Nisi & C. Synthesy is an Italian consultancy founded in 1995 by Dr. Antonio Nisi, specialising in food safety and indoor environmental health. Based in Bari, the company brings together a multidisciplinary team of 20 professionals to support public and private organisations in improving quality, safety and compliance.

Its services include consultancy for food and feed businesses, assistance with permits and technical documentation, food-label review, risk assessments, shelf-life studies, analyses and consumer testing. The firm helps clients establish and implement management systems for voluntary certification, and conducts first- and second-party audits tailored to their needs. It also provides in-person and distance training in the food sector, along with internship opportunities and technical-scientific support for research and innovation.

Environmental services focus on Legionella risk prevention and control, water-system sanitation, aeraulic systems and indoor environments, as well as radon exposure monitoring. Nisi & C. Synthesy also supports clients in liaising with competent authorities and provides technical consulting when needed.