Company lists · Data refreshed September 2026

Top 25 Change impact assessment companies based in Australia

Name: Change impact assessment companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 67 companies tracked

RevenueBase identified 67 change impact assessment companies headquartered in Australia as of September 2026 and tracks 437 professional contacts across them, including 202 with verified work emails. Sydney is the largest hub.

This list covers change impact assessment companies 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

67Companies

437Contacts tracked

202Verified emails

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The 25 largest change impact assessment companies based in Australia

Ranked by team size

Top 25 of 67 change impact assessment companies 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 change impact assessment companies: 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	ERIAS	Strong evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	46 contacts →
	Strong evidence “SPECIALISTS IN DELIVERING LIFE-OF-PROJECT ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT AND MANAGEMENT SOLUTIONS ERIAS was founded by experienced environmental professionals with a…” Source: RevenueBase Database · checked Sep 19, 2026
2	Assured Environmental AE	Indirect evidence	Tennyson, AustraliaHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “Assured Environmental (AE) is a team of experienced and trusted professionals focused on delivering high quality, responsive and practical environmental monitoring and consulting…” Source: RevenueBase Database · checked Sep 19, 2026
3	The Climate Risk Group PTY LTD	Partial evidence	Newcastle, AustraliaHQ checked Sep 19, 2026	11-50	22 contacts →
	Partial evidence “The Climate Risk Group is a group of companies, XDI and Climate Valuation, committed to quantifying and communicating the costs of climate change.” Source: RevenueBase Database · checked Sep 19, 2026
4	Future-Plus Environmental	Indirect evidence	Warana, AustraliaHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Expert Environmental Planners, Environmental Scientists and Environmental Engineering.” Source: RevenueBase Database · checked Sep 19, 2026
5	Foresight Consulting Group	Partial evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Foresight was founded with the vision to create real impact.” Source: RevenueBase Database · checked Sep 19, 2026
6	Accent Environmental PTY LTD	Strong evidence	Cremorne, AustraliaHQ checked Sep 19, 2026	11-50	14 contacts →
	Strong evidence “Accent Environmental provides environmental and social impact assessment and management services and strategic advice to renewable energy, mining and extractives, waste…” Source: RevenueBase Database · checked Sep 19, 2026
7	Terran Industries	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Climate risk is financial risk.” Source: RevenueBase Database · checked Sep 19, 2026
8	Aventus Consulting PTY LTD	Indirect evidence	Heatherton, AustraliaHQ checked Sep 19, 2026	1-10	13 contacts →
	Indirect evidence “Welcome to Aventus Consulting Pty Ltd (Aventus), a consultancy specialising in the provision of environmental advice, approvals, assurance and auditing services to the energy…” Source: RevenueBase Database · checked Sep 19, 2026
9	SYNE	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “SYNE is a Sustainability Management Platform benchmarking global businesses based on impact intellegence.” Source: RevenueBase Database · checked Sep 19, 2026
10	Green Tape Solutions	Partial evidence	Morayfield, AustraliaHQ checked Sep 19, 2026	1-10	10 contacts →
	Partial evidence “Green Tape Solutions is an Australian consultancy that specialises in environmental assessment, environmental surveys and auditing.” Source: RevenueBase Database · checked Sep 19, 2026
11	Greener	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “Greener is on a mission to deliver audit-ready mandatory climate reporting that is faster and easier than the rest.” Source: RevenueBase Database · checked Sep 19, 2026
12	Open Lines Environmental Consulting	Indirect evidence	Canberra, AustraliaHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Open Lines is a growing environmental consultancy with projects across Australia.” Source: RevenueBase Database · checked Sep 19, 2026
13	Thinkzero	Partial evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “We provide sustainability assessments, reporting, and advice to help organisations and communities of all sizes thrive within ecological limits.” Source: RevenueBase Database · checked Sep 19, 2026
14	Climate Risk Advisory	Partial evidence	North Sydney, AustraliaHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “CRA specialises in the assessment of projected physical climate risks and opportunities for Australian businesses, single assets and property portfolios.” Source: RevenueBase Database · checked Sep 19, 2026
15	Slate Advisory	Indirect evidence	Perth, AustraliaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Slate Advisory helps the natural resources, energy and infrastructure industries solve the challenge of adapting to external forces by advising established business on strategy…” Source: RevenueBase Database · checked Sep 19, 2026
16	Sage Design And Advisory	Partial evidence	Brisbane City, AustraliaHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “We use real-world experience to create valuable and enduring change.” Source: RevenueBase Database · checked Sep 19, 2026
17	SSG Sustainable Solutions Global	Indirect evidence	Malanda, AustraliaHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Sustainable Solutions Global (SSG) is an Engineering, Environmental and Social consultancy based in North Queensland, Australia.” Source: RevenueBase Database · checked Sep 19, 2026
18	informed.city	Partial evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “Informed.City is a climate change advisory and training company that helps organisations build resilience and respond to a changing climate.” Source: RevenueBase Database · checked Sep 19, 2026
19	Wall Planning Group	Strong evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	1-10	4 contacts →
	Strong evidence “Social Impact Assessment \| Stakeholder & Community Engagement \| Resources \| Renewable Energy \| Project Approvals \| Did you know: 🦺 26 operating coal mines and 4 other resources…” Source: RevenueBase Database · checked Sep 19, 2026
20	Blue Crane Consulting Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Blue Crane Consulting Group is the partner that will help to define your path in a complex world.” Source: RevenueBase Database · checked Sep 19, 2026
21	Netfolios	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Climate-Smart Investing with AI-Driven Insights We offer an unmatched suite of AI-powered climate intelligence tools that put you in control of your portfolios' climate impact.” Source: RevenueBase Database · checked Sep 19, 2026
22	Green Edge Environmental	Indirect evidence	Tanunda, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Established in 2010 Green Edge Environmental provides specialised environmental and communications services to private, not for profit and government agencies across New South…” Source: RevenueBase Database · checked Sep 19, 2026
23	Viridis Environmental	Strong evidence	Perth, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “An environmental consultancy with expertise in ecology and environmental impact assessment for the mining, oil and gas and infrastructure sectors.” Source: RevenueBase Database · checked Sep 19, 2026
24	Agencia Change	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Welcome to Agencia Change.” Source: RevenueBase Database · checked Sep 19, 2026
25	Acacia	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “Acacia is a collective of leading consultants and organisations that helps governments and industry do more of what truly matters: enhancing human, economic, and planetary…” 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: change impact assessment companies. 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 change impact assessment companies.
Partial evidence: Its own public description names part of change impact assessment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name change impact assessment companies. 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 67 change impact assessment companies based in Australia

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Change impact assessment companies based in Australia at a glance

As of Sep 19, 2026

46.2%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

22.4%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

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 67 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 change impact assessment companies, 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 “change impact assessment companies”. 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 change impact assessment companies), 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 change impact assessment companies, 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, 202 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.

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 change impact assessment companies, 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 change impact assessment companies are there based in Australia?

RevenueBase identified 67 change impact assessment companies 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?

ERIAS, headquartered in Norwood, tops this list with the largest team on record.

Which city has the most change impact assessment companies?

Sydney leads with 15 headquartered companies, followed by Melbourne (7) and Adelaide (5).

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 202 verified decision-maker contacts tracked across these 67 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.