Best Security Services in South Australia
53 security services across South Australia, ranked on evidence rather than advertising.
The short answer
The best security services in South Australia, ranked on independent evidence rather than paid placement, are Prime Security Systems in Renmark (4.9 stars from 117 reviews, scored 87 out of 100), ASAP Security And Protection in Adelaide CBD (4.9 stars from 144 reviews, scored 85 out of 100), Great Southern Security in Goolwa (5.0 stars from 52 reviews, scored 85 out of 100), Adelaide Home Control in Adelaide CBD (5.0 stars from 61 reviews, scored 85 out of 100) and RiverTech Services in Renmark (4.9 stars from 75 reviews, scored 85 out of 100). 53 security services in South Australia 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
45 of 53 independently corroborated · 22 with a confirmed phone number · every check ↓
All 53 security services in SA
Ordered by evidence, then by closest match. How this works →
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Prime Security Systems
Renmark, SA
86.9/1004.9from 117 reviews- Independently corroborated
- Website live
- Phone number matches
- ABN confirmed
- Free quotes
- Offers a warranty
- Emergency callouts
ASAP Security And Protection
Adelaide CBD, SA
85.1/1004.9from 144 reviews- Website live
- Phone number matches
- Free quotes
- Emergency callouts
Great Southern Security
Goolwa, SA
84.5/1005.0from 52 reviews- Independently corroborated
- Website live
- Phone number matches
Adelaide Home Control
Adelaide CBD, SA
85.2/1005.0from 61 reviews- Independently corroborated
- Website live
- Phone number matches
- Trading since 2000
RiverTech Services
Renmark, SA
85.1/1004.9from 75 reviews- Independently corroborated
- Website live
- Phone number matches
Invision Home Theatre
Salisbury, SA
84.8/1004.8from 91 reviews- Independently corroborated
- Website live
- Phone number matches
- Free quotes
- Fixed price
MSE Alarms
Modbury, SA
82.5/1005.0from 33 reviews- Independently corroborated
- Website live
- Phone number matches
- Trading since 1989
- Offers a warranty
- Emergency callouts
Papworth Security
Noarlunga, SA
81.0/1005.0from 99 reviews- Independently corroborated
Level Electrical & Data Riverland
Renmark, SA
80.9/1004.6from 53 reviews- Independently corroborated
- Website live
- Phone number matches
- ABN confirmed
- Offers a warranty
- Emergency callouts
Clarke Security Pty Ltd
Noarlunga, SA
78.5/1004.8from 18 reviews- Independently corroborated
- Website live
- Phone number matches
- Trading since 1984
- Free quotes
- Offers a warranty
- Emergency callouts
ATG Security
Glenelg, SA
78.3/1005.0from 13 reviews- Independently corroborated
- Website live
- Phone number matches
- Free quotes
- Emergency callouts
SASA Group Pty Ltd
Adelaide CBD, SA
76.8/1004.5from 19 reviews- Independently corroborated
- Website live
- Phone number matches
Blu Sky Security Systems Adelaide
Renmark, SA
76.1/1004.9from 159 reviews- Independently corroborated
- Website live
AG Security Group
McLaren Vale, SA
76.3/1004.3from 26 reviews- Independently corroborated
- Website live
- Phone number matches
- Free quotes
- Emergency callouts
Australian Integrated Security
Elizabeth, SA
76.3/1004.9from 9 reviews- Independently corroborated
- Website live
- Phone number matches
KA Systems
Elizabeth, SA
76.2/1005.0from 8 reviews- Independently corroborated
- Website live
- Phone number matches
- Offers a warranty
Adelaide Security & Communications
Noarlunga, SA
75.7/1005.0from 7 reviews- Independently corroborated
- Website live
- Phone number matches
- Offers a warranty
- Emergency callouts
Camtek Security
Noarlunga, SA
75.1/1004.3from 15 reviews- Independently corroborated
- Website live
