# A-One Geothermal, Inc.

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

- Legal business name: A-One Geothermal, Inc.
- Alternative and DBA names: McNair Backhoe Services Inc.
- Entity type: C corporation
- Original incorporation date: April 10, 1989
- Time in business: 37 years and 6 months
- Jurisdiction count: 5

## All known addresses

- 1645 135th St, Earlham, IA 50072 (listed in Iowa, California, Oregon)

## Registered states

- [California](https://index.baselayer.com/ca/f6a16154254c789b): Foreign registration
- [Iowa](https://index.baselayer.com/ia/7011cb3fcfe32674): Domestic registration
- [Oregon](https://index.baselayer.com/or/322c4f8af512f672): Foreign registration
- [Washington](https://index.baselayer.com/wa/beff842e299ad976): Foreign registration
- [Wisconsin](https://index.baselayer.com/wi/507a869760d38bef): Foreign registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/7011cb3fcfe32674)