The restructure has led to the creation of new departments and internal promotion for several members of staff.
Richard Gill is the new head of sales with responsibility for sales managers and the new business development team, a newly-created department which will be led by Roger McGivern.
Andrea Questari and Dean Jackson, who have both been with the Yorkshire company for a decade, have been promoted to the role of sales managers and will co-manager day-to-day sales operations.
Mark Wood is now the Green-tech brand development manager and will oversee Green-tree Soils, Regency Feeds and John Chambers Wildflower Seeds.
In addition there have been several new recruits across all departments with further planned at various projected growth stages.
Managing director Rachel Kay said: "All five key players in the new sales structure have extensive knowledge and a wealth of experience of the customer base and industry. I am delighted that we have been able to promote from within the business and capitalise upon their skills.
"This is a great move for them personally as well as gearing Green-tech up for the next stage of growth. We’re all really looking forward to the opportunities that lie ahead."