We are HighNote Labs.

Founded by veteran real estate professionals to provide tools that better the real estate profession.

With years of experience in the residential real estate brokerage industry, as top producing agents, brokerage owners and managers, and personally renting, buying, selling and owning real estate, we have deep insights into the myriad problems in the space today. Combine this knowledge and experience with a keen sense of design and engineering and you have HighNote Labs.

Our vision.

Building the next generation of tools to power the next generation real estate agent.

Real Estate doesn't have to be so hard. For agents, brokerage staff, brokerage owners, and the consumer, transacting real estate is quite frankly, a pain. HighNote Labs’s vision is to make it easier. HighNote Labs is where we ask "What If?" It is our breeding ground. It's our experimentation studio, our innovation hub, where we design and play with ideas that form great products that will change the way we all do real estate.

About HighNote’s Founder, Mark Choey

Mark Choey founded HighNote Labs with a vision to better the real estate industry: agents, brokerage owners, and ultimately the consumer. Bringing great products with more efficiency, transparency, and useful features to all.

Previously, Mark co-founded Climb Real Estate and grew it to being one of the top brokerages in the US and developed a reputation as an innovative, tech-forward, and new generation real estate brokerage. Mark led the strategy and development of Climb since its inception in 2006 as a sales group, later as an independent brokerage in 2010, and through to the successful acquisition in 2016 by NRT, the nation's largest residential real estate company.

Mark was also a real estate Top Producer and ranked in the Top 5 selling agents for condo and loft sales in San Francisco. Mark also served as co-chair of the SF Association of REALTOR’s MLS and Technology committee for two years and served on numerous customer advisory boards including Zillow and Trulia and other real estate technology companies.

Prior to starting Climb, Mark was a vice president in Citigroup’s CTO office where he actively evaluated technology innovation for Citigroup’s businesses. Mark also founded a dot-com startup (Gecko Travel) in Greater China focused on online travel and worked as lead product manager in a startup developing neural network-based fault-detection systems for computer PC boards.

Mark earned his Masters Degree with a specialty in the fields of Neural Networks, Artificial Intelligence, pattern recognition and computational finance - the statistical modeling of financial data, as well as wireless network engineering. Mark was awarded two patents: one in the field of telecommunication and wireless network traffic modeling and another in the field of wireless location based services and credit card fraud detection.

Say hello.

Want to work for us? Do you have a great business Idea that you want us to help with? Or do you simply want to give some feedback? Send us a message and we’ll get in touch with you.

Contact us directly.


548 Market Street #46205
San Francisco, CA 94104-5401