Best Security Services in Sydney
22 businesses in Sydney, NSW, ordered by the evidence we hold on each one rather than by who paid.
The short answer
The best security services in Sydney, NSW, ranked on independent evidence rather than paid placement, are Aladen Security ® in Sydney CBD (4.9 stars from 136 reviews, scored 88 out of 100), Premium Solutions (Formerly PSG) in Sydney CBD (5.0 stars from 300 reviews, scored 77 out of 100), Nestor Security in Sydney CBD (5.0 stars from 101 reviews, scored 75 out of 100), Oz Smart Things in Sydney CBD (4.6 stars from 178 reviews, scored 73 out of 100) and Pacific Security Technology in Liverpool (4.8 stars from 83 reviews, scored 76 out of 100). 22 security services in Sydney, NSW are listed in total. Placement cannot be bought.
Verified 4 October 2026. Every listing is checked the same way, and a check that has not run is shown as a blank, not a pass. How we rank
11 of 22 independently corroborated · 2 with a confirmed phone number · every check ↓
All 22 security services in Sydney
Ordered by evidence, then by closest match. How this works →
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Aladen Security ®
Sydney CBD, NSW
87.5/1004.9from 136 reviews- Independently corroborated
- Website live
- Phone number matches
- Offers a warranty
Premium Solutions (Formerly PSG)
Sydney CBD, NSW
76.8/1005.0from 300 reviews- Website live
- ABN confirmed
- Trading since 2017
Nestor Security
Sydney CBD, NSW
75.4/1005.0from 101 reviews- Independently corroborated
- Website live
- Offers a warranty
Oz Smart Things
Sydney CBD, NSW
73.1/1004.6from 178 reviews- Independently corroborated
- Website live
- Offers a warranty
Pacific Security Technology
Liverpool, NSW
75.6/1004.8from 83 reviews- ABN confirmed
Kastle Systems Australia
Lane Cove, NSW
71.8/1005.0from 22 reviews- ABN confirmed
Auzwide Services - Security & Cleaning
Sydney CBD, NSW
69.0/1005.0from 24 reviews- Independently corroborated
- Website live
Pinnacle Protection
Sydney CBD, NSW
67.7/1005.0from 18 reviews- Independently corroborated
- Website live
- Offers a warranty
- Emergency callouts
Bosch Security Alarm System
Sydney CBD, NSW
69.4/1004.5from 14 reviews- Independently corroborated
- Website live
- Phone number matches
- Offers a warranty
M W Electronics ( M W Centre Pty Ltd)
Silverwater, NSW
67.9/1004.7from 13 reviewsSouthern Cross Group Services
Wetherill Park, NSW
68.8/1004.3from 18 reviews- ABN confirmed
Bells Access Control Services
Sydney CBD, NSW
63.4/1004.4from 14 reviews- Independently corroborated
- Website live
Yates Security Solutions
Sydney CBD, NSW
61.8/1004.0from 21 reviews- Independently corroborated
- Website live
Security Guards Sydney
Sydney CBD, NSW
57.3/1003.7from 3 reviews- Independently corroborated
- Website live
What we hold on these 22 businesses. Not the site-wide average — the actual list below.
- corroboration confirmed
- 50%corroboration confirmed11 of 2279% of 14 checked
- website confirmed reachable
- 55%website confirmed reachable12 of 2292% of 13 fetched
- phone number confirmed
- 9%phone number confirmed2 of 2217% of 12 compared
- ABN confirmed
- 23%ABN confirmed5 of 22
Other trades in Sydney
Looking wider? All security services in NSW →
Security Services elsewhere
Locations with at least 5 security services.
Nobody on this page paid to be here
There is no advertising product, no sponsored slot and no way to buy a position. The order comes from the checks described on the method page, applied identically in every category and every location.