ABI Agentur Bonvini Investigation, Auskunftsbüro. abi-companies have a 30-year track record and corporate history. Mitgl. Fachverband Schweiz. Privatdetektive FSPD/World Association of Detectives Inc USA-WAD/Ermittlungen f. Industrie u. Wirtschaft. The only thing traditional about the abi-companies is its adherence to stringent quality control and complete dedication to a given assignment. everything else is high-tech and state-of-the-art. including the group’s government-level surveillance ability, virtually anywhere in the world where it matters today.