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Purchasing Manager
Capitol Region Education Council
111 Charter Oak Ave
Hartford, CT 06106
Phone: 860-509-3684
Fax: 860-524-4001
Photo of Ms. Kate M. Rotella, CPPO, MPA, NIGP-CPP

Ms. Kate M. Rotella, CPPO, MPA, NIGP-CPP

Procurement Director
South Carolina Department of Health & Human Services
1801 Main Street, 6th Floor
P.O. Box 8206
Columbia, SC 29201
Phone: 803-960-9058
Fax: 803-255-8211

Mrs. Mary L Sims, CPPO

Supervisor of Purchasing
Harford County Public Schools
Purchasing Department
102 S. Hickory Ave.
Bel Air, MD 21014
Photo of Ms. Bobbie Tolston, CPPO, CPPB, NIGP-CPP

Ms. Bobbie Tolston, CPPO, CPPB, NIGP-CPP

Bobbie Tolston, CPPO, CPPB Bobbie is a veteran who served in the U.S. Navy and received an honorable discharge. She graduated Cum Laude from Northeastern Illinois University where she earned a Bachelor’s Degree with a concentration in Business Administration. She has over 19 years of public procurement experience. Bobbie is currently the Supervisor of Purchasing for Harford County Public Schools where she oversees the day to day activities of purchasing and the distribution center. She has been successful with spearheading the implementation of several Enterprise wide technology enhancements during her career. These enhancements were geared towards streamlining business processes and increasing staff efficiencies and productivity. Bobbie has a broad range of procurement experience and utilizes her knowledge by assisting agencies to cultivate their procurement department. She has experience working with water utilities, local, and municipal government agencies. She has developed training programs for procurement professionals (i.e. procurement cards, procurement processes and procedures, etc.). In addition, she has provided training to various minority business during “How to do Business” outreach events. Bobbie is very passionate about the procurement profession and enjoys sharing her passion with others. She oftentimes acts as a mentor to other procurement professionals. It is her belief that by sharing her knowledge and experiences with others, this helps the procurement profession to grow! Bobbie has enjoyed being a member of NIGP since 1999.
3510 Vintage Trail
Woodstock, GA 30189
Phone: 770-686-1371
Fax: 770-528-8428
Photo of Mr. William J. Tommie, Jr., CPPO

Mr. William J. Tommie, Jr., CPPO

Professional Certification(s) obtained: CPPO

Work Experience – 1981-1989 – Manager of Purchasing, Greenwood School District 50, South Carolina 1989 – 2008 – Coordinator of Purchasing, School District 5 of Lexington and Richland Counties, South Carolina 2008-2012 – Director of Construction Procurement, School District of Pickens County, Pickens, South Carolina 2012 – Present – Director of Purchasing, Cobb County Government, Georgia.

On the Faculty of:
Fundamentals of Leadership and Management in Public Procurement
Sourcing in the Public Sector

Procurement Manager
City of Casselberry
95 Triplet Lake Drive
Casselberry, FL 32707
Photo of Mrs. Rhonda S. Ulmer, CPPO, C.P.M., NIGP-CPP

Mrs. Rhonda S. Ulmer, CPPO, C.P.M., NIGP-CPP

Rhonda Ulmer is currently the Procurement Manager for the City of Casselberry. She has over thirty years’ experience working in both private and public sector procurement. She began her purchasing career in 1973 managing contracts for the Trident Missile Program for General Dynamics Corporation. Her passion for procurement grew as she entered the public sector and gained experience from city, county, school board and higher education. She earned her B.A. Degree from the University of Central Florida and aspired to growth professionally with certifications. Currently a lifetime Certified Purchasing Manager and a Certified Public Procurement Officer (1994). Certified Negotiator (2012). She received the FAPPO Distinguished Service Award in 2008; Served as President of the Florida Association of Public Purchasing Officers (2000); and was President of the Central Florida Chapter of NIGP. Rhonda continues to support a number of professional organizations, through speaking and working on various committees. She has served on the Governor’s Task Force to assist in rewriting the Auditor selection procedures; NIGP Research Committee and instrumental in the vision for creation of a set of comprehensive principles, standards and procedures, (NIGP’s Values and Guiding Principles); as well as serving on the UPPCC Board of Examiners. Rhonda's hobbies include boating, biking, skiing and traveling.
111 Sandiford Drive
Stouffville, ON
L4A 0Z8
Photo of Mrs. Rashpal Uppal-Assi

Mrs. Rashpal Uppal-Assi

Rashpal Uppal-Assi is a seasoned supply chain management professional with expertise in procurement strategy, international business, learning design and academia, spanning over 10 years serving public, private and non-profit organizations. During this time, Rashpal founded her own strategic management consulting firm, working primarily with small and medium businesses. Rashpal has taught with various educational institutions in Toronto, teaching business courses at the degree, diploma and graduate program level. She holds a Master of Business Administration (MBA) from Athabasca University, an International Business Administration Diploma from Seneca College, is a Certified Supply Chain Management Professional (CSCMP) and a Certified International Trade Professional (CITP). Rashpal currently leads the Procurement Services Division at the Town of Whitchurch-Stouffville and has recently been appointed as a Board Director to the Canadian Public Procurement Council (CPPC).
Contracting Officer
Loudoun County
1 Harrison Street SE
Leesburg, VA 20175
Phone: 571-258-3144
Fax: 540-665-0537
Photo of Ms. Kristy D Varda, CPPO, CPPB, NIGP-CPP

