Guerrini belongs to two organizations that set a high standard in the green industry. As a company we are members of MNLA (Massachusetts Nursery and Landscape Association) and MLP (Massachusetts landscape professionals) MLP offers a certification program Called MCLP (Massachusetts Certified Landscape Professional)  MNLA offers a certification program called MCH (Massachusetts certified Horticulturist) Our Certified employees gives our clients assurance and peace of mind from initial consultation to final competition of the project.

The MCH certification is a voluntary program to accomplish the following objectives:

• To upgrade the professionalism of individuals in the field of commercial horticulture and the industry itself;
• To increase the education and pride of green industry employees; and
• To inform the public of increased industry professionalism and competence.

MNLA members work to promote the environmental wellbeing of our state as well as the highest levels of business ethics within their profession. Established in 1910, the Massachusetts Nursery & Landscape Association, Inc. (MNLA) is a nonprofit organization whose members are businesses and individuals who are committed to promoting environmental awareness and the highest standards of the Massachusetts nursery and landscape industry.

MCLP Certification helps customers by providing peace of mind that our employees can do the job correctly, offering knowledge that leads to greater vitality and beauty of their landscape, and assurance that our employees are the best in the industry.

For more than 30 years, MLP has elevated the professional standards and business success of its members through education, certification, advocacy and networking.