I don't know. I don't see much info on them...
Maybe a long time?
Zulu Tek
Company
Description
Stock price: ZULU (OTCMKTS) $0.02 +0.01 (+263.64%)
Jul 2, 11:09 AM EDT - Disclaimer
Founded: 1985
Parent organization: Enhanced Services Company
Subsidiaries: ZuluMedia, BrandsForLess.com