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Top 37 professional services firms in Western Australia

Tamtam tracks 37 professional services firms headquartered in Western Australia. This list ranks all of them by number of employees on LinkedIn, led by TSA Group - Australia, RSM Australia and MPI. Their median headcount is 384. Half of them were founded in 1998 or later. The most common headquarters are Perth (17), West Perth (6) and Osborne Park (2).

馃嚘馃嚭 Western Australia37 companiesUpdated Nov 12, 2026

These are professional services firms in Western Australia, mostly mid-sized to large companies. Many of them operate in engineering, construction, and mining sectors. For instance, Lycopodium is an Australian engineering consultancy, Duratec specializes in steel and concrete protection, and Primero is a multidisciplinary engineering group for global resource projects. RSM Australia offers assurance, tax, and consulting services, while TSA Group specializes in CX consultancy.

The data shows a strong concentration of headquarters in Perth and its immediate suburbs like West Perth, Osborne Park, and Balcatta. This indicates a central hub for professional services within the region, particularly for companies supporting the prominent mining and construction industries.

#CompanyIndustryHeadquarters EmployeesFounded
1
TSA Group - Australiatsagroup.com.au

Specializing in CX consultancy and services, we revolutionize brand interactions with Australians through local expertise, advanced technology, and dedicated teams

Outsourcing and Offshoring Consulting 馃嚘馃嚭 West Perth 2,198 1997
2
RSM Australiarsm.global

A member of a global network providing assurance, tax, and consulting services with a client-centric approach and deep understanding of businesses

Accounting 馃嚘馃嚭 Perth 1,841 1922
3
MPImpirecruitment.au

Specialist mining industry recruiters matching the right candidates to mining jobs, providing resources, guidance, and client care beyond placement

Mining 馃嚘馃嚭 West Perth 1,301 1995
4
Lycopodiumlycopodium.com

Australian engineering consultancy specializing in project management across various industries, prioritizing client objectives, quality services, and growth through organic expansion and strategic acquisitions

Professional Services 馃嚘馃嚭 Perth 1,239 1992
5
Robert Bird Grouprobertbird.com

Provides structural, civil, and construction engineering consultancy services, creating value for clients through innovative application of engineering science and planning for construction.

Construction 馃嚘馃嚭 Brisbane 912 1982
6
Duratecduratec.com.au

Specializing in steel and concrete protection and remediation, offering cost-effective solutions to extend asset life through innovative programs and methodologies

Construction 馃嚘馃嚭 Wangara 873 n/a
7
Empiredempired.com

The company provides IT services and solutions to improve productivity, empower staff, and automate business processes for organizations of all sizes and industries

IT Services and IT Consulting 馃嚘馃嚭 Perth 851 n/a
8
Calibrewsp.com

A global engineering firm offering design, engineering, advisory, and environmental services with expertise in EPCM project delivery and major capital projects

Mining 馃嚘馃嚭 Perth 834 1993
9
Primeroprimero.com.au

A multidisciplinary engineering group specializing in design, construction, and operation of global resource projects, offering turnkey solutions, maintenance services, and BOO solutions

Mining 馃嚘馃嚭 Osborne Park 821 2011
10
Five Group Pty Ltdthefivegroup.com.au

A group of engineering, surveying, and architectural drafting companies operating in Australia and South East Asia with subsidiaries in various specialized areas

Construction 馃嚘馃嚭 Balcatta 642 n/a
11
RSCrscmme.com

Global geological services company offering practical solutions from exploration to remediation, prioritizing client needs, team well-being, and integrity in all operations

Mining 馃嚘馃嚭 Perth 619 2008
12
MNGlinktr.ee

Specializing in providing survey and spatial information services to land development and resources & infrastructure sectors, with award-winning projects across Australia

Surveying and Mapping Services 馃嚘馃嚭 Murdoch 599 1989
13
Land Surveyslandsurveys.net.au

A leading survey company providing comprehensive services across Australia and internationally, utilizing the latest technology to achieve high quality results

Surveying and Mapping Services 馃嚘馃嚭 Belmont 594 1997
14
Powertechpowertech.com.au

Engineering and technical services specializing in electrical solutions for mining, oil and gas, renewables, infrastructure, and defense projects Rental and maintenance of testing equipment available

Engineering Services 馃嚘馃嚭 Malaga 588 1998
15
Verisveris.com.au

Leading provider of spatial data services in Australia for private and public sectors, delivering innovative solutions through a highly-skilled team

Professional Services 馃嚘馃嚭 Perth 533 2006
16
Mediserve Nursing Agencymediserve.com.au

Specializing in placing Nurses and Carers nationwide, providing high-quality service and support, including assistance with transport, accommodation, and charity work

Staffing and Recruiting 馃嚘馃嚭 Perth 462 1998
17
GR Engineering Services Ltdgres.com.au

An engineering, consulting, and contracting company specializing in fixed-price design and construction services for the resources and mineral processing industries, both locally and internationally

