- Flow+
- Apollo Valves
- Western Gauge & Instrument (WGI)
- Sharpe
- Velan
- Flotite
- Elite
- Crane
- Watson McDaniel
- TLV
- Velan
- Kingston
- TLV
- SSI Strainers
- TLV
- Forbes Marshall
- Western Gauge & Instrument (WGI)
- Newco Valve
- Velan
- Flotite
- Flotite
- TlV
- Sharpe
- Texsteam
- Continental Disc Corporation (CDC)
- GROTH – Vents & Hatches
- GROTH – Emission Monitors
