Ranking · Flanders · NACE 80
Investigation and security activities: the largest employers in Flanders
As of 14 Nov 2026, 78 companies in Investigation and security activities (NACE 80) in Flanders report employees in recent accounts (financial years 2023 to 2026). The 10 largest employers account for 7,875.7 FTE, out of 8,797.2 for all of them; median headcount is 6.5 FTE. Securitas leads with 4,594.8 FTE (financial year 2025).
Top 50 · Investigation and security activities · Flanders
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 | Securitas 1831 Machelen (Brab.) | €215.8m | €369.4m | €45.3m | 4,594.8 | 2025 |
| 2 | SERIS Security 1831 Machelen (Brab.) | €40.5m | €90.2m | €11.7m | 1,274.6 | 2025 |
| 3 | Securitas Transport Aviation Security 1910 Kampenhout | €13.8m | €34.2m | €6.22m | 452.9 | 2025 |
| 4 | Tutela Novitas Defensio Security 9000 Ghent | €9.02m | €24.4m | 859,830 € | 404.3 | 2025 |
| 5 | Maat Security 3560 Lummen | €7.33m | €24.7m | 416,012 € | 386.4 | 2025 |
| 6 | Loomis Belgium 1930 Zaventem | €22.6m | €20.5m | 850,790 € | 217.5 | 2025 |
| 7 | Torann 2000 Antwerp | €4.00m | €9.40m | 403,093 € | 165.1 | 2025 |
| 8 | Seris Technology 3200 Aarschot | €12.5m | €35.1m | €3.70m | 148.1 | 2025 |
| 9 | Alertis 8800 Roeselare | €14.1m | €21.8m | €6.73m | 120.8 | 2025 |
| 10 | Security Masters 2170 Antwerp | €2.38m | €8.07m | 606,292 € | 111.2 | 2025 |
| 11 | Protection Unit Flanders 2950 Kapellen | €2.43m | — | 240,246 € | 89.7 | 2025 |
| 12 | TSA Safety Group 2060 Antwerp | €11.0m | — | €2.48m | 78.9 | 2025 |
| 13 | International Consultants on Targeted Security-Belgium 1930 Zaventem | 561,161 € | €3.61m | −€5.04m | 64.7 | 2023 |
| 14 | Securitas Alert Services 1831 Machelen (Brab.) | €42.7m | €17.0m | €32.1m | 55.2 | 2025 |
| 15 | High Security Solutions 2550 Kontich | €1.58m | — | 14,224 € | 50.4 | 2025 |
| 16 | Welcome! 1831 Machelen (Brab.) | 611,869 € | €2.47m | −€2.06m | 49.1 | 2025 |
| 17 | Falck Fire Services BE 2030 Antwerp | €1.83m | — | €1.11m | 41.6 | 2025 |
| 18 | M-Protection Security 3511 Hasselt | 227,578 € | — | 80,009 € | 36.6 | 2025 |
| 19 | Cennox Cash Services 1800 Vilvoorde | €9.65m | €1.24m | €4.14m | 34.8 | 2025 |
| 20 | Mentor Worldwide Security Services 8020 Oostkamp | 894,108 € | — | 214,429 € | 34.3 | 2025 |
| 21 | K9 Detection Belgium 8490 Jabbeke | €1.34m | — | 798,430 € | 28.1 | 2025 |
| 22 | Securitas Events 1831 Machelen (Brab.) | 580,343 € | €2.62m | −642,904 € | 24.0 | 2025 |
| 23 | R & T Security 9630 Zwalm | €1.86m | — | €1.15m | 23.5 | 2025 |
| 24 | Securipro 3520 Zonhoven | 594,897 € | — | 227,640 € | 23.3 | 2025 |
| 25 | Obsin 2550 Kontich | 401,315 € | — | −190,848 € | 21.4 | 2025 |
| 26 | K.E. Projects 2930 Brasschaat | €1.91m | — | €1.39m | 21.3 | 2025 |
| 27 | PortEyes 2630 Aartselaar | €2.02m | €5.19m | 427,876 € | 19.8 | 2025 |
| 28 | Team Service Security 8020 Oostkamp | 432,667 € | — | −79,485 € | 19.0 | 2025 |
| 29 | RBC Belgie 2040 Antwerp | 983,012 € | €2.86m | −675,264 € | 17.6 | 2025 |
| 30 | Praxis Group 8501 Kortrijk | €1.84m | — | €1.37m | 16.9 | 2025 |
| 31 | M.A. Services 2018 Antwerp | 939,342 € | €1.73m | −158,525 € | 13.8 | 2025 |
| 32 | VestaGuard Security 8870 Izegem | 447,989 € | — | −67,357 € | 10.9 | 2025 |
| 33 | Professional Assistance & Security 9160 Lokeren | 538,227 € | — | 102,389 € | 10.8 | 2025 |
| 34 | Rustpunt 2940 Stabroek | €2.73m | — | 751,557 € | 10.2 | 2025 |
| 35 | KPMG Forensic 1930 Zaventem | €2.10m | €2.22m | 934,381 € | 9.7 | 2025 |
| 36 | Total Safety Systems 3590 Diepenbeek | €3.17m | €1.88m | €1.94m | 8.9 | 2025 |
| 37 | Mark2 Corporation Belgium bv 2370 Arendonk | 321,992 € | — | 45,000 € | 8.5 | 2025 |
| 38 | Féderation belge de l'industrie des technologies médicales a.s.b.l. 1853 Grimbergen | €1.08m | — | 651,384 € | 7.6 | 2025 |
| 39 | Close Protection Guard 9500 Geraardsbergen | 8,302 € | — | −106,744 € | 6.5 | 2025 |
| 40 | ASB Security 1820 Steenokkerzeel | 512,914 € | — | 390,481 € | 6.5 | 2025 |
| 41 | MD Group 2900 Schoten | 876,290 € | — | 327,092 € | 5.0 | 2025 |
| 42 | Alpha Security 3600 Genk | 159,803 € | — | −36,394 € | 4.7 | 2023 |
| 43 | KEY4CE Security 9800 Deinze | 803,184 € | — | 597,597 € | 4.5 | 2025 |
| 44 | Sentery 8020 Oostkamp | €1.34m | — | 356,083 € | 4.4 | 2025 |
| 45 | EBS-Shield 3930 Hamont-Achel | 284,776 € | — | 113,010 € | 4.0 | 2025 |
| 46 | RDW Security 2560 Nijlen | 153,323 € | — | 44,460 € | 3.8 | 2025 |
| 47 | United Security Services 1804 Zemst | 83,811 € | — | −73,270 € | 3.7 | 2024 |
| 48 | Vision Security 3200 Aarschot | 34,217 € | — | −50,399 € | 3.5 | 2024 |
| 49 | Sfinx Security 3570 Alken | 111,203 € | — | 4,963 € | 3.5 | 2025 |
| 50 | DEKRA Private Investigations 1930 Zaventem | 795,774 € | 362,471 € | 73,381 € | 3.4 | 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.
