| Business | Phone |
| Atlantic Coast Labs Inc 630 Churchmans Rd, Newark 19702 | (302) 266-9121 |
| Atlantic Hydrologic Inc 625 Dawson Dr # G, Newark 19713 | (302) 369-1610 |
| Batta Environmental Assoc 6 Garfield Way, Newark 19713 | (302) 737-3376 |
| James Mc Culley Iv Consultants 100 Lake Dr # 3, Newark 19702 | (302) 737-9335 |
| Northeast Regional Probing Inc 610 Thompson Station Rd, Newark 19711 | (302) 454-8974 |
| Precision Air Inc 2860 Ogletown Rd, Newark 19713 | (302) 737-9330 |
| Precision Air Inc 9 Louis Ct, Newark 19702 | (302) 239-3728 |
| Tetra Tech Inc 56 W Main St # 400, Newark 19702 | (302) 738-7551 |
| Wetlands Research Svc Po Box 156, Newark 19715 | (302) 738-7535 |