Christian Sloniec Business Advisor at Altitude Advisory

Christian Sloniec

Business Advisor

In his role as business advisor, Christian analyses, plans and executes a range of strategies to improve processes, increase profitability, identify opportunities and mitigate risk for his clients.

Maintaining strong client relationships is key to Christian’s approach. He is known for his professionalism, enthusiasm and proven track record of delivering results for businesses across a broad range of industries.

With a Bachelor of Commerce (Accounting) and Graduate Diploma of Chartered Accounting, his areas of expertise include:

  • Agribusiness
  • Business advisory
  • Taxation advice

Christian is also a member of Chartered Accountants Australia & New Zealand.

On weekends you will find him spending time with his family, playing soccer and cheering on the Adelaide Crows and Roosters.

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What our clients say

"We have been an Altitude Advisory client for 15 years. Andrew, Daniel, Rachiel and the team are excellent to work with, and are an important part of our overall team of advisors. Keep up the great work Altitude Advisory."

Luke Talbot-Male
Adventures Beyond

"We had been grappling with some concerns regarding succession, business strategy and family dynamics in our business. We couldn't have found a better financial, management, inter-relationship coach and mentor than Andrew Mattner. Andrew gives us his genuine attention, clarity and friendship."

Gloria Rowett
Marion Holiday Park

"Altitude Advisory are innovative. They understand the client's needs and provide sound advice. Their service is fit-for-purpose and of fair value.

Sean Buxton
Buxton Innicon

"Excellent service with friendly staff who always go out of their way to help with queries."

Carmel Button
Aberfoyle Campus Schools OSHC

"Altitude Advisory offers us a blend of strategic and compliance services built on a practical and really personable approach to service. Their readiness to support us with issues and opportunities as they arise and refer us to other services in their group when needed is invaluable. We also appreciate the way in which they look out for opportunities for our business without being prompted."

Kate Hannemann
communikate et al

"Andrew is more than just our accountant; he is our business adviser, strategist, planner and friend. I would be happy to recommend Altitude Advisory to anyone.”

Rodney Quinn
Quinn Transport

"Altitude Advisory works with us to find ways to improve our business unlike accountants we have used in the past who were only interested in taking the figures and doing our tax. They're always approachable and call us for a chat which shows us they're truly interested in our business."

Kerrie Stutley
Tumby Bay Foodland

"Timely advice, strategic planning, no stress service."

Brian and Glenys Baldwin

For the past 6 years, Andrew has assisted us with a strategic plan, and has coached and educated us to help our family business achieve significant expansion and change, including succession to the next generation.
Andrew's understanding of our business has been instrumental in achieving this. He has always been prompt in attending to our requirements and pleasant to deal with. I have no hesitation in recommending Andrew’s services and am very confident in his ability to carry out the task.

Andrew Polkinghorne
Kingara Farms