SIOP Administrative Office

The SIOP Administrative Office team remains partially remote. Please send inquiries to or call 419-353-0032. Extensions for staff members can be found with their profile below.

Contact Information:

SIOP Administrative Office

440 E Poe Rd, Ste 101
Bowling Green, OH 43402
Phone: 419-353-0032
FAX 419-352-2645

Administrative Office hours are 8:00 a.m. to 5:00 p.m. Eastern time.


Tracy L. Vanneman, CAE, Executive Director

Tracy L. Vanneman, CAE, has worked in the association and nonprofit management industry for 15 years, with experience in sponsorship, exhibits, meeting planning, governance, membership, and volunteers, obtaining her Certified Association Executive (CAE) credential in 2018. Tracy is passionate about pursuing SIOP’s mission and building collaborative relationships between member-volunteers, the Administrative Office staff, and other SIOP stakeholders. 

Tracy was selected for the position of SIOP Executive Director in April 2020, after having served as Interim Executive Director since June 2019, and working in myriad roles for SIOP from 2008-2018. She had a brief hiatus from SIOP in 2018-2019 working for the Council of Engineering and Scientific Society Executives (CESSE). Prior work experience also includes nonprofit development, event planning, and print advertising.

Tracy enjoys traveling with her family and consuming some combination of coffee, wine, and dark chocolate. She is a proud SIOP Foundation donor, member of the American Society of Association Executives (ASAE) and Ohio Society of Association Executives (OSAE), and an advocate for her children’s beloved school, the Montessori School of Bowling Green. She lives with her husband, Jake (a high school teacher), and their four children in Bowling Green, Ohio.

You can find Tracy on LinkedIn here or email Tracy here. Phone Ext. 102

Jenny Baker, Sr. Manager, Publications and Events



Senior Publications and Events Manager Jenny Baker prepares the conference program, and many other print and web materials. She also handles much of the conference logistics: designing and ordering t-shirts, designing the conference bag art, preparing printed materials and signage, and shipping all materials to the conference site, as well as preparing artwork as needed. She holds a bachelor’s in Scientific and Technical Communication from Bowling Green State University. Jen and her husband Duane live outside BG in the country with their two dogs, assorted cats, two donkeys, and a goat. Jen enjoys gardening, baking, attending concerts, shopping, camping and traveling, and reading.

Email Jenny here. Phone Ext. 106


Timothy Bishop, Program Development Manager

Tim Bishop

Timothy serves SIOP as the Program Development Manager. His responsibilities include managing the Fellows, Awards, continuing education, and Diversifying I-O Programs. He brings 10 years of experience managing association and nonprofit programs prior to SIOP- earning credentials from the Institute of Credentialing Excellence (ICE) for program management in 2018. He is a Washington, D.C. native who, in addition to serving SIOP's mission, has a passion for volunteering and mentoring. He is also an animal lover. He enjoys traveling, experiencing different cultures, trying new food, and learning about the world from different perspectives. 

Email Tim here. Phone Ext. 101


Scott Case, Business Process Manager

Scott is the Business Process Manager. His responsibilities include configuration, use and troubleshooting of the NOAH association management software system. He also works closely with project owners to understand document business process and project requirements and offer solution options. He also provides support to assist users with installs, updates, and training on current/new application systems. This also includes the creation of documentation for all SIOP members. Prior to SIOP he spent over 20 years in higher education.

Email Scott here. Phone Ext. 105


Jamie Keblesh, Finance and Operations Manager

Jamie Keblesh is SIOP’s Finance Manager and will be working on annual budgets, financial reports, and providing support to the Financial Officer and Portfolio Officers. She was previously with ProMedica Health System for six years in Managed Care. The majority of her work involved managing a PHO, Lenawee Clinical Partners, but was also involved with credentialing and contracting for the system. Jamie has her BA in psychology from BGSU and her MBA in finance from University of Toledo (Go Falcons!). She serves as a Board Member for The Avalon Foundation and is a Girls on the Run coach. Jamie has two amazing daughters, Brylee and Cameran. In her free time, she enjoys traveling, going to concerts, and having fun with her girls..

Email Jamie here. Phone  Ext. 108


Aiyana Lopez, Membership Development Manager

Aiyana Lopez

As the SIOP Membership Development Manager, Aiyana Lopez is focused on project and committee initiatives that further the Society’s strategic plan and membership value proposition. Her responsibilities include membership recruitment/retention/recapture, new market exploration and analysis of metrics/trends. She also serves as the primary liaison to the Membership and Career Services Committees.

