Company lists · Data refreshed September 2026

Top 25 Investigative site organizations based in Australia

Name: Investigative site organizations based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 79 companies tracked

RevenueBase identified 79 investigative site organizations headquartered in Australia as of September 2026 and tracks 906 professional contacts across them, including 407 with verified work emails. Melbourne is the largest hub.

This list covers investigative site organizations headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

79Companies

906Contacts tracked

407Verified emails

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The 25 largest investigative site organizations based in Australia

Ranked by team size

Top 25 of 79 investigative site organizations based in Australia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to investigative site organizations: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Emeritus Research	Indirect evidence	Camberwell, AustraliaHQ checked Sep 20, 2026	51-200	109 contacts →
	Indirect evidence “Emeritus Research is an independent Clinical Research Centre based in Melbourne & Sydney, Australia.” Source: RevenueBase Database · checked Sep 20, 2026
2	Paratus Clinical	Indirect evidence	Chatswood, AustraliaHQ checked Sep 20, 2026	51-200	79 contacts →
	Indirect evidence “Founded in 2015, Paratus Clinical was established to meet the increasing need for efficient, cost effective and quality delivery of Clinical Trials within Australia.” Source: RevenueBase Database · checked Sep 20, 2026
3	Brooksight Investigations	Partial evidence	Gold Coast, AustraliaHQ checked Sep 20, 2026	51-200	39 contacts →
	Partial evidence “Brooksight Investigations are one of the most respected investigation teams operating throughout Australia.” Source: RevenueBase Database · checked Sep 20, 2026
4	George Clinical	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	501-1,000	37 contacts →
	Indirect evidence “George Clinical is a leading global clinical research organization founded in Asia-Pacific driven by scientific expertise and operational excellence.” Source: RevenueBase Database · checked Sep 20, 2026
5	Quantumcorp Australia	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	37 contacts →
	Partial evidence “Quantumcorp provides a full range of investigation services to insurers, self-insurers, insurance lawyers, claims management companies, and large employers.” Source: RevenueBase Database · checked Sep 20, 2026
6	EKAS	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	201-500	34 contacts →
	Indirect evidence “Servicing the Market Research Industry since 1971, Ekas is Australia's most experienced healthcare and consumer fieldwork agency.” Source: RevenueBase Database · checked Sep 20, 2026
7	Greenlight Clinical	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	32 contacts →
	Indirect evidence “GreenLight Clinical is a full-service Contract Research Organisation (CRO).” Source: RevenueBase Database · checked Sep 20, 2026
8	Mobius Medical	Indirect evidence	North Sydney, AustraliaHQ checked Sep 20, 2026	51-200	25 contacts →
	Indirect evidence “Mobius Medical is a boutique, full-service clinical research partner with operations in the United States, Australia, and New Zealand with staff based globally.” Source: RevenueBase Database · checked Sep 20, 2026
9	Southern Oncology Clinical Research Unit Socru	Partial evidence	Bedford Park, AustraliaHQ checked Sep 20, 2026	11-50	19 contacts →
	Partial evidence “Southern Oncology Clinical Research Unit (SOCRU) is a dedicated phase 1 private clinical research site in Adelaide, South Australia.” Source: RevenueBase Database · checked Sep 20, 2026
10	Central Pharmacy Logistics Australia	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Central Pharmacy Logistics (CPL) Australia is a licenced "Direct to Patient" Clinical Trials solutions service, supporting the decentralised model of Clinical Trials.” Source: RevenueBase Database · checked Sep 20, 2026
11	Linear Clinical Research LTD	Indirect evidence	Perth, AustraliaHQ checked Sep 20, 2026	201-500	17 contacts →
	Indirect evidence “As a world class leader, Linear Clinical Research (Linear) is a purpose built state-of-the-art, clinical trials facility operating out of QEII Medical Centre in Perth, Western…” Source: RevenueBase Database · checked Sep 20, 2026
12	Genesis Research Services PTY LTD	Indirect evidence	Broadmeadow, AustraliaHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Genesis Research Services Pty Ltd is an innovative Clinical Research Organisation located in Newcastle, NSW.” Source: RevenueBase Database · checked Sep 20, 2026
13	Datapharm Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Datapharm is Australia’s original independent full-service Contract Research Organisation (CRO), est.” Source: RevenueBase Database · checked Sep 20, 2026
14	Clinitrials	Indirect evidence	Perth Cbd, AustraliaHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Clinitrials is not your typical Clinical Research Organisation (CRO).” Source: RevenueBase Database · checked Sep 20, 2026
