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Septic Registry

Landmark Engineering, Inc

DesignerNewark · New Castle County, Delaware

Call (302) 737-9335

The state record

Name as listed
Landmark Engineering, Inc
Phone as listed
(302) 737-9335
Licence number
4568B
Licence class
Class B (Standard Designer), Class C (Engineered Designer)
City
Newark
County of record
New Castle County
Record published
August 26, 2026
Licensing agency
Delaware Department of Natural Resources and Environmental Control

What this licence covers

Certified as licensed system designer
Georgia certifies installers and pumpers separately. Landmark Engineering, Inc appears on the DNREC Licensed On-Site Wastewater Licensees roster only — for the other job you would need a company on the other roster.

What this listing does and does not tell you

Landmark Engineering, Inc appears on Delaware’s septic licensing records as a licensed system designer, as published August 26, 2026. That is a statement by Delaware DNREC that the licence was held when the record was compiled.

It is not a rating, a review, an endorsement or a guarantee of insurance, price or workmanship — and licences lapse. Nothing on this page comes from the company itself, and no company pays to be here.

To confirm the licence is current today, check with DNREC, or the state's own licensee dataset. Step by step →

Questions about Landmark Engineering, Inc

Is Landmark Engineering, Inc licensed for septic work in Delaware?
Landmark Engineering, Inc appears on Delaware DNREC's records under Class B (Standard Designer), Class C (Engineered Designer) 4568B, as published August 26, 2026, filed under New Castle County. Licences can lapse between publications, so confirm it is current before hiring.
What is Landmark Engineering, Inc licensed to do?
Georgia certifies installers and pumpers separately. Landmark Engineering, Inc appears on the DNREC Licensed On-Site Wastewater Licensees roster only — for the other job you would need a company on the other roster.
How do I verify Landmark Engineering, Inc's licence myself?
Check with DNREC, or the state's own licensee dataset, quoting 4568B. Nothing on this page comes from the company, and we do not verify anyone ourselves — we republish the state record and name it.
Who else is licensed near Landmark Engineering, Inc?
New Castle County has 38 licensed septic businesses on the same record. Worth knowing when the first company you call cannot come out for a fortnight.

Other licensed companies in New Castle County

All 38 in New Castle County →