ADS, AKW, AIS, ARD, BDM, BGS, BSE, BDI, BAP, BRD, CDU, CIA, CPU, CSU, DIN, DDR, DSL, DNA, DNS, DME, DVD, ESP, ETA, EDV, EEG, FDP, FSV, FTP, FDJ, FIS, FAQ, FAZ, GAU, GEZ, GIS, HIV, HNO, IBM, ICE, IOC, IWF, IFA, IMC, JVA, LSD, LTU, MAN, MFG, MSN,
NPD, NSA, NRW, NVA, NDW, OHC, PSI, PAL, PVC, PDA, PIA, PLO, RIP, ROM, RWE, SPD, SED, SQL, THC, TÜV, TMA, UNO, USB, UFO, VOR, WDR, WHO, WGS, WEG, ZDF, ZIP.