- Century Plastics
- Container Handling Systems
- Container Handling Systems
- Houston Remediation Resources
- Houston Remediation Resources
- Howe-Baker Engineers Inc
- International Ozone
- International Ozone
- Novazone
- Omtec-Ozone Miracle Therapy
- Ozone Technology Inc
- Ozonice Co
- Pacific Ozone Technology Inc
- Russell County Respiratory
- Triatomic Environmental Inc