Manufacture of computer, electronic and optical products: highest revenue in Wallonia
As of 14 Nov 2026, 38 companies in Manufacture of computer, electronic and optical products (NACE 26) in Wallonia publish their revenue in recent accounts (financial years 2024 to 2026). The top 10 account for €1.04bn, out of €1.23bn for all of them; median revenue is €9.72m. Ion Beam Applications leads with €439.7m (financial year 2025).
Top 38 · Manufacture of computer, electronic and optical products · Wallonia
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Ion Beam Applications 1348 Ottignies-Louvain-la-Neuve | €709.9m | €439.7m | €195.5m | 1,010.3 | 2025 |
| 2 | EVS 4102 Seraing | €268.5m | €188.1m | €193.8m | 442.7 | 2025 |
| 3 | Valeo Vision Belgique 7822 Ath | €84.2m | €94.7m | −€41.5m | 553.0 | 2025 |
| 4 | Vesuvius Group 7011 Mons | €53.2m | €94.2m | €30.0m | 146.7 | 2025 |
| 5 | Thales Alenia Space Belgium 6032 Charleroi | €211.7m | €60.0m | €72.6m | 485.2 | 2025 |
| 6 | Rolls-Royce Solutions Liège 4460 Grâce-Hollogne | €66.7m | €47.9m | €18.3m | 139.1 | 2025 |
| 7 | Societe Liegeoise de Micro - Informatique 4432 Ans | €13.2m | €37.2m | €1.39m | 124.0 | 2025 |
| 8 | Advanced Mechanical and Optical Systems 4031 Liège | €13.8m | €34.9m | €4.52m | 76.9 | 2025 |
| 9 | HMS Industrial Networks 1400 Nivelles | €9.72m | €24.0m | €5.10m | 71.2 | 2025 |
| 10 | Euresys 4102 Seraing | €27.2m | €19.2m | €18.5m | 62.9 | 2025 |
| 11 | Bemac 4432 Ans | €12.2m | €18.9m | €6.83m | 110.7 | 2025 |
| 12 | SEE Telecom 1401 Nivelles | €12.7m | €16.8m | €2.96m | 38.4 | 2024 |
| 13 | Uptime ICT 4460 Grâce-Hollogne | €5.88m | €15.8m | −€1.39m | 29.2 | 2025 |
| 14 | JEMA 1348 Ottignies-Louvain-la-Neuve | €11.2m | €15.7m | €4.26m | 50.4 | 2025 |
| 15 | CEFALY Technology 4000 Liège | €4.85m | €14.0m | −€16.0m | 4.1 | 2025 |
| 16 | Teledyne ICM 4821 Dison | €9.57m | €12.8m | €7.49m | 37.7 | 2025 |
| 17 | Integrated Solutions Enterprise Europe 1410 Waterloo | €8.90m | €12.4m | €7.75m | 2.1 | 2025 |
| 18 | IP Trade 4000 Liège | €21.8m | €10.4m | €19.2m | 22.0 | 2026 |
| 19 | Orthodyne 4432 Ans | €11.1m | €10.1m | €6.30m | 47.6 | 2025 |
| 20 | Dalemans S.A. 4350 Remicourt | €9.01m | €9.29m | €4.51m | 52.2 | 2025 |
| 21 | Belgian Advanced Technology Systems 4031 Liège | €21.1m | €8.74m | €1.20m | 8.4 | 2025 |
| 22 | ME Group Belgium 1480 Tubize | €7.80m | €7.99m | €2.96m | 18.8 | 2024 |
| 23 | Jumo Automation 4700 Eupen | €7.51m | €7.80m | €6.60m | 37.4 | 2025 |
| 24 | intoPIX 1348 Ottignies-Louvain-la-Neuve | €15.7m | €6.26m | €10.2m | 38.0 | 2026 |
| 25 | Euro Heat Pipes 1400 Nivelles | €18.5m | €4.67m | 962,421 € | 89.5 | 2025 |
| 26 | Ampacimon 4000 Liège | €11.1m | €3.64m | €8.70m | 38.9 | 2025 |
| 27 | Polyrack Benelux 5380 Fernelmont | €1.18m | €3.36m | 900,681 € | 4.0 | 2025 |
| 28 | HIGH TECHNOLOGY SYSTEMS Assembly 4280 Hannut | €2.51m | €3.02m | 92,433 € | 19.9 | 2025 |
| 29 | Epslog 4000 Liège | €2.49m | €2.68m | €1.88m | 7.5 | 2025 |
| 30 | TIMi 7812 Ath | 817,691 € | 565,989 € | 473,113 € | 4.5 | 2025 |
| 31 | TRIENS emea 4280 Hannut | €1.18m | 506,542 € | −24,173 € | 0.8 | 2025 |
| 32 | Myocene 4020 Liège | €3.51m | 297,061 € | €1.33m | 4.0 | 2025 |
| 33 | Corsini 7110 La Louvière | 375,760 € | 207,823 € | 272,826 € | — | 2024 |
| 34 | Advance Neon 4317 Faimes | 341,988 € | 198,105 € | 23,453 € | 1.0 | 2025 |
| 35 | MBH, Manufacture Belge d’Horlogerie 1390 Grez-Doiceau | 151,340 € | 168,217 € | 24,532 € | — | 2025 |
| 36 | Watch-Maker 1360 Perwez | 104,480 € | 141,221 € | 35,087 € | — | 2025 |
| 37 | Belcam.ID 4683 Oupeye | 65,536 € | 62,698 € | 56,795 € | — | 2025 |
| 38 | OLIVIER Patrick 7603 Péruwelz | 80,883 € | 53,792 € | 79,143 € | — | 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. These are the revenue figures published in the annual accounts. Small companies (micro and abridged accounts) do not have to publish theirs: they do not appear in this ranking.
