AVN is a leading research and development firm with core competencies in the areas of chemicals and chemical manufacturing, technical engineering and advanced software technologies. With our deep technical heritage and uncommon lab and pilot plan facilities, we are working with our customers around the world to solve the toughest problems in science and technology.

Costello follows the Code of Ethics as outlined by the American Institute of Chemical Engineers and the National Society of Professional Engineers. COSTELLO provides the chemical engineering industry with innovative chemical and environmental engineering services, advanced and emerging process technologies, and regulatory compliance support that optimizes client expenditures and manpower requirements.