| Community Police | African Blood Brotherhood | Secret underground cadre organization that coordinated armed resistance during the 1921 Tulsa pogrom | en.wikipedia.org/wiki/African_Blood_Brothe... | |
| Community Police | Deacons for Defense and Justice | Historical armed civil rights self-defense group that organized tactical community protection patrols | en.wikipedia.org/wiki/Deacons_for_Defense_... | |
| Corporate Security | Allied Universal / G4S | Largest provider of private security guards in the world (800,000+) | aus.com | @allieduniversal |
| Community Police | Volunteers In Police Service | Volunteer police | theiacp.org/projects/volunteers-in-police-... | |
| Corporate Security | Pinkerton | Historical private detective agency expanding into global corporate risk management | pinkerton.com | @Pinkerton |
| Corporate Security | Talon Expeditionary Services | Security contractor providing specialized tactical advisers, crisis planning, and corporate risk mitigation | talonexpeditionaryservices.com | |
| Maritime Security | Trident Group | US firm staffed by special operations veterans specializing in cruise line consulting and port assessments | gotridentgroup.com | @GoTridentGroup |
| Corporate Security | Control Risks | Global risk consultancy focused on threat intelligence, risk mitigation, and crisis management | controlrisks.com | @Control_Risks |
| Corporate Security | GardaWorld | Large global security provider offering physical asset protection, tactical logistics, and convoy escorts | garda.com | @GardaWorld |
| Corporate Security | G4S Risk Management | Specialized high-risk division of Allied Universal securing fixed infrastructure and pipelines | g4s.com | @AlliedUniversal |
| Corporate Security | Olive Group | Subsidiary of Constellis specializing in fixed infrastructure defense for Middle Eastern energy projects | constellis.com | @Constellis |
| Corporate Security | Hart International | Risk management firm providing security architecture and close protection in post-conflict zones | hartinternational.com | @HartIntRisk |
| Maritime Security | Ambrey | Maritime security provider supplying armed transit security teams and real-time marine threat tracking | ambrey.com | @AmbreyRM |
| Maritime Security | EOS Risk Group | Maritime and corporate security firm delivering asset protection and piracy countermeasures | eosrisk.com | @EosRisk |
| Maritime Security | MAST | Specialized maritime firm offering yacht and commercial fleet transit security and surveillance | mast-security.com | @Mast_Security |
| Community Police | Fidelity Services Group | Large-scale armed response and cash asset protection across South Africa | fidelity-services.com | @Fidelity_Secure |
| Community Police | Vision Tactical | High-visibility urban tactical patrols and rapid intervention in South Africa | visiontactical.co.za | @A911Vision |
| Maritime Security | Vetus Schola | Specialized maritime protection and risk management operating in South Africa | vetusschola.co.za | |
| Community Police | Marshall Security | Regional tactical deployment and neighborhood tracking in South Africa | marshallsecurity.co.za | @marshall_sec |
| Community Police | 24-7 Security | Regional tactical intervention and perimeter protection in South Africa | 24-7security.co.za | @247SecServices |
| Community Police | Atlas Security | Residential and commercial monitoring networks in South Africa | atlas24.co.za | @AtlasSecurity |
| Corporate Security | Omega Risk Solutions | Commercial guarding and physical security engineering in South Africa | omegarisk.com | |
| Community Police | Divergent Ops | Farm protection and regional crime combatting in South Africa; operations in Nelspruit, White River, and Barberton | divergent-ops.co.za | |
| Community Police | SRS Security | Discrete investigations and close protection details in South Africa | srssecurity.co.za | |