Manufacture of computer, electronic and optical products across Belgium → All sectors · Wallonia →
Other sectors · Wallonia
- 01 Crop and animal production, hunting and related service activities240
- 02 Forestry and logging49
- 08 Other mining and quarrying37
- 10 Manufacture of food products214
- 11 Manufacture of beverages37
- 13 Manufacture of textiles28
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials61
- 17 Manufacture of paper and paper products15
- 18 Printing and reproduction of recorded media47
- 20 Manufacture of chemicals and chemical products80
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations46
- 22 Manufacture of rubber and plastic products42
- 23 Manufacture of other non-metallic mineral products86
- 24 Manufacture of basic metals43
- 25 Manufacture of fabricated metal products, except machinery and equipment180
- 27 Manufacture of electrical equipment36
- 28 Manufacture of machinery and equipment n.e.c.71
- 29 Manufacture of motor vehicles, trailers and semi-trailers16
- 30 Manufacture of other transport equipment13
- 31 Manufacture of furniture26
- 32 Other manufacturing39
- 33 Repair, maintenance and installation of machinery and equipment53
- 35 Electricity, gas, steam and air conditioning supply64
- 37 Sewerage13
- 38 Waste collection, recovery and disposal activities64
- 41 Construction of residential and non-residential buildings401
- 42 Civil engineering77
- 43 Specialised construction activities959
- 46 Wholesale trade927
- 47 Retail trade1,359
- 49 Land transport and transport via pipelines246
- 52 Warehousing, storage and support activities for transportation104
- 53 Postal and courier activities19
- 55 Accommodation117
- 56 Food and beverage service activities565
- 58 Publishing activities38
- 59 Motion picture, video and television programme production, sound recording and music publishing activities53
- 61 Telecommunication18
- 62 Computer programming, consultancy and related activities309
- 63 Computing infrastructure, data processing, hosting and other information service activities31
- 64 Financial service activities, except insurance and pension funding321
- 66 Activities auxiliary to financial services and insurance activities127
- 68 Real estate activities852
- 69 Legal and accounting activities276
- 70 Activities of head offices and management consultancy642
- 71 Architectural and engineering activities; technical testing and analysis267
- 72 Scientific research and development36
- 73 Activities of advertising, market research and public relations111
- 74 Other professional, scientific and technical activities57
- 75 Veterinary activities39
- 77 Rental and leasing activities59
- 78 Employment activities39
- 79 Travel agency, tour operator and other reservation service and related activities32
- 80 Investigation and security activities15
- 81 Services to buildings and landscape activities144
- 82 Office administrative, office support and other business support activities180
- 84 Public administration and defence; compulsory social security13
- 85 Education314
- 86 Human health activities580
- 87 Residential care activities201
- 88 Social work activities without accommodation174
- 90 Arts creation and performing arts activities95
- 91 Libraries, archives, museums and other cultural activities20
- 92 Gambling and betting activities12
- 93 Sports activities and amusement and recreation activities118
- 94 Activities of membership organisations100
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles130
- 96 Personal service activities171
Municipalities with the most companies in the sector · Wallonia
- 1348 Ottignies-Louvain-la-Neuve (Louvain-La-Neuve)12
- 4000 Liège (Glain, Rocourt)9
- 1410 Waterloo8
- 1400 Nivelles (Monstreux)7
- 4102 Seraing (Ougrée)6
- 1300 Wavre (Limal)5
- 1420 Braine-l'Alleud5
- 4020 Liège (Bressoux, Jupille-Sur-Meuse, Wandre)5
- 4031 Liège (Angleur)5
- 4432 Ans (Alleur, Xhendremael)5
- 1435 Mont-Saint-Guibert (Corbais, Hévillers)4
- 4040 Herstal4
Frequently asked questions
Which company in Manufacture of computer, electronic and optical products in Wallonia has the highest revenue?
Ion Beam Applications, with €439.7m of published revenue (financial year 2025).
Why are some companies missing?
Small companies (micro and abridged accounts) do not have to publish their revenue: only the 38 that publish it, out of 218 companies in the sector in the area, are ranked.
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 · Wallonia
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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 14 Nov 2026.