Pictured (left to right): Joshua Corna, Mark Corna, Jim Negron
Corna Kokosing's professionals are differentiated by their years of experience and their superior commitment to quality and integrity. The 'proof' is the fact that our clients request them - over and over again.
Mark Corna, President
"I believe that relationships and reputation are the most important factors to our success. To have good relationships and to maintain a good reputation requires extraordinary people with good values. We are fortunate to have so many of these people working with us."
Mark brings more than 35 years of construction experience. Mark Corna is a hands-on leader that actively participates as design team and quality control principal.
James Negron, Executive Vice President
"Our passion for building is shown in our service to our clients and the quality of workmanship performed on our projects."
Jimmy personifies an extraordinary person with good values. He has worked his way up in the company from a carpenter to the Executive Vice President. He brings energy and passion to every project with which he is involved. Continuously praised by his clients for his outstanding customer relationship skills, Jim is a straight-forward, diplomatic and fair communicator.
Joshua Corna, Vice President
"From the time that I spent working with my grandfather until now working with my father, I have always been told to do quality work, treat the client with fairness and respect, and protect their money and budget as if it were my own."
Joshua has been around construction since birth. He began working for us during summers at the age of 14. After graduation from college Joshua spent 10 years in the field learning how to build. A third-generation leader in construction, Joshua directs all quality control efforts within the company and oversees all operations aspects of the business.














