Ranking · East Flanders · NACE 37
Sewerage: the largest companies in East Flanders
As of 12 Nov 2026, 32 companies in Sewerage (NACE 37) in East Flanders publish total assets in recent accounts (financial years 2024 to 2026). The top 10 account for €227.0m, out of €246.9m for all of them; median total assets are €1.37m. T.W.Z. leads with €108.6m (financial year 2025).
Top 32 · Sewerage · East Flanders
Ranked by total assets in the latest filed accounts. This is a size criterion, not an assessment.
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | T.W.Z. 9940 Evergem | €108.6m | €22.3m | €82.4m | 54.8 | 2025 |
| 2 | De Bree Solutions 9990 Maldegem | €50.7m | €21.4m | €28.9m | 82.4 | 2025 |
| 3 | Trevi 9050 Ghent | €25.6m | €36.2m | €9.92m | 129.0 | 2025 |
| 4 | Dranco 9000 Ghent | €18.9m | €1.45m | €2.31m | 34.0 | 2025 |
| 5 | Lammertyn.Net 9120 Beveren-Kruibeke-Zwijndrecht | €5.83m | €10.0m | €3.11m | 57.4 | 2025 |
| 6 | ALL Industrial Cleaning 9042 Ghent | €4.59m | — | €1.07m | 16.4 | 2025 |
| 7 | Aqua JET Vlerick 9810 Nazareth-De Pinte | €4.40m | — | €1.92m | 15.1 | 2025 |
| 8 | Seureca Industrial Water Services 9090 Merelbeke-Melle | €3.01m | €2.04m | €2.39m | 12.2 | 2025 |
| 9 | Aquamella 9090 Merelbeke-Melle | €2.81m | €5.47m | 777,221 € | 30.5 | 2025 |
| 10 | Moens Bart 9200 Dendermonde | €2.52m | — | 686,284 € | 8.6 | 2025 |
| 11 | Foster M&O 9130 Beveren | €2.50m | — | −350,098 € | — | 2025 |
| 12 | Van Parys - Stepman 9810 Nazareth-De Pinte | €2.41m | — | €1.06m | 15.1 | 2025 |
| 13 | De Seranno Cleaning 9940 Evergem | €1.95m | — | 584,867 € | 9.5 | 2026 |
| 14 | De Vleminck Jan 9400 Ninove | €1.62m | — | 434,145 € | 13.1 | 2025 |
| 15 | GLK Recycling 9770 Kruisem | €1.49m | — | 532,693 € | 4.2 | 2025 |
| 16 | Seico 9230 Wetteren | €1.48m | — | 343,385 € | 5.2 | 2025 |
| 17 | Wase Ontstopping 9120 Beveren-Kruibeke-Zwijndrecht | €1.26m | — | 217,735 € | — | 2025 |
| 18 | Ruimdienst van der Straeten 9570 Lierde | €1.25m | — | €1.11m | 4.0 | 2025 |
| 19 | RVM Cleaning 9170 Sint-Gillis-Waas | €1.22m | — | 142,443 € | 0.7 | 2025 |
| 20 | M&C Cleaning 9990 Maldegem | 795,915 € | — | 289,241 € | 7.7 | 2025 |
| 21 | Couvent L. 9770 Kruisem | 754,452 € | — | 89,888 € | — | 2025 |
| 22 | Rackunits 9420 Erpe-Mere | 641,447 € | — | 390,232 € | 3.3 | 2025 |
| 23 | Ruim- en ontstoppingsdienst Hemerijckx 9400 Ninove | 606,139 € | — | 66,718 € | — | 2025 |
| 24 | Clean Service 9450 Haaltert | 451,399 € | — | 333,694 € | — | 2025 |
| 25 | Sobry ontstoppingen 9160 Lokeren | 376,584 € | — | 205,278 € | 1.7 | 2025 |
| 26 | Ontstoppingsdienst Doens & Zonen 9700 Oudenaarde | 275,324 € | — | 227,244 € | — | 2025 |
| 27 | Ruimdienst Van Hove 9850 Deinze | 221,701 € | — | 105,207 € | — | 2024 |
| 28 | Phromac 9960 Assenede | 185,585 € | — | −24,626 € | — | 2025 |
| 29 | VDVK Ontstoppingen 9100 Sint-Niklaas | 175,923 € | — | −14,431 € | 3.8 | 2025 |
| 30 | Ruimdienst Bauwens 9991 Maldegem | 85,118 € | — | 45,376 € | — | 2025 |
| 31 | Rombaut 9260 Wichelen | 67,127 € | — | 54,905 € | — | 2025 |
| 32 | Roegiers Consulting 9160 Lokeren | 65,343 € | — | 2,957 € | — | 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.
