Darwin, Northern Territory · October 2026 figures
Compare the top 10 security guard companies in Darwin, NT
MSA has the most reviews (28), and Adonai Protection Group the highest average (5.0 from 19 reviews). Adonai Protection Group lists the most opening hours (168 a week).
| Rank | Business | Rating | Reviews | Rating floor | Days open | Saturday | Sunday | Open late | Phone | Website |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Adonai Protection GroupStuart Park | 5.0 | 19 | Floor 4.62 | 7 | Yes | Yes | Yes | 1800 577 995 | adonaisecurity.com.au |
| 2 | Southern Cross ProtectionBerrimah | 5.0 | 7 | Floor 4.38 | 5 | No | No | No | 0401 776 229 | sxprotection.com.au |
| 3 | AJ Security DarwinDarwin | 5.0 | 6 | Floor 4.33 | 7 | Yes | Yes | Yes | 0478 250 999 | ajsecurity.net.au |
| 4 | NPG SecurityDarwin City | 5.0 | 6 | Floor 4.33 | 7 | Yes | Yes | Yes | 0452 079 090 | npgsecurity.com.au |
| 5 | NT DefendersWinnellie | 5.0 | 6 | Floor 4.33 | 5 | No | No | No | 1800 464 562 | ntdefenders.com.au |
| 6 | MSAWinnellie | 4.5 | 28 | Floor 4.19 | 5 | No | No | No | (08) 8947 4753 | ntsecuritygroup.com.au |
| 7 | RMI SecurityWinnellie | 4.3 | 6 | Floor 3.63 | 7 | Yes | Yes | Yes | 1800 764 732 | rmisecurity.com.au |
| 8 | Neptune NT Security ServicesWoolner | 3.5 | 22 | Floor 3.15 | 7 | Yes | Yes | Yes | 1300 167 513 | neptunent.com |
| 9 | Territory Protective Services Pty LtdDarwin City | 3.6 | 11 | Floor 3.10 | 7 | Yes | Yes | Yes | 0497 090 254 | territoryprotectiveservices.com |
| 10 | MSS SecurityDarwin City | 3.1 | 11 | Floor 2.60 | 5 | No | No | No | (08) 8995 0700 | msssecurity.com.au |
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Ratings and review counts are Google's, as listed in October 2026. Phone numbers, websites and opening hours are the ones each business lists. Nothing here is paid for or verified by Calso. How the ranking works.