In the period of its activity ZBiIS clients have included The following companies and institutions:
- Municipal Office Gostynin
- Municipality of Plock
- The City of Kutno
- Municipal Office in Żychlin
- Municipal Office in Łąck
- District Office Gostynin
- Polish Post Plock
- Polish Post Gostynin
- Forest District Gostynin
- Forest District Wloclawek
- State School of Music of Karol Szymanowski in Plock
- Primary School No. 3. of Defenders of Westerplatte in Gostynin
- School them. Maria Sklodowska-Curie in Gostynin
- Education Center School in Gostynin
- Primary School. H.Sienkiewicza in Strzelce
- Polimex SA
- Polimex Sices Poland Ltd.
- Sices Poland Ltd.
- Sices Montaz Ltd.
- Landi Stanbest Ltd.
- Energomontaz - North SA
- Technip Polska Ltd.
- Przedsiębiorstwo Robót Drogowo-Budowlanych S.A
- Mazowsze Regional Police
- Uriarte Polska
- Kruk Hospital
- River Shipyard Centromost