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



Martha has been a full-time resident of Big Sky since 1988 where she has worked in real estate for approximately 20 years. She was the founder, broker, and owner of Big Sky’s top luxury boutique real estate firm prior to joining The Big Sky Real Estate Co. Her experience includes taking real estate projects from the beginning stages to turn-key product. Martha has consistently been Big Sky’s top sales broker. In 2015 she was honored as one of the top 25 luxury brokers in the country, and in 2012 and 2013 she was recognized as one of the top 50 luxury brokers in the country. She also consults on numerous real estate and development projects throughout Big Sky and Montana. 
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 lucky to have raised them in Big Sky. 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, riding horses, bird hunting 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.

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