| Rohde & Schwarz USA, Inc. | Columbia | MD | $954M |
| Technical Communities, Inc. | San Mateo | CA | $355M |
| Teradyne, Inc. | North Reading | MA | $159M |
| Fluke Electronics Corp. | Everett | WA | $132M |
| Astronics Test Systems Inc.Orlando, FL · UEI LZJCLFKDYJJ3 | Orlando | FL | $125M |
| Keysight Technologies Inc. | Colorado Springs | CO | $124M |
| Tevet LLC | Greeneville | TN | $67.3M |
| Orbit Advanced Technologies, Inc. | Warminster | PA | $25.2M |
| Viavi Solutions Inc. | Germantown | MD | $24.8M |
| Phaostron Instrument And Electronic Company | Azusa | CA | $24.3M |
| Astronics Test Systems Inc.Irvine, CA · UEI Y9E5FB34KAG8 | Irvine | CA | $24M |
| CRFS, Inc. | Reston | VA | $22.2M |
| Testforce USA, Inc. | Addison | TX | $18.7M |
| Keysight Technologies, Inc. | Santa Rosa | CA | $18M |
| Charon Technologies LLC | Herndon | VA | $17.7M |
| Westest Engineering Corporation | Layton | UT | $17.5M |
| Tel-instrument Electronics Corp. | East Rutherford | NJ | $16.6M |
| Prime Technology LLC | North Branford | CT | $15.4M |
| Doble Engineering Company | Marlborough | MA | $15.3M |
| Fotronic Corporation | Woburn | MA | $15M |
| Nsi-mi Technologies Inc. | Suwanee | GA | $14.8M |
| Tektronix, Inc. | Beaverton | OR | $14.3M |
| Brandywine Communications | Santa Ana | CA | $13.1M |
| Hadland Imaging LLC | Santa Cruz | CA | $12.7M |
| Virginia Diodes, Inc. | Charlottesville | VA | $12.2M |
| Eclypse International Corporation | Corona | CA | $11.8M |
| Peerless Instrument Co. Inc. | Farmingdale | NY | $11.7M |
| Ets-lindgren Inc. | Wood Dale | IL | $11.4M |
| Habco Industries LLC | Glastonbury | CT | $11.4M |
| Ultrax Aerospace Inc. | Lees Summit | MO | $11.2M |
| QRC, LLC | Fredericksburg | VA | $9.23M |
| Pacific Instruments, Inc. | Concord | CA | $9.05M |
| Arc Technologies LLC | Amesbury | MA | $8.92M |
| Hottinger Bruel & Kjaer Inc.Marlborough, MA · UEI RHLAM7GSJGJ4 | Marlborough | MA | $8.91M |
| Edmo Distributors, Incorporated | Spokane Valley | WA | $8.79M |
| Dewesoft LLC | Whitehouse | OH | $7.4M |
| Dit-mco International LLC | Kansas City | MO | $6.81M |
| United Western Technologies Corp. | Kennewick | WA | $6.69M |
| MKC Electronics Inc. | Holbrook | NY | $6.66M |
| Viavi Solutionsllc | Wichita | KS | $6.64M |
| Diversified Technical Systems, Inc. | Seal Beach | CA | $6.07M |
| Anritsu Company | Morgan Hill | CA | $6.03M |
| Clarke Hess Communication Research Corp. | Medford | NY | $5.98M |
| Ttt-cubed Inc. | Fremont | CA | $5.87M |
| Crystal Instruments Corporation | Santa Clara | CA | $5.19M |
| Iet Labs Inc. | Roslyn Heights | NY | $4.81M |
| Gap Wireless Inc. | Seabrook | NH | $4.6M |
| Hughes Corp. | Coral Springs | FL | $4.48M |
| Transmille Calibration, Inc. | Colchester | VT | $4.47M |
| Delta Sigma, LLC | Kennesaw | GA | $4.44M |
| Ra Wood Associates LLC | Frankfort | NY | $4.27M |
| Xilectric, Inc. | Fall River | MA | $4.09M |
| Netacquire Corp. | Kirkland | WA | $4.01M |
| Itron Inc. | Liberty Lake | WA | $3.89M |
| Fluke Corp. | Everett | WA | $3.83M |
| Huntron Inc. | Mill Creek | WA | $3.59M |
| Mohr Test & Measurement LLC | Richland | WA | $3.57M |
| Advanced Integration, LLC | Reynoldsburg | OH | $3.45M |
| Arbin Instruments, Inc. | College Station | TX | $3.38M |
| Measurements International Inc. | Lake Mary | FL | $3.38M |
| Thunder Scientific Corp. | Albuquerque | NM | $3.32M |
| Corelis, Inc. | Cerritos | CA | $3.3M |
| Tech Resources, Inc. | Milford | NH | $3.27M |
| Teradyne Inc. | North Reading | MA | $3.09M |
| Transformational Security, LLC | Columbia | MD | $3.06M |
| Amplifier Research Corp. | Souderton | PA | $3.04M |
| Intersoft Electronics Inc. | Naples | FL | $2.93M |
| Columbia Research Laboratories, Inc. | Woodlyn | PA | $2.74M |
| L-1 Standards And Technology, Inc. | Sterling | VA | $2.7M |
| Sensor Concepts, LLC | Livermore | CA | $2.66M |
| Anritsu Americas Sales Company | Morgan Hill | CA | $2.58M |
| Tempo Communications, Inc. | Vista | CA | $2.54M |
| Taylor Hobson Inc. | Aurora | IL | $2.52M |
| Fischer Custom Communications Inc. | Torrance | CA | $2.48M |
| Precision Filters, Inc. | Ithaca | NY | $2.43M |
| Kistler Instrument Corporation | Buffalo | NY | $2.43M |
| Omicron Electronics Corp. USA | Houston | TX | $2.35M |
| Aim-usa LLC | Trevose | PA | $2.32M |
| Bloomy Controls Inc. | South Windsor | CT | $2.27M |
| Transient Plasma Systems, Inc. | Torrance | CA | $2.18M |
| Biomated Solutions LLC | Randolph | NJ | $2.17M |
| Experimental Design & Analysis Solutions, Inc. | Spring Hill | TN | $2.05M |
| Interworld Highway, LLC | Long Branch | NJ | $2.05M |
| Hottinger Bruel & Kjaer Inc.Duluth, GA · UEI C1H7UWEXRVN7 | Duluth | GA | $2.04M |
| Tegam, Inc. | Denver | CO | $2.03M |
| Psiber Data Systems Inc. | San Diego | CA | $1.81M |
| Microxact, Inc. | Radford | VA | $1.77M |
| Hi-techniques, Inc. | Madison | WI | $1.76M |
| Pickering Interfaces, Inc. | Tewksbury | MA | $1.75M |
| Hiller Measurements Inc. | Austin | TX | $1.57M |
| American Aerospace Controls Inc. | Farmingdale | NY | $1.55M |
| MCM Engineering, Inc. | Burlingame | CA | $1.51M |
| Seica Inc. | Haverhill | MA | $1.49M |
| Focus Micro Ondes Inc. | Saint-laurent | QC | $1.49M |
| Avo Multi-amp Corp. | Dallas | TX | $1.43M |
| Park Engineering Services Inc. | Flagstaff | AZ | $1.4M |
| Xsoptix LLC | Madison | CT | $1.37M |
| Zurich Instruments Ag | Zurich | | $1.37M |
| Lone Star Test, Inc. | Richardson | TX | $1.34M |
| Saelig Company, Inc. | Fairport | NY | $1.3M |
