---
schema_version: "secwatch.filing_event.v1"
accession: "0001709682-25-000030"
form_type: "8-K"
ticker: "CTOS"
cik: "0001709682"
company_name: "Custom Truck One Source, Inc."
filed_at: "2025-07-30T23:59:59+00:00"
generated_at: "2026-05-17T23:08:24.176449+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Custom Truck One Source Q2 revenue $511.5M (+20.9% YoY), Adj EBITDA $93.4M (+16.7%), reaffirms FY guidance

## Summary
- Total revenue $511.5M (+20.9% YoY); net loss $28.4M vs $24.5M loss in prior year.
- Adjusted EBITDA $93.4M (+16.7% YoY); Adjusted Gross Profit $156.5M (+17.0%).
- ERS fleet utilization improved to 77.6% (vs 71.7%); average OEC on rent up 16% to $1.21B.
- TES signed orders up ~30% YoY; sales backlog $334.8M (down from $478.2M YoY but within normal range).
- Reaffirms FY2025 guidance: revenue $1.97-2.06B, Adj EBITDA $370-390M; targets >$50M levered FCF.

## SEC filing metadata
- accession: 0001709682-25-000030
- form_type: 8-K
- ticker: CTOS
- cik: 0001709682
- company_name: Custom Truck One Source, Inc.
- filed_at: 2025-07-30T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1709682/000170968225000030/0001709682-25-000030-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1709682/000170968225000030/ctos-20250730.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001709682-25-000030
- JSON: https://secwatch.observer/filing/0001709682-25-000030.json
- Plain text: https://secwatch.observer/filing/0001709682-25-000030.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.