Appian reported $636M of remaining performance obligations at 30 Sep 2026, up 10% from a year earlier and up 2% from the previous quarter. That is 0.8 years of trailing revenue already under contract. Book-to-bill last quarter: 1.04.
Net new backlog added in the latest quarter: $10.6M.
Over the last twelve months it turned about 137% of its opening backlog into revenue (12-month conversion).
71% of the backlog is due within the next twelve months.
Customer prepayments (contract liabilities) cover 54.0% of the backlog.
Twelve-month book-to-bill: 1.07, i.e. 1.07 of new orders for every 1 of revenue recognised.
Backlog growth minus revenue growth: -12 points — revenue is catching up with orders.
By backlog size it ranks 285th among US filers the cockpit tracks.
Appian 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
$636M
$843M
0.8 yrs
$344M
30 Jun 2026
$625M
$795M
0.8 yrs
$322M
31 Mar 2026
$600M
$763M
0.8 yrs
$327M
31 Dec 2025
$662M
$727M
0.9 yrs
$350M
30 Sep 2025
$577M
$691M
0.8 yrs
$284M
30 Jun 2025
$553M
$658M
0.8 yrs
$276M
31 Mar 2025
$519M
$634M
0.8 yrs
$262M
31 Dec 2024
$546M
$617M
0.9 yrs
$287M
30 Sep 2024
$470M
$596M
0.8 yrs
$228M
30 Jun 2024
$469M
$579M
0.8 yrs
$223M
31 Mar 2024
$468M
$560M
0.8 yrs
$226M
31 Dec 2023
$490M
$545M
0.9 yrs
$241M
Questions
What is Appian's backlog?
Appian reported $636M of remaining performance obligations at 30 Sep 2026, up 10% from a year earlier and up 2% from the previous quarter. That is 0.8 years of trailing revenue already under contract. Book-to-bill last quarter: 1.04.
How fast does Appian's backlog turn into revenue?
Over the last twelve months Appian recognised revenue equal to about 137% 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.