Company lists · Data refreshed September 2026

Top 14 Tax advisory services companies based in Adelaide, Australia

RevenueBase identified 26 tax advisory services companies headquartered in Adelaide, Australia as of September 2026 and tracks 260 professional contacts across them, including 70 with verified work emails. Sydney is the largest hub.

This list covers tax advisory services companies headquartered in Adelaide, 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 22, 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 22, 2026 86% judged on-target in blind review
26Companies
260Contacts tracked
70Verified emails
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The 14 largest tax advisory services companies based in Adelaide, Australia

Ranked by team size
Top 14 of 26 tax advisory services companies based in Adelaide, Australia, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to tax advisory services 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAdelaide, AustraliaHQ checked Sep 22, 202611-5020 contacts →

Partial evidence

“One Advisory is an innovative team of business and finance professionals passionate about helping your business do great things.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-1016 contacts →

Indirect evidence

“From startups to scale ups, Growth IQ works with like-minded clients hungry for success.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceAdelaide, AustraliaHQ checked Sep 22, 202611-5014 contacts →

Indirect evidence

“Our business clients are micro and small to medium businesses.”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceAdelaide, AustraliaHQ checked Sep 22, 202611-5010 contacts →

Partial evidence

“We’re a team of financial advisers, chartered accountants, tax consultants, SMSF specialists and strategic business advisers who understand how to use numbers to help you achieve…”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceAdelaide, AustraliaHQ checked Sep 22, 202611-508 contacts →

Indirect evidence

“More than 20 years building businesses, relationships and trust.”

Source: RevenueBase Database · checked Sep 22, 2026
6Partial evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-105 contacts →

Partial evidence

“Prespa Consultancy aims to provide a concise and comprehensive approach to accounting, taxation and business advisory.”

Source: RevenueBase Database · checked Sep 22, 2026
7Partial evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-105 contacts →

Partial evidence

“We devote to work with our clients to prosper by delivering world-class accounting, tax and consulting expertise to their business journey and wealth creation built through…”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“About Us Integral Accounting Services is an accounting firm specialising in Accounting and Taxation.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-103 contacts →

Partial evidence

Tax is a complex area and involves a lot of knowledge of the law as it changes constantly.”

Source: RevenueBase Database · checked Sep 22, 2026
11Strong evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-102 contacts →

Strong evidence

“At Booth Advisory our main purpose is to leverage our accounting, tax and advisory skills to support businesses and individuals in reaching their financial goals.”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-102 contacts →

Partial evidence

“We've got experience in tackling anything.from tax law to strategies for boosting profitability.”

Source: RevenueBase Database · checked Sep 22, 2026
13Strong evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-101 contacts →

Strong evidence

“We can help YOU- Obtain sensible and practical advice- Gain a business partner who delivers peace of mind- Gain a trusted advisor and tax specialist who is focused on giving…”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceAdelaide, AustraliaHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026

Showing 14 of 26 tax advisory services companies based in Adelaide, Australia

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Tax advisory services companies based in Adelaide, Australia at a glance

As of Sep 22, 2026
26.9%Verified-email coverage
10.0Average contacts per company
1-10Median size (employees)
442.3%Largest-city concentration · Sydney
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
6
51-200
1

Email recency for this list is measured across the whole Australia list rather than for Adelaide, so it is reported there. Company counts and contact totals on this page are exact for Adelaide, over 26 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 tax advisory services 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 Adelaide, Australia whose own description of what they do matches “tax advisory services 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 tax advisory services 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 tax advisory services companies, and records with no verified work email. Companies headquartered outside Adelaide 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, 70 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 22, 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.

Tax advisory services companies by metro in Australia

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 tax advisory services 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 tax advisory services companies are there based in Adelaide, Australia?

RevenueBase identified 26 tax advisory services companies headquartered in Adelaide, 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?

ONE Advisory, headquartered in Adelaide, tops this list with the largest team on record.

Which city has the most tax advisory services companies?

Sydney leads with 115 headquartered companies, followed by Melbourne (89) and Brisbane (43).

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 70 verified decision-maker contacts tracked across these 26 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 22, 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.