Numa, a leading provider in the drilling technology, has announced the addition of Gregg Hayes as Product Manager HDD, the company announced. Hayes, a recognized expert in horizontal directional drilling, joins Numa after 20 years of experience in the industry, will be based in New York and will head up business development, service, and support of Numa’s HDD products.

“Gregg is one of the foremost experts in HDD with a proven track history of teaching drillers the most effective ways to drill using pneumatic hammers and bits in horizontal drilling applications,” says Neal Kuszewski, vice president of sales. “He is a great addition to our team and further demonstrates Numa commitment to providing the best drilling resources in the industry.”

For the past five years, Hayes was a top HDD salesperson, selling into multiple US markets while also focusing on the further development of horizontal rock drilling products. Previously, he served in various sales and management roles for companies selling tooling, drilling fluids, bits, reamers, rock tools, swivels, and more.

“Throughout my career, I have recognized Numa to be the industry leader in rock drilling products,” Hayes says. “I am very excited to join Numa and continue their long history of providing customers with the right products, expertise, and support.”  

Since its beginning in 1985, Numa has become a major manufacturer of DTH hammers and bits for the domestic and international drilling industry. The company designs and builds downhole hammers and bits for drilling vertical and horizontal holes 3½ to 48 inches (89-1,219 millimeters) in diameter. To learn more about Numa, visit