Emcor reported $18.6B of remaining performance obligations at 30 Sep 2026, up 47% from a year earlier and up 8% from the previous quarter. That is 0.9 years of trailing revenue already under contract. Book-to-bill last quarter: 1.26.
Net new backlog added in the latest quarter: $1.43B.
Over the last twelve months it turned about 136% of its opening backlog into revenue (12-month conversion).
100% of the backlog is due within the next twelve months.
Customer prepayments (contract liabilities) cover 16.0% of the backlog.
Twelve-month book-to-bill: 1.30, i.e. 1.30 of new orders for every 1 of revenue recognised.
Backlog growth minus revenue growth: +25 points — orders are running ahead of revenue.
By backlog size it ranks 53rd among US filers the cockpit tracks.
Emcor 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
$18.6B
$19.8B
0.9 yrs
$2.97B
30 Jun 2026
$17.1B
$18.6B
0.9 yrs
$2.61B
31 Mar 2026
$15.6B
$17.7B
0.9 yrs
$2.42B
31 Dec 2025
$13.3B
$17.0B
0.8 yrs
$2.33B
30 Sep 2025
$12.6B
$16.2B
0.8 yrs
$2.14B
30 Jun 2025
$11.9B
$15.6B
0.8 yrs
$2.13B
31 Mar 2025
$11.8B
$15.0B
0.8 yrs
$2.06B
31 Dec 2024
$10.1B
$14.6B
0.7 yrs
$2.05B
30 Sep 2024
$9.79B
$14.2B
0.7 yrs
$1.88B
30 Jun 2024
$9.00B
$13.7B
0.7 yrs
$1.78B
31 Mar 2024
$9.18B
$13.1B
0.7 yrs
$1.65B
31 Dec 2023
$8.85B
$12.6B
0.7 yrs
$1.60B
Questions
What is Emcor's backlog?
Emcor reported $18.6B of remaining performance obligations at 30 Sep 2026, up 47% from a year earlier and up 8% from the previous quarter. That is 0.9 years of trailing revenue already under contract. Book-to-bill last quarter: 1.26.
How fast does Emcor's backlog turn into revenue?
Over the last twelve months Emcor recognised revenue equal to about 136% of the backlog it started each quarter with.
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.