Company lists · Data refreshed September 2026

Top 25 Corporate messaging agencies based in Australia

Name: Corporate messaging agencies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 815 companies tracked

RevenueBase identified 815 corporate messaging agencies headquartered in Australia as of September 2026 and tracks 6,376 professional contacts across them, including 2,378 with verified work emails. Sydney is the largest hub.

This list covers corporate messaging agencies 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 19, 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 19, 2026 86% judged on-target in blind review

815Companies

6,376Contacts tracked

2,378Verified emails

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The 25 largest corporate messaging agencies based in Australia

Ranked by team size

Top 25 of 815 corporate messaging agencies based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to corporate messaging agencies: 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	Jimjam Ideas	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	n/a	621 contacts →
	Indirect evidence “JIMJAM Ideas is an award winning integrated communications agency that believes CONNECTED IDEAS to be the key to powerful and transformative marketing.” Source: RevenueBase Database · checked Sep 19, 2026
2	OMD Australia	Indirect evidence	South Eveleigh, AustraliaHQ checked Sep 19, 2026	501-1,000	523 contacts →
	Indirect evidence “OMD Australia is proud to be part of the OMD global network, the world's largest leading marketing and communications agency.” Source: RevenueBase Database · checked Sep 19, 2026
3	SBM Marketing Communications	Indirect evidence	Silverwater, AustraliaHQ checked Sep 19, 2026	51-200	147 contacts →
	Indirect evidence “At SBM, we understand the power of marketing and effective communications.” Source: RevenueBase Database · checked Sep 19, 2026
4	SEC Newgate Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	110 contacts →
	Indirect evidence “SEC Newgate Australia is Australia’s largest full-service strategic communications firm for complex issues.” Source: RevenueBase Database · checked Sep 19, 2026
5	EVH	Indirect evidence	Darlinghurst, AustraliaHQ checked Sep 19, 2026	11-50	83 contacts →
	Indirect evidence “Creative communications for established and emerging luxury, lifestyle, design, fashion and wellness brands An independent agency founded and based in Sydney with operations in…” Source: RevenueBase Database · checked Sep 19, 2026
6	Thrive PR Communications	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “Thrive is the largest independent, Australian-owned public relations agency that exists to help its people, partners and the community grow vigorously, flourish and be successful.” Source: RevenueBase Database · checked Sep 19, 2026
7	UMM	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	71 contacts →
	Indirect evidence “UMM crafts brand stories to motivate action.” Source: RevenueBase Database · checked Sep 19, 2026
8	Cassette	Indirect evidence	Cremorne, AustraliaHQ checked Sep 19, 2026	11-50	61 contacts →
	Indirect evidence “At Cassette, creativity intersects with communications strategy, and integrated campaigns are delivered via memorable and compelling content.” Source: RevenueBase Database · checked Sep 19, 2026
9	ONE Green Bean	Indirect evidence	The Rocks, AustraliaHQ checked Sep 19, 2026	51-200	58 contacts →
	Indirect evidence “We’re a creative communications agency specialising in PR, social media and events.” Source: RevenueBase Database · checked Sep 19, 2026
10	Purple	Indirect evidence	Perth, AustraliaHQ checked Sep 19, 2026	11-50	54 contacts →
	Indirect evidence “Purple is one of Australia’s leading marketing and communications agencies – using insight, impact, influence and innovation to drive positive change for our clients, our people…” Source: RevenueBase Database · checked Sep 19, 2026
11	Phillips Group	Indirect evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	11-50	54 contacts →
	Indirect evidence “At Phillips Group, we see beyond the obvious – that’s what sets us apart.” Source: RevenueBase Database · checked Sep 19, 2026
12	Mahlab	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	49 contacts →
	Indirect evidence “Mahlab is a business communications house headquartered in Asia Pacific, with almost 30 years’ experience in telling complex stories that create real and positive impact for…” Source: RevenueBase Database · checked Sep 19, 2026
13	BPR	Indirect evidence	Adelaide, AustraliaHQ checked Sep 19, 2026	n/a	49 contacts →
	Indirect evidence “BPR is a boutique Adelaide marketing communications agency specialising in strategic brand management, events and results driven public relations.” Source: RevenueBase Database · checked Sep 19, 2026
14	Dentsu QLD	Indirect evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	51-200	42 contacts →
	Indirect evidence “dentsu Qld is a leading marketing and communications specialist agency known for delivering best-in-class integrated services and solutions in media, CXM, creative and public…” Source: RevenueBase Database · checked Sep 19, 2026
