Public engineering firm directory

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GAI Consultants, Inc.

Indianapolis, IN

Transforming Ideas Into Reality®

WebsitePhone5 offices24 leaders4 publicationsFounded 1958Updated Jun 2026

Service detail: Environmental Services

Service: Environmental ServicesService: Environmental Impact Analysis and NEPA DocumentationService: Permitting and Regulatory ComplianceIndustry: Power GenerationIndustry: Renewable EnergyType: Civil Engineering+44 more

Synergy Environmental, Inc.

Royersford, PA

Synergy Environmental, Inc. is a full-service environmental consulting firm headquartered in Royersford, PA, with offices in Youngstown, OH, and Cherry Hill, NJ. Founded in 1998, Synergy serves public and private sector clients across the Mid-Atlantic and New England with site investigations, remediation design, storage tank management, regulatory compliance, and expert witness services. Licensed engineers and geologists deliver practical solutions under CERCLA, RCRA, and state environmental programs in Pennsylvania, New Jersey, New York, and other jurisdictions.

WebsitePhone3 officesFounded 1998Updated Jun 2026

Service detail: Storage Tank Management

Service: Storage Tank ManagementService: Portfolio Management and Due DiligenceService: Funding Source EvaluationIndustry: Environmental & RemediationIndustry: Oil & GasType: Environmental Engineering+14 more

Triad Engineering, Inc.

Scott Depot, WV

Triad Listens, Designs & Delivers.

Website10 officesFounded 1975Size Estimate: 100-249 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site Grading and Development PlansService: Stormwater ManagementIndustry: CommercialIndustry: ResidentialType: Civil Engineering+109 more