Ranking · Wallonia · NACE 26
Manufacture of computer, electronic and optical products: the largest employers in Wallonia
As of 13 Nov 2026, 110 companies in Manufacture of computer, electronic and optical products (NACE 26) in Wallonia report employees in recent accounts (financial years 2023 to 2026). The 10 largest employers account for 3,178.1 FTE, out of 4,488.9 for all of them; median headcount is 8.9 FTE. Ion Beam Applications leads with 1,010.3 FTE (financial year 2025).
Top 50 · Manufacture of computer, electronic and optical products · Wallonia
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 | Ion Beam Applications 1348 Ottignies-Louvain-la-Neuve | €709.9m | €439.7m | €195.5m | 1,010.3 | 2025 |
| 2 | Valeo Vision Belgique 7822 Ath | €84.2m | €94.7m | −€41.5m | 553.0 | 2025 |
| 3 | Thales Alenia Space Belgium 6032 Charleroi | €211.7m | €60.0m | €72.6m | 485.2 | 2025 |
| 4 | EVS 4102 Seraing | €268.5m | €188.1m | €193.8m | 442.7 | 2025 |
| 5 | Vesuvius Group 7011 Mons | €53.2m | €94.2m | €30.0m | 146.7 | 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 | Bemac 4432 Ans | €12.2m | €18.9m | €6.83m | 110.7 | 2025 |
| 9 | Euro Heat Pipes 1400 Nivelles | €18.5m | €4.67m | 962,421 € | 89.5 | 2025 |
| 10 | Advanced Mechanical and Optical Systems 4031 Liège | €13.8m | €34.9m | €4.52m | 76.9 | 2025 |
| 11 | HMS Industrial Networks 1400 Nivelles | €9.72m | €24.0m | €5.10m | 71.2 | 2025 |
| 12 | Euresys 4102 Seraing | €27.2m | €19.2m | €18.5m | 62.9 | 2025 |
| 13 | Dalemans S.A. 4350 Remicourt | €9.01m | €9.29m | €4.51m | 52.2 | 2025 |
| 14 | JEMA 1348 Ottignies-Louvain-la-Neuve | €11.2m | €15.7m | €4.26m | 50.4 | 2025 |
| 15 | Orthodyne 4432 Ans | €11.1m | €10.1m | €6.30m | 47.6 | 2025 |
| 16 | Ampacimon 4000 Liège | €11.1m | €3.64m | €8.70m | 38.9 | 2025 |
| 17 | SEE Telecom 1401 Nivelles | €12.7m | €16.8m | €2.96m | 38.4 | 2024 |
| 18 | Sensy 6040 Charleroi | €3.75m | — | 912,377 € | 38.3 | 2025 |
| 19 | intoPIX 1348 Ottignies-Louvain-la-Neuve | €15.7m | €6.26m | €10.2m | 38.0 | 2026 |
| 20 | Teledyne ICM 4821 Dison | €9.57m | €12.8m | €7.49m | 37.7 | 2025 |
| 21 | Jumo Automation 4700 Eupen | €7.51m | €7.80m | €6.60m | 37.4 | 2025 |
| 22 | Atelier Luxus 4920 Aywaille | €4.72m | — | €2.25m | 36.7 | 2025 |
| 23 | X-RIS 4102 Seraing | €10.8m | — | €4.23m | 32.0 | 2025 |
| 24 | e-peas 1348 Ottignies-Louvain-la-Neuve | €11.7m | — | €8.19m | 30.1 | 2025 |
| 25 | Mecalec SMD 4100 Seraing | €5.42m | — | €4.72m | 29.5 | 2025 |
| 26 | Thermibel 7110 La Louvière | €4.25m | — | €1.71m | 29.2 | 2025 |
| 27 | Uptime ICT 4460 Grâce-Hollogne | €5.88m | €15.8m | −€1.39m | 29.2 | 2025 |
| 28 | GM Association 1470 Genappe | €13.5m | — | €2.56m | 27.6 | 2025 |
| 29 | Logi + 6041 Charleroi | €7.37m | — | €2.59m | 27.5 | 2025 |
| 30 | Rochester Sensors 1300 Wavre | €4.33m | — | €2.47m | 27.0 | 2024 |
| 31 | IP Trade 4000 Liège | €21.8m | €10.4m | €19.2m | 22.0 | 2026 |
| 32 | NC+ 4841 Welkenraedt | €3.66m | — | €1.29m | 21.6 | 2025 |
| 33 | Alarmes Coquelet 7340 Colfontaine | €8.00m | — | €6.30m | 20.0 | 2025 |
| 34 | HIGH TECHNOLOGY SYSTEMS Assembly 4280 Hannut | €2.51m | €3.02m | 92,433 € | 19.9 | 2025 |
| 35 | Domintell 1400 Nivelles | €2.92m | — | 891,605 € | 19.6 | 2024 |
| 36 | ME Group Belgium 1480 Tubize | €7.80m | €7.99m | €2.96m | 18.8 | 2024 |
| 37 | Alterface Projects 1300 Wavre | €2.47m | — | €1.28m | 18.3 | 2025 |
| 38 | Optec 7080 Frameries | €6.38m | — | 307,380 € | 16.7 | 2025 |
| 39 | Sunrise 5101 Namur | €43.9m | — | €40.7m | 15.9 | 2025 |
| 40 | Teleste Belgium 4040 Herstal | €3.50m | — | €2.27m | 15.4 | 2025 |
| 41 | Lacroix Smart Lighting Belgium 4000 Liège | €2.93m | — | −€1.16m | 13.4 | 2025 |
| 42 | A.N.B. Rimex 4040 Herstal | €3.60m | — | €1.29m | 12.7 | 2025 |
| 43 | Widra 4821 Dison | €3.11m | — | €2.20m | 12.4 | 2025 |
| 44 | Cepya-Electronics 5330 Assesse | €3.70m | — | 500,333 € | 12.4 | 2024 |
| 45 | Alfano S.A. 1400 Nivelles | €2.09m | — | 944,287 € | 11.0 | 2025 |
| 46 | TSF Belgique 4432 Ans | €5.68m | — | €3.54m | 10.6 | 2025 |
| 47 | Serel Industrie 4432 Ans | €3.77m | — | €2.69m | 10.3 | 2025 |
| 48 | Vista Security 1420 Braine-l'Alleud | 793,467 € | — | 190,480 € | 10.3 | 2025 |
| 49 | Ingram Micro Services 7110 La Louvière | €6.61m | — | €5.66m | 10.2 | 2025 |
| 50 | AARDEX Group 4102 Seraing | €5.13m | — | €2.63m | 9.7 | 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.