“—”: 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 activities1,004
- 02 Forestry and logging43
- 08 Other mining and quarrying13
- 10 Manufacture of food products795
- 11 Manufacture of beverages98
- 13 Manufacture of textiles175
- 14 Manufacture of wearing apparel79
- 15 Manufacture of leather and related products of other materials16
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials238
- 17 Manufacture of paper and paper products52
- 18 Printing and reproduction of recorded media325
- 20 Manufacture of chemicals and chemical products147
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations81
- 22 Manufacture of rubber and plastic products123
- 23 Manufacture of other non-metallic mineral products232
- 24 Manufacture of basic metals56
- 25 Manufacture of fabricated metal products, except machinery and equipment883
- 26 Manufacture of computer, electronic and optical products95
- 27 Manufacture of electrical equipment107
- 28 Manufacture of machinery and equipment n.e.c.255
- 29 Manufacture of motor vehicles, trailers and semi-trailers64
- 30 Manufacture of other transport equipment25
- 31 Manufacture of furniture228
- 32 Other manufacturing164
- 33 Repair, maintenance and installation of machinery and equipment519
- 35 Electricity, gas, steam and air conditioning supply131
- 36 Water collection, treatment and supply12
- 38 Waste collection, recovery and disposal activities138
- 39 Remediation activities and other waste management service activities32
- 41 Construction of residential and non-residential buildings2,555
- 42 Civil engineering796
- 43 Specialised construction activities7,921
- 46 Wholesale trade4,896
- 47 Retail trade5,351
- 49 Land transport and transport via pipelines1,584
- 50 Water transport53
- 51 Air transport40
- 52 Warehousing, storage and support activities for transportation424
- 53 Postal and courier activities109
- 55 Accommodation383
- 56 Food and beverage service activities3,203
- 58 Publishing activities178
- 59 Motion picture, video and television programme production, sound recording and music publishing activities325
- 60 Programming, broadcasting, news agency and other content distribution activities35
- 61 Telecommunication49
- 62 Computer programming, consultancy and related activities4,087
- 63 Computing infrastructure, data processing, hosting and other information service activities515
- 64 Financial service activities, except insurance and pension funding4,362
- 65 Insurance, reinsurance and pension funding, except compulsory social security32
- 66 Activities auxiliary to financial services and insurance activities1,172
- 68 Real estate activities6,692
- 69 Legal and accounting activities2,828
- 70 Activities of head offices and management consultancy8,002
- 71 Architectural and engineering activities; technical testing and analysis2,350
- 72 Scientific research and development168
- 73 Activities of advertising, market research and public relations1,387
- 74 Other professional, scientific and technical activities736
- 75 Veterinary activities251
- 77 Rental and leasing activities493
- 78 Employment activities226
- 79 Travel agency, tour operator and other reservation service and related activities140
- 80 Investigation and security activities61
- 81 Services to buildings and landscape activities1,083
- 82 Office administrative, office support and other business support activities2,177
- 84 Public administration and defence; compulsory social security32
- 85 Education534
- 86 Human health activities5,696
- 87 Residential care activities132
- 88 Social work activities without accommodation183
- 90 Arts creation and performing arts activities461
- 91 Libraries, archives, museums and other cultural activities18
- 92 Gambling and betting activities33
- 93 Sports activities and amusement and recreation activities551
- 94 Activities of membership organisations107
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles635
- 96 Personal service activities847
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 company in Sewerage in East Flanders?
By total assets, it is T.W.Z. (€108.6m, financial year 2025).
How many companies in Sewerage in East Flanders are ranked?
32 out of 33 active companies in the sector with their registered office in the area: those whose latest accounts are less than 3 years old.
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.
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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.