Our expertise will earn your trust.
We’re proud of our reputation.
Our work is highly specialized and sometimes involves hazardous materials, so we only hire experienced and credentialed staff whom we trust to wear our name. You’ll know your technician is from Sullivan & Associates when they conduct a thorough inspection, deliver a comprehensive report, and provide top-notch customer service.
Over 20 years of experience.
Our technicians comply with regulations set by the American Society for Nondestructive Testing (ASNT) and are recertified every three years in accordance with ASNT mandates. But we don’t stop there. We regularly train our employees on new techniques to ensure our customers receive the most accurate, efficient, and state-of-the-art testing.
Specialized fields include: ASME, API, AWS, AWWA, ANSI, ASTM, ABS, MIL-STD, NAVSEA, and NBIC.
Our Team

Patrick J. Sullivan
Patrick began his NDT career in 1980 with classroom training and OJT to become a Level I technician, proceeded to become a Level II inspector in all phases of NDT, advanced to Lead Inspector and Office Manager of multiple NDT service facilities, and in 1985, at the age of 27, further excelled to become an NDT Level III Examiner in RT, UT, MT, PT & VT.
In 1993, Patrick then broadened his inspection knowledge and training and became a certified API-653 Storage Tank Inspector and in 1994 became a certified API-510 Pressure Vessel Inspector.
In September of 1995, Patrick founded Sullivan & Associates. His business acumen, combined with his expertise and knowledge of all phases of NDT, lead him to the decision to start a business which catered to diverse companies, offering them the highest levels of NDT service, the latest and most comprehensive technology and meticulously completed reports. Patrick has since brought his company to the forefront of the NDT community. Through hard work and long hours, he has made Sullivan & Associates a business that both his clients and employees can appreciate.
John A. Arrants
John began his career in NDT with training and experience in the United States Navy in 1991 and proudly served his country for six years on various battle-ready support ships for Naval Submarine and surface Destroyer vessels deployed around the globe.
John began his employment with Sullivan & Associates, Inc. in 1997 and with strengths in creativity, drive and leadership, took on the responsibilities of Lead Inspector. John is currently an NDT Level III in VT / MT / PT / RT and UT and an API-510, 570 and 653 certified inspector, and serves as the company Radiation Safety Officer as liaison with South Carolina Department of Health and Environmental Control (DHEC) and the Nuclear Regulatory Commission (NRC). John advanced and was promoted to Vice-President of Operations in 2010 with responsibilities for sales, inspector scheduling, client interaction and API inspection projects.
He thrives on challenges, particularly those that expand the company’s reach and reputation as a leader in quality NDT and API inspections.
Safety / Security
Sullivan & Associates is registered with, complies with, and is Governed by the Rules, Codes and Protocols of some of the Nation’s highest Agencies in regards to Security and Safety.










Support & Contributions
Sullivan & Associates is a proud supporter and contributor to agencies that prevent and alleviate human and animal suffering in the face of emergencies, disasters, and cruelties. We also honor and strongly support our brave service men and women who fight and protect our freedom.











