Available sources disagree on the actual number of installations. [liedtke93]_ mentions 2000 systems were installed by 1985, but [gmdbericht86a]_ counts only 1000 systems by the end of 1986. Amongst the users were a growing number of schools: 20 in 1982 ([alwr82]_, part 4, p. 13) and 500 secondary schools by 1986 [computerwoche86b]_. A few of them are known by name:
- Helmholtz-Gymnasium Bonn [computerwoche79b]_ [gmdspiegel84b]_
- Rhein-Sieg-Gymnasium Sankt Augustin [gmdbericht82]_
- Max-Planck-Gymnasium Bielefeld
- Ceciliengymnasium Bielefeld ([elannewsletter81a]_ p. 21)
- Gymnasium Wesermünde [eumelspiegel81b]_
- Carl Duisberg Gymnasium, Wuppertal [eumelspiegel81b]_
- Theodor Heuss Gymnasium, Hagen
EUMEL was also used by HRZ Bielefeld and at GMD Bonn, as well as TU Berlin [hahn79]_ and TU Darmstadt.
Additionally 400 lawyers ran advodat on EUMEL in 1987 [cr87a]_. A survey amongst those located in Hannover in 1994 revealed four of 56 (7%) law offices still ran EUMEL machines eight years after intruduction of ErgoJUR and advodat [jurpc94]_.
GMD itself sold 22, 11 and 102 copies in 1982, ’83 and ’84 respectively. These numbers do not include copies sold by one of the 3, 4 and 7 licensees. [ttpreis85]_
By mid 1985 support for the Japanese Kanji writing system was added to EUMEL [gmdspiegel85d]_. A newly founded corporation NISSIN Products Corp. Tokyo sold the product on the Japanese market [gmdbericht85]_.