NASTT Staff
Matthew Izzard, Executive Director
Matthew has been active in the trenchless technology industry since the late 1980s, serving in senior sales and business development roles with equipment manufacturers. He has presented papers globally and contributed to the development of accredited training courses and international standards.
As Past Chair of the United Kingdom Society of Trenchless Technology (UKSTT) and his activity as the Vice-Chairman of the International Society of Trenchless Technology (ISTT) he has a broad base of experience and knowledge.
Since 2020 as Executive Director, he is responsible for the organization’s strategic direction, operations, and industry engagement. Based in Seattle, outside of work he enjoys spending time with his family, stamp collecting and traveling. Previously a professional level soccer match-official, he supports Tottenham Hotspur and loves visiting sports stadiums around the world!
Jessie Clevenger, Conference & Sales Director
Jessie joined the NASTT staff in October of 2019 as the Regional Chapter Relations Manager and was promoted to Conference & Sales Director in April of 2024. Prior to joining NASTT, she was working as the Conference and Seminar Manager for Meeting Expectations for 3.5 years. Before joining the association management industry, Jessie was a wedding planner in Knoxville, TN after she graduated from the University of Tennessee (Go Vols!). Jessie calls Charlotte, NC home with her husband and two dogs, Mellie and Charles. When she’s not in her home office, you can find Jessie trying new restaurants in Charlotte, decorating her house prematurely for every upcoming holiday, or, most likely, eating her favorite food – soup!
Michelle Hill, Conference Services Director
Michelle joined the NASTT staff in 2011 after managing the NASTT No-Dig Show with Benjamin Media, Inc. since 2007. Before working in association management, she coordinated the production side of corporate events and concerts, as well as worked as a catering manager for special events and weddings. She received her B.S. in Communications from Ohio University where she planned her very first special event — a comedy night with Jay Leno.
Complementing her busy career, Michelle enjoys volunteering her time with the Cleveland Food Bank, Wreaths Across America, Cleveland Kids’ Book Bank and coaching her son Cole’s soccer team. She is extremely passionate about supporting educators through the Strongsville PTA, who recognized her with the Ohio PTA Achievement Award in 2024. Her friends and family will tell you she found her calling back in 2022 when she started slinging novelty ice cream treats out of an old school ice cream truck for Prayers From Maria, an organization focused on raising research money for childhood brain cancer.
Jenna O. Hale, Marketing & Brand Manager
Jenna joined the NASTT staff in June of 2013. She has worked with trade shows, branding and marketing in the trenchless and construction industries for over 20 years. She received her B.A. in History from the California State University at Chico. Jenna volunteers at and/or supports various animal rescue, environmental and civic charities. Jenna serves on the Board of Directors for the Friends and Newcomers of Bakersfield. She is also an avid reader and an active member of her book club. In her down time Jenna can be found in the kitchen cooking up vegan treats for her family and friends, playing with her (many) cats, reading, planning her next Halloween costume or at the beach or a concert with her husband!
Carolyn Hook, Membership Outreach & Database Manager
Carolyn joined NASTT in December of 2018 bringing her extensive career in association management to the team and to NASTT members. Her expertise includes a breadth of membership initiatives, database management, volunteer engagement, member and leadership development, community relations, student and young professional activities and association governance. Committed to life-long learning, she is active with the American Society of Association Executives (ASAE) and Association Women Technology Champions (AWTC) and attends monthly webinars on membership, engagement, technology and more. She shares her skill set as a volunteer with the North Jersey Home Schoolers Association and her church community. Residing in New Jersey with her husband, daughter and dog Jaxson, a very good boy, she finds joy every day in her faith, family and friends.
Kari Webb, Education Manager
Kari joined the NASTT staff in December of 2021, bringing a wealth of experience from her previous work in both public and college education. Previously employed as an educator and financial manager, Kari is excited to bring new methodologies and strategic thinking to NASTT. She received her B.A in Education at the University of Wyoming but decided to escape the snow and now calls Charlotte, NC home. In her free time, you can find Kari searching for the best coffee shop around, exploring the endless markets in the Queen City, or hanging out with her dog, Axel!
Victoria Cox, Regional Chapter Manager
Victoria joined the NASTT Staff in April of 2023 as the Regional Chapter and Events Coordinator. Victoria has a B.A. in Communication Studies from Central Washington University and spent 7 years in the Real Estate industry prior to joining NASTT. Victoria is a skilled communicator with a personable demeanor. When she’s not busy helping our Regional Chapters or setting up event registration, Victoria loves to indulge her passion for travel and spending time with friends. She’s always on the lookout for new experiences and opportunities for personal growth. Her furry companion, Kai, provides much-needed breaks from her busy schedule for cuddles and playtime.
Amy Shipp, Conference Program Specialist
Amy joined the NASTT team in April of 2024 as the Conference Program Specialist rounding out the conference services team. Her extensive non-profit experience encompasses volunteer management and member engagement, meeting and event coordination, education and the delivery of training and development programs. Amy is motivated by cultivating relationships, delivering exceptional service, creative problem solving, and leveraging technology to meet business needs. A passionate volunteer, she brings her enthusiasm and skills to her children’s Parent Teacher Organization. Amy was born and raised in Northern VA and returned to her home state to put down roots and grow her family. She lives in the Shenandoah Valley with her husband, daughter, son and 5 kitties (yes, 5). When she’s not in the kitchen cooking and baking for loved ones, you can find her out tromping in nature with her family and counting down until the next visit to the lake or beach.
NASTT
Financial Services (Payments Only): PO Box 74358, Cleveland, OH 44194-4358
Phone: 888-388-2554