15	Rapid Media	Indirect evidence	Newstead, AustraliaHQ checked Sep 19, 2026	11-50	42 contacts →
	Indirect evidence “Rapid Media is a full-service communications agency offering media, digital and creative solutions to clients across a range of industries including retail, FMCG and e-commerce to…” Source: RevenueBase Database · checked Sep 19, 2026
16	DEC PR	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	38 contacts →
	Indirect evidence “At DEC PR we are in the important business of building brands and protecting reputations.” Source: RevenueBase Database · checked Sep 19, 2026
17	Bluechip Communication	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	38 contacts →
	Indirect evidence “We use strategy, marketing & communication to help financial services leaders and brands protect and grow their reputation, impact and revenue.” Source: RevenueBase Database · checked Sep 19, 2026
18	Honner	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	36 contacts →
	Partial evidence “Honner, A FINN Partners Company is a specialist communications consultancy for the financial and corporate sectors across Australia and the Asia-Pacific.” Source: RevenueBase Database · checked Sep 19, 2026
19	Sefiani, Part Of Clarity Global	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	35 contacts →
	Partial evidence “Sefiani is a leading Australian communications agency that has built, enhanced and protected corporate and brand reputations over two decades.” Source: RevenueBase Database · checked Sep 19, 2026
20	Bambrick	Indirect evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Bambrick Media is a full-service branding and multimedia company based in Brisbane, Australia.” Source: RevenueBase Database · checked Sep 19, 2026
21	Marketforce A Member Of Clemenger Bbdo Network	Indirect evidence	West Perth, AustraliaHQ checked Sep 19, 2026	51-200	33 contacts →
	Indirect evidence “Marketforce is a Brand & Media Marketing Communications Agency.” Source: RevenueBase Database · checked Sep 19, 2026
22	BBS Communications Group	Indirect evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “BBS Communications Group is one of Australia’s most respected strategic communications agencies.” Source: RevenueBase Database · checked Sep 19, 2026
23	GDJ Advertising	Indirect evidence	North Melbourne, AustraliaHQ checked Sep 19, 2026	n/a	32 contacts →
	Indirect evidence “After a marketing partner who can listen, plan, create, craft and execute with you to achieve your communications goals in 2024?” Source: RevenueBase Database · checked Sep 19, 2026
24	Essential	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “Essential is a strategic communications agency working primarily with member and not-for-profit organisations.” Source: RevenueBase Database · checked Sep 19, 2026
25	SABIO	Indirect evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “At Sabio, we create success for our clients by elevating the everyday, into the unexpected.” Source: RevenueBase Database · checked Sep 19, 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: corporate messaging agencies. 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 corporate messaging agencies.
Partial evidence: Its own public description names part of corporate messaging agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name corporate messaging agencies. 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 815 corporate messaging agencies based in Australia

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Corporate messaging agencies based in Australia at a glance

As of Sep 19, 2026

37.3%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

20.4%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

640

11-50

146

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 815 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 corporate messaging agencies, 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 “corporate messaging agencies”. 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 corporate messaging agencies), 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 corporate messaging agencies, 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, 2,378 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 19, 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.

Corporate messaging agencies by metro

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 corporate messaging agencies, 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 corporate messaging agencies are there based in Australia?

RevenueBase identified 815 corporate messaging agencies 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?

Jimjam Ideas, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most corporate messaging agencies?

Sydney leads with 166 headquartered companies, followed by Melbourne (113) and Brisbane (74).

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 2,378 verified decision-maker contacts tracked across these 815 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 19, 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.