CECO Environmental and Tetra Tech are compared as rivals in environmental and industrial services. CECO shows strong growth in power and gas infrastructure projects with a $1.8B backlog, but faces challenges from rising debt ($727.7M) following the Thermon acquisition and GAAP losses. Tetra Tech benefits from water, defense, and digital projects with improved cash flow and lower leverage (0.88x net debt to EBITDA). Both stocks carry a Zacks Rank #3 (Hold), but Tetra Tech appears better positioned for long-term growth with stronger fundamentals and lower valuation.

CECO Environmental Corp. reported a 73% year-over-year increase in adjusted EBITDA to $40.2 million in Q2 2026, with margins expanding 154 basis points to 14.1%. The company raised its 2026 adjusted EBITDA guidance to $200-$225 million and expects mid-teens margins, supported by a $1.8 billion backlog and the Thermon acquisition.

CECO Environmental Corp. is experiencing strong momentum in its Industrial Process Solutions segment with Q2 2026 revenues up 8.4% YoY to $61.7M and orders surging 81% YoY to $90.3M. The company raised its 2026 revenue guidance to $1.300-$1.375B and reported a $1.82B backlog (up 129.4% from year-end 2025), providing strong visibility for future quarters. However, CECO trades at a premium valuation of 23.84X forward P/E versus the industry average of 19.80X.

Sterling Infrastructure delivered strong Q2 2026 results with adjusted EPS of $5.80 (beating consensus by 11.5%) and revenues of $1.17 billion (up 90.1% YoY), driven by E-Infrastructure Solutions growth and strategic acquisitions. The company raised full-year 2026 guidance significantly. However, shares have declined 15.8% since the earnings report, underperforming the S&P 500. Despite upward estimate revisions, the stock carries a Zacks Rank #3 (Hold) rating with an aggregate VGM Score of B.

Sarasin & Partners LLP sold over 4 million shares of Tetra Tech, reducing its portfolio position from 1.68% to 0.14%, potentially signaling concerns about government contract dynamics and company performance.

Paladin Energy completed a technical review of its Patterson Lake South uranium project in Saskatchewan, confirming strong economic potential with an estimated NPV of US$1,325 million and targeting first uranium production in 2031.

Applied Labs, founded by former Scale AI leaders, has raised $4.2 million in seed funding to develop reliable AI agents for complex support and operations tasks. The company aims to transform how businesses deploy AI agents by combining omnichannel interactions, sophisticated AI orchestration, and comprehensive evaluation tools.

The Green Building Initiative (GBI) has recognized 10 individuals with distinctions of Green Globes Fellow (GGF) and Guiding Principles Compliance Fellow (GPCF) for their outstanding contributions to sustainable and resilient building practices.

Tetra Tech reported strong Q4 results, with revenue up 9% and adjusted EPS beating estimates. However, the company's FY25 guidance was softer than expected, leading to a dip in the stock price.

Tetra Tech has secured a $39.3 million contract from USAID to support the Engendering Industries program, which aims to enhance gender equality and women's economic empowerment in various industries globally.

Tetra Tech, Donaldson and Atmus Filtration have been highlighted in this Industry Outlook article.

Higher adoption of alternative fuels and electric vehicles, along with high innovation costs, dampens the prospects of the Zacks Pollution Control industry. TTEK, DCI and ATMU are some stocks worth watching.