Mining 馃嚘馃嚭 Ascot 447 2006
18
HAChacaustralia.com

Specialist consulting firm providing strategic advice in energy and climate change, assisting clients with compliance, emissions abatement, and preparing for future challenges

Renewables & Environment 馃嚘馃嚭 Perth 396 2007

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19
Chamber of Commerce and Industry WAcciwa.com

A business peak body in WA for over 125 years, supporting and connecting businesses to create a world-leading place for living and working

Non-profit Organizations 馃嚘馃嚭 Perth 384 1890
20
Konektkonekt.com.au

A leading workplace injury management and health solutions provider in Australia, helping organizations maximize productivity, reduce costs, and ensure safer workplaces

Vocational Rehabilitation Services 馃嚘馃嚭 West Perth 372 1992
21
APM Employment Servicesapm.net.au

The company offers recruitment services to help businesses find qualified, job-ready candidates quickly and at no cost, with ongoing support

Staffing and Recruiting 馃嚘馃嚭 West Perth 362 1994
22
Agilituslinktr.ee

An employee-owned company providing engineering, design, project delivery, and advisory services to clients in the Resources, Energy, and Industrial sectors

Engineering Services 馃嚘馃嚭 Perth 346 2017
23
Legal Aid WAlegalaid.wa.gov.au

A leading provider of legal aid services in Western Australia, offering a team of around 300 lawyers and support staff across 9 offices

Legal Services 馃嚘馃嚭 Perth 325 n/a
24
CMW Geosciencescmwgeosciences.com

Specialist geotechnical consultancy delivering top-notch engineering services in Australia and New Zealand across Infrastructure, Energy & Resources, and Land & Buildings sectors

Civil Engineering 馃嚘馃嚭 Perth 324 2012
25
Techforce Personnel Pty Ltdtechforce.com.au

This Australian recruitment group with over 25 years of experience provides qualified blue and white collar staff across various industries nationwide

Staffing and Recruiting 馃嚘馃嚭 Perth 302 n/a
26
PARC Engineering Pty Ltdparcengineering.com.au

Provides comprehensive engineering and project management solutions to clients in Australian resources, energy, and infrastructure sectors, including civil, mechanical, electrical, and inspection services.

Construction 馃嚘馃嚭 Applecross 188 2018
27
Knightknightgroup.com.au

Helping clients achieve financial success through skilled guidance and advice for individuals, families, businesses, and companies at all stages of life

Financial Services 馃嚘馃嚭 Subiaco 181 1971
28
AustAsia Groupaustasiagroup.com

A diversified financial services group offering real estate, business broking, financial planning, accounting, legal, and consulting services with a client-focused approach

Financial Services 馃嚘馃嚭 West Perth 76 1979
29
SPIE Global Services Energy, Australiaspiegse.com

Providing electrical, instrument, and control engineering services including construction, commissioning, maintenance, and lifecycle inspections for industrial projects.

Engineering Services 馃嚘馃嚭 Perth 63 2002
30
Wealthwise Financial Planningwealthwise.com.au

The company helps clients achieve financial independence and desired lifestyle through expertise gained since 1986

Financial Services 馃嚘馃嚭 Osborne Park 36 1986
31
Labradorlpm.com.au

A well management company providing client-focused solutions in the oil, gas, and energy sectors, offering drilling & completions consulting, project management, and personnel services

Oil and Gas 馃嚘馃嚭 Perth 24 1987
32
Astron Environmental Servicesecocene.com

An established environmental consultancy specializing in a wide range of services including surveys, monitoring, remote sensing, data science, and rehabilitation

Environmental Services 馃嚘馃嚭 East Perth 24 1985
33
INHERENTinherent.com.au

Inherent specializes in risk and safety management, providing efficient and effective solutions to help clients with compliance, documentation, and risk assessments

Oil and Gas 馃嚘馃嚭 Victoria Park 8 2011
34
AXB Asset Management Consultingaxbconsulting.com.au

Perth-based asset management consulting firm specializing in water, utilities, and resources industries to help asset managers make informed investment decisions

Business Consulting and Services 馃嚘馃嚭 Scarborough 7 2017
35
Miatke Consultingmarciamiatke.com

This company empowers leaders to reach higher levels of success through tailored training, coaching, and consulting services focused on peak performance and emotional intelligence

Business Consulting and Services 馃嚘馃嚭 Perth 2 2017
36
Aro Capitalarocapital.com.au

Investment advisory firm providing strategic advice, asset management for private clients and family offices, along with corporate advisory services and capital raising

Financial Services 馃嚘馃嚭 West Perth 2 2016
37
Remote Business Partnerremotebusinesspartner.com.au

Passionate about providing eco-friendly coffee options, we offer pesticide-free, locally hand-picked and roasted beans for a fresh Colombian coffee experience

Business Consulting and Services 馃嚘馃嚭 Perth 2 2025

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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