Iron Mountain reported $300,000 of remaining performance obligations at 30 Sep 2026 and flat from the previous quarter. That is 0.0 years of trailing revenue already under contract. Book-to-bill last quarter: 1.00.
Net new backlog added in the latest quarter: $0.
25% of the backlog is due within the next twelve months.
Customer prepayments (contract liabilities) cover 126033.3% of the backlog.
By backlog size it ranks 553rd among US filers the cockpit tracks.
Iron Mountain backlog history
Remaining performance obligations at each quarter end (bars) against trailing twelve-month revenue (line).
Amounts in USD. Source: SEC XBRL filings.
Quarter end
Backlog (RPO)
TTM revenue
Coverage
Customer prepayments
30 Sep 2026
$300,000
$7.80B
0.0 yrs
$378M
30 Jun 2026
$300,000
$7.56B
0.0 yrs
$398M
31 Mar 2026
$300,000
$7.25B
0.0 yrs
$386M
31 Dec 2025
$300,000
$6.90B
0.0 yrs
$402M
Questions
What is Iron Mountain's backlog?
Iron Mountain reported $300,000 of remaining performance obligations at 30 Sep 2026 and flat from the previous quarter. That is 0.0 years of trailing revenue already under contract. Book-to-bill last quarter: 1.00.
About these numbers
Remaining performance obligations (RPO) are revenue a company has contracted but not yet recognised, as reported in its SEC filings (XBRL tag RevenueRemainingPerformanceObligation). Coverage = backlog ÷ trailing twelve-month revenue. Book-to-bill = (change in backlog + revenue) ÷ revenue. Conversion = revenue recognised ÷ the backlog at the start of each quarter, summed over four quarters. Counterparty values come from company filings and releases.