Holmstrup & Mortensen A/S is a Danish installer working out of Roskilde in Zealand. DBI approves it for automatiske brandalarmanlæg and varslingsanlæg — 2 current approvals, 232.542, 024.101 — under DBI Retningslinje 232 and DBI Retningslinje 24. Its fire-alarm approval names 4 panel platforms — a Danish approval scopes the firm and the systems together, not the firm alone. DBI certifies the named individual as well as the company, and 1 certified person is listed against this approval.