| 1 | GDBA | https://www.linkedin.com/company/gdbaprotects/ | United States | 605 | 119 | 19.67% |
| 2 | Avigilon | https://www.linkedin.com/company/avigilon/ | Canada | 607 | 94 | 15.49% |
| 3 | Fiducial Sécurité | https://www.linkedin.com/company/fiducial-sécurité/ | France | 604 | 90 | 14.90% |
| 4 | Chubb France | https://www.linkedin.com/company/chubb-france/ | France | 622 | 90 | 14.47% |
| 5 | Seris France | https://www.linkedin.com/company/seris-france/ | France | 691 | 87 | 12.59% |
| 6 | Pinkerton | https://www.linkedin.com/company/pinkerton-comprehensive-risk-management/ | United States | 1,283 | 150 | 11.69% |
| 7 | Security 101 | https://www.linkedin.com/company/security-101/ | United States | 594 | 65 | 10.94% |
| 8 | HID Global | https://www.linkedin.com/company/hidglobal/ | United States | 2,817 | 295 | 10.47% |
| 9 | ADT Commercial | https://www.linkedin.com/company/adtcommercial/ | United States | 1,135 | 118 | 10.40% |
| 10 | Allegion | https://www.linkedin.com/company/allegion/ | Ireland | 4,556 | 421 | 9.24% |
| 11 | Pelco | https://www.linkedin.com/company/pelco/ | United States | 615 | 56 | 9.11% |
| 12 | Onet Sécurité | https://www.linkedin.com/company/onet-sécurité/ | France | 609 | 53 | 8.70% |
| 13 | Goron | https://www.linkedin.com/company/goron-sas/ | France | 511 | 44 | 8.61% |
| 14 | Mitie Security | https://www.linkedin.com/company/mitie-security/ | United Kingdom | 641 | 55 | 8.58% |
| 15 | Professional Security | https://www.linkedin.com/company/professional-security/ | United Kingdom | 560 | 48 | 8.57% |
| 16 | Securitas Electronic Security | https://www.linkedin.com/company/securitas-electronic-security/ | United States | 1,007 | 86 | 8.54% |
| 17 | Securitas France | https://www.linkedin.com/company/securitas-france/ | France | 3,217 | 271 | 8.42% |
| 18 | Brosnan Risk Consultants | https://www.linkedin.com/company/brosnan-risk-consultants-ltd/ | United States | 836 | 69 | 8.25% |
| 19 | Protectim Security Services | https://www.linkedin.com/company/protectim-security-services/ | France | 606 | 50 | 8.25% |
| 20 | Convergint Technologies | https://www.linkedin.com/company/convergint/ | United States | 3,311 | 264 | 7.97% |
| 21 | Securitas Swiss | https://www.linkedin.com/company/securitas-ag-swiss-guarding-company/ | Switzerland | 1,401 | 106 | 7.57% |
| 22 | Stanley Security | https://www.linkedin.com/company/stanley-security-solutions/ | United States | 4,015 | 301 | 7.50% |
| 23 | Kingdom Services Group | https://www.linkedin.com/company/kingdomservicesgroup/ | United Kingdom | 512 | 38 | 7.42% |
| 24 | Avarn Security Sverige | https://www.linkedin.com/company/avarn-security/ | Sweden | 1,448 | 106 | 7.32% |
| 25 | Protectas | https://www.linkedin.com/company/protectas-sa/ | Switzerland | 982 | 70 | 7.13% |
| 26 | Gunnebo | https://www.linkedin.com/company/gunnebo/ | Sweden | 1,558 | 108 | 6.93% |
| 27 | CIS Security | https://www.linkedin.com/company/cis-security/ | United Kingdom | 514 | 35 | 6.81% |
| 28 | Securitas Group | https://www.linkedin.com/company/securitas-group/ | Sweden | 1,180 | 80 | 6.78% |
| 29 | Chubb | https://www.linkedin.com/company/chubb-fire-&-security/ | United Kingdom | 2,860 | 189 | 6.61% |
| 30 | Securitas Belgium | https://www.linkedin.com/company/securitas-belgium/ | Belgium | 1,367 | 89 | 6.51% |
| 31 | Axitea | https://www.linkedin.com/company/axitea-spa/ | Italy | 535 | 34 | 6.36% |
| 32 | Seris Group | https://www.linkedin.com/company/groupe-seris/ | France | 2,953 | 187 | 6.33% |
| 33 | Trigion | https://www.linkedin.com/company/trigion/ | Netherlands | 1,998 | 125 | 6.26% |
| 34 | DCSA | https://www.linkedin.com/company/dcsagov/ | United States | 800 | 49 | 6.13% |
