Ravalli Services Team

Our team here at Ravalli Services share the same vision, passion, and dedication for helping individuals with disabilities thrive in the communities around them.

Join Our Team

Our Leaders

Patrick Maddison

CEO

About Patrick

Patrick Maddison serves as one of two Chief Executive Officers here at Ravalli Services. He is a graduate of the University of Montana, School of Social Work and has dedicated his career to working with people with disabilities. His prior work also includes Director of Case Management for Opportunity Resources, Director of Services for Job Opportunity Based Services, Targeted Case Manager for AWARE and group home staff for Watson Children’s Shelter, where he found his passion for working with people with disabilities. Patrick forged his career to have the most positive impact on the greatest number of individuals with disabilities.

Jessica Warnken

Executive Director

About Jessica

Jessica began her Journey here with RSC in 2016 when she joined the team as our Executive Director. Prior to this she spent over ten years working for Opportunity Resources Inc. in Missoula. While there she held many different positions from Direct Care Staff to Associate Director of Special Services. Before perusing this line of work for a career Jessica found passion and joy in volunteering with Big Brothers Big Sisters, taking on several referred children that had developmental disabilities. She also cared for her cousin growing up who is diagnosed with cerebral palsy. This, she will tell you, has been her biggest inspiration in her life. Outside of RSC you will find Jess keeping busy with her two sons. She enjoys coaching for multiple sports teams here in Hamilton and also is a member of the baseball board of directors. On spare time you will find her by the water or out enjoying some of the great outdoor activities that Montana has to offer.

Sylvia Peterson

Director of Client Services

About Sylvia

Sylvia got started working in this field over 30 years ago when she joined RSC as a Graveyard Staff at one of our Group Home sites. She quickly found that the individuals she worked with were some of the most genuine, honest, and caring people that she had ever met. Her passion for ensuring the best quality of life for our Consumers continues to motivate her every day. When not at work you can find Sylvia outdoors at one of our National Parks or enjoying one of Montana’s many Hot Springs.

Liliana Pennington

Director of Operations

Tom Gambardella Jr

Director of Operations

About Tom

Tom began his journey working with individuals with disabilities in 2013 when his Father, whom also works for the same cause with RSC, told him how rewarding the work was. Tom took a position as a Graveyard at one of the Group Home sites but quickly discovered that the more he got to know the individuals he was serving, the more he wanted to do to help them succeed. He has enjoyed taking different positions that help him engage, assist, and motivate our individuals served. When not working for our individuals you can find Tom traveling and experiencing new places & activities with his family and dog.

Tom Toshach

HR Assistant

About Tom

Tom began working with individuals with disabilities over 6 years ago when he started here at RSC as a DSP working between different Group Home sites. He finds this type of work to be incredibly rewarding due to the positive impacts we are able to make for the individuals we serve. Tom currently oversees staff development/training and thrives in his role of ensuring Staff have the training and tools needed to provide the best supports possible to our consumers. Tom enjoys music (especially through concerts,) art, and travelling to new places outside of work.

Kimberly Duncan

Accounting Coordinator

Tara Lyons

Employment Specialist Lead

Sheila Pegg

Associate Director of Client Services

About Sheila

Sheila began her journey with RSC back in July of 2008 when she was looking for a job to fill some down time. She started working at RSC’s Work Activity Center 2 days per week. She quickly got to experience how rewarding this line of work is and began taking different positions that helped her become more involved in our consumers lives. To this day this job inspires her to be a better person and helps fuel her passion for ensuring that people, both with and without disabilities, are included and given opportunities equally.

Trey Winters

Associate Director of Client Services

Wade Holmes

IT Support Specialist

Mark Hammond

Maintenance

About Mark

Mark began working for Individuals with Disabilities back in 1981. In 1998 he joined our team here at RSC as a DSP. While still in place, Mark began overseeing our Recycling Program. Soon after he took a position to head RSC’s Maintenance department. He has now been with us for over 20 years. Outside of work Mark enjoys spending his time enjoying different types of art, writing, and being a typical gearhead.