subsurface investigations

Alliance Environmental Group, Inc. (Alliance) is a woman-owned environmental consulting company that solves clients' environmental, health and safety problems by investigating and assessing facilities and operations to protect personnel and assets. Alliance and its predecessors have provided environmental consulting services to institutional, commercial, educational and government clients since 1989, and have conducted over 3,500 environmental assessments, the majority asbestos related.

asbestos inspectionenvironmental assessmentsenvironmental consultingEnvironmental testingRegulatory Complianceremediationtank assessment and closure

B2Z Engineering, LLC is a Texas-proud, woman-owned civil and transportation engineering firm founded in 2009 and headquartered in Mission, Texas, with regional offices in Brownsville, Seguin, San Antonio, Austin and Houston. It has delivered over $1 billion in civil and transportation infrastructure projects and is a TxDOT certified civil engineering firm.

3D Modelingbridge and structural designconstruction engineering and inspectionconstruction managementconstruction materials testingdrainage design and hydrologic/hydraulic analysisdrone and GIS servicesfoundation designgeotechnical engineeringin-house drillinglaboratory testingpavement designPS&E design

Central Engineering Services is a full-service engineering firm specializing in A/E Services, Geotechnical, and Environmental Engineering solutions. Established in 2015, it has grown into a national multi-disciplinary firm of more than 30 geotechnical, environmental, and A/E professionals, serving local and federal projects across North America. It is a Service-Disabled Veteran-Owned firm, SBA Certified as an SDVOSB, and holds DBE certifications in Oregon and Washington.

A&E servicesconstruction observationenvironmental engineeringgeotechnical engineeringlaboratory analysispavement designproject managementremediation and cleanupseismic studies/retrofits

Environmental & Fueling Systems, LLC (E&FS) is a full-service environmental and fueling systems company headquartered at 20 Gurley Ave, Troy, NY. For over 25 years it has served commercial, industrial, municipal, and government clients across New York State with fuel maintenance, petroleum storage, environmental remediation, and DEC/EPA compliance support. The team includes EPA-certified technicians and a licensed geologist, and is available 24/7 for emergency response.

abrasive blasting and coatingbird guano abatementcathodic testingcooling tower cleaningDEC and EPA compliance inspectionsfuel filtration and polishingfuel sampling and testinglead abatementline cleaning and removalPCB decontaminationPhase I & II site assessmentssite monitoring and samplingsoil and groundwater remediationsoil excavation and disposaltank cleaning and removaltank installationtank maintenancetank tightness testingwater tank superchlorination

FR Engineering Group is a geotechnical, geostructural, and waterfront engineering firm servicing New England and Colorado since 2019. It offers design and construction support services to developers, property owners, public agencies, corporations, institutions, and energy companies, and is a certified WBE and DBE engineering firm.

Breakwaters/jettiesBulkheadscoastal engineeringDam inspection & remediation designdeep foundation designDrilled pier wallsFloating docks & marinasground improvementliquefaction analysisMooring facilitiespermitting servicesPiersRevetmentsSeawallssecant pile wallsshallow foundation designslope stabilitySoldier pile & lagging wallsunderpinning

Gredell Engineering Resources, Inc. (GER) is a civil and environmental engineering consulting firm founded in 2001 by Thomas R. Gredell, P.E. Based in Jefferson City, Missouri, with branch offices in Springfield, Missouri, and Olathe, Kansas, GER provides civil engineering design with an environmental focus, including waste facility designs, geologic evaluations, subsurface investigations, and environmental permitting and compliance services.

air permittingCADD drawingscivil engineering designenvironmental permitting and compliancegeologic/hydrogeologic evaluationsgroundwater modelingkarst/sinkhole analysisonsite wastewater treatment system designsite development

Green Diamond International was founded in 2008 in Afghanistan to support the U.S. Army's efforts to foster peace and prosperity in the region, and became a leading company in the design and construction of civil infrastructure projects. In 2009 it expanded to California and merged with local Afghan companies HBCC, MBCC, and Al Hooti of Dubai, UAE. After ceasing operations in Afghanistan following the 2021 U.S. military withdrawal, it continued in California and in 2024 re-established its headquarters in Washington State, serving nationwide and internati

aviation constructionBuilding Information Modeling (BIM)clash checkingconstruction inspection and testingCost estimationdesign reviewengineering and construction managementFalling Weight Deflectometer testinggeotechnical engineeringPavement engineeringPCI surveyspermitting assistancepreconstruction planningrisk managementschedulingSubcontractor Selectionsustainability and resilience consultingtransportation planning and designvalue engineering

Highlands Environmental Solutions, Inc. is an environmental consulting and services firm that solves environmental issues using common-sense solutions. It serves developers, property owners, attorneys, insurers, engineers, and organizations throughout the Southeast with proactive consulting, technical expertise, and guidance, from environmental assessments and geotechnical engineering to spill response planning and regulatory compliance.

emergency responseenvironmental consultingEnvironmental Remediationgeotechnical engineeringmaterials testingRegulatory Compliancesafety trainingtank cleaning and removal

KANE GeoTech, Inc. specializes in difficult civil and geotechnical engineering problems, including rockfall, debris flow and shallow landslide mitigation, geotechnical instrumentation, and geotechnical analysis and design. Founded in 1997 by Dr. William F. Kane, the company is described as America's leader in geohazard engineering and has engineered systems across the United States.

3D Modelingdebris flow mitigationdrone photogrammetryexpert witness testimonyForensic investigationsgeotechnical analysis and designGeotechnical instrumentationlandslide mitigationremote monitoringretaining wall engineeringrockfall mitigationslope stabilization