John Horner


Past performance is no guarantee of future success.

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Meet John

John has more than 15 years of experience in data warehouse and business intelligence implementations for a variety of industries including Retail & Distribution, Consumer Product Goods, Hi-Tech, Manufacturing, Professional Services and Utilities. He has expert knowledge of the business intelligence marketplace, having implemented solutions incorporating QlikView, SAP BusinessObjects, Cognos and Microsoft SQL Server BI.

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Professional History


  • Northumbria University


  • Armanino LLP
  • JK2 IMS
  • Factory Information Management Solutions
  • JJB Sports


Q. What is it about accounting and consulting that first drew your interest?
In industry, I wasn’t wired just climbing the corporate IT ladder toward a CIO role. I regularly interacted with the business departments and got the most enjoyment from listening to business challenges and helping teams find solutions. I still do.
Q. Describe your work style.
There is no substitute for hard work. Don’t ask anything of anybody else you would not be prepared to do yourself. And education is continuous. Every day is a new learning day and my style is to be open and willing to take on new challenges.
Q. What can we learn from our past in your business?
Past performance is no guarantee of future success. I do not feel constrained by historical evidence, it is of course a useful indicator but it is not a driver for future performance.
Q. What is the toughest business decision you have ever made?
Joining Armanino, though this is also the best business decision I ever made. I started my Business Intelligence U.S. business from ground zero in 2008, and the only person I knew in the U.S. was my wife. In less than four years we built the business to $1.25 million in revenue which I am very proud of. I was approached by Matt Armanino and Geoffrey Wayong to join Armanino with the opportunity to expand our capabilities beyond my current structure. By 2016 our Business Intelligence practice will grow tenfold and am very pleased they persuaded me to join.
Q. What’s your proudest moment?
My wedding day, although I am also very proud at our kids ongoing achievements.
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Industries Served
John's Thought Leadership
10 Reasons Why to Invest in a Strategic Business Intelligence Tool
Here are 10 reasons why investing in a data and analytics tool now will drive better strategic business decisions.

September 04, 2020