester | 2,057 |
| Kent | 1,949 |
Geography coverage: 53150 known, 557 unknown (99.0%).
Revenue ranges
What this shows: active companies grouped into the platform’s ordered estimated-revenue bands.
Top values shown in the chart
| Revenue range | Companies |
|---|---|
| 0-1m | 35,847 |
| 1m-15m | 3,612 |
| 15m-54m | 162 |
| 54m+ | 102 |
Revenue-range coverage: 39723 known, 13984 unknown (74.0%).
Company size and employees
What this shows: active companies by published size category and by reported employee count.
Top values shown in the chart
| Company size | Companies |
|---|---|
| Micro | 21,713 |
| Small | 17,165 |
| Medium | 71 |
| Large | 215 |
| Holding | 34 |
| Dormant | 2,814 |
Company-size coverage: 42012 known, 11695 unknown (78.2%).
Top values shown in the chart
| Employees | Companies |
|---|---|
| 0 | 6,151 |
| 1–9 | 30,817 |
| 10–49 | 1,691 |
| 50–249 | 151 |
| 250+ | 10 |
Employee coverage: 38820 known, 14887 unknown (72.3%).
Active-company age
What this shows: how long currently active companies have been incorporated.
Top values shown in the chart
| Age band | Companies |
|---|---|
| Under 1 year | 7,345 |
| 1–3 years | 9,731 |
| 3–5 years | 7,040 |
| 5–10 years | 13,481 |
| 10–20 years | 11,087 |
| 20+ years | 5,023 |
Incorporation-date coverage: 53707 known, 0 unknown (100.0%).
Classification breakdown
What this shows: active companies across the next taxonomy level; direct assignments are labelled separately. The top 20 are shown and remaining values are combined as Other.
Top values shown in the chart
| Classification | Companies |
|---|---|
| Directly assigned to this segment | 53,707 |
International trade
What this shows: active-company participation in imports and exports, followed by the ten HS2 categories involving the most distinct companies.
Top values shown in the chart
| Trade participation | Companies |
|---|---|
| Importer only | 411 |
| Exporter only | 53 |
| Both | 97 |
| Neither | 53,146 |
Top imports HS2 categories
Top values shown in the chart
| HS2 category | Companies | GBP | Available dates |
|---|---|---|---|
| 84 — Machinery, boilers, and mechanical appliances; parts | 289 | £30,107,482,939 | 2016-01-01 – 2026-05-01 |
| 85 — Electrical machinery and equipment | 207 | £30,249,011,466 | 2016-01-01 – 2026-05-01 |
| 90 — Optical and medical tools and devices | 128 | £5,287,962,865 | 2016-01-01 – 2026-05-01 |
| 73 — Iron or Steel Products | 127 | £4,903,724,666 | 2016-01-01 – 2026-05-01 |
| 94 — Furniture, Lighting, and Prefabricated Buildings | 96 | £5,371,161,406 | 2016-01-01 – 2026-05-01 |
| 39 — Plastics and plastic products | 87 | £4,564,924,591 | 2016-01-01 – 2026-05-01 |
| 76 — Aluminum and aluminum products | 66 | £1,874,120,674 | 2016-09-01 – 2026-05-01 |
| 74 — Copper and copper products | 58 | £368,027,568 | 2016-04-01 – 2026-05-01 |
| 68 — Stone, plaster, cement, and similar material products | 41 | £347,884,707 | 2016-09-01 – 2026-05-01 |
| 83 — Miscellaneous metal items | 40 | £535,552,523 | 2016-01-01 – 2026-05-01 |
Top exports HS2 categories
Top values shown in the chart
| HS2 category | Companies | GBP | Available dates |
|---|---|---|---|
| 84 — Machinery, boilers, and mechanical appliances; parts | 90 | £6,918,555,598 | 2016-01-01 – 2026-05-01 |
| 85 — Electrical machinery and equipment | 82 | £6,530,937,928 | 2016-01-01 – 2026-05-01 |
| 90 — Optical and medical tools and devices | 56 | £2,901,725,262 | 2016-01-01 – 2026-05-01 |
| 73 — Iron or Steel Products | 39 | £1,202,704,514 | 2016-02-01 – 2026-05-01 |
| 39 — Plastics and plastic products | 22 | £788,866,374 | 2019-05-01 – 2026-04-01 |
| 94 — Furniture, Lighting, and Prefabricated Buildings | 22 | £315,821,195 | 2017-05-01 – 2026-05-01 |
| 74 — Copper and copper products | 17 | £43,312,673 | 2016-02-01 – 2026-05-01 |
| 87 — Vehicles, parts, and accessories (not for trains or trams) | 14 | £747,803,253 | 2016-01-01 – 2026-04-01 |
| 83 — Miscellaneous metal items | 12 | £43,134,309 | 2020-07-01 – 2026-05-01 |
| 76 — Aluminum and aluminum products | 11 | £85,017,655 | 2016-06-01 – 2026-04-01 |
Business and digital traits
What this shows: active companies identified with selected ownership, business-model, and online-presence traits.
