Lintern Corporation
- Manufacture severe and heavy duty air conditioning and air filtration systems for the industrial crane market.
- http://www.lintern.com/

Hawco Manufacturing Co.
- Manufacturer for crane attachments, clamshell buckets and grapples.
- http://www.hawcomfg.com/

Greer Company
- Design and manufacturing of specialized load indication equipment for the crane industry.
- http://www.greercompany.com/