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Data / France companies / Specialised construction activities / Loir-et-Cher

Specialised construction activities in Loir-et-Cher: 2,004 active companies

Updated November 7, 2026. Source: INSEE, base Sirene des entreprises et de leurs établissements, on data.gouv.fr.

2,004 active companies in Loir-et-Cher have a main activity in NAF division 43, specialised construction activities, in the Sirene register stock dated 1 November 2026. 106 were registered in the last 12 months, 5 of them in October 2026, and 845 have employees.

The request: Every company in Loir-et-Cher in NAF division 43, specialised construction activities, registered since 2025, with SIREN, NAF code, address and employee band. $10 of work on sign-up, no card.

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SpecStream is the live web data engine for teams and agents. It reads the Sirene register every month, and this page is that reading. Ask for the companies you track by industry, place or registration date and each new company arrives in your sheet, CRM, Slack or agent.

  • 2,004Active companies
  • 106Registered in the last 12 months
  • 5Registered in October 2026
  • 845 (42.2%)With employees
  • 1 November 2026Stock date

Registrations in the last 12 months

Active companies by the month their registration date falls in. The newest month is the last full month before the stock date.

MonthCompanies registered
October 20265
September 20264
August 202613
July 202611
June 20269
May 20265
April 202611
March 202617
February 20268
January 202613
December 20258
November 20252

Registrations per year

Companies registered in each year that are still active in the 1 November 2026 stock. Companies that closed earlier are not counted, so older years read low.

Year registeredActive companies
2022102
2023122
2024110
2025120
2026 so far98

By number of employees

The employee band the register holds for each company, as declared for its latest reference year.

EmployeesActive companiesShare
No employees or not declared1,15957.8%
1 to 9 employees70135.0%
10 to 49 employees1366.8%
50 to 249 employees70.3%
250 employees or more10.0%

Industries

IndustryNAF codeActive companies
General masonry and building shell work43.99C514
Electrical installation in all premises43.21A224
Wood and PVC joinery installation43.32A170
Water and gas installation in all premises43.22A166
Roof framing and carpentry43.91A129
Painting and glazing43.34Z115
Routine site preparation and earthworks43.12A111
Roof covering with tiles and slates43.91B89
Plastering43.31Z84
Heating and air conditioning installation43.22B78
Metal joinery and locksmith installation43.32B73
Floor and wall covering43.33Z71
Other specialised construction activities43.99D31
Insulation work activities43.29A30
Erection of metal structures43.99B29
Waterproofing work43.99A28
Shop fitting43.32C20
Other building completion and finishing43.39Z15
Other construction installation n.e.c.43.29B7
Demolition43.11Z5
Specialised or large-scale earthworks43.12B5
Renting of construction equipment with operator43.99E5
Test drilling and boring43.13Z3
Electrical installation on public roads43.21B2

Newest registered companies

Newest first. Only companies with a name that is clearly a business are listed; the counts above include every active company. Each row links to the public record.

CompanySIRENRegisteredNAF codeCommuneSource
Serpin Energies Services1316670571 November 202643.22BBoisseauannuaire-entreprises.data.gouv.fr
C.D-S Ravalement1315193401 November 202643.99CBillyannuaire-entreprises.data.gouv.fr
Trois Provinces Travaux Publics13192056328 October 202643.12ATheseeannuaire-entreprises.data.gouv.fr
JP LC Electricite MT13181818919 October 202643.21ARomorantin-Lanthenayannuaire-entreprises.data.gouv.fr
MKA13126678519 October 202643.91BVendomeannuaire-entreprises.data.gouv.fr
BMK Construction13132251312 October 202643.99CSuevresannuaire-entreprises.data.gouv.fr
YC la Touche Finale1309229331 October 202643.34ZLa Chapelle-Saint-Martin-en-Plaineannuaire-entreprises.data.gouv.fr
AB Travaux13096376229 September 202643.11ZChampigny-en-Beauceannuaire-entreprises.data.gouv.fr
Maison ECO13047719323 September 202643.99CBloisannuaire-entreprises.data.gouv.fr
AS Clim Solutions13036344321 September 202643.22ABloisannuaire-entreprises.data.gouv.fr

Licence Ouverte / Open Licence 2.0 (Etalab), source INSEE. Counts are of active companies in the Sirene register stock dated 1 November 2026: commercial companies (SARL, SAS, SA and the like) and civil companies such as SCI property companies. Sole traders, associations and public bodies are not counted, and the register lists dormant holding and property companies as active, so a count is of companies on the register, not of trading businesses. A company is counted under its main activity (NAF rev. 2 code) and the commune of its head office; companies whose register entry holds no NAF rev. 2 code are in the totals only. "With employees" means the register holds an employee band of one or more. Industry titles are English renderings of the INSEE labels. Contains data from INSEE, reused under the Licence Ouverte 2.0. This page is not endorsed by INSEE. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.