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Tetra Tech Inc

Contact Jim Wu
(Vice President, Corporate Finance)
3475 East Foothill Boulevard, Pasadena, 91107-6024, California, United States
Tel: (626) 470-2323
International offices


Global environmental services staff 16500
Global environmental consulting staff 14350
Work Area Details
  • Climate change & energy
  • Contaminated site assessment/remediation
  • Impact assessment
  • Environmental risk & due diligence
  • Environmental management & compliance
  • Waste management/circular economy
  • Water quality & resource management

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Tetra Tech wins $90m contract with US Air Force
Tetra Tech improves sustainability performance
Tetra Tech secures $125m USPS contract
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Strong demand in N America fuels environmental consulting market
Tetra Tech wins $21m EPA ecology & human health contract
Tetra Tech in green build win with US Army
Another record year for Tetra Tech
Tetra Tech wins USACE flood risk contract
Tetra Tech wins $500m USAID energy programme contract
CEO summit highlights industry imperatives from diversity to digitalisation
Tetra Tech names new president
Tetra Tech wins marine pollution contract targeting developing countries
Golder appointed for Greenland mineral mine ESIA
Top US enviro firms surge to growth, reports ENR
Tetra Tech wins $132m in superfund contracts
Tetra Tech completes on WYG
Tetra Tech reports H1 and $25m river restoration win
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Tetra Tech wins $51m superfund contract
Federal and state spending fuels Tetra Tech growth
Political confusion hampers ENR’s Top 200 US enviro firms
Tetra Tech steps up STEM programmes
Tetra Tech posts ‘highest ever’ H1 results
Digital innovation top of agenda for Global 23
US firms on acquisition trail
Strengthening recovery for global environmental consulting market
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Tetra Tech wins USAID contract to support clean energy in Central Asia
Tetra Tech strengthens sustainable infrastructure capabilities
ENR’s US top 200 hold steady in uncertain times
Big data and the age of analytics - according to Tetra Tech
CEO of RPS to retire, successor announced
Global mega trends in environmental consulting 2017
Trump takes wrecking ball to EPA
Coffey/Tetra Tech acquires Australian enviro consultancy ELA
Quoted environment & infrastructure players feel Trump effect
Tetra Tech sees record Q4 including 7% organic growth
Consultants on $400m US Army remediation framework
Coffey helps Tetra Tech to 4% growth in H1
Tetra Tech assists EPA’s Green Infrastructure Program
US market still growing, says EBI
Tetra Tech’s closes Coffey acquisition
Country Insight: riding the Brazilian roller coaster (part I)
Tetra Tech looks to Coffey to revive international business
Tetra Tech wins Anacostia River remediation contract
Tetra Tech to acquire Coffey
Tetra Tech acquires Cornerstone Environmental
Tetra Tech appointed to Washington DC river restoration
Tetra Tech awarded EPA and USACE contracts
Tetra Tech secures $185m remediation contract
Tetra Tech impeded by softness in US gov't and mining sectors
Tetra Tech secures $76m Superfund contract
Tetra Tech appointed to serve US federal agencies
Tetra Tech to assist EPA in minimising water contamination risk
Tetra Tech develops New Jersey hazard plan
Ten consultancies appointed by US National Guard
Market Insight: global trends in environmental consulting
Tetra Tech wins USAID natural resources management contract
Tetra Tech provides environmental assistance for Brazilian power plant
Tetra Tech helps clean up Canadian oil spill
US consultancy market growth slows
Tetra Tech posts stable FY 2013 net revenue
US Coast Guard selects framework consultancies
Tetra Tech wins $48m EPA Superfund support contract
Tetra Tech reappointed to US DoD, EPA remediation contracts
Tetra Tech wins mining remediation contract in Nevada
Tetra Tech reports strong demand from private sector for enviro services in H1
Tetra Tech wins $18m US air base cleanup contract
AECOM, Tetra Tech awarded USAID clean energy contract
Tetra Tech supports USAID in East Africa
Tetra Tech extends enviro capabilities with North American M&A
Global enviro consultancy market grows 4% to $26.5bn
Tetra Tech driven by international business in FY2012
Tetra Tech buys Brazilian oceanographic consultancy
Tetra Tech wins $24m brownfields revitalisation contract
Tetra Tech, Geosyntec, Jacobs win $91m NASA contracts
Tetra Tech wins Liberian forest management contract
Tetra Tech reports 12% revenue increase
3.6% growth in 2011 for US EC & engineering firms
Tetra Tech announces major enviro contract wins
Tetra Tech awarded Mexico low-carbon development project
“Acceleration” in North American enviro M&A
USAID $40m contract to protect Indonesian tropical forest awarded to Tetra Tech
Tetra Tech buys Quebec consultancy
Tetra Tech wins $50m remediation contract from US army
US analysts report surge in consulting/engineering M&A