Manufacture of computer, electronic and optical products across Belgium → All sectors · Wallonia →
Other sectors · Wallonia
- 01 Crop and animal production, hunting and related service activities780
- 02 Forestry and logging194
- 08 Other mining and quarrying77
- 10 Manufacture of food products965
- 11 Manufacture of beverages98
- 13 Manufacture of textiles80
- 14 Manufacture of wearing apparel32
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials221
- 17 Manufacture of paper and paper products44
- 18 Printing and reproduction of recorded media183
- 20 Manufacture of chemicals and chemical products154
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations70
- 22 Manufacture of rubber and plastic products140
- 23 Manufacture of other non-metallic mineral products267
- 24 Manufacture of basic metals97
- 25 Manufacture of fabricated metal products, except machinery and equipment863
- 27 Manufacture of electrical equipment94
- 28 Manufacture of machinery and equipment n.e.c.245
- 29 Manufacture of motor vehicles, trailers and semi-trailers62
- 30 Manufacture of other transport equipment32
- 31 Manufacture of furniture148
- 32 Other manufacturing184
- 33 Repair, maintenance and installation of machinery and equipment290
- 35 Electricity, gas, steam and air conditioning supply55
- 37 Sewerage34
- 38 Waste collection, recovery and disposal activities185
- 39 Remediation activities and other waste management service activities12
- 41 Construction of residential and non-residential buildings1,635
- 42 Civil engineering231
- 43 Specialised construction activities4,771
- 46 Wholesale trade3,107
- 47 Retail trade6,427
- 49 Land transport and transport via pipelines955
- 50 Water transport13
- 52 Warehousing, storage and support activities for transportation248
- 53 Postal and courier activities44
- 55 Accommodation497
- 56 Food and beverage service activities3,657
- 58 Publishing activities116
- 59 Motion picture, video and television programme production, sound recording and music publishing activities116
- 60 Programming, broadcasting, news agency and other content distribution activities19
- 61 Telecommunication45
- 62 Computer programming, consultancy and related activities855
- 63 Computing infrastructure, data processing, hosting and other information service activities56
- 64 Financial service activities, except insurance and pension funding460
- 65 Insurance, reinsurance and pension funding, except compulsory social security30
- 66 Activities auxiliary to financial services and insurance activities977
- 68 Real estate activities1,204
- 69 Legal and accounting activities1,756
- 70 Activities of head offices and management consultancy1,072
- 71 Architectural and engineering activities; technical testing and analysis709
- 72 Scientific research and development141
- 73 Activities of advertising, market research and public relations285
- 74 Other professional, scientific and technical activities118
- 75 Veterinary activities173
- 77 Rental and leasing activities148
- 78 Employment activities145
- 79 Travel agency, tour operator and other reservation service and related activities124
- 80 Investigation and security activities39
- 81 Services to buildings and landscape activities738
- 82 Office administrative, office support and other business support activities285
- 84 Public administration and defence; compulsory social security25
- 85 Education560
- 86 Human health activities1,817
- 87 Residential care activities621
- 88 Social work activities without accommodation415
- 90 Arts creation and performing arts activities144
- 91 Libraries, archives, museums and other cultural activities62
- 92 Gambling and betting activities27
- 93 Sports activities and amusement and recreation activities459
- 94 Activities of membership organisations223
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles524
- 96 Personal service activities823
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 is the largest employer in Manufacture of computer, electronic and optical products in Wallonia?
Among companies, Ion Beam Applications, with 1,010.3 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. 110 out of 218 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.
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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 13 Nov 2026.