Our Team of Professionals

William H. Stoller
Co-Founder, CEO, and ChairmanWilliam H. (Bill) Stoller is Founder, CEO and Chairman of the Board of Express Employment Professionals, a privately-held, leading staffing provider in the United States, Canada and South Africa. Founded in 1983, Express annually employs over 552,000 people across more than 825 franchise locations worldwide.
Additionally, Stoller is president of The Stoller Group, owning 27 franchises mostly in Oregon, Washington and Arizona, and owns Xenium HR, a professional employer organization. Bill is also the Founder of Stoller Family Estate in Dayton, Oregon, a vineyard and winery located on nearly 400 acres in the heart of Oregon’s Willamette Valley which produces primarily pinot noir and chardonnay wines. He also owns Chehalem winery in Newberg.
Stoller graduated from Pacific University in Forest Grove, Oregon with a bachelor’s degree in business and economics, and obtained a master’s degree from Portland State University in business administration. Prior to co-founding Express, Stoller began his career with Acme Personnel Services in 1973 as a consultant trainee and subsequently held positions as branch manager, group manager, district manager and regional manager for Oregon and Utah.

Julie Tate
Operating Partner and Franchise Developer
Brad Tate
Partner and Business DeveloperAs our Partner and Business Developer, Brad will continue to develop relationships with our current and prospective clients and our clinical staff.

Nina Cisneros
Partner and Director of Recruitment and Credentialing
Jenny A. Schwenke
Partner, President and DeveloperSchwenke graduated from the University of California Davis where she excelled as the captain of the Women’s Basketball team and earned a bachelor’s degree in sociology. She also earned the Certified Staffing Professionals designation from American Staffing Association.
Schwenke began her career with Express Employment Professionals in 1996 as a temporary associate, quickly developed into a leader, and subsequently held positions as staffing consultant, business developer, branch manager, regional manager and vice president of the Stoller region.
Today, Jenny’s responsibilities include growing current franchises and opening new franchises within the Stoller region. She excels at this through self-leadership and accountability. She has a passion for finding the right people to develop into strong leaders who succeed throughout their career. Jenny’s determination, leadership, and unique ability to connect with people, easily translates into her coaching and personal life.
Jenny has deep roots in the Portland/Metro area community. She is been an active youth sports coach for over 15 years and has coached all ages including primary, middle school, high school and college athletes. Jenny is just as passionate about volunteering as she is coaching. She currently volunteers her time as a “Big Sister” for Big Brothers Big Sisters Columbia Northwest and has remained an active member on their board of directors since 2008.
While passionate about work, coaching and volunteering, Jenny’s greatest passion is her family. Jenny has a blended family of 6 and all are extremely active as student athletes, partaking in a variety of different sports including basketball, football and soccer. Being a committed mother, mentor, and coach is what Jenny knows as normal. She loves giving back in the workplace, the community and her family, and is a great example of how one person can affect so many lives.

Wayne Marschall
Chief Financial Officer of The Stoller GroupMarschall holds a Bachelor of Science in Finance degree from Northeastern University and a Master of Business Administration from George Fox University.
Marschall began his 21 year career with Shell Oil Company and held positions of increasing responsibility in the petroleum refining and chemicals businesses in various U.S. locations and also Corporate Finance. As an expatriate in the U.K. for three years, he served as International Finance Director for a business unit of Shell and was responsible for the finance activities within Europe, Middle East, Africa and Asia.
Wayne is active in the Portland, Oregon business community serving as Board Member and President of the Portland Chapter of Financial Executives International. FEI is a non-profit, international organization of senior finance executives with over 11,000 members.

Veronica Foley
National Clinical DirectorPrior and including that practice, she managed the entire building which included many optometrists, Optometric assistants and dispensing opticians.