NAISMA’s Staff members provide a dynamic range of skills, experience and expertise toward invasive species management programs across North America.

Christie Trifone Millhouse

Executive Director

Christie oversees the management and financial stability of the organization, identifies new and creative ways to fulfill NAISMA’s mission, ensures that activities align with the Board of Directors’ goals and organization strategic plan, and supports the organization culture.


Elizabeth Brown

Government Relations Director
Elizabeth leads NAISMA’s science policy and advocacy efforts, as well as overseeing certification and professional development programs. She serves as the key liaison between NAISMA and many allied groups and is the lead coordinator for National Invasive Species Awareness Week (NISAW).

John Stabinger

Digital Project and User Support Director

John supports and develops NAISMA’s web properties, online learning systems and digital marketing.

Teagan Wilmot

Education and Prevention Manager

Teagan manages our education and prevention programs, including providing opportunities for professional development and tools for education and outreach through our PlayCleanGo campaign. Teagan has over a decade of experience working on invasive species prevention, outreach, and management in Washington State. She has a strong interest in data visualization and community-based social marketing and likes to look for new ways to make information more accessible and engaging to different audiences. Teagan grew up in Australia and currently lives on an island in Washington with her husband.

Michelle Huntley

Membership and Marketing Manager

Michelle manages NAISMA’s marketing and membership strategies. She is dedicated to intentional communications that support invasive species professionals. She has a wide array of experience in creating marketing campaigns, managing projects, fundraising, and coaching. Michelle enjoys working with a team of like-minded professionals on a mission for the good of North America’s environment. She lives in SC with her husband and pup.

Jodi Hougan

Program Assistant

Jodi is NAISMA’s Program Assistant. She supports multiple programs, mainly supporting NAISMA’s Weed Free Products Program and Biocontrol Committee. Jodi is passionate about making a difference and supporting our NAISMA community. She comes from a background in Administrative Support with knowledge of creating and managing policies and procedures, managing multiple businesses at once, and being a force for growth. 

Jodi joins NAISMA from her midwest home in Wisconsin. She enjoys watching her boys play sports and in her free time, she loves to spend time on the lake with her husband and two boys.

NAISMA is an Equal Opportunity Employer

NAISMA does not discriminate in employment on the basis of race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, military service, or other non-merit factor.