Sewerage: the largest employers in East Flanders
As of 12 Nov 2026, 21 companies in Sewerage (NACE 37) in East Flanders report employees in recent accounts (financial years 2025 to 2026). The 10 largest employers account for 447.8 FTE, out of 508.7 for all of them; median headcount is 12.2 FTE. Trevi leads with 129 FTE (financial year 2025).
Top 21 · Sewerage · East Flanders
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 | Trevi 9050 Ghent | €25.6m | €36.2m | €9.92m | 129.0 | 2025 |
| 2 | De Bree Solutions 9990 Maldegem | €50.7m | €21.4m | €28.9m | 82.4 | 2025 |
| 3 | Lammertyn.Net 9120 Beveren-Kruibeke-Zwijndrecht | €5.83m | €10.0m | €3.11m | 57.4 | 2025 |
| 4 | T.W.Z. 9940 Evergem | €108.6m | €22.3m | €82.4m | 54.8 | 2025 |
| 5 | Dranco 9000 Ghent | €18.9m | €1.45m | €2.31m | 34.0 | 2025 |
| 6 | Aquamella 9090 Merelbeke-Melle | €2.81m | €5.47m | 777,221 € | 30.5 | 2025 |
| 7 | ALL Industrial Cleaning 9042 Ghent | €4.59m | — | €1.07m | 16.4 | 2025 |
| 8 | Aqua JET Vlerick 9810 Nazareth-De Pinte | €4.40m | — | €1.92m | 15.1 | 2025 |
| 9 | Van Parys - Stepman 9810 Nazareth-De Pinte | €2.41m | — | €1.06m | 15.1 | 2025 |
| 10 | De Vleminck Jan 9400 Ninove | €1.62m | — | 434,145 € | 13.1 | 2025 |
| 11 | Seureca Industrial Water Services 9090 Merelbeke-Melle | €3.01m | €2.04m | €2.39m | 12.2 | 2025 |
| 12 | De Seranno Cleaning 9940 Evergem | €1.95m | — | 584,867 € | 9.5 | 2026 |
| 13 | Moens Bart 9200 Dendermonde | €2.52m | — | 686,284 € | 8.6 | 2025 |
| 14 | M&C Cleaning 9990 Maldegem | 795,915 € | — | 289,241 € | 7.7 | 2025 |
| 15 | Seico 9230 Wetteren | €1.48m | — | 343,385 € | 5.2 | 2025 |
| 16 | GLK Recycling 9770 Kruisem | €1.49m | — | 532,693 € | 4.2 | 2025 |
| 17 | Ruimdienst van der Straeten 9570 Lierde | €1.25m | — | €1.11m | 4.0 | 2025 |
| 18 | VDVK Ontstoppingen 9100 Sint-Niklaas | 175,923 € | — | −14,431 € | 3.8 | 2025 |
| 19 | Rackunits 9420 Erpe-Mere | 641,447 € | — | 390,232 € | 3.3 | 2025 |
| 20 | Sobry ontstoppingen 9160 Lokeren | 376,584 € | — | 205,278 € | 1.7 | 2025 |
| 21 | RVM Cleaning 9170 Sint-Gillis-Waas | €1.22m | — | 142,443 € | 0.7 | 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 · East Flanders →
Other sectors · East Flanders
- 01 Crop and animal production, hunting and related service activities376
- 02 Forestry and logging14
- 10 Manufacture of food products536
- 11 Manufacture of beverages40
- 13 Manufacture of textiles110
- 14 Manufacture of wearing apparel33
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials115
- 17 Manufacture of paper and paper products41
- 18 Printing and reproduction of recorded media115
- 20 Manufacture of chemicals and chemical products106
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations22
- 22 Manufacture of rubber and plastic products86
- 23 Manufacture of other non-metallic mineral products148
- 24 Manufacture of basic metals36
- 25 Manufacture of fabricated metal products, except machinery and equipment429
- 26 Manufacture of computer, electronic and optical products51
- 27 Manufacture of electrical equipment56
- 28 Manufacture of machinery and equipment n.e.c.155
- 29 Manufacture of motor vehicles, trailers and semi-trailers37
- 30 Manufacture of other transport equipment12
- 31 Manufacture of furniture113
- 32 Other manufacturing70
- 33 Repair, maintenance and installation of machinery and equipment146
- 35 Electricity, gas, steam and air conditioning supply24
- 38 Waste collection, recovery and disposal activities87
- 41 Construction of residential and non-residential buildings824
- 42 Civil engineering353
- 43 Specialised construction activities2,547
- 46 Wholesale trade2,074
- 47 Retail trade2,477
- 49 Land transport and transport via pipelines738
- 50 Water transport18
- 52 Warehousing, storage and support activities for transportation163
- 53 Postal and courier activities27
- 55 Accommodation148
- 56 Food and beverage service activities1,693
- 58 Publishing activities71
- 59 Motion picture, video and television programme production, sound recording and music publishing activities72
- 61 Telecommunication15
- 62 Computer programming, consultancy and related activities686
- 63 Computing infrastructure, data processing, hosting and other information service activities42
- 64 Financial service activities, except insurance and pension funding529
- 66 Activities auxiliary to financial services and insurance activities435
- 68 Real estate activities595
- 69 Legal and accounting activities695
- 70 Activities of head offices and management consultancy557
- 71 Architectural and engineering activities; technical testing and analysis442
- 72 Scientific research and development70
- 73 Activities of advertising, market research and public relations151
- 74 Other professional, scientific and technical activities78
- 75 Veterinary activities64
- 77 Rental and leasing activities114
- 78 Employment activities76
- 79 Travel agency, tour operator and other reservation service and related activities63
- 80 Investigation and security activities10
- 81 Services to buildings and landscape activities378
- 82 Office administrative, office support and other business support activities183
- 84 Public administration and defence; compulsory social security13
- 85 Education120
- 86 Human health activities770
- 87 Residential care activities114
- 88 Social work activities without accommodation137
- 90 Arts creation and performing arts activities71
- 92 Gambling and betting activities18
- 93 Sports activities and amusement and recreation activities182
- 94 Activities of membership organisations73
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles216
- 96 Personal service activities306
Municipalities with the most companies in the sector · East Flanders
- 9090 Merelbeke-Melle (Gontrode, Melle)2
- 9120 Beveren-Kruibeke-Zwijndrecht (Haasdonk, Kallo, Melsele, …)2
- 9160 Lokeren (Daknam, Eksaarde)2
- 9400 Ninove (Appelterre-Eichem, Denderwindeke, Lieferinge, …)2
- 9770 Kruisem (Kruishoutem)2
- 9810 Nazareth-De Pinte (Eke, Nazareth)2
- 9940 Evergem (Ertvelde, Kluizen, Sleidinge)2
- 9990 Maldegem2
- 9000 Ghent1
- 9042 Ghent (Desteldonk, Mendonk, Sint-Kruis-Winkel)1
- 9050 Ghent (Gentbrugge, Ledeberg)1
- 9100 Sint-Niklaas (Nieuwkerken-Waas)1
Frequently asked questions
Which is the largest employer in Sewerage in East Flanders?
Among companies, Trevi, with 129 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. 21 out of 33 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 · East Flanders
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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.