About Us

Martha Johnson Real Estate has continued to be one of the top luxury real estate brokers in the country, achieving top marks in the real estate business and consistently creating outstanding results for our clients.

Martha Johnson

VP Sales – Founding Broker



From Chester Springs, PA, Martha has been a full-time resident of Big Sky, Montana since 1988 where she has worked in real estate for over 30 years. She was the founder, broker, and owner of Big Sky’s top luxury boutique real estate firm prior to selling it to and joining The Big Sky Real Estate Co. She is a sought after broker on all Big Sky including taking real estate projects from the beginning stages to turn-key product. Martha has consistently been Montana’s top ranked sales producer as well as being recognized as one of the top luxury brokers in the country individually brokering over one billion dollars in real estate during her career to date. She has an established reputation for delivering impressive results in the sales, marketing and launch of resort, residential, commercial and ranch sporting properties in Big Sky and Southwest Montana. She represents individual property buyers, sellers and developers and is a trusted advisor and strategist. Her warm and enthusiastic personality makes it a joy to work with her and her depth of knowledge and experience is impressive as she confidently and respectfully navigates complicated transactions. She is honored as one of the top 25 luxury brokers in the country. She also consults on numerous real estate and development projects throughout Big Sky and the Country. Martha currently sits on the Advisory Board for First Interstate Bank (FIB), Board of Directors, Spanish Peaks Community Foundation (SPCF) and has taught weekly Warren Miller Freedom Foundation Entrepreneur classes at Lone Peak High School. She has been a wrangler at Lone Mountain Ranch, a ski instructor, she started and owned Serendipity’s (First Espresso Machine in Big Sky!) and Huckleberry Café, and so much more in Big Sky, the consummate Entrepreneur!

Martha is the exclusive listing broker for Spanish Peaks Mountain Club and actively supports and sells real estate within the Yellowstone Club, Big Sky Resort, Moonlight Basin, Big Sky, and the surrounding area. Martha and her husband Scott have two boys and feel incredibly lucky to have raised them in Big Sky. She is grateful for the love and support of her family & friends and warmly attributes her success to their support. When she’s not helping clients find their dream property in the mountains, she’s busy with her boys and enjoys alpine and nordic skiing, fly fishing, golfing, hiking and boating on Montana’s Hebgen Lake.

Sarah Braun

Sales Associate | Assistant to Martha Johnson 

C: 406.581.3139

O: 406.995.633


Born and raised in South Dakota, Sarah earned degrees in Marketing and Website Design and then ventured into city life in Minneapolis to pursue her career. Her love of the outdoors left her longing for blue skies and open spaces and she soon moved to Vail, CO, where she began her career in real estate marketing at the Ritz Carlton of Bachelor Gulch. In 2004, she relocated to Big Sky working as Marketing Director for The Club at Spanish Peaks. Sarah owned and operated a credit card processing brokerage before returning to the real estate industry and joining Martha at The Big Sky Real Estate Company. While raising her daughter, Tehya, Sarah has been an avid supporter of education and the arts, serving on the Booster Club Board, as well as the Student Activities Board. Still an avid outdoor enthusiast, you will find her pursuing her passions on the slopes while alpine and nordic skiing, backpacking, and mountain biking the trails with her dog.

Start Your Search Today