| 35 | Corps Security | https://www.linkedin.com/company/corps-of-commissionaires-management-ltd/ | United Kingdom | 663 | 38 | 5.73% |
| 36 | Sunstates Security | https://www.linkedin.com/company/sunstates-security/ | United States | 859 | 48 | 5.59% |
| 37 | Securitas Portugal | https://www.linkedin.com/company/securitas-portugal/ | Portugal | 507 | 27 | 5.33% |
| 38 | An Garda Síochána | https://www.linkedin.com/company/an-garda-siochana/ | Ireland | 2,342 | 122 | 5.21% |
| 39 | MSA Security | https://www.linkedin.com/company/msa-security/ | United States | 582 | 30 | 5.15% |
| 40 | Securitas Seguridad España | https://www.linkedin.com/company/securitases/ | Spain | 2,694 | 138 | 5.12% |
| 41 | Secom | https://www.linkedin.com/company/secom-plc/ | United Kingdom | 642 | 31 | 4.83% |
| 42 | Rapiscan Systems | https://www.linkedin.com/company/rapiscan-systems/ | United States | 1,122 | 51 | 4.55% |
| 43 | Securitas Sverige | https://www.linkedin.com/company/securitas-sverige-ab/ | Sweden | 2,544 | 115 | 4.52% |
| 44 | Vector Security | https://www.linkedin.com/company/vector-security/ | United States | 1,437 | 64 | 4.45% |
| 45 | Paladin Security Group | https://www.linkedin.com/company/paladinsecuritygroup-ltd/ | Canada | 2,780 | 120 | 4.32% |
| 46 | Securecorp | https://www.linkedin.com/company/securecorp/ | Australia | 533 | 23 | 4.32% |
| 47 | DSI Security Services | https://www.linkedin.com/company/dsi-security-services/ | United States | 711 | 30 | 4.22% |
| 48 | UNDSS | https://www.linkedin.com/company/undss/ | United States | 868 | 36 | 4.15% |
| 49 | Guardia Civil | https://www.linkedin.com/company/cuer/ | Spain | 1,212 | 50 | 4.13% |
| 50 | CoventBridge Group | https://www.linkedin.com/company/coventbridge-group/ | United States | 514 | 21 | 4.09% |
| 51 | Prosegur | https://www.linkedin.com/company/prosegur/ | Spain | 32,920 | 1,339 | 4.07% |
| 52 | Strong Segurança | https://www.linkedin.com/company/strongcharon/ | Portugal | 841 | 34 | 4.04% |
| 53 | Wilson Security | https://www.linkedin.com/company/wilson-security/ | Australia | 1,549 | 62 | 4.00% |
| 54 | Metro One LPSG | https://www.linkedin.com/company/metro-one-lpsg/ | United States | 600 | 24 | 4.00% |
| 55 | Walden Security | https://www.linkedin.com/company/walden-security/ | United States | 1,547 | 60 | 3.88% |
| 56 | Securiguard Services | https://www.linkedin.com/company/securiguard/ | Canada | 829 | 32 | 3.86% |
| 57 | Olive Group | https://www.linkedin.com/company/olive-group/ | United States | 752 | 29 | 3.86% |
| 58 | Marksman Security Corporation | https://www.linkedin.com/company/marksman-security-corporation/ | United States | 676 | 26 | 3.85% |
| 59 | Paragon Systems | https://www.linkedin.com/company/paragon-systems-inc/ | United States | 1,771 | 67 | 3.78% |
| 60 | Seris Konsalnet | https://www.linkedin.com/company/seriskonsalnet/ | Poland | 558 | 21 | 3.76% |
| 61 | Bay Alarm Company | https://www.linkedin.com/company/bay-alarm-company/ | United States | 640 | 24 | 3.75% |
| 62 | Securitas UK | https://www.linkedin.com/company/securitasuk/ | United Kingdom | 3,010 | 107 | 3.55% |
| 63 | Sicuritalia | https://www.linkedin.com/company/sicuritalia-spa-/ | Italy | 2,427 | 86 | 3.54% |
| 64 | Paragon Security | https://www.linkedin.com/company/paragonsecurity/ | Canada | 1,494 | 52 | 3.48% |
| 65 | SSGC | https://www.linkedin.com/company/support-services-group-ltd/ | United Kingdom | 663 | 23 | 3.47% |
| 66 | Securitas Norge | https://www.linkedin.com/company/securitas-norge/ | Norway | 991 | 33 | 3.33% |
| 67 | G4S Compliance & Investigations | https://www.linkedin.com/company/g4s-compliance-investigations/ | United States | 752 | 25 | 3.32% |
| 68 | GardaWorld Federal Services | https://www.linkedin.com/company/garda-federal/ | United States | 1,179 | 39 | 3.31% |
