About Citadel Group

With a remarkable track record as a trusted provider of Secure Application Development and Workforce Services, we proudly stand at the forefront of innovative solutions to meet your every need.

Company overview

Citadel Group has an extensive track record providing cutting-edge bespoke workforce and secure IT solutions to a number of government and corporate clients.

Our work with the Australian Federal Government spans many decades where we have provided leading edge technology platforms and services for critical government services across numerous agencies over the years.

For Defence, Citadel Group created and continues to manage Australia’s largest enterprise content management solution, which holds over 500 million secure objects including corporate files, reports, personnel records, and operational information. This is delivered seamlessly to users wherever they may be using a range of authentication, security, workflow automation and digital integration solutions.

In addition to delivering critical platforms and services, our workforce augmentation and recruitment services have provided security cleared staff for many projects and agencies over the years in both Defence Industry, Defence and general ICT roles to ensure the successful implementation of projects. 

With a remarkable track record of nearly three decades, we proudly stand at the forefront of innovation, safeguarding your valuable information like no one else can.

Our history

Citadel Group was founded by Mark McConnell and Miles Jakeman, ex- military officers who worked in the private sector for a decade before merging their respective small consulting firms to form Citadel Group. The company quickly began developing a substantial footprint managing complex IT projects across Federal and State Governments, also making strong moves into the private sector. In 2014 Citadel Group successfully listed on the Australian Stock Exchange via an initial public offering. In 2019, it acquired leading management and advisory companies Gruden and Noventus, bolstering its stable of leading-edge services. In December 2020, Citadel Group was acquired by Pacific Equity Partners (PEP), a leading Australian private equity firm with a strong track record of successful investments across target industries including technology, education and healthcare. Citadel Group continues to provide expert services to its Government and private sector clients and invest in its growth plans under the ownership of PEP.

Our Companies

Gruden is an award-winning digital & enterprise software development company  building world-class digital assets and platforms for major corporations and Governments.

Noventus solves complex problems across LAND, SEA, AIR and JOINT domains. Our capability and capacity is derived from our extensive Defence and aerospace industry experience.

Citadel People provides outstanding ICT recruitment services to both their clients and candidates, underpinned by mutual trust and adherence to the highest professional standards. 

Todd Trevillion | General Manager

Todd is an accomplished serial technology entrepreneur with a demonstrated track record in building high performance teams across Asia-Pacific, generating and closing complex high value technology services and software sales to large enterprise organisations. Skilled in all aspects of company operations and management across the technology space – both private and public – Todd excels in deal-shaping and negotiation, interstate or offshore setup and growth, high value sales management, company strategy and expansion.

Leonie Knight | National Business Manager

With over 20 years of experience in building high performance businesses, Leonie has developed critical growth strategies to deliver improved company performance and build market leading offerings and solutions to overcome the challenges of the changing landscape. As an industry leader in HR/Recruitment and Workforce Services, she develops Sales Strategies & Service Catalogues that deliver significant financial and operational value to customers.