query: SELECT ?developer ?developerLabel (COUNT(?software) AS ?count) WHERE {
    ?software (p:P31/ps:P31/wdt:P279*) wd:Q7397.
    ?software wdt:P178 ?developer.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
  GROUP BY ?developer ?developerLabel
  ORDER BY DESC(?count)
  LIMIT 25