Company lists · Data refreshed September 2026

Top 25 Retrofit consultants based in Australia

Name: Retrofit consultants based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 596 companies tracked

RevenueBase identified 596 retrofit consultants headquartered in Australia as of September 2026 and tracks 7,194 professional contacts across them, including 3,509 with verified work emails. Sydney is the largest hub.

This list covers retrofit consultants 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 29, 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 29, 2026 86% judged on-target in blind review

596Companies

7,194Contacts tracked

3,509Verified emails

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The 25 largest retrofit consultants based in Australia

Ranked by team size

Top 25 of 596 retrofit consultants based in Australia, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to retrofit consultants: 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	Robert Bird Group	Partial evidence	Brisbane, AustraliaHQ checked Sep 29, 2026	501-1,000	872 contacts →
	Partial evidence “Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…” Source: RevenueBase Database · checked Sep 29, 2026
2	TTW	Indirect evidence	North Sydney, AustraliaHQ checked Sep 29, 2026	501-1,000	472 contacts →
	Indirect evidence “Great engineering starts with great people.” Source: RevenueBase Database · checked Sep 29, 2026
3	Freyssinet Australia	Indirect evidence	Macquarie Park, AustraliaHQ checked Sep 29, 2026	201-500	220 contacts →
	Indirect evidence “Freyssinet is a versatile contractor that offers innovative solutions spanning from design to implementation for Specialist Civil Engineering and Structure Remediation projects.” Source: RevenueBase Database · checked Sep 29, 2026
4	Partum Engineering	Indirect evidence	Burswood, AustraliaHQ checked Sep 29, 2026	201-500	154 contacts →
	Indirect evidence “Partum is an Australian based company providing engineering design and project consulting advice.” Source: RevenueBase Database · checked Sep 29, 2026
5	BSE Australia	Partial evidence	North Sydney, AustraliaHQ checked Sep 29, 2026	51-200	121 contacts →
	Partial evidence “Building Services Engineers (BSE) is a 100% Australian-owned national engineering consultancy established in 1994.” Source: RevenueBase Database · checked Sep 29, 2026
6	TMK Consulting Engineers	Indirect evidence	Adelaide, AustraliaHQ checked Sep 29, 2026	51-200	102 contacts →
	Indirect evidence “TMK Consulting Engineers success and growth is built on a reputation of delivering broad-based engineering design that is high quality, technical excellence, reliable and building…” Source: RevenueBase Database · checked Sep 29, 2026
7	Aston Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 29, 2026	51-200	95 contacts →
	Indirect evidence “We engineer environments that enhance the human experience.” Source: RevenueBase Database · checked Sep 29, 2026
8	Buss Remediation	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 29, 2026	11-50	94 contacts →
	Indirect evidence “BUSS is a privately owned and operated company which has evolved over the last 20 years, supporting both Perth and WA based clients.” Source: RevenueBase Database · checked Sep 29, 2026
9	Philip Chun Building Compliance	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	86 contacts →
	Partial evidence “Australia's most trusted and comprehensive building code, essential services management and accessibility consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
10	E-Lab Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 29, 2026	51-200	84 contacts →
	Indirect evidence “Where Engineering & Science Inspire Design.” Source: RevenueBase Database · checked Sep 29, 2026
11	Partridge	Partial evidence	St Leonards, AustraliaHQ checked Sep 29, 2026	51-200	74 contacts →
	Partial evidence “Partridge - Structural, Remedial, Hydraulic, & Event Engineers Founded in Sydney in 1982, Partridge is a structural and civil engineering consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
12	Bligh Tanner	Partial evidence	Fortitude Valley, AustraliaHQ checked Sep 29, 2026	51-200	69 contacts →
	Partial evidence “With offices in Brisbane and Sydney, Bligh Tanner is a structural, façade, civil, environmental and water engineering consultancy distinguished by its high level of expertise…” Source: RevenueBase Database · checked Sep 29, 2026
13	Bornhorst Ward	Indirect evidence	Brisbane, AustraliaHQ checked Sep 29, 2026	51-200	63 contacts →
	Indirect evidence “Civil and Structural Consulting Engineers Bornhorst + Ward combine 50 years business experience, innovative design, advanced technology, cunting edge solutions, quality and…” Source: RevenueBase Database · checked Sep 29, 2026
14	Adams Consulting Engineers PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	63 contacts →
	Indirect evidence “Adams Consulting Engineers began in Melbourne in 1991, with a small team of talented structural and civil consulting engineers.” Source: RevenueBase Database · checked Sep 29, 2026
15	Rincovitch Consultants	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	11-50	60 contacts →
	Partial evidence “Rincovitch Consultants are a specialized structural engineering consultancy that provides exceptional building design and construction phase services.” Source: RevenueBase Database · checked Sep 29, 2026
