Insights

Strategic Growth Brennan IT is expanding through notable client wins and acquisitions, including TasPorts Group and CBRCYBER, signaling a strong growth trajectory and a need for scalable infrastructure, cybersecurity, and integration services to support larger, blended technology estates.

Cybersecurity Focus The acquisition of CBRCYBER and the Securonix partnership indicate a deliberate emphasis on managed security, threat detection, and unified defense capabilities, presenting cross-sell opportunities for SOC, SIEM, and zero-trust implementations.

Integrated Platform Brennan positions itself as a single-provider model for managed infrastructure, systems integration, and cybersecurity, suggesting opportunities to consolidate multi-vendor projects and expand into end-to-end modernization initiatives for mid-market clients.

Public Sector Momentum Engagement with TasPorts and rural water initiatives show a track record in public sector digital upgrades, creating potential for additional government, utilities, and critical-infrastructure modernization projects.

Financial Strength The company has substantial revenue in the mid-market range and now has backing from Macquarie Capital, which can be leveraged to support larger deals, multi-year programs, and co-investment opportunities with enterprise clients.

Similar companies to Brennan

Brennan Tech Stack

Brennan uses 8 technology products and services including Microsoft SharePoint, Mailchimp, Microsoft Dynamics, and more. Explore Brennan's tech stack below.

Media & News

Brennan's Email Address Formats

Brennan uses at least 2 email formats:
Brennan Email FormatsExamplePercentage
First.Last@brennanit.com.auJohn.Doe@brennanit.com.au
94%
FirstL@brennanit.com.auJohnD@brennanit.com.au
6%

Frequently Asked Questions

What is Brennan's phone number?

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You can contact Brennan's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Brennan's official website and social media links?

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Brennan's official website is brennanit.com.au and has social profiles on LinkedIn.

How much revenue does Brennan generate?

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As of August 2026, Brennan's annual revenue is estimated to be $100M - $250M.

What is Brennan's NAICS code?

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Brennan's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Brennan have currently?

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As of August 2026, Brennan has approximately 1.1K employees across 6 continents, including Oceania, Asia and North America. Key team members include Chief Executive Officer: A. B., Chief Executive Officer: B. V. D. L. and Cfo: S. B. Explore Brennan's employee directory with LeadIQ.

What industry does Brennan belong to?

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Brennan operates in the IT Services and IT Consulting industry.

What technology does Brennan use?

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Brennan's tech stack includes Microsoft SharePoint, Mailchimp, Microsoft Dynamics, Juniper Networks, ZoomInfo, Zendesk Chat, Microsoft Defender and Piwik.

What is Brennan's email format?

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Brennan's email format typically follows the pattern of First.Last@brennanit.com.au. Find more Brennan email formats with LeadIQ.

When was Brennan founded?

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Brennan was founded in 1997.
Brennan logo

Brennan

IT Services and IT ConsultingNew South Wales, Australia1001-5000 Employees

Brennan is a large IT services and consulting firm based in Sydney, New South Wales. The company designs, procures, maintains, and delivers technology systems tailored to each client’s specific needs and end-user requirements, with the aim of producing real, practical value. Its operating approach, described as the True Performance System, is intended to improve the way technology is delivered by aligning outcomes with what customers and their users actually experience.

It serves organizations looking for integrated IT solutions across infrastructure, systems integration, and cybersecurity, offering a single-provider model to help align technology with business goals. In March 2026 Brennan IT expanded its capabilities by acquiring CBRCYBER Pty Ltd, a move that broadened its cybersecurity and managed-services footprint while continuing to operate from its Sydney base.

Section iconCompany Overview

Phone number
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
1997
Employees
1001-5000

Section iconFunding & Financials

  • $100M - $250M

    Brennan's revenue is estimated to be in the range of $100M - $250M

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