City Impact began with a weekly Bible club and has grown into a fruitful epicenter for change, with programs and people who help transform youth and their families from the inside out.


City Impact empowers under-resourced communities through wholistic youth, family, and neighborhood development. We aspire to be the best in the world at seeing, investing in, and encouraging the unique strengths of under-resourced youth and families so that their leadership makes a lasting positive impact within their communities.

Through core values of relationships, faith, strengths-based leadership, empowerment, learning/teaching, and excellence, City Impact encourages transformation from the inside out.

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Meet Our Staff

Todd Bowman

Program Director

Todd is originally from Lincoln, Nebraska. Before working at City Impact, he was an 8th grade language arts teacher for 12 years. His favorite thing about City Impact is the deep commitment to vision to see under-resourced youth and families transformed.

He’s a huge Philadelphia 76ers fan and a major Survivor watcher. He’s watched every episode over all 30+ seasons. If he’s not watching basketball or Survivor, he can be found watching his daughter’s soccer games and engaging with all three of his daughters as they pursue their passions.

Brad Bryan

Founder & Development Director

In 1996, when Brad’s friends left on mission to Los Angeles, California and he stayed behind, it was a blessing in disguise. While his friends were gone, he learned about a single mom from Nigeria whose three boys were struggling in school.

Brad began tutoring them and suddenly realized he was fulfilling a mission right here at home. Brad’s experience provided the seed of an idea that he and his wife Carma, along with many amazing people, have grown into an abundance of loving service from the community, to the community.

Elena Cornwell


Elena is originally from Hilo, Hawaii. Her favorite thing about City Impact is it provides such a safe and fun place to be for kids. When she’s not working she can be found reading and being outside.

Her favorite food is chips and salsa (or when not vegan: mac and cheese). Her love for chips and salsa is a whole other level.

Jesse Dotterer

Operations Director

Jesse is originally from Mansfield, Ohio. Before working at City Impact, he’s been a stay at home dad, farm risk manager, and agricultural economist. His favorite thing about City Impact is its focus on people and grounding in Jesus.

When he’s not working he can be found camping, hiking, fishing, hunting, woodworking, and taking on home repair. Otherwise he’s traveling with his wife, sons, and friends or watching This Old House.

Lisa Guill

Communications Director

Lisa is originally from Kearney, Nebraska. Prior to joining the team at City Impact she worked for Union Bank & Trust for over nine years, helped run the Lincoln VITA Coalition, and served on the Board of Directors for El Centro de las Américas.

Lisa loves the purpose driven mission of City Impact, investing long-term in our neighborhood and sharing Jesus’ love throughout the community. She is motivated by connecting with others through a common purpose.

Outside City Impact, Lisa currently serves on the Board of Directors for the Asian Community & Cultural Center. She loves to spend time with her family, host gatherings with friends, travel, and feed her people!

Lizzie Mattox

Lizzie Mattox

Executive Director

Lizzie is originally from Lincoln, Nebraska. Before working at City Impact, she graduated from the University of Nebraska at Lincoln with a B.A. in History, Political Science & International Studies.

Her favorite thing about City Impact is the commitment to loving and serving the youth in our community and empowering them to do it for others. She gets all her energy from unifying a team and reaching a common goal.

When she’s not working, she can be found traveling, hosting dinner parties, or playing board games.

Reneé Meyer

city impact kids director

Reneé is from Houston, TX but has happily called Lincoln home since 2005. Before joining the City Impact team, Reneé worked in Women’s and College Ministry for almost 20 years, first at Texas A&M and then at Lincoln Berean Church.

Reneé’s favorite thing about City Impact is our focus on long term relationships: She loves connecting with the community, program families, and especially our City Impact kids. Her greatest hope is that every student who walks through our doors would know they are loved by God and have the opportunity to grow into all God made them to be.

Reneé loves language, different cultures, and traveling the world. When she’s at home, you’ll find her reading, writing, or enjoying time with her husband and three sons.

Ashley Murray

Communications Coordinator

Ashley is originally from Fort Wainwright, Alaska. She enjoys photography and baking. Her favorite thing about City Impact is that we truly and honestly care for each and every one of our families, children, and parents. Our love goes far beyond program participation.

When she’s not at City Impact Ashley is going to class at UNL earning a bachelors degree.

Dustin Oltman

Strengths for Life Mentoring Director

Dustin moved to Lincoln from Kansas City, MO as a kid. He and his wife and two sons moved to Springfield, MO in 2006. While in Springfield, his wife gave birth to their daughters. They returned to Lincoln in 2010, a family of six and pregnant with their 5th child (3rd son).

Dustin’s favorite thing about City Impact is mentoring, which is what first brought him here as a volunteer SFL mentor. His passion for mentoring has remained constant in his journey at City Impact.

His favorite hobbies are working out, music, and family. His favorite foods are Paleo and Whole30 recipes.

Angela Pillow

Relationship Ambassador

Angela was born in North Carolina but grew up in Mobile, Alabama. She moved to Nebraska when she was in 5th grade and has been here ever since. Before working at City Impact, she worked at Time Warner Cable in Public Access TV Channel & Tech Support and their Front Desk.

Her favorite thing about City Impact is serving the community where she grew up. When she’s not working she can be found dancing and taking videos and photos. Her favorite book is the Bible and her favorite story in the Bible is the story of Joseph. She loves God and loves people which makes her amazing at her job and connecting with everyone around her.

Seth Roepke

Youth ministry director

Seth was born in Norfolk, Nebraska but grew up in Lincoln. His degree from UNL is in Communications Studies and Psychology. Prior to City Impact, Seth worked for seven years with Campus Life at Lincoln High and in various other LPS schools.

Seth loves City Impact’s focus on wholisitic community change starting with the spiritual life of youth. He is passionate about grounded spiritual transformation and the strengths-based approach of our mission. His desire is that every young person who walks through our doors will know their own value and the hope of the Gospel.

In his free time, Seth enjoys spending time with his wife, Hannah, playing with their dogs (Bowe and Fin), and watching The Office on Netflix. Basketball is a way of life for him, from cheering on LeBron James to shooting hoops with friends. The obsession is real! 

Stacy Umbenhower

Accountant & Program administrator

Stacy is originally from Grand Island, Nebraska and moved to Lincoln for college. Before working at City Impact, she worked at UNL and Nebraska Children & Families Foundation in finance and accounting.

Her favorite thing about City Impact is the mission of seeing people transformed from the inside out through a relationship with Jesus Christ. Stacy has over 20 years in finance and accounting experience and loves to work with numbers and handle the details behind the scenes.

When she’s not working, she can be found at the ball fields watching her kids playing baseball and softball, or at her favorite gym doing group fitness. She’s a huge St. Louis Cardinals fan and loves watching CSI and Criminal Minds in what’s left of her spare time.