Home 9 About 9 NASTT Staff

Matthew Izzard, Executive Director

Matthew has been involved in the trenchless technology industry since the late 1980’s, holding senior positions in sales and business development with equipment manufacturers. He has written and presented over 40 papers around the world and involved in the publication of accredited training courses and international standards. As Past Chairman 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. Based out of Seattle, he has been a member of the NASTT since 2017, including the Centre of Excellence for Pipe Bursting. He is also active in the Pacific Northwest Chapter.

Outside of work he enjoys spending time with his family, stamp collecting and travel. Previously a professional soccer match-official, he supports Tottenham Hotspur and loves visiting sports stadiums around the world!

Contact Matthew

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!

Contact Jessie

Michelle Hill, Conference Services Director

Michelle joined the NASTT staff in December of 2011. Previously she was the Conference Manager at Benjamin Media, Inc. where she managed NASTT’s No-Dig Show from 2007-2011 along with other trenchless educational events. 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 Strongsville Early Childhood PTA, the Strongsville Food Bank, the Cleveland Sight Center, Cleveland Kids’ Book Bank, Ohio Pug Rescue and Make a Wish.


Contact Michelle

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. She is a volunteer at Wind Wolves Preserve and tries to hike and attend volunteer days as often as possible. 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!

Contact Jenna

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 projects, volunteer management, member and leadership development, community relations, student and young professional activities and association governance. With a B.A. in English/Writing Concentration, she enjoys writing activities including projects for the American Society of Association Executives (ASAE). She shares her skill set as a volunteer with ASAE, the North Jersey Home Schoolers Association and her church community. Residing in New Jersey with her husband, daughter and dog, she finds joy every day in her faith, family and friends.

Contact Carolyn

Kari Webb, Education Manager

Prior to joining NASTT, Kari worked as the Financial and Education Coordinator for CDI College in Red Deer, Alberta. She received her B.A. in Education at the University of Wyoming. Maintaining a passion for education, she has also worked as a teacher for various organizations. In her free time, you can find Kari searching for the best coffee shop around or relaxing with her dog and cat at home.

Contact Kari

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.

Contact Victoria

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. 

Contact Amy


Mailing: 22722 29th Drive SE #100, Bothell, WA 98021
Financial Services (Payments Only): PO Box 74358, Cleveland, OH 44194-4358
Phone: 888-388-2554

Contact Us