Private Utility Locating Services

Accurate. Compliant. On The Mark.
At On The Mark Locators, we deliver professional Private Utility Locating Services that help engineers, utility providers, property owners, and government agencies reduce risk, prevent costly damages, and keep projects moving forward. Our experienced team uses advanced locating technologies to identify underground utilities with precision across MD, PA, DE, NJ, DC, and VA.

Who Our Services Are For

Our private utility locating solutions are trusted by:
Whether you’re preparing for design, excavation, rehabilitation, or expansion, On The Mark Locators provides the subsurface clarity you need to build with confidence.

Private Utility Locating Services

Our Private Utility Locating Services go beyond public records and one-call systems to identify privately owned underground infrastructure. We locate:
Using electromagnetic (EM) locating and advanced detection methods, we ensure reliable results for projects throughout Maryland, Pennsylvania, Delaware, New Jersey, Washington DC, and Virginia.

Why Choose On The Mark Locators?