The ACET Team

ACET is a woman- and minority-owned small business enterprise based in Minneapolis, Minnesota. Our staff have extensive experience in conducting high-quality research and evaluation in a variety of settings.


See the bios below to learn more about each ACET team member.

Stella SiWan Zimmerman

President and Founder

Stella has completed many culturally tailored evaluation projects during her 23-year career as president of ACET. She has a master's degree in Policy Analysis and Program Evaluation.

Jolene Roehlkepartain

Communications Manager

Jolene has more than 35 years of expertise in strategic communication, developing dissemination plans and creating social-media campaigns. She has a bachelor's degree in Communications and English.

Ashley Kitchen

Research Associate

Ashley has experience in conducting high-quality qualitative research with Tribal organizations and BIPOC populations. She has a Ph.D. in Politics and International Relations.

Rachel Engh

Research Associate

Rachel designs participatory and equitable mixed-methods evaluation approaches to help clients understand and comm-unicate impact. She has a master's degree in Urban and Regional Planning.

Lisa Perkins Smith

Administrative Associate

Lisa's expertise focuses on implementing internal initiatives, assisting with
data-collection efforts, and graphic design. She has a bachelor's degree in
English and Elementary Education.

Amy Gustafson

Data Coordinator

Amy facilitates, coordinates, and delivers data-related tasks. She specializes in working on both quantitative and qualitative data. She has a bachelor's degree in Biomedical Engineering.

Isaac Ezra Jennings

Administrative Assistant

Isaac’s background is in operations management, logistics, program development, and community relations. He is working toward a master’s degree in Public and Nonprofit Administration.

Carlos Gallego


Carlos does community, grassroots work, and he builds cultural connections with underserved communities. He has a master’s degree in Elementary Education.

Trisha Netsch López

Junior Research Associate

Trisha has a 9-year career of conducting qualitative research on culturally and linguistically appropriate policies. She is finishing her Ph.D. in anthropology and a master's degree in Public Health.

10700 Normandale Blvd., Suite #201, Minneapolis, MN 55437

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