03/18/2026 - GNSA Promotes Leslie Florestan to Client Services Manager.
Great Northern Staff Administrators (GNSA), a leading provider of payroll services and human capital management solutions for small and mid-market companies throughout the Northwest, announces the promotion of Leslie Florestan to the position of Client Services Manager.
"We recognized her outstanding dedication, leadership, and deep expertise she's developed, and has been with us for over more than a decade," said Katharina Fink, president of GNSA, when asked what drove the decision.
In her new role as Client Services Manager, Leslie will lead and support the client services team,
continuing her focus on delivering exceptional service while helping employees grow, develop their
skills, and achieve success.
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Leslie joined GNSA 13 years ago as a Payroll Specialist, where she quickly demonstrated her commitment to excellence and a strong understanding of payroll and human capital management. Through hard work, determination, and a passion for helping others succeed, she advanced through the
organization and became an integral part of the Implementation team, where she played a key role in supporting clients and ensuring successful system transitions.
Throughout her career at GNSA, Leslie has developed a reputation for being a natural leader with an exceptional knowledge of the industry. Her ability to guide teams, mentor colleagues, and build strong relationships with clients has made her an invaluable asset to GNSA.
“Leslie’s journey with GNSA is a true example of dedication, growth, and leadership. Over the past 13 years, she has consistently demonstrated a deep commitment to our clients and our team. Her veteran presence, combined with her passion for mentoring others, makes her the perfect person to lead our Client Service team. I am incredibly proud to see her step into this role and excited for the impact she will continue to make,” said Fink.
Outside of work, Leslie enjoys spending time with her family, tending to her garden, and supporting
the professional growth of those around her. Her passion for both her team and the clients she serves reflects the values that GNSA strives to uphold every day.
Please join us in congratulating Leslie Florestan on this well-deserved promotion.
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About GNSA
Residing in the heart of the Pacific Northwest for over 20 years, GNSA has established a customer portfolio that extends beyond our Portland, OR headquarters to include every state in the continental U.S. With over 175 years of combined experience, we have found that what really sets GNSA apart from our competitors is our people! Our motto consists of the never-ending belief that the customer experience is what is most important. For us to ensure this to our clients, we must have a staff that consists of Caring, Responsive, Exceptionally Bright individuals and, most importantly, Happy Employees! Meet the Team.