| 69 | Sector Alarm | https://www.linkedin.com/company/sector-alarm/ | Norway | 607 | 20 | 3.29% |
| 70 | Signal 88 Security | https://www.linkedin.com/company/signal_88_franchise_group/ | United States | 1,004 | 33 | 3.29% |
| 71 | SERIS Belgium | https://www.linkedin.com/company/seris/ | Belgium | 982 | 32 | 3.26% |
| 72 | ICTS Europe | https://www.linkedin.com/company/icts-europe/ | France | 1,276 | 41 | 3.21% |
| 73 | The GEO Group | https://www.linkedin.com/company/the-geo-group-inc/ | United States | 4,961 | 157 | 3.16% |
| 74 | Inter-Con Security Systems | https://www.linkedin.com/company/interconsecurity/ | United States | 2,033 | 64 | 3.15% |
| 75 | Constellis | https://www.linkedin.com/company/constellis/ | United States | 6,322 | 198 | 3.13% |
| 76 | Security Industry Specialists | https://www.linkedin.com/company/security-industry-specialists-inc./ | United States | 2,044 | 63 | 3.08% |
| 77 | Axis Security Services | https://www.linkedin.com/company/axis-security-services/ | United Kingdom | 659 | 20 | 3.03% |
| 78 | Commissionaires Ottawa | https://www.linkedin.com/company/commissionaires-ottawa/ | Canada | 595 | 18 | 3.03% |
| 79 | Titan Security Group | https://www.linkedin.com/company/titan-security-group/ | United States | 540 | 16 | 2.96% |
| 80 | MSS Security | https://www.linkedin.com/company/mss-security/ | Australia | 1,653 | 48 | 2.90% |
| 81 | TSS | https://www.linkedin.com/company/tss-total-security-services-limited/ | United Kingdom | 867 | 25 | 2.88% |
| 82 | Andy Frain Services | https://www.linkedin.com/company/andy-frain-services/ | United States | 1,457 | 41 | 2.81% |
| 83 | UTC Fire & Security | https://www.linkedin.com/company/utc-fire-&-security/ | United States | 1,857 | 52 | 2.80% |
| 84 | Securitas Canada | https://www.linkedin.com/company/securitas-canada/ | Canada | 1,195 | 33 | 2.76% |
| 85 | ADT by TELUS | https://www.linkedin.com/company/adtbytelus/ | Canada | 526 | 14 | 2.66% |
| 86 | ADT | https://www.linkedin.com/company/adt/ | United States | 21,160 | 527 | 2.49% |
| 87 | First Coast Security | https://www.linkedin.com/company/first-coast-security/ | United States | 532 | 13 | 2.44% |
| 88 | Guardian Protection | https://www.linkedin.com/company/guardianprotection/ | United States | 697 | 17 | 2.44% |
| 89 | Securitas Germany | https://www.linkedin.com/company/securitas-deutschland/ | Germany | 618 | 15 | 2.43% |
| 90 | Triple Canopy | https://www.linkedin.com/company/triple-canopy/ | United States | 2,489 | 60 | 2.41% |
| 91 | Tyco | https://www.linkedin.com/company/tyco/ | Ireland | 18,397 | 441 | 2.40% |
| 92 | First Security Group | https://www.linkedin.com/company/first-security-group-llc/ | United States | 508 | 12 | 2.36% |
| 93 | Omniplex | https://www.linkedin.com/company/omniplex-world-services-corporation/ | United States | 730 | 17 | 2.33% |
| 94 | Esegur | https://www.linkedin.com/company/esegur/ | Portugal | 603 | 14 | 2.32% |
| 95 | 2045 | https://www.linkedin.com/company/2045---empresa-de-seguran-a-s-a/ | Portugal | 654 | 15 | 2.29% |
| 96 | Commissionaires Canada | https://www.linkedin.com/company/commissionaires-canada/ | Canada | 589 | 13 | 2.21% |
| 97 | Centerra Group | https://www.linkedin.com/company/centerra-group/ | United States | 644 | 14 | 2.17% |
| 98 | Academi | https://www.linkedin.com/company/academi/ | United States | 510 | 11 | 2.16% |
| 99 | Professional Security Consultants | https://www.linkedin.com/company/professional-security-consultants-inc-/ | United States | 562 | 12 | 2.14% |
| 100 | G4S | https://www.linkedin.com/company/g4s/ | United Kingdom | 75,070 | 1,592 | 2.12% |
| 101 | St. Moritz Security Services | https://www.linkedin.com/company/st-moritz-security-services-inc/ | United States | 630 | 13 | 2.06% |
