- Universitas UK. PETRA
- PT. Batu Corona (rokok ADAMAS)
- UD. Matahari - Madiun (dist snack)
- Sriwijaya-III variasi - Blora
- Sriwijaya-II variasi - Bojonegoro
- Karya Langgeng (supplier consumer good & toiletries)
- PT. Cipta Mitra Kualitama (payroll for national XL, Mobile8, Trikomsel)
- PT. Cipta Reksa Pitama (payroll for national Hutchison/Three, i-Mobile)
- tokokado.net / Djiraf.com - Online Shop
- Djiraf toko kado & suvenir (retail & grosir) - Surabaya & Lombok
- Kelapa Gading snack - Surabaya
- Berkat Abadi (dist CERES) - Madiun
- Kampus ITATS - Surabaya (Sistem informasi Akademik & adm.pembayaran)
- REMAJA - Surabaya (dist. besi cor)
- Layar restaurant - Surabaya
- Surya Gemilang (supplier tissue) - Surabaya
- PT. Platinum Investment : www.platinuminvestment.net (portal investasi online JSX)
- UD. Sinar (dist CERES) - Pamekasan
- Bintang Jaya (dist POPICE) - Bojonegoro
- PT. Tulus Citra (importer/supplier buah supermarket) - Surabaya
- Media sticker / Modified sticker - Surabaya
- Paris a Voir - franchise parfum - Surabaya
- Sejahtera - Surabaya (dist underwear)
- PT. Victory Sukses - (supplier flavor & chemical)
- Cahaya Baru - Surabaya (dist sepatu & sandal)
- PT. Asia Polymer - Surabaya
- Cahaya Logam - Surabaya (dist bahan bangunan)
- UD. Kencana Sakti - Surabaya (dist alat teknik)
- Mitra Karya Sejati - Surabaya (sparepart ori Toyota, Daihatsu, Isuzu)
sebelum 2006 : - Bintang Anugrah (dist P&G, CERES, GILETTE, SWW)
- Surya Jaya (distributor sparepart, oli, ban) - Bojonegoro
- Griya Dharma Kusuma (Hotel ***) - Bojonegoro
- Sriwijaya variasi - Bojonegoro
- Algamart - Bojonegoro
- Permata Borsalino - Bojonegoro
- SatuDua - Bojonegoro
- PR. 369 tobacco - Bojonegoro
- PT. Perdana Jaya
- Pemkab Bojonegoro - software KTP
- Pemkab Bojonegoro - software Daftar Urut Kepangkatan
Maintenance: - PT. IITC (maintenance)
- PT. Gudang Garam - Bojonegoro (maintenance)
- PT. Bentoel - Bojonegoro (LAN, maintenance)
- Bank BNI46 - Bojonegoro (LAN, maintenance)
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