Bridget Sheridan, Co-owner
Bridget Sheridan founded Listerman & Associates in 1998 and is the majority stockholder. She manages the company’s financial and administrative functions, working closely with bankers, accounting firm and health care providers. Her presence and roles within the company – directing operational focus and setting goals for everyone – brings a strong sense of fairness and accountability to our business.
Beyond her leadership of Listerman & Associates, Bridget has long had a deep love for horses and the art/sport of Dressage. It’s a passion that has always been fully supported by her family. In fact, her first horse was a wedding gift from David. She finds working and competing with the horses fulfilling physically, mentally and spiritually. Beyond the captivating nature of their beauty and power, Bridget sees that that her relationships with her horses offer a true metaphor for life.
Mike Lee, Sales Manager
Mike Lee is a Horticulturist with Team Listerman. A graduate of The Ohio State University School of Horticulture, Mike has spent the last 40+ years working in the industry. His tremendous experience is split between every facet of Nursery Production and Direct Sales. During this period, he worked throughout the Midwest, also putting in major stints on the West Coast. Notably, Mike took on a number of declining sales territories in the west and, turned them into profitable, seven-figure company assets.
Today, Mike relishes the diversity of challenges he faces at Listerman. He says, “Every day brings with it a new opportunity to help my customers achieve their vision”. The Company’s reputation for successfully sourcing very difficult to find plant material has made Listerman the trusted, go-to resource for some of the country’s finest landscape architects. On a personal note, Mike enjoys cooking for family and friends. He’s an avid cyclist and also has a Level 5 Scuba license.
Angie Davenport, Office Manager
Angie first met David while working in the nursery business when she was still in high school, when she took on the responsibility of entering orders and invoicing. In July 2015, Angie started managing the office at Listerman and Associates. Her responsibilities now include order entry, invoicing, maintaining project spreadsheets and all customer and vendor accounts.
In her spare time, Angie enjoys watching her daughter, Emma, play soccer and softball. Her other daughter, Audrey, also plays softball and shows cattle at a number of Ohio county fairs. She also spends time with her son Tyler, his wife and her grand daughters. . Two years ago, Angie became the head coach of the Girl’s bowling team at Tecumseh.
Steffen Listerman, Infrastructure
Steffen graduated from Wright State University with a B.S. in Biology. After graduation, he entered the family business, learning the ropes by taking on a wide range of tasks. He did everything from tagging trees to getting involved with marketing and various IT issues. His ability to successfully manage a diverse number of projects, has now lead him to greater responsibilities dealing with the Company’s infrastructure.
Currently, he is managing the integration of the Saleforce app, handling the production of a new trade show booth and related technology, while driving multiple direct marketing campaigns for two new product lines. Steffen enjoys attending live sporting and music events, in his spare time.
David Listerman, Co-owner
David Listerman graduated from the University of Kentucky with a BS in Ornamental Horticulture. Upon graduation, he started working at a wholesale nursery – first as the manager of the wholesale center, then spending 15 years in outside sales, covering an eight-state territory. During this time, David established his strong relationships with an unprecedented variety of wholesale nursery growers, contractors and landscape architects. The experience allowed him to develop his unique industry perspective.
He and his wife and business partner, Bridget Sheridan, are the proud parents of two boys, Gunnar and Steffen. Gunnar, who was born with Duchenne Muscular Dystrophy, has taught his parents the things that are truly important in life. They are committed to helping find a cure by supporting Parent Project Muscular Dystrophy. Steffen, their youngest son, is now a college graduate and a competitive swimmer at the college level. David also continues to serve as Facilities President of the nationally ranked club swim team, the Dayton Raiders.
Sharon Carter, Logistics
Sharon began working in the nursery business in 1988, with responsibility for entering orders and inventorying the entire nursery. She worked with David, becoming his in-house support person while he traveled and worked with customers. When David left the nursery, Sharon moved on to work with a large landscaping firm where she assisted customers and scheduled the crews. In July of 2000, Sharon started managing the office at Listerman and Associates. Over the years, her responsibilities have grown significantly and she now handles all the Logistics for the company.
Sharon enjoys spending time and vacationing with family and friends, gardening and enjoying the great outdoors. She also loves taking care of the Listerman’s dog, Lucy, for long weekends.
Kaitlin Sterwerf, Sales Support
Kaitlin is the newest member of Team Listerman. Born and raised in Indiana, she graduated from Purdue University with a Bachelor of Science degree in Horticultural Sciences. While studying at Purdue, Kaitlin worked as a Teaching Assistant. Her career has taken her to the Holden Arboretum in Cleveland and the Cincinnati Zoo Botanical Gardens.
Currently, Kaitlin handles a wide range of support to the primary sales team, as well as working with our customers inquiries, quoting jobs and entering orders. Her favorite part of the job so far, is visiting our nursery partners and learning about their vast inventories. She is an avid gardener, enjoys four-wheeling and spends her time in winter, hunting for deer.