the following are the list of top digital video recorder manufacturers :
- hangzhou hikvision digital technology co. ltd in China
- Cita Smart Solutions in United kingdom
- zhejiang uniview technologies co. ltd in China
- vandsec electronics limited in China
- longse technology Limited in China
- avtech corporation in Taiwan
- huper laboratories in Taiwan
- icatch inc in Taiwan
- hunt electronic co ltd in Taiwan
- FaceID Technology Co Ltd in Taiwan
- caddx systems inc in United State
- odeon cctv in India
- Shenzhen Anboson Industries Co. Ltd in China