CECO Environmental (Peerless)

CECO Environmental Corp. (NASDAQ: CECO) is a diversified environmental technology provider employing over 1,600 professionals across 25-plus facilities in the US and eight countries, with headquarters in Addison, Texas. The Peerless Water brand, founded in 1933, delivers water and wastewater treatment equipment spanning MBBR (Moving Bed Bioreactor) and MBR (Membrane Bioreactor) sewage treatment systems; sand, activated carbon, multimedia, and iron and heavy metals filtration; ultrafiltration, ceramic membrane, and microfiltration systems; SWRO and BWRO reverse osmosis desalination; water makers; ion exchange resin and electro-deionization (EDI) demineralization; condensate polishing mixed bed columns; Ferrate-based advanced oxidation; and mechanical vapor recompression (MVR) zero liquid discharge systems. Additional CECO water brands include Compass Water Solutions (oily water separation, fresh water makers, RO), DS21 (demineralized water, produced water, sewage treatment), Kemco Systems (industrial water reuse with over 10,000 installations since 1969), and Index Water Systems (engineering and project management). On the air quality side, CECO produces Peerless composite louvers featuring radar-absorbing stealth technology for military and marine applications, regenerative thermal oxidizers under the Adwest, EIS, and WK brands, and Hee-Duall Bio-Pro biofiltration systems. The company reported over one billion dollars in backlog as of early 2026 and serves oil and gas, power generation, petrochemical, lithium battery manufacturing, marine and defense, and CCUS markets.