Meet the Company 5/15/2014

President: Andy Dangelo


Andy’s love of landscaping began at a young age and he pursued this passion by obtaining a landscape design degree from Ohio State University in 1985. He later became a certified arborist, recognized by the International Society of Arboriculture. Andy has been a resident of the Chagrin Valley his entire life and is responsible for the design and installation of many of the wonderful landscapes in this area. He also plays an active role in his community.


Vice-President & General Counsel: Kathleen Birkel Dangelo


Kathleen co-founded Ohio Valley with Andy in the first years of their marriage and has been instrumental in crafting the business and financial strategy of Ohio Valley that has allowed it to emerge as a leading landscape company in northeastern Ohio.

Vice-President of Sales and Operations: Jay Schwartz


Jay has been involved in the landscape industry for over twenty-five years. Jay earned his Bachelor’s degree from Tiffin University and has continued his green-industry education since. Jay lives in Columbia Station with his wife and two sons.

Jay previously owned J & K Landscapes & Design, Inc. for ten years— building loyalty with satisfied clients and creating beautiful landscapes that continue to delight. In 2009, Ohio Valley acquired J & K to allow it to effectively service the western and southern areas of Cleveland.

Jay’s primary function is to grow Ohio Valley’s west and south side presence. Jay’s expertise lies in his landscape construction and excavation. His designs and implementations have won numerous awards. He will expand Ohio Valley’s presence by identifying new projects as well as cross-selling all of Ohio Valley’s services.

Landscape Architect: Douglas Nemeckay, ASLA


Doug got his start in the landscape industry nearly 50 years ago while working for his brother’s landscaping company. From a young age, he developed a love for the outdoors and working with the land. He enhanced this passion by earning a Bachelor’s degree in Landscape Architecture from the Ohio State University in 1977. He became a Registered Landscape Architect after passing The Ohio State Boards in 1988.

Prior to joining the Ohio Valley Group, Doug was the principal and landscape architect at Douglas Nemeckay & Assoc., Inc. in Chagrin Falls for 26 years. He believes that in addition to creating beautiful settings for our landscapes, we must place a high priority on sustainability and environmental considerations. This will ensure our community is a good steward of the land. Doug and his wife have been residents of Solon for 25 years and have three adult children.

Landscape Maintenance Manager: John Knall


John is responsible for managing the equipment, inventory and storage yard. John’s association with Ohio Valley began in 2002 when he was hired as a maintenance crew leader. His tenure in that position has given him the insight necessary in his present managerial position.

John is a PLANET Lawnscape Industry Certified Manager in Lawn Care.

Office Manager: Mary D’Ambrosia


Mary is the Office Manager for Ohio Valley. She has been with Ohio Valley since 1998 and oversees all office procedures as well as many human resource functions.

Administration: Cheri Chapman


Cheri has long had a love of nature, which lead her to work 14 years at The Holden Arboretum in Kirtland, Ohio. While there, she enrolled in the Ohio Landscapers Association design classes, and then moved on to 11 years of landscape design. She brings her acquired knowledge of horticulture and design to The Ohio Valley Group, Inc. in an administrative role. She has a B.A. from Miami University.