Investigation and security activities: highest revenue in Wallonia
As of 14 Nov 2026, 15 companies in Investigation and security activities (NACE 80) in Wallonia publish their revenue in recent accounts (financial year 2025). The top 10 account for €211.7m, out of €211.9m for all of them; median revenue is 231,171 €. Protection Unit leads with €145.8m (financial year 2025).
Top 15 · Investigation and security activities · Wallonia
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Protection Unit 4470 Saint-Georges-sur-Meuse | €64.6m | €145.8m | €1.07m | 2,196.9 | 2025 |
| 2 | High Security 1457 Walhain | €7.95m | €23.6m | 452,944 € | 353.0 | 2025 |
| 3 | Liège Airport-Security 4460 Grâce-Hollogne | €4.12m | €15.5m | 61,500 € | 16.3 | 2025 |
| 4 | Protection Unit Events 4470 Saint-Georges-sur-Meuse | €5.30m | €15.5m | 469,784 € | 99.7 | 2025 |
| 5 | Protection Unit Group 4031 Liège | €30.2m | €8.94m | €1.76m | 6.0 | 2025 |
| 6 | Protection Unit Airport 4470 Saint-Georges-sur-Meuse | 897,102 € | €1.12m | 486,697 € | 19.0 | 2025 |
| 7 | Alliance Security 4020 Liège | €1.20m | 577,827 € | 195,950 € | 3.9 | 2025 |
| 8 | Management Security Productions 4671 Blegny | 600,492 € | 231,171 € | 577,023 € | — | 2025 |
| 9 | Unipole 6000 Charleroi | 283,049 € | 188,984 € | 172,328 € | — | 2025 |
| 10 | ABC Securite 6120 Ham-sur-Heure-Nalinnes | 70,669 € | 60,722 € | 57,481 € | — | 2025 |
| 11 | GESTICOR Olivier de BORMAN 1320 Beauvechain | 50,967 € | 55,237 € | 32,928 € | — | 2025 |
| 12 | Security Consultant and Trainer Decamps Christophe 7090 Braine-le-Comte | 22,426 € | 54,371 € | 13,674 € | — | 2025 |
| 13 | Jajc Signaleur 6200 Châtelet | 47,953 € | 30,663 € | 43,953 € | — | 2025 |
| 14 | Analyse - Recherche - Enquête - Formation en Assurances 4357 Donceel | 21,234 € | 26,619 € | 21,031 € | — | 2025 |
| 15 | Général Consulte et Accompagnement 5360 Hamois | 17,414 € | 18,853 € | −215,008 € | — | 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.
Investigation and security activities 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
- 26 Manufacture of computer, electronic and optical products38
- 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
- 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
- 4000 Liège (Glain, Rocourt)8
- 1410 Waterloo7
- 1480 Tubize (Clabecq, Oisquercq, Saintes)6
- 4470 Saint-Georges-sur-Meuse5
- 4020 Liège (Bressoux, Jupille-Sur-Meuse, Wandre)4
- 7110 La Louvière (Boussoit, Houdeng-Aimeries, Houdeng-Goegnies, …)4
- 1348 Ottignies-Louvain-la-Neuve (Louvain-La-Neuve)3
- 1390 Grez-Doiceau (Archennes, Biez, Bossut-Gottechain, …)3
- 6000 Charleroi3
- 6040 Charleroi (Jumet)3
- 1301 Wavre (Bierges)2
- 1370 Jodoigne (Dongelberg, Jauchelette, Jodoigne-Souveraine, …)2
Frequently asked questions
Which company in Investigation and security activities in Wallonia has the highest revenue?
Protection Unit, with €145.8m 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 15 that publish it, out of 145 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
Filter these companies by size, soundness and trend, follow them and get an alert when their accounts or publications change.
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.