Ms. Kristy D Varda, CPPO, CPPB, NIGP-CPP

Originally from Oklahoma and a proud Oklahoma State University Alum, Kristy spent 10 years as a military spouse before relocating to Virginia from Germany. Kristy completed her Masters in Biotechnology Studies in 2008 and her MBA in 2009 while working in a variety of industries. She began her official procurement career working as a Contract Specialist II for Fairfax County, specializing in procurement for Public Safety, IT and Libraries. In September of 2015, she became the Purchasing Supervisor for Frederick County Public Schools in Winchester, Virginia. Now she is a Capital Contracting Officer for Loudoun County Government. Her passion to help others grow in their procurement profession began with presenting webinars on Sole Sources and Software Procurement. She was part of the NIPG taskforce to write the Best Practices series on technology procurement. Most recently she worked on the team to develop the Pathways specialization course “Foundations of Technology Procurement”. She continues to work to build courses to enhance the learning opportunities for NIGP members as well as teaching both the Legal Aspects and Technology courses.
3206 52 Circle East
Palmetto, FL 34221
Photo of Ms. Theresa Webb, CPPO, CPPB, C.P.M., M.A., NIGP-CPP

Ms. Theresa Webb, CPPO, CPPB, C.P.M., M.A., NIGP-CPP

Theresa Webb, M.A., CPPO, CPPB, C.P.M. has over 30 years of experience in procurement in both the private and public sectors with about 18 years in public sector procurement. In her leadership roles, Theresa has overseen the procurement of goods, services, technology, construction, capital improvement and PCard Administration. She has a Bachelors' in Business Administration and a Masters' degree in Business Management. Theresa is a certified NIGP Instructor, and a current Chair of the NIGP Accreditation Committee. Theresa is a member of NIGP, FAPPO, and Tampa Bay Area Chapter of NIGP, and has been a member of multiple boards, committees, panels, task forces and councils for those organizations over the years. She was recognized by NIGP in 2013 as National Buyer of the Year.
State of Colorado - Retired
6945 Old Ranch Trail
Littleton, CO 80125
Photo of Ms. Christine O. Weber, CPPB, C.P.M.

Ms. Christine O. Weber, CPPB, C.P.M.

Christine has been a procurement professional for over 20 years.Her experience includes 10 years corporate procurement, management, training, and change management for companies in the Washington, D.C. area, such as Macy‘s Northeast, the J C Penney Corporation, and Creative Hairdressers, Inc.

Public procurement experience includes director-level and statewide experience at a wide variety of Colorado agencies, including Colorado State Patrol, University of Colorado, the Colorado Department of Human Services, and the State Purchasing & Contracts Office for Colorado.

She looks forward to supporting your organization with challenging, fun, and effective hands-on approaches to learning. As a seasoned professional, Christine easily relates to new buyers, strategic sourcing staff, or program staff, and also inspires executives responsible for producing cost-effective team results while operating within a challenging political environment.

On the Faculty of:

Practical Specifications Writing

Developing and Managing Requests for Proposals

Introduction to Public Procurement



Ethics: A Survival Kit for Public Procurement

Protests: Managing Options for Positive Results

Director, Contracts and Procurement
San Mateo County Transit District
1250 San Carlos Ave
San Carlos, CA 94070
Photo of Mr. Kevin C. Yin, CPPB

Mr. Kevin C. Yin, CPPB

Kevin has been in procurement for 20+ years, in both private and public sectors. Currently, he is the Director of Procurement & Contracts (Chief Procurement Officer) for TriMet in Portland, Oregon. He and his team are responsible for developing and administering the District's procurement policies and procedures, and all procurement activities.

Kevin's thoughts on learning... 1) You're never too old to learn. 2) It's forever. No one can ever take that knowledge away from you. 3) Learning should be fun (your brain may experience a bit pain, but it's temporary). Kevin is a member of both local NIGP chapters in Oregon, the Columbia Chapter of NIGP and the Oregon Public Purchasing Association (OPPA), and the Washington Chapter of NIGP. Kevin has served on committees and on the Board of the OPPA Chapter of NIGP, including serving as the OPPA President during FY2008-2009. He is currently serving as the Vice Chair of the NIGP Member Council.

Kevin graduated from the University of Oregon (Eugene, Oregon) in 1993 with BAs in Finance, Marketing, and Psychology. GO DUCKS!

Kevin lives in Oregon since 1989 and currently resides in the city of Happy Valley, a suburb of Portland. He is married to Kelly for over 24 years. They have two children, Ethan (16) and Abbie (14).

On the Faculty of:
CPPB Prep /
Developing and Managing RFPs in the Public Sector /
Introduction to Public Procurement

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