Sewerage: the largest employers in Hainaut
As of 12 Nov 2026, 11 companies in Sewerage (NACE 37) in Hainaut report employees in recent accounts (financial year 2025). The 10 largest employers account for 56.8 FTE, out of 57.1 for all of them; median headcount is 6 FTE. Vidange Nette leads with 14.8 FTE (financial year 2025).
Top 11 · Sewerage · Hainaut
Ranked by average headcount (FTE) reported in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Vidange Nette 7332 Saint-Ghislain | €2.32m | — | 664,121 € | 14.8 | 2025 |
| 2 | Demuynck et Fils 7712 Mouscron | 699,106 € | — | 327,621 € | 10.0 | 2025 |
| 3 | Vidange Rary 6534 Thuin | €3.07m | €23.9m | €2.13m | 8.0 | 2025 |
| 4 | HTC Seneffe 7170 Manage | €2.06m | — | 506,122 € | 7.1 | 2025 |
| 5 | De Bree Solutions Wallonie 7700 Mouscron | €1.08m | — | −533,043 € | 6.8 | 2025 |
| 6 | Vidange Inter 6040 Charleroi | 788,566 € | — | 331,557 € | 6.0 | 2025 |
| 7 | Vidange Eclair 7522 Tournai | 687,400 € | — | 404,890 € | 2.0 | 2025 |
| 8 | Vidange Willy 6210 Les Bons Villers | 726,238 € | — | 355,926 € | 1.0 | 2025 |
| 9 | La Vidange Gillicienne 6200 Châtelet | 127,335 € | — | 74,796 € | 0.8 | 2025 |
| 10 | DICD 7060 Soignies | 144,748 € | — | 17,688 € | 0.3 | 2025 |
| 11 | La Belle Vidange 6224 Fleurus | 461,178 € | 304,113 € | 46,300 € | 0.3 | 2025 |
Ranking based on each company's own annual accounts (statutory, not consolidated): a subsidiary and its parent appear separately, and the ranking differs from lists based on consolidated group accounts. Headcount reported by the company for all its sites: the jobs may be located elsewhere.
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Sewerage across Belgium → All sectors · Hainaut →
Other sectors · Hainaut
- 01 Crop and animal production, hunting and related service activities202
- 02 Forestry and logging21
- 08 Other mining and quarrying15
- 10 Manufacture of food products289
- 11 Manufacture of beverages27
- 13 Manufacture of textiles38
- 14 Manufacture of wearing apparel10
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials46
- 17 Manufacture of paper and paper products19
- 18 Printing and reproduction of recorded media48
- 20 Manufacture of chemicals and chemical products68
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations17
- 22 Manufacture of rubber and plastic products50
- 23 Manufacture of other non-metallic mineral products103
- 24 Manufacture of basic metals37
- 25 Manufacture of fabricated metal products, except machinery and equipment271
- 26 Manufacture of computer, electronic and optical products14
- 27 Manufacture of electrical equipment18
- 28 Manufacture of machinery and equipment n.e.c.58
- 29 Manufacture of motor vehicles, trailers and semi-trailers13
- 31 Manufacture of furniture35
- 32 Other manufacturing49
- 33 Repair, maintenance and installation of machinery and equipment93
- 35 Electricity, gas, steam and air conditioning supply12
- 38 Waste collection, recovery and disposal activities71
- 41 Construction of residential and non-residential buildings508
- 42 Civil engineering76
- 43 Specialised construction activities1,384
- 46 Wholesale trade913
- 47 Retail trade2,002
- 49 Land transport and transport via pipelines321
- 52 Warehousing, storage and support activities for transportation74
- 53 Postal and courier activities21
- 55 Accommodation77
- 56 Food and beverage service activities1,123
- 58 Publishing activities15
- 59 Motion picture, video and television programme production, sound recording and music publishing activities21
- 61 Telecommunication13
- 62 Computer programming, consultancy and related activities179
- 63 Computing infrastructure, data processing, hosting and other information service activities17
- 64 Financial service activities, except insurance and pension funding138
- 66 Activities auxiliary to financial services and insurance activities343
- 68 Real estate activities351
- 69 Legal and accounting activities523
- 70 Activities of head offices and management consultancy246
- 71 Architectural and engineering activities; technical testing and analysis186
- 72 Scientific research and development36
- 73 Activities of advertising, market research and public relations69
- 74 Other professional, scientific and technical activities29
- 75 Veterinary activities54
- 77 Rental and leasing activities44
- 78 Employment activities29
- 79 Travel agency, tour operator and other reservation service and related activities51
- 80 Investigation and security activities13
- 81 Services to buildings and landscape activities216
- 82 Office administrative, office support and other business support activities83
- 85 Education199
- 86 Human health activities560
- 87 Residential care activities269
- 88 Social work activities without accommodation130
- 90 Arts creation and performing arts activities41
- 91 Libraries, archives, museums and other cultural activities14
- 92 Gambling and betting activities12
- 93 Sports activities and amusement and recreation activities128
- 94 Activities of membership organisations60
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles152
- 96 Personal service activities265
Municipalities with the most companies in the sector · Hainaut
- 6010 Charleroi (Couillet)1
- 6040 Charleroi (Jumet)1
- 6200 Châtelet (Bouffioulx, Châtelineau)1
- 6210 Les Bons Villers (Frasnes-Lez-Gosselies, Rèves, Villers-Perwin, …)1
- 6224 Fleurus (Wanfercée-Baulet)1
- 6534 Thuin (Gozée)1
- 7000 Mons1
- 7060 Soignies (Horrues)1
- 7170 Manage (Bellecourt, Bois-D'haine, Fayt-Lez-Manage, …)1
- 7332 Saint-Ghislain (Neufmaison, Sirault)1
- 7370 Dour (Blaugies, Elouges, Wihéries)1
- 7522 Tournai (Blandain, Hertain, Lamain, …)1
Frequently asked questions
Which is the largest employer in Sewerage in Hainaut?
Among companies, Vidange Nette, with 14.8 full-time equivalents reported (financial year 2025).
Are all the jobs located in the area?
Not necessarily: headcount is reported by the company for all its sites, and the company is ranked by the address of its registered office. 11 out of 16 companies in the sector report employees there.
Why does this ranking differ from other lists?
It uses each company's annual accounts as filed with the National Bank, not consolidated group accounts. A holding, a subsidiary or a purchasing entity can therefore appear separately. Only companies whose latest accounts are less than 3 years old are ranked.
Analyse companies · Hainaut
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Open the full file →Active companies (legal entities) that have filed at least one set of annual accounts, based on the Crossroads Bank for Enterprises and the National Bank of Belgium. The sector is the main activity in the register; the municipality is that of the registered office. Data updated on 12 Nov 2026.