Company lists · Data refreshed September 2026

Top 25 Systems engineering consultants based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 765 companies tracked

RevenueBase identified 765 systems engineering consultants headquartered in Australia as of September 2026 and tracks 10,360 professional contacts across them, including 4,977 with verified work emails. Sydney is the largest hub.

This list covers systems engineering 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 18, 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 18, 2026 86% judged on-target in blind review

765Companies

10,360Contacts tracked

4,977Verified emails

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The 25 largest systems engineering consultants based in Australia

Ranked by team size

Top 25 of 765 systems engineering consultants based in Australia, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to systems engineering 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	Leidos Australia	Indirect evidence	Scoresby, AustraliaHQ checked Sep 18, 2026	1,001-5,000	969 contacts →
	Indirect evidence “Leidos is a Fortune 500® innovation company working to solve the world’s toughest challenges in government, intelligence, defence, aviation, border protection and health markets.” Source: RevenueBase Database · checked Sep 18, 2026
2	Robert Bird Group	Strong evidence	Brisbane, AustraliaHQ checked Sep 18, 2026	501-1,000	872 contacts →
	Strong 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 18, 2026
3	Nova Systems	Strong evidence	Adelaide, AustraliaHQ checked Sep 18, 2026	501-1,000	599 contacts →
	Strong evidence “Built on 25 years of test and evaluation and engineering experience, Nova Systems designs, integrates and delivers complex programs for Defence, emergency services and civil…” Source: RevenueBase Database · checked Sep 18, 2026
4	TTW	Partial evidence	North Sydney, AustraliaHQ checked Sep 18, 2026	501-1,000	472 contacts →
	Partial evidence “Great engineering starts with great people.” Source: RevenueBase Database · checked Sep 18, 2026
5	Systra ANZ	Partial evidence	North Sydney, AustraliaHQ checked Sep 18, 2026	201-500	232 contacts →
	Partial evidence “SYSTRA ANZ is a world leading consulting and engineering firm specialising in transportation, security & technology.” Source: RevenueBase Database · checked Sep 18, 2026
6	Partum Engineering	Partial evidence	Burswood, AustraliaHQ checked Sep 18, 2026	201-500	154 contacts →
	Partial evidence “Partum is an Australian based company providing engineering design and project consulting advice.” Source: RevenueBase Database · checked Sep 18, 2026
7	VAN DER Meer Consulting	Strong evidence	St Leonards, AustraliaHQ checked Sep 18, 2026	51-200	136 contacts →
	Strong evidence “van der Meer Consulting is a leading engineering consultancy providing a diverse range of specialist structural and civil design services across multiple sectors.” Source: RevenueBase Database · checked Sep 18, 2026
8	Safegroup Automation SGA	Strong evidence	Mayfield West, AustraliaHQ checked Sep 18, 2026	51-200	136 contacts →
	Strong evidence “SAFEgroup Automation (SGA) is a leading Australian provider of control system engineering services, specialising in delivering comprehensive solutions that extend from electrical…” Source: RevenueBase Database · checked Sep 18, 2026
9	BSE Australia	Strong evidence	North Sydney, AustraliaHQ checked Sep 18, 2026	51-200	121 contacts →
	Strong evidence “Building Services Engineers (BSE) is a 100% Australian-owned national engineering consultancy established in 1994.” Source: RevenueBase Database · checked Sep 18, 2026
10	TMK Consulting Engineers	Partial evidence	Adelaide, AustraliaHQ checked Sep 18, 2026	51-200	102 contacts →
	Partial 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 18, 2026
11	Sypaq Systems	Strong evidence	Port Melbourne, AustraliaHQ checked Sep 18, 2026	201-500	99 contacts →
	Strong evidence “SYPAQ is an innovative engineering and systems integration company, committed to creating a world that works, awarded the Australian Financial Review's "Most Innovative Company"…” Source: RevenueBase Database · checked Sep 18, 2026
12	Shoal Group PTY LTD	Partial evidence	Adelaide, AustraliaHQ checked Sep 18, 2026	51-200	86 contacts →
	Partial evidence “DEFENCE \| SPACE \| TRANSPORT \| ENERGY \| INFRASTRUCTURE Shoal is complex systems design company.” Source: RevenueBase Database · checked Sep 18, 2026
13	Indesco	Strong evidence	Canberra City, AustraliaHQ checked Sep 18, 2026	51-200	85 contacts →
	Strong evidence “With a rich history spanning four decades, Indesco has firmly established itself as a premier engineering consultancy.” Source: RevenueBase Database · checked Sep 18, 2026
14	AMOG	Indirect evidence	Glen Waverley, AustraliaHQ checked Sep 18, 2026	51-200	80 contacts →
	Indirect evidence “Expertise.” Source: RevenueBase Database · checked Sep 18, 2026
15	Pitch Black Group	Strong evidence	Brisbane, AustraliaHQ checked Sep 18, 2026	51-200	76 contacts →
