Investigation and private security activities
351 Belgian companies whose main activity falls under NACE code 8001 have filed annual accounts. Their median solvency is 41.3% for financial year 2024.
Sector medians
Computed by IdonisDistribution across the sector's companies for financial year 2024: a quarter of companies sit below the 1st quartile, half below the median, three quarters below the 3rd quartile.
| Indicator | 1st quartile | Median | 3rd quartile | Companies |
|---|---|---|---|---|
| Solvency | 9.5% | 41.3% | 71.2% | 303 |
| Current ratio | 0.86 | 1.40 | 2.96 | 295 |
| ROE | -3.4% | 13.9% | 42.0% | 247 |
| Equity | 10,559 € | 71,027 € | 297,172 € | 307 |
| Total assets | 67,161 € | 206,476 € | 713,935 € | 307 |
| Net result | −8,510 € | 8,264 € | 48,420 € | 306 |
| Headcount (avg FTE) | 3.0 | 12.9 | 39.0 | 120 |
Medians computed by Idonis from annual accounts filed with the National Bank, all sizes combined. The same panel is the sector benchmark on every company page. Method
Largest companies: Investigation and private security activities
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 | Securitas 1831 Machelen (Brab.) | €215.8m | €369.4m | €45.3m | 4,594.8 | 2025 |
| 2 | G4S Secure Solutions 1000 Brussels | €109.6m | €187.6m | −€5.91m | 3,159.9 | 2025 |
| 3 | Verisure 1130 Brussels | €82.7m | €142.7m | €50.5m | 200.6 | 2025 |
| 4 | Protection Unit 4470 Saint-Georges-sur-Meuse | €64.6m | €145.8m | €1.07m | 2,196.9 | 2025 |
| 5 | Brink's Solutions Belgium 1702 Dilbeek | €54.7m | €65.7m | €4.49m | — | 2025 |
| 6 | Securitas Alert Services 1831 Machelen (Brab.) | €42.7m | €17.0m | €32.1m | 55.2 | 2025 |
| 7 | SERIS Security 1831 Machelen (Brab.) | €40.5m | €90.2m | €11.7m | 1,274.6 | 2025 |
| 8 | G4S Aviation Security 1000 Brussels | €38.2m | €94.6m | €19.3m | 1,664.8 | 2025 |
| 9 | Protection Unit Group 4031 Liège | €30.2m | €8.94m | €1.76m | 6.0 | 2025 |
| 10 | Loomis Belgium 1930 Zaventem | €22.6m | €20.5m | 850,790 € | 217.5 | 2025 |
| 11 | Alertis 8800 Roeselare | €14.1m | €21.8m | €6.73m | 120.8 | 2025 |
| 12 | Securitas Transport Aviation Security 1910 Kampenhout | €13.8m | €34.2m | €6.22m | 452.9 | 2025 |
| 13 | Seris Technology 3200 Aarschot | €12.5m | €35.1m | €3.70m | 148.1 | 2025 |
| 14 | TSA Safety Group 2060 Antwerp | €11.0m | — | €2.48m | 78.9 | 2025 |
| 15 | Oktopus 1050 Brussels | €11.0m | €10.6m | €2.81m | 58.0 | 2025 |
| 16 | G4S Secure Monitoring 1000 Brussels | €10.7m | €8.35m | €7.50m | 42.3 | 2025 |
| 17 | Cennox Cash Services 1800 Vilvoorde | €9.65m | €1.24m | €4.14m | 34.8 | 2025 |
| 18 | Tutela Novitas Defensio Security 9000 Ghent | €9.02m | €24.4m | 859,830 € | 404.3 | 2025 |
| 19 | High Security 1457 Walhain | €7.95m | €23.6m | 452,944 € | 353.0 | 2025 |
| 20 | Maat Security 3560 Lummen | €7.33m | €24.7m | 416,012 € | 386.4 | 2025 |
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Where are they based?
Municipalities with the most
- 1000 Brussels15
- 1050 Ixelles11
- 1070 Anderlecht6
- 1410 Waterloo6
- 1831 Machelen (Brab.) (Diegem)6
- 4000 Liège (Glain, Rocourt)6
- 1930 Zaventem (Nossegem)5
- 1160 Auderghem4
- 1730 Asse (Bekkerzeel, Kobbegem, Mollem)4
- 2170 Antwerp (Merksem)4
- 4020 Liège (Bressoux, Jupille-Sur-Meuse, Wandre)4
- 4470 Saint-Georges-sur-Meuse4
Related sectors
← The whole Investigation and security activities sector (NACE 80)
Frequently asked questions
How many Investigation and private security activities companies are there in Belgium?
351 Belgian companies whose main activity falls under NACE code 8001 (Investigation and private security activities) have filed annual accounts with the National Bank.
What is the median solvency in Investigation and private security activities?
For financial year 2024, median solvency (equity over total assets) is 41.3%. The middle half of companies lies between 9.5% and 71.2% (303 companies).
What is the largest company in Investigation and private security activities?
By total assets, it is Securitas (€215.8m, financial year 2025).
Where are Investigation and private security activities companies based?
The municipalities with the most: Brussels (15), Ixelles (11), Anderlecht (6).
Analyse companies in Investigation and private security activities
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 11 Nov 2026.