| TRTech Resources, INC | Milford | — | ◐ LIKELY ACTIVE |
| TFTeledyne Flir Commercial Systems INC. | Hudson | — | ◐ LIKELY ACTIVE |
| TITeledyne Instruments INC | Portsmouth | — | ◐ LIKELY ACTIVE |
| BEBeede Electrical Instrument CO INC | Concord | — | ◐ LIKELY ACTIVE |
| HRHudson - Rpm Distributors LLC | Nashua | — | ◐ LIKELY ACTIVE |
| USUnited Staging & Rigging, LLC | Salem | — | ◐ LIKELY ACTIVE |
| AFAbc Fabricators INC | Laconia | — | ◇ UNVERIFIED |
| ACAdvanced Circuit Technology INC. | Nashua | — | ◇ UNVERIFIED |
Benchmark Electronics-hudson Div | Hudson | — | ◇ UNVERIFIED |
| CCCelestica CORP | Salem | — | ◇ UNVERIFIED |
| CACobham Antenna Systems | Exeter | — | ◇ UNVERIFIED |
| CICorfin Industries LLC | Salem | — | ◇ UNVERIFIED |
| ESElbit Systems of America Merrimack Operations | Merrimack | — | ◇ UNVERIFIED |
| ECElectropac CO INC | Manchester | — | ◇ UNVERIFIED |
| FIFireye INC | Derry | — | ◇ UNVERIFIED |
| FDFujifilm Dimatix, INC. | Lebanon | — | ◇ UNVERIFIED |
| GEGeneral Electric Meters Division | Somersworth | — | ◇ UNVERIFIED |
| HSHirel Systems LLC (formerly Dt Magnetics) | Dover | — | ◇ UNVERIFIED |
| MDMass Design INC | Nashua | — | ◇ UNVERIFIED |
| ODObrien D G INC | Seabrook | — | ◇ UNVERIFIED |
| QIQesidyne INC | Hudson | — | ◇ UNVERIFIED |
| SCSanmina-sci CORP Hadco CORP a Subsidiary | Hudson | — | ◇ UNVERIFIED |
| SSpartronics | Plaistow | — | ◇ UNVERIFIED |
| SASpx Aids to Navigation | Tilton | — | ◇ UNVERIFIED |
| TNThermo Neslab | Newington | — | ◇ UNVERIFIED |
| VIVibro-meter INC | Londonderry | — | ◇ UNVERIFIED |
| 9N91 Northeastern Blvd | Nashua | 100–499 | ◐ LIKELY ACTIVE |
| APAdvanced Programs, INC | Salem | — | ◐ LIKELY ACTIVE |
| AAAudio Accessories INC | Marlow | — | ◐ LIKELY ACTIVE |
| BSBAE Systems Electronic Systems PTP | Hudson | 500+ | ◐ LIKELY ACTIVE |
| BSBae Systems Information and Electronic Systems Integration INC. | Merrimack | — | ◐ LIKELY ACTIVE |
| BSBae Systems Information & Electronic Systems Integration INC | Merrimack | — | ◐ LIKELY ACTIVE |
| BSBae Systems Information & Electronic Systems Integration INC | Manchester | — | ◐ LIKELY ACTIVE |
| BLBiotage, LLC Salem, NH | Salem | 20–99 | ◐ LIKELY ACTIVE |
| BNBluecatbio Nh, INC. | Lebanon | — | ◐ LIKELY ACTIVE |
| BOBow Office | Bow | 1–19 | ◐ LIKELY ACTIVE |
| CAChauvin Arnoux, Inc. | Dover | 20–99 | ◐ LIKELY ACTIVE |
| CRCostello, Rick | Goshen | — | ◐ LIKELY ACTIVE |
| EBEagle Biosciences, INC | Amherst | — | ▲ REPORTED CLOSED |
| ESElbit Systems of America - MER | Merrimack | 500+ | ◐ LIKELY ACTIVE |
| EMEngineered Materials Hudson | Hudson | 20–99 | ◐ LIKELY ACTIVE |
| F1Facility 1 | Bedford | 100–499 | ◐ LIKELY ACTIVE |
| FIFormiq INC | Loudon | — | ◐ LIKELY ACTIVE |
| FEFrothingham Electronics Corporation | Wakefield | — | ◐ LIKELY ACTIVE |
| FIFujifilm Integrated Inkjet Solutions | Lebanon | 20–99 | ◐ LIKELY ACTIVE |
| GWGap Wireless INC | Seabrook | — | ◐ LIKELY ACTIVE |
| GCGentex Corporation-Manchester | Manchester | 100–499 | ◐ LIKELY ACTIVE |
| GRGowanda Rcd LLC | Manchester | — | ◐ LIKELY ACTIVE |
| HCHd Clean, LLC | Londonderry | — | ◐ LIKELY ACTIVE |
| HAHiden Analytical INC | Peterborough | — | ◐ LIKELY ACTIVE |