---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-009319"
form_type: "8-K"
ticker: "TTEK"
cik: "0000831641"
company_name: "TETRA TECH INC"
filed_at: "2023-02-01T23:59:59+00:00"
generated_at: "2026-06-20T04:28:14.981866+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Tetra Tech Q1: Record net revenue $737M, adj. EPS $1.34 (+13% YoY), dividend raised 15% to $0.23

## Summary
- Record net revenue $737M; adjusted EPS $1.34, up 13% YoY; record backlog $3.81B (+11% YoY).
- Adjusted operating income $97M (+17% YoY); adjusted EBITDA margin 14.0% (record high).
- Board declared $0.23/share quarterly dividend, +15% YoY, payable Feb 24 to record Feb 13; 35th consecutive quarterly dividend.
- Closed RPS Group acquisition adding 5,000 staff; expands UK water and energy transformation capabilities.
- New orders ~$1B in quarter; double-digit growth in both government and commercial end markets.

## SEC filing metadata
- accession: 0001104659-23-009319
- form_type: 8-K
- ticker: TTEK
- cik: 0000831641
- company_name: TETRA TECH INC
- filed_at: 2023-02-01T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/831641/000110465923009319/0001104659-23-009319-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/831641/000110465923009319/tm235101d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-009319
- JSON: https://secwatch.observer/filing/0001104659-23-009319.json
- Plain text: https://secwatch.observer/filing/0001104659-23-009319.txt

## Key facts
- Earnings Releases
  TETRA TECH INC reported first quarter ended January 1, 2023 results: revenue $737 million, EPS $2.18.
  - Period: first quarter ended January 1, 2023
  - Revenue: $737 million
  - EPS: $2.18
  - Result: reported results
  source text: Revenue in the first quarter totaled $895 million and revenue, net of subcontractor costs (net revenue), 1 was $737 million. Operating income was $92 million; adjusted operating income was $97 million, up 17% year-over-year, which reflects a 90-basis point increase to an all-time high adjusted EBITDA 1 margin of 14.0%. Earnings per share (“EPS”) was $2.18; adjusted EPS was $1.34, up 13% over first quarter fiscal 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/831641/000110465923009319/0001104659-23-009319-index.htm

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