- Phone number matches
Infratec Security Systems Adelaide
Elizabeth, SA
73.4/1004.7from 30 reviews- Independently corroborated
Adelaide Metropolitan Security Pty Ltd
Woodville, SA
72.8/1004.7from 52 reviewsFort Knox Security Adelaide
Noarlunga, SA
72.7/1005.0from 98 reviews- Website live
- Trading since 1988
- Free quotes
- Fixed price
- Offers a warranty
- Emergency callouts
Adelaide Security Com Services
Adelaide CBD, SA
72.7/1004.2from 6 reviews- Independently corroborated
- Website live
- Phone number matches
- Trading since 1999
- Free quotes
- Emergency callouts
Commercial Security Solutions
Adelaide CBD, SA
72.5/1004.0from 8 reviews- Independently corroborated
- Website live
- Phone number matches
- ABN confirmed
Purple Pixel Security
Glenelg, SA
72.0/1005.0from 46 reviews- Independently corroborated
- Website live
NPB Security - Adelaide - South Australia
Adelaide CBD, SA
71.9/1004.3from 6 reviews- Independently corroborated
- Website live
- Phone number matches
- Trading since 2010
Ausiot Pty Ltd
Noarlunga, SA
70.4/1005.0from 64 reviews- Independently corroborated
Safehands Security Services
Elizabeth, SA
70.0/1004.9from 74 reviews- Independently corroborated
Eyre Peninsula Security
Port Lincoln, SA
69.7/1005.0from 1 review- Independently corroborated
- Website live
- Phone number matches
SASC Site Cameras
Adelaide CBD, SA
69.7/1005.0from 1 review- Independently corroborated
- Website live
- Phone number matches
Detex Security
Glenelg, SA
67.3/1005.0from 4 reviews- Independently corroborated
Net Security Wholesalers
Adelaide CBD, SA
65.1/1004.9from 11 reviews- Independently corroborated
- Website live
- Trading since 1998
First Security Response
Salisbury, SA
63.0/1004.1from 28 reviews- Independently corroborated
- Website live
- Trading since 2006
Total Gate & Door Automation
Noarlunga, SA
63.0/1003.9from 79 reviews- Independently corroborated
- Website live
ADT Security Adelaide
Gawler, SA
60.1/1002.3from 43 reviews- Independently corroborated
- Website live
- Offers a warranty
- Emergency callouts
Moonlight Electrical & Security PTY LTD
Elizabeth, SA
60.1/1004.7from 3 reviews- Independently corroborated
- Website live
Jim's Security Adelaide
Noarlunga, SA
60.1/1004.9from 123 reviews- Independently corroborated
skytechpro
Glenelg, SA
59.7/1005.0from 1 review- Independently corroborated
- Phone number matches
- Free quotes
Xtreme Security International
McLaren Vale, SA
59.4/1005.0from 2 reviews- Independently corroborated
- Website live
Guardall Security SA
Elizabeth, SA
58.5/1005.0from 4 reviews- Independently corroborated
Ness Corporation - Adelaide
Adelaide CBD, SA
55.1/1005.0from 6 reviews- Independently corroborated
- Website live
- Trading since 1992
- Offers a warranty
Blue Lake Security
Mount Gambier, SA
46.3/1005.0from 3 reviews- Independently corroborated
Precision Security & Communications Pty Ltd
Mount Gambier, SA
44.5/1004.5from 2 reviews- Independently corroborated
Nexus Security Services
Elizabeth, SA
43.4/1005.0from 1 review- Independently corroborated
Biometric Security Solutions Australia
Adelaide CBD, SA
42.8/1004.0from 1 review- Independently corroborated
Silvern Guardian Security Services Pty Ltd
Whyalla, SA
24.2/1003.0from 2 reviews- Independently corroborated
What we hold on these 53 businesses. Not the site-wide average — the actual list below.
- corroboration confirmed
- 85%corroboration confirmed45 of 5390% of 50 checked
- website confirmed reachable
- 58%website confirmed reachable31 of 5372% of 43 fetched
- phone number confirmed
- 42%phone number confirmed22 of 5369% of 32 compared
- ABN confirmed
- 6%ABN confirmed3 of 53
Security Services in other states
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.