Aiyana has over 15 years of association industry experience with an emphasis in membership, event planning, chapter relations and database management as well as holds a Certified Meeting Professional (CMP) credential. She recently left the Chicago area to become an Austinite where she enjoys the warm weather, fabulous food, beautiful scenery and an abundance of hospitality.

Email Aiyana here


Larry Nader, IT Manager

Larry NaderLarry Nader is the IT Manager at SIOP. His responsibilities include database, network, computer, and software management, and helpdesk for SIOP members. He has been with SIOP since 1998. Prior to SIOP he owned and operated a radio station in California for 5 years and a printing/graphic design business for 10 years. He spent 2 years as a technical writer for the Microwave Instruments Division (MID) of Hewlett Packard (now called Keysight Technologies). He has a BA in Communications from the College of Wooster. He attained an FFC general operator’s license to be a radio station Chief Engineer. He has over 30 years of experience with computer technology.

Email Larry here. Phone Ext. 103


Mark Peterson, Web Content Specialist

Mark PetersonMark Peterson is SIOP’s web content specialist, responsible for planning and integrating all activities related to the design, development, and implementation of SIOP web applications. He previously enjoyed a diverse career as a touring musician and graphic designer. Mark graduated with a BS in Technology in Visual Communication Technology from Bowling Green State University with his focus in interactive media. Mark is a dog lover, history buff, avid reader, and hockey fan.

Email Mark here. Phone Ext. 110


Susan K. Rogers, Business Development Manager

Susan Kesling Rogers, CAE, is Business Development Manager at SIOP. She is responsible for the partner program (exhibits, sponsorships, advertising), I-O Job Network, membership and oversight of continuing education offerings. Susan is a Certified Association Executive (CAE) and is accredited by the International Association of Business Communicators and the Public Relations Society of America. Prior to SIOP, she worked in marketing and membership at the Society for Manufacturing Engineers (SME) and the Society for College and University Planning (SCUP). She also worked in marketing communications for Washington University in St. Louis and the University of Michigan-Ann Arbor. Susan is married to Rick Rogers, PhD, an historian who teaches at Eastern Michigan University in Ypsilanti, MI. She enjoys travel, museums, historical sites, jigsaw puzzles, reading fiction and autobiographies as well as watching CNN and PBS.

Email Susan here. Phone Ext. 107

Amber Stark, Marketing and Communications Manager


Amber Stark has worked in marketing and communications since 2003, following a short, but insightful, career as a newspaper reporter. Her experience includes managing internal communications, crisis communications, public and media relations, and social media for corporate, higher education, and nonprofit organizations. Special professional interests include corporate social responsibility and creative team leadership.

Amber earned a bachelor’s degree in journalism from Bowling Green State University and a master’s degree in marketing and communications from Franklin University. Her SIOP responsibilities include media relations, social media and the Source.


Amber enjoys reading, crafting, and camping. She makes a mean pistachio icebox cake and rides a four-wheeler. She lives in Perrysburg with her husband Billy and son William.


You can find Amber on LinkedIn or email her here. Phone Ext. 109

Jayne Tegge, Member Engagement Manager

Jayne TeggeThe friendly voice answering the phone in the SIOP office may be Jayne Tegge, whose goal is to improve the SIOP member experience. Prior to SIOP, she spent eight years as a librarian, and has also worked at a variety of sales and customer service positions, and even owned a book business at one time. Her responsibilities at SIOP include daily membership processes and data quality, as well as managing volunteer operations. Jayne graduated from the University of Dayton with a BA in communications. She and her husband, Tim Tegge, are empty nesters. Jayne is an avid cook, cookbook collector, food preserver and all things “foodie.” She has a huge organic garden, yet squeezes in as much reading as possible at all times. She occasionally serves as a roadie for Tim, who is a part-time singer/songwriter, leading a local band called the Black Swamp Boys. Jayne was thrilled that she won a free Ford Fusion hybrid car at a professional conference last year!

Email Jayne here. Phone Ext. 104

Michelle Zavaleta, Communications and Governance Specialist

Michelle Zavaleta serves as SIOP’s Communications and Governance Specialist. Her primary responsibilties revolve around marketing and communications plans at the SIOP Administrative Office. She writes articles and scripts for various channels, conducts interviews, and coordinates annual conference speakers. Michelle has a BA in communication from Bowling Green State University and has all of her experience in non-profit organizations. In her free time, Michelle enjoys time with her family, antiques, baking, and watching documentaries. 

Email Michelle here. Phone Ext. 100