Melbourne has 98 managed IT and cybersecurity providers with a local office, the second-largest base of the three east-coast capitals covered on this site. 40 of the 98 run more than one office, a meaningfully higher multi-office share than Sydney's despite Sydney holding far more providers overall. Six Melbourne providers hold a real, on-file ISO/IEC 27001 certification -- a certificate number, an accreditation body and an expiry date on record, not a self-reported claim -- a noticeably smaller share of the total local base than Brisbane's, where certification is comparatively more common.
A local office matters most for on-site work; for anything delivered remotely, a provider based elsewhere can still serve a Melbourne client well. If a certificate matters to your decision, filter for it below rather than taking a badge on a provider's own website at face value; this list shows only certificates MSP Pie holds a record for.