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Private investigators in Australia
We list 43 private investigators across Australian cities and suburbs. Top suburbs: Sydney, Perth and Brisbane. Most open at 9 AM and close at 5 PM on weekdays.
43 businesses Checked October 2026
By suburb
Sydney 7Perth 5Brisbane 4Adelaide 3Hobart 3Parramatta 3Coffs Harbour 2Melbourne 2Preston 2Wollongong 1Epping 1Robina 1Marrickville 1Maroochydore 1Surfers Paradise 1Richmond 1Bankstown 1Frankston 1Southport 1Cairns 1Port Macquarie 1
BBananacoast Commercial Agency & InvestigationsPrivate investigator · Debt collecting6 Elbow St, Coffs HarbourFri 8:30 AM–5 PMWebsiteCCharlies Angels Consultants - Polygraph servicePolygraph service · Private investigator91 King William St, AdelaideMon–Wed 8 AM–6 PMThu 7:30 AM–6 PMSunWebsiteHHenderson Horrocks Risk ServicesPrivate investigator · Process serverU2/459 Morphett St, AdelaideMon–Fri 9 AM–5 PMSat–Sun ClosedWebsiteNNetwork InvestigationsPrivate investigator · Process server163 Campbell St, HobartMon–Fri 9 AM–5:30 PMSat–Sun ClosedWebsiteNNSI GlobalConsultant · Private investigatorLevel 4/85 George St, ParramattaMon 8 AM–8:30 PMSun 10 AM–4 PMSunWebsiteNNSW Private InvestigationsPrivate investigator · Process server9/110-116 Crown St, WollongongDaily Open 24 hours24/7WebsiteOozzifreelancers.est2025Title company · Computer service839 High St, EppingMon–Fri Open 24 hoursSat–Sun ClosedWebsitePPanoptic SolutionsSecurity service · ConsultantSte 1.1/328 Scottsdale Dr, RobinaThu–Fri Open 24 hoursWebsitePPrime Investigations SydneyLegal services · Business to business serviceSuite 1802/45 Clarence St, SydneyDaily 8:30 AM–7:30 PMSunWebsitePProtective GroupSecurity service · Computer security service388 George St, SydneyDaily Open 24 hours24/7WebsiteQQld Covert Private InvestigationsPrivate investigator · Computer security serviceLevel 19/10 Eagle St, BrisbaneThu 6 AM–9 PMFri 6 AM–7 PMWebsiteRRichardson & Wrench MarrickvilleReal estate agency · Private investigator218 Marrickville Rd, MarrickvilleMon–Fri 9 AM–5:30 PMSat–Sun ClosedWebsiteSSpousebustersPrivate investigator · Missing persons organization38 Pitt St, SydneyDaily Open 24 hours24/7WebsiteSSpousebustersPrivate investigator · Missing persons organization234/6, 50 St Georges Terrace, PerthMon Open 24 hoursWebsiteSSynergy Workplace InvestigationsConsultant · Private investigatorTower 2, Level 3, Suite 302/55 Plaza Parade, MaroochydoreMon–Fri 7 AM–7 PMSat 10 AM–5 PMWebsiteTTRU InvestigationsPrivate investigator · Process server108 St Georges Terrace, PerthDaily Open 24 hours24/7WebsiteUUSAU GroupSecurity service · Private investigatorGround Floor/470 St Kilda Rd, MelbourneMon Open 24 hoursSun Open 24 hoursSunWebsitePPrecise Investigation BrisbanePrivate investigatorLevel 38/71 Eagle St, BrisbaneDaily Open 24 hoursPrecise Investigation24/7WebsitePPrecise Investigation Gold CoastPrivate investigator13/50 Cavill Ave, Surfers ParadiseDaily Open 24 hoursPrecise Investigation24/7WebsitePPrecise Investigation MelbournePrivate investigatorLevel 8/90 Collins St, MelbourneDaily Open 24 hoursPrecise Investigation24/7WebsitePPrecise Investigation PerthPrivate investigatorLevel 27/44 St Georges Terrace, PerthDaily Open 24 hoursPrecise Investigation24/7WebsitePPrecise Investigation SydneyPrivate investigatorLevel 10/20 Martin Pl, SydneyDaily Open 24 hoursPrecise Investigation24/7Website
AAegis OutcomesPrivate investigatorLv 1, 17 Madden Grove, RichmondMon Open 24 hoursSun Open 24 hoursSunWebsite
AAlpha Investigation Services.Private investigator251 Stirling St, PerthMon Open 24 hoursSun Open 24 hoursSunWebsite