Helen Yoo


Helen Yoo serves as the founder and CEO of Promise Total Services, Inc. She has a history of long lasting business partnerships and attributes her success to her years of experience in the janitorial service industry, her core values of being Proactive, Responsive, Observant, Meticulous, Innovative, Sensible, and Ethical, and her devotion to follow through with her commitments. As the name suggests, the company’s focus on reliability and customer satisfaction is the backbone of Promise TSI, resulting in solid communication, quick turn-arounds, and exceptional quality.

Since its founding in 2003, Promise TSI has grown from its humble beginnings to hundreds of properties and loyal employees in Dallas, Fort Worth, and Houston Texas. Because of Helen’s heavy involvement in all facets of the company, Promise TSI has the unique quality of functioning at the caliber of a global company while having the distinct personal touch of a family business.

Helen was born and raised in Seoul, South Korea with three siblings in a home full of music. She went on to major in piano, earning a Bachelor of Music at Yonsei University, then came to America to continue her studies at the master’s level with a harnessed focus on musicology. Helen is a proud mother of two and always aims to live an exemplary life of faith and gratitude.


M.M. Coursework in Musicology, Stephen F. Austin State University
B.M. in Piano, Yonsei University


Cell: 214-317-0387
[email protected]