Designed by real estate agents for real estate agents

Meet the Team

The Reesio team has a combined 21 years of real estate brokerage and investing experience, along with 12 years of combined technology experience. This gives us the perfect blend of industry expertise and technology chops that is needed to build a beautiful, clean product that takes into account all of the legal and compliance features that agents require. We are forward thinkers who move fast and are passionate about listening to feedback from our customers.


Mark Thomas Co-Founder, CEO

Mark is a serial entrepreneur, and Reesio is the third tech startup and fifth overall company that he's founded/co-founded. Past startups include SayHired, which was a VC-backed voice analysis product for recruiters. Mark also owned a recruiting agency that he successfully sold in 2008, and he has owned a boutique real estate investment company for the past 10 years called Mark Thomas Realty Holdings. He also holds a California Real Estate Broker's license (BRE License #01908687). When Mark isn't busy working 80 hours a week to disrupt the real estate industry, he enjoys beating hustlers at the local pool hall, as well as cheering on the Green Bay Packers and Milwaukee Brewers (yes, he's originally from Wisconsin). You can also find him occasionally at the local San Francisco nightclub dancing to some good house music with a Maker's Manhattan in his hand.


Uyen Tran Co-Founder, Domain Expert

Uyen is a Real Estate/ Mortgage Broker and Investor who has spent the last 10+ years in the Real Estate and Mortgage industry. Uyen received her bachelors degree in Biological Science and had her first introduction to Technology working in the Biotech Industry helping to sequence the Human Genome. Naturally her next career move would be Real Estate right? … Well, in her pursuit to build a Real Estate Investment portfolio, she saw the advantages of understanding the intricacy of the Real Estate and Mortgage process. This quickly lead to a California Broker's license and a career in Real Estate and Financing. Early on in her Real Estate career, Uyen found herself asking why there wasn't a more effective way to handle the process. After years working for traditional Brokerages, she eventually left to open her own Real Estate and Mortgage Brokerage 6 yrs ago. Uyen believes there's a strong need for a better way to conduct real estate transactions, benefiting agents, sellers, and buyers alike.


Jonathan Mui Co-Founder, CTO

Jonathan recently graduated in Computer Science at Berkeley where he studied topics including Computer Security, Databases, and User Interfaces. While in school, Jonathan participated in several hackathons. His team even won an honorable mention in one! He appreciates a sense for design and strives to best combine that with hacking. Jonathan approaches life with a startup mindset, by taking risks and learning as much along the way.


John Irving Dulay Co-Founder, Chief Product Officer

John Irving comes from an Engineering and Business background, graduating from UC Santa Cruz with a degree in Information Systems Management. He also has 5 solid years of development experience, working on all parts of the development stack. Companies he has worked for include Live Nation,, and most recently OpenTable.

He first joined Reesio as VP of Engineering in May 2012 where he led a major product redesign/rebranding of Reesio. He also played a pivotal role in the launching of Reesio's current broker product and continues to apply his expertise to better the real estate transaction experience for everyone. John's philosphy is simple. Keep it lean.

Reesio Press

5214F Diamond Heights Blvd. #217 San Francisco CA 94131