A Practice Built on Direct, Senior-Led Delivery

Why Corellr exists

Corellr exists because Not-for-Profit, Education, and For-Purpose organisations deserve financial systems built by people who've actually done the job, not a generalist consultancy applying the same template to every client.

How we work

Every engagement is led directly by a senior practitioner. That's a deliberate choice. It means the person scoping your engagement is the same person doing the work and standing behind the result.

Corellr was founded by Andrew Lonngren, a former Finance Executive and systems specialist who has worked with some of Australia's largest charities.

Having led finance functions and navigated complex operational environments, Andrew understands first-hand where systems break down between teams and processes, and specialises in modernising workflows, untangling data bottlenecks, and designing robust board reporting and financial dashboards that give leadership teams immediate, reliable visibility.

Andrew has hands on experience implementing and optimising core accounting, ERP, and timesheet platforms, including Sage Intacct, Xero, BCC Advertising System, Deltek WorkBook, Pegasus, and Harvest.

Rather than applying rigid, off the shelf templates, Corellr builds tailored architectures that fit how organisations actually operate.