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Accounting & Audit

Calvin F. Leong – 2019 20 Under 40 Honoree

Calvin Leong

Calvin F. Leong

Product Innovation Manager
Thomson Reuters
Ann Arbor, MI

Career highlights:

  • Creator and developer of the FirmFlow API utility which is a program that retrieves data through the FirmFlow API and stores it into a local SQL database. As a result, you can run specific queries and connect the SQL database to different business analytic tools to gain insights about your FirmFlow data.
  • Partnering with Microsoft to release the first Thomson Reuters Tax and Accounting Connector into their Microsoft Flow ecosystem. Leveraging Microsoft Power Platform is a great way for firms to easily integrate API’s.
  • Speaker at various events including Thomson Reuters Synergy, association meeting, trade shows and more.
  • Designed and executed client workshops to create new and enhance product offerings.
  • Partnered with firms to create processes related to Thomson Reuters products with the idea of automation leading the way.

Favorite books/websites/speakers that you find influential:


  • Good to Great – Jim Collins
  • Sprint – Jake Knapp


  • Alexis Ohanian – Co-founder of Reddit – I especially can relate to his technology drive and working as a “business dad”

What websites/magazines do you use to keep up on news of the accounting profession?

  • CPA Practice Advisor
  • Accounting Today
  • Business Insider


See all of the “20 Under 40” honorees for 2019.