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Kathleen Umholtz | Colliers | Columbia

Kathleen Umholtz

Client Services Coordinator

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Professional Summary

As a Client Services Coordinator at Colliers International | South Carolina, my role is to support the Retail Services Team with administrative and marketing tasks.

Additionally, as an IT Service Technician, I assist with information technology support and resources statewide.

I thrive with my organizational skills, being customer service-oriented and quickly learning and adapting to the fast-paced needs of clients and brokers.


In 2021, I completed the American Marketing Association / Digital Marketing Institute digital marketing certification program becoming a Certified Professional Digital Marketer.


Prior to joining Colliers International, I worked as an administrative and marketing assistant for Vincentsen Blasi Architects, a New Jersey-based architect, for almost 20 years. There I gained valuable experience working with the state government, multiple municipalities and private clients putting together Request for Proposals (RFPs), Request for Qualifications (RFQs) and PowerPoint presentations for Historic Commission and Board of Adjustment hearings. I assisted in the development of the company website with a web developer and updated it regularly. I also set up the company’s first social media page and updated with completed projects and relevant articles.

Memberships & Involvements


AMA - American Marketing Association Member
DMI - Digital Marketing Institute Member
ICSC - Innovating Commerce Serving Communities


In 2013, I started working with Streetlight Mission, a New Jersey-based charity that works with the underprivileged and homeless. Every year, Streetlight Mission hosted a grand Christmas party where I was able to share the experience and hard work with my son by setting up tables and putting together coloring books and activities for kids. When my family and I moved to South Carolina, I wanted to continue my volunteer work in the same field. Through Colliers, I learned of Harvest Hope Food Bank, which is the perfect place for myself and my son to give back to our community.



Service Lines

Property Marketing

My Team

Featured News

Aug 3, 2021

Kathleen Umholtz of Colliers completes Certified Digital Marketing Professional certification

Columbia, SC - Colliers | South Carolina is pleased to announce that Kathleen Umholtz has received the Certified Digital Marketing Professional (CDMP) certification through the American Marketing Association and the Digital Marketing Institute™.
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Sep 11, 2019

Kathleen Umholtz transitions to Client Services Coordinator role at Colliers International

Columbia, SC – Kathleen Umholtz has transitioned to a new role at Colliers International | South Carolina as a Client Services Coordinator, working alongside the Retail Services Team in the Columbia office.
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