16	Triaxial Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 29, 2026	51-200	57 contacts →
	Indirect evidence “Established in 2012, Triaxial Consulting are a firm of Consulting Civil and Structural Engineers, who provide a suite of specialist consulting engineering services, to all…” Source: RevenueBase Database · checked Sep 29, 2026
17	STA Consulting Engineers	Indirect evidence	Eight Mile Plains, AustraliaHQ checked Sep 29, 2026	51-200	55 contacts →
	Indirect evidence “STA is one of the most trusted engineering companies in the Australian building industry.” Source: RevenueBase Database · checked Sep 29, 2026
18	Bestec PTY LTD	Indirect evidence	Adelaide, AustraliaHQ checked Sep 29, 2026	51-200	54 contacts →
	Indirect evidence “We are a consulting engineering firm focused on bringing buildings to life.” Source: RevenueBase Database · checked Sep 29, 2026
19	Silver Wolf Projects	Partial evidence	Kogarah, AustraliaHQ checked Sep 29, 2026	51-200	48 contacts →
	Partial evidence “There are many Engineering Firms, Consultancies and Associates, but there is only one Pack of WOLVES!” Source: RevenueBase Database · checked Sep 29, 2026
20	Wrap Consulting Engineering	Partial evidence	Richmond, AustraliaHQ checked Sep 29, 2026	51-200	48 contacts →
	Partial evidence “WRAP Engineering is a comprehensive building services consultancy focused on delivering the highest level of personalised service to its clients.” Source: RevenueBase Database · checked Sep 29, 2026
21	Witt Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 29, 2026	11-50	43 contacts →
	Indirect evidence “Specialist engineers consulting in the fields of temporary works, structural, geotechnical and heritage reuse.” Source: RevenueBase Database · checked Sep 29, 2026
22	Construction Services And Infrastructure	Partial evidence	Sydney, AustraliaHQ checked Sep 29, 2026	11-50	42 contacts →
	Partial evidence “Construction Services & Infrastructure (CSI) is a leading independent Project Management, Building Services Management and Commissioning consultancy for the commercial…” Source: RevenueBase Database · checked Sep 29, 2026
23	Sellick Consultants PTY LTD	Partial evidence	Braddon, AustraliaHQ checked Sep 29, 2026	11-50	40 contacts →
	Partial evidence “Sellick Consultants is an award winning, multi-disciplinary engineering consulting firm offering superior design skills in the fields of structural, civil and hydraulic…” Source: RevenueBase Database · checked Sep 29, 2026
24	NJM Design VIC PTY LTD	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	11-50	39 contacts →
	Partial evidence “NJM Design is a leading Melbourne-based engineering consultancy focused on delivering high-quality, innovative design solutions that maximise the viability and appeal of every…” Source: RevenueBase Database · checked Sep 29, 2026
25	EMF Griffiths	Partial evidence	Ashmore, AustraliaHQ checked Sep 29, 2026	51-200	37 contacts →
	Partial evidence “EMF Griffiths is an Australian building services and sustainability consultancy providing ESD, Mechanical, Electrical, Fire, Hydraulics and Vertical Transport engineering services.” Source: RevenueBase Database · checked Sep 29, 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: retrofit consultants. 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 retrofit consultants.
Partial evidence: Its own public description names part of retrofit consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name retrofit consultants. 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 596 retrofit consultants based in Australia

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Retrofit consultants based in Australia at a glance

As of Sep 29, 2026

48.8%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

12.9%Largest-city concentration · Sydney

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

371

11-50

182

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 596 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 retrofit consultants, 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 “retrofit consultants”. 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 retrofit consultants), 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 retrofit consultants, 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, 3,509 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 29, 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.

Retrofit consultants 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 retrofit consultants, 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 retrofit consultants are there based in Australia?

RevenueBase identified 596 retrofit consultants 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?

Robert Bird Group, headquartered in Brisbane, tops this list with the largest team on record.

Which city has the most retrofit consultants?

Sydney leads with 77 headquartered companies, followed by Melbourne (65) and Brisbane (26).

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 3,509 verified decision-maker contacts tracked across these 596 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 29, 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.