15	AVION	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “We are your full-service Contract Research Organisation (CRO) & advanced Imaging specialist partner for clinical trials and medical research.” Source: RevenueBase Database · checked Sep 20, 2026
16	Alithia Life Sciences	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Alithia Life Sciences is an Australian owned clinical research consultancy launched to support and assist pharmaceutical, biotechnology, device companies and institutional…” Source: RevenueBase Database · checked Sep 20, 2026
17	RDC Clinical	Indirect evidence	Fortitude Valley, AustraliaHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “RDC Clinical is a leading clinical research organisation (CRO) based in Brisbane, Australia, specialising in evidence-based trials for complementary medicines, dietary…” Source: RevenueBase Database · checked Sep 20, 2026
18	Cureos	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “CUREOS is a highly experienced clinical research team with an expanding group of locations around Australia and research partners throughout the Asia Pacific.” Source: RevenueBase Database · checked Sep 20, 2026
19	CHS Investigations	Partial evidence	Ringwood, AustraliaHQ checked Sep 20, 2026	1-10	7 contacts →
	Partial evidence “CHS Investigations is an established corporate investigation company operating nationally with our head office in Victoria.” Source: RevenueBase Database · checked Sep 20, 2026
20	AK Clinical Research	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Welcome to AK Clinical Research!” Source: RevenueBase Database · checked Sep 20, 2026
21	Ascend Clinical	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Ascend CRO is a full-service Contract Research Organization (CRO) headquartered in Australia serving all of Australasia.” Source: RevenueBase Database · checked Sep 20, 2026
22	Henderson Horrocks Risk Services	Partial evidence	Adelaide, AustraliaHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “Henderson Horrocks is a proudly SA owned and operated Investigations Firm.” Source: RevenueBase Database · checked Sep 20, 2026
23	Pacific Clinical Research Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “The PCRG Advantage: Pacific Clinical Research Group™ (PCRG) has 18 years of consistent success, with 94% of our clients achieving their primary objective – whether it be clinical…” Source: RevenueBase Database · checked Sep 20, 2026
24	Acceler8 Clinical Research ANZ PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Acceler8 Clinical Research is a global provider of biopharmaceutical services.” Source: RevenueBase Database · checked Sep 20, 2026
25	Research Path	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Research Path was developed out of a sensitivity to the landscape of limited grant funding with a mission to raise the bar on data quality and usability for software in…” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: investigative site organizations. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names investigative site organizations.
Partial evidence: Its own public description names part of investigative site organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investigative site organizations. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 79 investigative site organizations based in Australia

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Investigative site organizations based in Australia at a glance

As of Sep 20, 2026

44.9%Verified-email coverage

11.5Average contacts per company

11-50Median size (employees)

16.5%Largest-city concentration · Melbourne

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 79 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among investigative site organizations, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “investigative site organizations”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names investigative site organizations), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among investigative site organizations, and records with no verified work email. Companies headquartered outside Australia are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 407 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names investigative site organizations, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many investigative site organizations are there based in Australia?

RevenueBase identified 79 investigative site organizations headquartered in Australia as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Emeritus Research, headquartered in Camberwell, tops this list with the largest team on record.

Which city has the most investigative site organizations?

Melbourne leads with 13 headquartered companies, followed by Sydney (12) and Brisbane (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 407 verified decision-maker contacts tracked across these 79 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.