---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-019765"
form_type: "8-K"
ticker: "ONT"
cik: "0001643615"
company_name: "Onterris, Inc."
filed_at: "2023-05-09T23:59:59+00:00"
generated_at: "2026-06-15T09:17:44.200970+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Montrose Q1 rev $131.4M, net loss -$14.7M, adj EBITDA $16.6M; raises FY23 EBITDA guidance to $70-76M

## Summary
- Total revenue $131.4M (down 2.4% YoY); ex-COVID & discontinued lab rev up 17.2% to $126.2M.
- Net loss -$14.7M (-$0.63/share) vs -$7.5M (-$0.39) last year; Adjusted Net Income $3.4M vs $5.5M.
- Consolidated Adjusted EBITDA $16.6M (12.8% margin) vs $16.5M (11.2% margin) excluding discontinued lab.
- FY23 Adj EBITDA guidance raised to $70-76M from $68-74M; revenue outlook unchanged at $550-600M.
- Completed acquisitions of Frontier Analytical, Environmental Alliance, GreenPath Energy; Matrix Solutions expected Q2 close.

## SEC filing metadata
- accession: 0000950170-23-019765
- form_type: 8-K
- ticker: ONT
- cik: 0001643615
- company_name: Onterris, Inc.
- filed_at: 2023-05-09T23:59:59+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/1643615/000095017023019765/0000950170-23-019765-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1643615/000095017023019765/meg-20230509.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-019765
- JSON: https://secwatch.observer/filing/0000950170-23-019765.json
- Plain text: https://secwatch.observer/filing/0000950170-23-019765.txt

## Key facts
- Earnings Releases
  Onterris, Inc. reported the first quarter ended March 31, 2023 results: revenue $131.4 million, net income $(14.7) million, EPS $(0.63) per share. Guidance raised.
  - Period: the first quarter ended March 31, 2023
  - Revenue: $131.4 million
  - Net income: $(14.7) million
  - EPS: $(0.63) per share
  - Guidance: raised
  - Result: reported results
  source text: Total revenue in the first quarter of 2023 was $131.4 million compared to $134.7 million in the prior year quarter. The change in revenues was primarily due to lower demand for COVID-19 related services provided by CTEH, lower revenues in a specialty lab we are discontinuing, and the timing of projects in our Remediation and Reuse segment. Excluding revenue from COVID-19 related services of $3.8 million and $21.4 million, in the respective first quarters of 2023 and 2022, and the lab we are discontinuing of $1.4 million and $5.6 million, in the respective first quarters of 2023 and 2022, revenue in the first quarter of 2023 was $126.2 million compared to $107.7 million in the prior year quarter, an increase of 17.2% over the prior year period, mainly owing to strong organic growth in our Assessment, Permitting and Response and our Measurement and Analysis segments, an increase in CTEH environmental response revenues, and the contributions of acquisitions completed during the past twelv
  evidence_url: https://www.sec.gov/Archives/edgar/data/1643615/000095017023019765/0000950170-23-019765-index.htm

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