Our clients receive senior-level attention from the best and brightest professionals.  

River Cities stands for the highest levels of integrity, discretion and professional skill. Our long-term commitment to clients is the driving force of our business. We will not accept an engagement unless we are confident that we can provide the utmost attention, service and results.

Nathan Janoff Managing Director


Mr. Janoff was born and raised in Mexico City and received his BA in Economics from the University of Pennsylvania. Mr. Janoff started his career in investment banking at Banc of America Securities, and subsequently joined Goldman Sachs where he spent eight years in the firm's Investment Management Division. In 2010, Mr. Janoff joined a private investment firm where he currently serves as the CIO and focuses on niche investment opportunities across geographies and asset classes. 

Rishi Gautam, CPA Managing Director

Mr. Gautam was born in Hartford, Connecticut, and raised in New York City. Mr. Gautam is a licensed CPA and received his BBA in Accounting from the University of Miami. Mr. Gautam joined Goldman Sachs immediately after undergraduate studies and has 13+ years of continuous experience in private wealth advisory and strategic investments. In 2010, Mr. Gautam joined a private investment firm where he currently serves as the CFO and focuses on private market investment opportunities in the U.S.

Jim Petkas, CPA: Senior Advisor, Healthcare

Mr. Petkas is a Florida-native with over 30 years of accounting, corporate finance and executive experience in healthcare services. Mr. Petkas is a licensed CPA and received his BS in Business Administration (Accounting) from the University of Florida. Mr. Petkas spent 12 years at Ernst & Young and then joined HCA where he spent more than 20 years in various executive capacities, most recently as CFO of HCA International.  

Guillermo Argüello: Senior Advisor

Mr. Argüello was born in Louisiana and raised in Mexico, Argentina and Venezuela. He received his BS in Accounting from Loyola, and then received his MS in Taxation and an MBA from the University of Miami. Over the past 20 years, Mr. Argüello acquired significant expertise in valuations, financial management consulting and venture capital from a variety of industries, including: energy, hospitality, private-label retail, franchises, software, healthcare and education.