# TSI Incorporated

Business profile: public business information with links to supporting state records. Data as of October 16, 2026.

- Legal business name: TSI Incorporated
- Alternative and DBA names: Alnor Instruments; Alnor Instruments, Inc.; Dickey-John A Division of Tsi Incorporated; Dickey-John Division; TSI Instruments NC Inc.
- Entity type: C corporation
- Original incorporation date: March 30, 1961
- Time in business: 65 years and 6 months
- Jurisdiction count: 15

## All known addresses

- 500 Cardigan Rd, Saint Paul, MN 55126 (listed in Minnesota, California, Colorado, Indiana, Maryland, Massachusetts, New York, North Carolina, North Dakota, Ohio, West Virginia)
- 333 S 7th St Ste 3100, Minneapolis, MN 55402 (listed in Texas)

## Registered states

- [California](https://index.baselayer.com/ca/031135a2648d6692): Foreign registration, as Alnor Instruments
- [Colorado](https://index.baselayer.com/co/d4220445aafed131): Foreign registration
- [Illinois](https://index.baselayer.com/il/5fea16144f9c3d71): Foreign registration
- [Indiana](https://index.baselayer.com/in/b648a9acf435bf84): Foreign registration, as Dickey-John A Division of Tsi Incorporated
- [Maryland](https://index.baselayer.com/md/d3964d7ccb15ddde): Foreign registration
- [Massachusetts](https://index.baselayer.com/ma/47685a8455b77b36): Foreign registration
- [Minnesota](https://index.baselayer.com/mn/991ce43763657fb6): Domestic registration
- [New York](https://index.baselayer.com/ny/8b9b8d13e707f965): Foreign registration
- [North Carolina](https://index.baselayer.com/nc/caa7d6263ab96729): Foreign registration, as TSI Instruments NC Inc.
- [North Dakota](https://index.baselayer.com/nd/5865e5adc1db0720): Foreign registration
- [Ohio](https://index.baselayer.com/oh/041c56bda7804f68): Foreign registration
- [Pennsylvania](https://index.baselayer.com/pa/e05b3c3d0c76a093): Foreign registration
- [Texas](https://index.baselayer.com/tx/caaa22e8dcb958da): Foreign registration
- [Utah](https://index.baselayer.com/ut/303624e8944824f9): Foreign registration
- [West Virginia](https://index.baselayer.com/wv/d26a28081e67b338): Foreign registration

Source: public state registration records. Missing values are not a negative finding.

Cite as: Baselayer Business Index (https://index.baselayer.com/business/991ce43763657fb6)