Accredited Testing Labs in Connecticut
Compliance and testing laboratories in Connecticut that appear in the official FCC, CPSC, OSHA NRTL, FDA ASCA or ANAB registries. Ranked by number of registry accreditations — criteria on the methodology page.
| # | Laboratory | Location | Registry accreditations | Standards |
|---|---|---|---|---|
| 1 | Absolute Standards, Inc. | Middletown, Connecticut, United States | 1 | — |
| 2 | AccuStandard, Inc. | New Haven, Connecticut, United States | 1 | — |
| 3 | Aldinger Company, dba Holts Precision (S.W.CT) | South Windsor, Connecticut, United States | 1 | — |
| 4 | Alert Scientific, Inc. | East Hartford, Connecticut, United States | 1 | — |
| 5 | Ashcroft, Inc. | Stratford, Connecticut, United States | 1 | — |
| 6 | Custom Calibration Inc. | North Haven, Connecticut, United States | 1 | — |
| 7 | ETTER Engineering Co., Inc. | Bristol, Connecticut, United States | 1 | — |
| 8 | FMI Chemical, Inc. | Bloomfield, Connecticut, United States | 1 | — |
| 9 | Isocal LLC | Woodbury, Connecticut, United States | 1 | — |
| 10 | Millstone Medical Testing - CT, LLC | Bloomfield, Connecticut, United States | 1 | — |
| 11 | Raptor Scientific PPS | Berlin, Connecticut, United States | 1 | — |
| 12 | SMT Corporation | Sandy Hook, Connecticut, United States | 1 | — |
| 13 | State of Connecticut Department of Emergency Services & Public Protection Division of Scientific Services | Meriden, Connecticut, United States | 1 | — |
| 14 | United Service Company Inc. | West Hartford, Connecticut, United States | 1 | — |
Facts from the official registries as retrieved July 2026; no ratings or reviews. Ranking criteria: methodology.