| Name | Address | Phone# Fax# | Web Site | License/certificates | |
| JENNINGS EXCAVATION INCORPORATED | 14 CLINTON STREET, HOLLIS NH 03049 | http://www.jennexc.com | info@jennexc.com | Company SC: Y Emp. ADSW: Y |
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| LEIGHTON A WHITE INC | 468 ROUTE 13 SOUTH, MILFORD NH 03055-3488 | (603) 673-2294 P | www.leightonawhite.com | peter.watton@leightonawhite.com | Company SC: Y Emp. ADSW: N |
| RPF ASSOCIATES INC | 320 FIRST NH TURNPIKE, NORTHWOOD NH 03261 | (603) 942-5432 P (603) 942-5300 F | www.airpf.com | dennisf@airpf.com | Company SC: Y Emp. ADSW: N |
| TERRACON CONSULTANTS INC | 77 SUNDIAL AVE, SUITE 401W MANCHESTER NH 03103 | (603) 647-9700 P (603) 647-4432 F | www.terracon.com | ljdwyer@terracon.com | Company SC: Y Emp. ADSW: Y |
| THOMAS DUNNE | 206 BIBLE HILL RD, BRADFORD NH 03278 | (603) 456-3504 P | Company SC: Y Emp. ADSW: N |