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Ground Team

Nathalye Balistrire CEO of ZEROGROUND

Nathalye is a Venezuelan American licensed professional counselor with majors in Psychology and Business Administration. She is bicultural and bilingual (English/Spanish) and specializes in providing children and families with mental health therapy, helping them to overcome the barriers of disability, language, and culture. Nathalye’s mission is to provide resources and guidance to young people and families to attain “An equal world.” Nathalye is a strong believer in the power and value of education because it was her own academic experience that helped her understand and seek equality by becoming a strong, independent woman. As a result, her true passion lies in working with communities where the children and families are at risk for issues like slavery/trafficking, addiction, mental illness, and the perpetuation of stigmas and victimization. An essential aspect of her campaign is supporting communities in taking the labels of race, color, gender, and age back to zero ground, enhancing their potential to the fullest. She has also designed a self-tutoring program to help people of all ages learn how to read and write in times of crisis to enhance their education. Her dream is to be able to provide this self-tutoring program to communities in need.

Nathalye was recognized as an outstanding student for the Colorado Health Foundation Professional Scholarship. This achievement was awarded for presenting a critical voice in how the level of education and the surrounding culture play an influential role in mental illness. Central Colorado health initiatives dig into the issue of inequity and its connection to poverty, unemployment, immigration, geography, and behavioral health. Nathalye feels that she has achieved a place in her life where; “When you are no longer identified with any labels you enhance your understanding of others, adopt new values, and learn to respect people for who they really are, it’s like opening the doors to reach more people.”


Sarah Hays

Is a Licensed Clinical Social Worker in the state of Colorado. She received her Bachelor of Arts degree in Psychology at Colorado Mesa University in 2014. She then went on to complete her Master of Social Work degree from the University of Southern California in 2017 and obtained her license in February of 2020. Sarah has worked in mental health for 7 years with the last three years spent providing counseling services. In the past, she has worked in an inpatient setting at West Springs Hospital and in crisis services at Mind Springs Health in Grand Junction, CO. She currently works as an integrated behavioral health clinician at Primary Care Partners. All such settings have allowed Sarah to work with clients of all ages, children ages 7+, through the rest of the lifespan. Currently, her practice is focused on adolescents through older adulthood. She has a wide range of experience with adolescents, families, and adult patients. In treatment, Sarah utilizes CBT, DBT, Solutions-Focused Therapy, Motivational Interviewing, Mindfulness, EMDR, and Trauma-Informed techniques, among other evidence-based modalities. Sarah’s goal is to provide a safe, positive environment and experience that allows her clients to thrive by leading a meaningful, goal oriented, fulfilling life they are proud of. In her spare time, Sarah enjoys self-care activities such as engaging in sports, exercise, and outdoor activities. She also enjoys spending time with family, friends, and her dog, Charlie.


Lizbeth Manzo

(she/her) is a ZEROGROUND Care Coordinator. Lizbeth is an asset to our company, providing courteous and professional customer service to the people we serve, our staff, and online visitors. Lizbeth provides on-call services including, but not limited to, maintaining schedules, answering phones, developing flyers and other publicity documents, producing reports, tracking company data, and offering general administrative support to our various teams. Lizbeth’s essential functions are to create a positive experience for the community of people we serve. Lizbeth receives and screens the clinic’s telephone communications, ensuring that callers are directed to the appropriate destination in a timely fashion. She is trained in and certified with HIPAA rights, ensuring the protection of all clients’ confidentiality and privacy. Lizbeth also verifies demographic and insurance information for each client. Lizbeth achieved her High School Diploma and is certified as Administrative Assistant, skilled in Customer Service. Additionally, her roles as a woman, wife, daughter, friend, and mother of a child with mental disabilities and mental illness, enables her to apply her experience to provide an exceptional sense of empathy and care for your case.

Contact Lizbeth:

Phone: 720-473-0363



Mariangeles Gudino

(she/her) is our start Volunteer. She is a professional with more than 10 years of experience in customer service and administration. Over the last few years, she has focused on training in child development and young people with mental health issues, and she continues to develop herself to improve her skills and provide the best service for the community of Zeroground. She has a diploma level 3 in travel and tourism from Bournemouth and Poole college in United Kingdom and a level 3 diploma in children’s and young people’s mental health. Mariangeles is looking forward to meeting you and helping you with any queries you may have.

Jennifer Tierney

Parker Neurofeedback Jennifer Tierney

After being introduced to NeurOptimal® Dynamical Neurofeedback and having participated in regular sessions, Jennifer became an avid supporter of the system and process. So much so that she decided to become advanced certified and start a neurofeedback practice, leaving behind a life as an executive in the corporate world. Jennifer moved beyond the stressful environment she felt had become her "normal" realizing, through the use of NeurOptimal® sessions, that this was possible, and stress did not have to be the "normal".

Since then, Jen has become a representative for NeurOptimal® and recently opened a second neurofeedback business, COR Neuro, LLC, focused on providing neurofeedback to companies who support the use of sessions for their employees. Additionally, Jennifer is a strong advocate for the mental health community and her business has partnered with Zero Ground, a bilingual mental health center for children and families, to offer neurofeedback sessions to marginalized community members for free. In addition to Zero Ground, Jennifer has upheld a partnership with the Second Wind Fund, a nonprofit that aims to decrease the incidence of suicide in children and youth by removing the financial and social barriers to treatment. And lastly, Jen offers discounted sessions to veterans and local first responders as well.

Jennifer-Tierney pic

Gaby Zesati

is a proud Mexicana passionate about fashion. In 2018 she opened her own boutique: THAT'S VOGUE. Not satisfied with that, she felt that something was missing. She not only wanted to dress people, but to impact them from the inside out. It was there that she decided to study consulting and psychology of personal image and thus EMPOWER INSIDE-OUT was born. She works not only on the exterior but also on the interior emotions. That passion for fashion and nature led her to create the Zesati upcycling brand, a brand that takes second-hand luxury to another level.