Praxarus — Turning Clarity into Action.

Fractional CFO · Strategic Finance · Executive Advisory

Clarity in your numbers. Confidence in your strategy.

Praxarus gives growing businesses executive-level finance leadership — the insight, discipline and strategic thinking of a seasoned CFO, without the cost or complexity of a full-time hire.

20+ years in finance, transformation and strategy
Big Four professional services foundations
Senior Leadership roles within large organisations
Chartered Accountant qualified, independent advice

Why Praxarus

Executive-level finance, sized to your business.

Growing businesses deserve practical, high-quality commercial leadership. Praxarus makes it accessible.

  • Executive-level skills without the cost of a full-time CFO.
  • Forward-looking insight through planning, forecasting and decision support — not just historical reporting.
  • Support that scales as your business grows and your needs evolve.
  • Stronger processes, reporting and financial discipline.
  • Greater confidence in strategic, operational and investment decisions.

How I help

Three ways to bring senior finance thinking into your business.

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Fractional CFO

Senior finance leadership for a few days a month. I take ownership of your numbers so you can focus on running the business.

  • Monthly management and board reporting
  • Cash flow forecasting and working capital
  • Budgeting, forecasting and month-end oversight
  • Banking and lender support
  • Finance literacy training for owners and teams

Strategic Finance

Focused engagements that answer the big questions — where value is made, where it leaks, and what to do next.

  • Finance diagnostic and operating model review
  • Strategic planning and value delivery
  • Business performance, KPIs and profitability
  • Scenario modelling, capital and transaction support

Executive Advisory & Coaching

A trusted sounding board for owners, CEOs and finance leaders navigating growth, change and tough calls.

  • One-to-one executive mentoring
  • Finance team design and capability building
  • Risk, governance and board representation
  • Transformation and change leadership
Kara O’Sullivan, Founder and Managing Director of Praxarus

Meet the founder

Kara O’Sullivan

Founder & Managing Director · Chartered Accountant

I partner with business owners and leadership teams as a Fractional CFO and trusted adviser — helping them bring clarity to their numbers, improve financial performance and confidently execute their strategy.

With more than 20 years across Big Four professional services and senior leadership roles in large organisations, I bring executive-level finance, transformation and strategic expertise to businesses that need experienced support without the cost of a full-time CFO.

What I enjoy most is helping leaders cut through complexity, make sense of what’s really going on and gain confidence in the path ahead. My approach is practical, collaborative and focused on meaningful outcomes.

Take the first step

Confidence in your strategy starts with clarity in your numbers.

Book a no-obligation 30-minute discovery call. We’ll talk through where your business is today and where finance leadership could make the biggest difference.