| 102 | Allied Universal | https://www.linkedin.com/company/allied-universal/ | United States | 40,473 | 833 | 2.06% |
| 103 | Securitas Nederland | https://www.linkedin.com/company/securitas/ | Netherlands | 10,693 | 209 | 1.95% |
| 104 | HSS | https://www.linkedin.com/company/hss/ | United States | 2,247 | 41 | 1.82% |
| 105 | Per Mar Security Services | https://www.linkedin.com/company/per-mar-security-services/ | United States | 943 | 17 | 1.80% |
| 106 | Whelan Security | https://www.linkedin.com/company/whelan-security/ | United States | 2,369 | 39 | 1.65% |
| 107 | VSG | https://www.linkedin.com/company/vsg-vision-security-group/ | United Kingdom | 1,027 | 16 | 1.56% |
| 108 | Solid Security | https://www.linkedin.com/company/solid-security-sp-z-o-o-/ | Poland | 784 | 12 | 1.53% |
| 109 | Admiral Security Services | https://www.linkedin.com/company/admiral-security-services/ | United States | 1,139 | 17 | 1.49% |
| 110 | Nokas | https://www.linkedin.com/company/nokas-group/ | Norway | 839 | 12 | 1.43% |
| 111 | Securitas Critical Infrastructure Services | https://www.linkedin.com/company/scisusa/ | United States | 1,156 | 16 | 1.38% |
| 112 | Tyco Integrated Security | https://www.linkedin.com/company/tyco-integrated-security/ | United States | 2,518 | 30 | 1.19% |
| 113 | Securitas Security Services USA | https://www.linkedin.com/company/securitas-security-services-usa-inc/ | United States | 32,037 | 354 | 1.10% |
| 114 | Garda | https://www.linkedin.com/company/garda_2/ | Spain | 1,363 | 13 | 0.95% |
| 115 | Champion National Security | https://www.linkedin.com/company/champion-national-security/ | United States | 574 | 5 | 0.87% |
| 116 | SecurAmerica | https://www.linkedin.com/company/securamerica/ | United States | 1,051 | 9 | 0.86% |
| 117 | SNP Security | https://www.linkedin.com/company/snp-security/ | Australia | 611 | 5 | 0.82% |
| 118 | Summit Security Services | https://www.linkedin.com/company/summit-security-services-inc-/ | United States | 502 | 4 | 0.80% |
| 119 | U.S. Security Associates | https://www.linkedin.com/company/us-security-associates/ | United States | 4,341 | 33 | 0.76% |
| 120 | Grupo Ombuds | https://www.linkedin.com/company/ombuds-c-a.-de-seguridad-s.a./ | Spain | 540 | 4 | 0.74% |
| 121 | KeyPoint Government Solutions | https://www.linkedin.com/company/keypoint-government-solutions/ | United States | 690 | 5 | 0.72% |
| 122 | Protection 1 Security Solutions | https://www.linkedin.com/company/protection-one/ | United States | 1,664 | 12 | 0.72% |
| 123 | SOS Security | https://www.linkedin.com/company/sos-security-llc/ | United States | 1,389 | 9 | 0.65% |
| 124 | Akal Security | https://www.linkedin.com/company/akal-security/ | United States | 812 | 5 | 0.62% |
| 125 | Command Security Corporation | https://www.linkedin.com/company/commandsecuritycorporation/ | United States | 768 | 4 | 0.52% |
| 126 | Andrews International | https://www.linkedin.com/company/andrews-international/ | United States | 1,183 | 6 | 0.51% |
| 127 | AlliedBarton Security Services | https://www.linkedin.com/company/alliedbarton-security-services/ | United States | 5,948 | 23 | 0.39% |
| 128 | FJC Security Services | https://www.linkedin.com/company/fjc-security-services-inc-/ | United States | 1,035 | 3 | 0.29% |
| 129 | Universal Services of America | https://www.linkedin.com/company/universal-services-of-america/ | United States | 4,305 | 12 | 0.28% |
| 130 | Guardsmark | https://www.linkedin.com/company/guardsmark/ | United States | 1,497 | 4 | 0.27% |
| 131 | Wackenhut | https://www.linkedin.com/company/wackenhut/ | United States | 882 | 2 | 0.23% |
| 132 | Aegis | https://www.linkedin.com/company/aegis_2/ | United States | 681 | 0 | 0.00% |
