Keesen Landscape
Thomas Zimmermann is an accomplished Account Manager with extensive experience in the landscaping industry, currently serving at Keesen Landscape since December 2023. Prior to this role, Thomas held similar positions at Designscapes Colorado and Lifescape Colorado from July 2021 to December 2023 and May 2015 to July 2021, respectively. Thomas began the professional journey at Colorado State University, where responsibilities included Cool Season Trial Garden Coordinator and Annual Trial Garden Student Coordinator, alongside internships with L.I.D. Landscapes as a Landscape Technician and Urban Farmer as a Landscape Laborer. Thomas holds a Bachelor's Degree in Environmental Horticulture with a focus on Landscape Business, Landscape Design, and Contracting from Colorado State University, earned between 2010 and 2015.
Keesen Landscape
Keesen Enterprises, Inc. was founded in 1972. More than 40 years later, the company is still growing and thriving, having built a reputation for reliability, quality work and outstanding customer service. Many of our customers have been with us for years, and we enjoy a very high annual renewal rate in an industry that generally experiences extremely high customer turnover. In 2016, we joined forces with other landscape industry leaders to become a Heartland company. Heartland is dedicated to putting people first, building relationships and delivering exceptional service across Denver, Colorado. Together, we operate with a shared vision of excellence—combining the best practices with the right tools to put our team, our clients and their customers first—giving our all, in everything we do, every single day.