Press Room

Ryan Expands Complex Property Tax Practice with the Addition of PetroTax Energy Holdings

Press Release Jan 11, 2018

Forms the Dominant Complex Property Tax Provider to Fortune 500 Energy Companies

Dallas, Texas – Ryan, a leading global tax services and software provider, has acquired PetroTax Energy Holdings, a leading complex property tax consulting firm representing several Fortune 500 energy companies. The firm is based in Austin, Texas and focuses primarily on the refining, chemical, biofuels, and oil & gas upstream and midstream sectors.

This transaction adds a highly specialized team of tax professionals with proven experience reducing property tax liabilities for many of the world’s largest energy corporations. Trey Novosad, Greg Kort, and Sebastian Rodrigano will join Ryan’s Complex Property Tax leadership team as Principals and ensure the highest level of quality and consistency across the Firm’s existing client engagements. 

“Ryan’s strategic addition of PetroTax Energy Holdings adds substantial capabilities to our Complex Property Tax practice to meet increasing client demand in the chemical, refining, and energy industries,” said Mark LoRusso, Ryan Principal and Complex Property Tax Practice Leader. “Our Complex Property Tax practice has captured significant market share and now supports many of the largest petrochemical companies worldwide.”

“PetroTax Energy Holdings marks another milestone in our strategy to build on our market leadership position as the largest Firm in the world specializing exclusively in business tax services,” said G. Brint Ryan, Chairman and CEO of Ryan. “Our clients will benefit tremendously from the unmatched complex property tax expertise of our newly combined team of tax professionals, and we look forward to delivering even higher levels of client service and results.”

About Ryan

Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes. With global headquarters in Dallas, Texas, the Firm provides an integrated suite of federal, state, local, and international tax services on a multijurisdictional basis, including tax recovery, consulting, advocacy, compliance, and technology services. Ryan is an 11-time recipient of the International Service Excellence Award from the Customer Service Institute of America (CSIA) for its commitment to world-class client service. Empowered by the dynamic myRyan work environment, which is widely recognized as the most innovative in the tax services industry, Ryan’s multidisciplinary team of more than 4,800 professionals and associates serves over 30,000 clients in more than 80 countries, including many of the world’s most prominent Global 5000 companies. More information about Ryan can be found at


Melodie Elliott
Director, Content and Communications Marketing