Values shown in the chart with data coverage
| Trait | Companies | Known | Unknown | Coverage |
|---|---|---|---|---|
| Family business | 6,398 | 51,189 | 2,518 | 95.3% |
| Holding company | 1 | 51,189 | 2,518 | 95.3% |
| Solo founder | 29,540 | 51,189 | 2,518 | 95.3% |
| Ecommerce | 35 | 361 | 53,346 | 0.7% |
| Website | 449 | 465 | 53,242 | 0.9% |
| 301 | 465 | 53,242 | 0.9% |
Leading active companies
What this shows: the ten active companies with the highest non-missing revenue, with company number used as the deterministic tie-breaker.
Top values shown in the chart
| Company | Revenue |
|---|---|
| Cubico (uk) Limited | £110,309,271 |
| Berks Insulation Limited | £81,243,559 |
| J C A Engineering Ltd | £71,772,109 |
| Bancroft Limited | £69,592,223 |
| Bjf Connections Ltd | £68,486,214 |
| Borthwick Heating Insulation Uk Ltd | £64,238,247 |
| A. & B. Engineering (mechanical Service Division) Limited | £59,860,357 |
| Smith And Byford Limited | £58,528,676 |
| Woodford Heating & Energy Limited | £57,904,784 |
| C Watkins Plumbing Limited | £50,702,603 |
Revenue coverage: 631 known, 53076 unknown (1.2%).
Related classifications
What this shows: sibling classifications ranked by distinct active companies, excluding the current node. The top 20 are shown and remaining values are combined as Other.
Top values shown in the chart
| Classification | Companies |
|---|---|
| Development | 117,421 |
| Domestic | 103,346 |
| Special construction | 68,826 |
| Finishing | 60,756 |
| Electrical installation | 60,710 |
| Commercial | 45,011 |
| Other installation n.e.c. | 41,209 |
| Joinery | 24,366 |
| Other civil n.e.c. | 19,748 |
| Roofing | 19,013 |
| Painting | 18,330 |
| Floor/wall covering | 12,776 |
| Plastering | 10,187 |
| Glazing | 8,216 |
| Scaffolding | 7,385 |
| Site preparation | 5,789 |
| Machinery installation | 5,578 |
| Electric & telecom | 5,213 |
| Roads | 5,082 |
| Railways, underground | 3,910 |
| Other | 6,320 |
SIC classification
SIC 43220 — Plumbing, heat and air-conditioning installation
Includes
installation in buildings or other construction projects of:, heating systems (electric, gas and oil), furnaces, cooling towers, non-electric solar energy collectors, plumbing and sanitary equipment, ventilation and air-conditioning equipment and ducts, gas fittings, steam piping, fire sprinkler systems, lawn sprinkler systems, duct work installation
Excludes
installation of electric baseboard heating, see ##43.21
Details
This class includes the installation of equipment other than electrical, plumbing, heating and air conditioning systems or industrial machinery in buildings and civil engineering structures.