Mitra Kami
PT. ANEKA TUNA INDONESIA 1 GEMPOL (SUPPORT PRODUCTION)
PT. ANEKA TUNA INDONESIA 2 PANDAAN (SUPPORT PRODUCTION)
PT. TURBOTECH INDONESIA (CLEANING SERVICES & PRODUCTION)
CV. SURYA MAKMUR
CV. SURYA MAKMUR (PRODUCTION)
PT. JONES LANG LASALLE (TRANSPORT & OFFICE SUPPLIES)
PT. LNS INDONESIA (CLEANING SERVICES)
PT. GEPSI
PT. GEPSI (TRANSPORT & OFFICE SUPPLIES)
PT. GREENSMART (SECURITY & CLEANING SERVICES)
SEKOLAHAN KB, TK, SD, SMP, SMA PETRA SURABAYA (SECURITY & CLEANING SERVICES)