Investigation and security activities across Belgium → All sectors · Flanders →
Other sectors · Flanders
- 01 Crop and animal production, hunting and related service activities1,948
- 02 Forestry and logging64
- 03 Fishing and aquaculture60
- 08 Other mining and quarrying41
- 10 Manufacture of food products2,131
- 11 Manufacture of beverages152
- 12 Manufacture of tobacco products15
- 13 Manufacture of textiles422
- 14 Manufacture of wearing apparel128
- 15 Manufacture of leather and related products of other materials22
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials497
- 17 Manufacture of paper and paper products150
- 18 Printing and reproduction of recorded media466
- 19 Manufacture of coke and refined petroleum products11
- 20 Manufacture of chemicals and chemical products365
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations72
- 22 Manufacture of rubber and plastic products373
- 23 Manufacture of other non-metallic mineral products564
- 24 Manufacture of basic metals153
- 25 Manufacture of fabricated metal products, except machinery and equipment2,058
- 26 Manufacture of computer, electronic and optical products239
- 27 Manufacture of electrical equipment229
- 28 Manufacture of machinery and equipment n.e.c.652
- 29 Manufacture of motor vehicles, trailers and semi-trailers183
- 30 Manufacture of other transport equipment60
- 31 Manufacture of furniture513
- 32 Other manufacturing416
- 33 Repair, maintenance and installation of machinery and equipment708
- 35 Electricity, gas, steam and air conditioning supply108
- 36 Water collection, treatment and supply15
- 37 Sewerage72
- 38 Waste collection, recovery and disposal activities378
- 39 Remediation activities and other waste management service activities40
- 41 Construction of residential and non-residential buildings3,494
- 42 Civil engineering943
- 43 Specialised construction activities10,807
- 46 Wholesale trade10,015
- 47 Retail trade11,712
- 49 Land transport and transport via pipelines3,118
- 50 Water transport118
- 51 Air transport32
- 52 Warehousing, storage and support activities for transportation1,021
- 53 Postal and courier activities175
- 55 Accommodation896
- 56 Food and beverage service activities8,664
- 58 Publishing activities231
- 59 Motion picture, video and television programme production, sound recording and music publishing activities290
- 60 Programming, broadcasting, news agency and other content distribution activities25
- 61 Telecommunication84
- 62 Computer programming, consultancy and related activities3,117
- 63 Computing infrastructure, data processing, hosting and other information service activities218
- 64 Financial service activities, except insurance and pension funding2,369
- 65 Insurance, reinsurance and pension funding, except compulsory social security31
- 66 Activities auxiliary to financial services and insurance activities1,957
- 68 Real estate activities2,915
- 69 Legal and accounting activities3,058
- 70 Activities of head offices and management consultancy2,567
- 71 Architectural and engineering activities; technical testing and analysis1,838
- 72 Scientific research and development176
- 73 Activities of advertising, market research and public relations813
- 74 Other professional, scientific and technical activities314
- 75 Veterinary activities326
- 77 Rental and leasing activities509
- 78 Employment activities422
- 79 Travel agency, tour operator and other reservation service and related activities270
- 81 Services to buildings and landscape activities1,730
- 82 Office administrative, office support and other business support activities776
- 84 Public administration and defence; compulsory social security39
- 85 Education549
- 86 Human health activities3,160
- 87 Residential care activities516
- 88 Social work activities without accommodation763
- 90 Arts creation and performing arts activities306
- 91 Libraries, archives, museums and other cultural activities57
- 92 Gambling and betting activities56
- 93 Sports activities and amusement and recreation activities854
- 94 Activities of membership organisations282
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles984
- 96 Personal service activities1,624
Municipalities with the most companies in the sector · Flanders
- 1831 Machelen (Brab.) (Diegem)7
- 2000 Antwerp6
- 2900 Schoten6
- 1930 Zaventem (Nossegem)5
- 2550 Kontich (Waarloos)5
- 9190 Stekene (Kemzeke)5
- 1730 Asse (Bekkerzeel, Kobbegem, Mollem)4
- 1800 Vilvoorde (Peutie)4
- 2170 Antwerp (Merksem)4
- 2260 Westerlo (Oevel, Tongerlo, Zoerle-Parwijs)4
- 2610 Antwerp (Wilrijk)4
- 2950 Kapellen4
Frequently asked questions
Which is the largest employer in Investigation and security activities in Flanders?
Among companies, Securitas, with 4,594.8 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. 78 out of 308 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 14 Nov 2026.