	Strong evidence “Pitch Black Group is an Australian professional engineering and project services consultancy.” Source: RevenueBase Database · checked Sep 18, 2026
16	Bligh Tanner	Strong evidence	Fortitude Valley, AustraliaHQ checked Sep 18, 2026	51-200	69 contacts →
	Strong 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 18, 2026
17	Extel Technologies	Strong evidence	Mt.waverley, AustraliaHQ checked Sep 18, 2026	51-200	67 contacts →
	Strong evidence “Extel Technologies delivers advanced electronics engineering, manufacturing and sustainment for high-reliability systems across defence, aerospace, medical technology, AI and data…” Source: RevenueBase Database · checked Sep 18, 2026
18	L R Consulting	Indirect evidence	Newstead, AustraliaHQ checked Sep 18, 2026	51-200	67 contacts →
	Indirect evidence “L+R (formerly Lambert & Rehbein) offers a complete professional consulting service from inception to implementation.” Source: RevenueBase Database · checked Sep 18, 2026
19	Witthoft Engineering	Strong evidence	Fortitude Valley, AustraliaHQ checked Sep 18, 2026	51-200	65 contacts →
	Strong evidence “Witthoft Engineering Pty Ltd is an engineering consultancy company based in Brisbane, Australia, which specialises in electrical, instrumentation, industrial control system…” Source: RevenueBase Database · checked Sep 18, 2026
20	Bornhorst Ward	Indirect evidence	Brisbane, AustraliaHQ checked Sep 18, 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 18, 2026
21	Adams Consulting Engineers PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 18, 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 18, 2026
22	JMG Engineers	Partial evidence	Hobart, AustraliaHQ checked Sep 18, 2026	51-200	61 contacts →
	Partial evidence “JMG have been providing consulting Engineering services throughout Tasmania since 1960.” Source: RevenueBase Database · checked Sep 18, 2026
23	Triaxial Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 18, 2026	51-200	57 contacts →
	Partial 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 18, 2026
24	Bestec PTY LTD	Partial evidence	Adelaide, AustraliaHQ checked Sep 18, 2026	51-200	54 contacts →
	Partial evidence “We are a consulting engineering firm focused on bringing buildings to life.” Source: RevenueBase Database · checked Sep 18, 2026
25	PTG Consulting	Indirect evidence	Milton, AustraliaHQ checked Sep 18, 2026	51-200	54 contacts →
	Indirect evidence “With a suite of highly skilled engineers, PTG Consulting provides clients with the benefit of diverse and extensive experience and customised forward-thinking solutions.” Source: RevenueBase Database · checked Sep 18, 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: systems engineering 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 systems engineering consultants.
Partial evidence: Its own public description names part of systems engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems engineering 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 765 systems engineering consultants based in Australia

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Systems engineering consultants based in Australia at a glance

As of Sep 18, 2026

48.0%Verified-email coverage

13.5Average contacts per company

1-10Median size (employees)

9.7%Largest-city concentration · Sydney

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

470

11-50

235

51-200

201-500

501-1,000

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 765 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 systems engineering 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 “systems engineering 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 systems engineering 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 systems engineering 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, 4,977 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 18, 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.

Systems engineering consultants by metro

Systems engineering consultants in Sydney74
Systems engineering consultants in Melbourne72
Systems engineering consultants in Brisbane51
Systems engineering consultants in Perth29
Systems engineering consultants in Adelaide27

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 systems engineering 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 systems engineering consultants are there based in Australia?

RevenueBase identified 765 systems engineering 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?

Leidos Australia, headquartered in Scoresby, tops this list with the largest team on record.

Which city has the most systems engineering consultants?

Sydney leads with 74 headquartered companies, followed by Melbourne (72) and Brisbane (51).

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 4,977 verified decision-maker contacts tracked across these 765 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 18, 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.