Company lists · Data refreshed September 2026

Top 15 Sign language interpreting agencies based in Australia

RevenueBase identified 30 sign language interpreting agencies headquartered in Australia as of September 2026 and tracks 1,604 professional contacts across them, including 352 with verified work emails. Melbourne is the largest hub.

This list covers sign language interpreting agencies 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
30Companies
1,604Contacts tracked
352Verified emails
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The 15 largest sign language interpreting agencies based in Australia

Ranked by team size
Top 15 of 30 sign language interpreting agencies 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 sign language interpreting agencies: 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 evidenceSouth Melbourne, AustraliaHQ checked Sep 29, 20261,001-5,000449 contacts →

Partial evidence

“Oncall is a world leader in quality interpreting and translation services.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceMelbourne, AustraliaHQ checked Sep 29, 2026n/a276 contacts →

Indirect evidence

“Interpreter & translator services.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceSouth Brisbane, AustraliaHQ checked Sep 29, 2026501-1,000274 contacts →

Indirect evidence

“Deaf Connect is Australia’s largest whole-of-life Deaf organisation and the largest employer of Auslan users in the world.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceEast Melbourne, AustraliaHQ checked Sep 29, 202651-200119 contacts →

Indirect evidence

“Expression Australia is a not-for-profit organisation that has been serving the Deaf community since 1884.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceSouthbank, AustraliaHQ checked Sep 29, 20261,001-5,00099 contacts →

Partial evidence

“All Graduates is a privately owned language services agency.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceMelbourne, AustraliaHQ checked Sep 29, 2026201-50041 contacts →

Partial evidence

“Connecting Now provides Enterprise and Government customers with simple and fast on demand Language Services.”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceMelbourne, AustraliaHQ checked Sep 29, 202651-20026 contacts →

Strong evidence

“Echo interpreting is a specialist in the field of Auslan interpreting and endeavours to meet the individual language requirements for each of our clients by adhering to our core…”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceAustraliaHQ checked Sep 29, 20261,001-5,00023 contacts →

Partial evidence

“Oncall is a world leader in quality interpreting and translation services.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceMoorebank, AustraliaHQ checked Sep 29, 202651-20021 contacts →

Indirect evidence

“Signpedia is a registered NDIS provider of tailored services and resources to Deaf and hard of hearing people, Auslan users, these who are nonverbal, their families and friends.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceSouth Launceston, AustraliaHQ checked Sep 29, 20261-1010 contacts →

Strong evidence

“All About Languages provides translating, interpreting and language training to agencies, institutions, organisations and individuals in more than 100 languages and dialects.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceSydney, AustraliaHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“Sharon, who was born Deaf and raised in the Sutherland Shire, was eager to join the workforce upon completing her schooling.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceWest Perth, AustraliaHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Welcome to the world of language services.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceSeven Hills, AustraliaHQ checked Sep 29, 202651-2002 contacts →

Strong evidence

“Auslan Interpreting (Australian Sign Language)* Deaf Interpreters * Auslan Classes * Auslan / English * Emergency After Hours Interpreting * Deafness Awareness Training * VRI…”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceBinna Burra, AustraliaHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceCaboolture South, AustraliaHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026

Showing 15 of 30 sign language interpreting agencies based in Australia

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Sign language interpreting agencies based in Australia at a glance

As of Sep 29, 2026
21.9%Verified-email coverage
53.5Average contacts per company
11-50Median size (employees)
13.3%Largest-city concentration · Melbourne
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
9
11-50
9
51-200
5
201-500
1
501-1,000
1
1,001-5,000
4

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 30 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 sign language interpreting agencies, 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 “sign language interpreting agencies”. 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 sign language interpreting agencies), 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 sign language interpreting agencies, 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, 352 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.

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 sign language interpreting agencies, 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 sign language interpreting agencies are there based in Australia?

RevenueBase identified 30 sign language interpreting agencies 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?

Oncall, headquartered in South Melbourne, tops this list with the largest team on record.

Which city has the most sign language interpreting agencies?

Melbourne leads with 4 headquartered companies, followed by Brisbane (2) and Canberra (2).

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 352 verified decision-maker contacts tracked across these 30 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.