Company lists · Data refreshed September 2026

Top 25 Platform building firms based in Sydney, Australia

Name: Platform building firms based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 366 companies tracked

RevenueBase identified 366 platform building firms headquartered in Sydney, Australia as of September 2026 and tracks 4,093 professional contacts across them, including 900 with verified work emails. Sydney is the largest hub.

This list covers platform building firms headquartered in Sydney, 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 5, 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 5, 2026 86% judged on-target in blind review

366Companies

4,093Contacts tracked

900Verified emails

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The 25 largest platform building firms based in Sydney, Australia

Ranked by team size

Top 25 of 366 platform building firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to platform building firms: 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	NCS Group Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	1,001-5,000	802 contacts →
	Indirect evidence “NCS in Australia is reinventing technology services from the inside out.” Source: RevenueBase Database · checked Sep 5, 2026
2	Orro Group	Partial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	201-500	393 contacts →
	Partial evidence “We are Orro – Australia’s platform-enabled, secure network and digital infrastructure provider.” Source: RevenueBase Database · checked Sep 5, 2026
3	Itelasoft	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	141 contacts →
	Indirect evidence “iTelaSoft is a ISO/IEC 27001:2022 accredited trusted technology partner delivering high-impact digital solutions across Australia, the UK, and APAC.” Source: RevenueBase Database · checked Sep 5, 2026
4	GHO Sydney	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	99 contacts →
	Indirect evidence “We are a creative digital agency based in Sydney.” Source: RevenueBase Database · checked Sep 5, 2026
5	BILUE	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	94 contacts →
	Indirect evidence “Bilue partners with ambitious organisations to design and engineer digital products that are built right, the first time.” Source: RevenueBase Database · checked Sep 5, 2026
6	Webential	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	75 contacts →
	Indirect evidence “Webential is a driving-edge web design, development, and digital marketing agency with a group of similar-minded digital creatives who believe in traveling that extra mile to…” Source: RevenueBase Database · checked Sep 5, 2026
7	Technocrat	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	69 contacts →
	Indirect evidence “Technocrat is one of Australia's leading digital agencies specialising in user experience (UX) and open source development.” Source: RevenueBase Database · checked Sep 5, 2026
8	Appello	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	57 contacts →
	Indirect evidence “Appello is a global digital product development company headquartered in Sydney.” Source: RevenueBase Database · checked Sep 5, 2026
9	Round Table Apps	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	48 contacts →
	Indirect evidence “At Round Table Apps, our mission is to create digital experiences that help organisations achieve their transformative goals.” Source: RevenueBase Database · checked Sep 5, 2026
10	Software At Scale	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	46 contacts →
	Indirect evidence “A leading technology consultancy that empowers businesses with comprehensive solutions for their digital transformation.” Source: RevenueBase Database · checked Sep 5, 2026
11	Digitalrooar	Partial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	44 contacts →
	Partial evidence “From web development to building a smart and creative solution, we cater to all your needs with our groundbreaking team and tools.” Source: RevenueBase Database · checked Sep 5, 2026
12	Sitback Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	40 contacts →
	Indirect evidence “At Sitback, we specialise in creating exceptional digital experiences that empower our clients, their customers, and our people.” Source: RevenueBase Database · checked Sep 5, 2026
13	Devops1	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	40 contacts →
	Indirect evidence “At DevOps1, our technologists are dedicated to using their collective experience and knowledge of modern engineering best practices to deliver effective, secure, and…” Source: RevenueBase Database · checked Sep 5, 2026
14	Tussle Digital	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	36 contacts →
	Indirect evidence “Tussle Digital is a leading digital marketing agency based in Sydney, Australia.” Source: RevenueBase Database · checked Sep 5, 2026
15	Digizoo	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	35 contacts →
	Indirect evidence “Digizoo was formed to fill a gap in the market for practical, technical transition from traditional systems and processes to the new digital world, increasingly sought by their…” Source: RevenueBase Database · checked Sep 5, 2026
16	Thinkmill	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	31 contacts →
	Indirect evidence “ABOUT US Thinkmill is an Australian software design and engineering consultancy.” Source: RevenueBase Database · checked Sep 5, 2026
17	Switch	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	26 contacts →
	Indirect evidence “Switch is a multi-award-winning digital experience and technology agency with proven success in deliver with proven success in delivering the complete vision for customer…” Source: RevenueBase Database · checked Sep 5, 2026
18	Vervio Digital	Partial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	23 contacts →
	Partial evidence “Vervio is a digital engineering consultancy that designs, delivers and supports enterprise-grade digital experience platforms, cloud modernisation, and AI-enabled solutions.” Source: RevenueBase Database · checked Sep 5, 2026
19	Interesting	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	23 contacts →
	Indirect evidence “We are an independent experience, design and technology studio based in Sydney, Australia.” Source: RevenueBase Database · checked Sep 5, 2026
20	Bearplus	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	22 contacts →
	Indirect evidence “BearPlus is an award-winning digital agency.” Source: RevenueBase Database · checked Sep 5, 2026
21	Sentia	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	21 contacts →
	Indirect evidence “Sentia is a software development consultancy company specialising in web and mobile development based in Sydney, Australia and now Zagreb, croatia Sentia is a team of enthusiastic…” Source: RevenueBase Database · checked Sep 5, 2026
22	Shakewell Agency	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	19 contacts →
	Indirect evidence “Shakewell Agency is a digital product studio where customer insight, technical expertise, and creativity unite to build transformative solutions.” Source: RevenueBase Database · checked Sep 5, 2026
23	Nasmak Technologies PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	19 contacts →
	Indirect evidence “At NASMAK Technologies Pty Ltd we offer Creative Solution, UX & UI Design, Custom Solution Development, Business Growth Strategy and Growth Hacking Marketing services.” Source: RevenueBase Database · checked Sep 5, 2026
24	The Reach Agency	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	18 contacts →
	Indirect evidence “We are the leading digital development agency for delivering better investor engagement and secure web solutions.” Source: RevenueBase Database · checked Sep 5, 2026
25	Rocket LAB PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	17 contacts →
	Indirect evidence “We conduct experiments that may or may not seriously break the universe.” Source: RevenueBase Database · checked Sep 5, 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: platform building firms. 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 platform building firms.
Partial evidence: Its own public description names part of platform building firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name platform building firms. 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 366 platform building firms based in Sydney, Australia

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Platform building firms based in Sydney, Australia at a glance

As of Sep 5, 2026

22.0%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

219

11-50

111

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole Australia list rather than for Sydney, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 366 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 platform building firms, 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 Sydney, Australia whose own description of what they do matches “platform building firms”. 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 platform building firms), 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 platform building firms, and records with no verified work email. Companies headquartered outside Sydney 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, 900 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 5, 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.

Platform building firms 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 platform building firms, 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 platform building firms are there based in Sydney, Australia?

RevenueBase identified 366 platform building firms headquartered in Sydney, 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?

NCS Group Australia, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most platform building firms?

Sydney leads with 366 headquartered companies, followed by Melbourne (327) and Brisbane (86).

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 900 verified decision-maker contacts tracked across these 366 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 5, 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.